Release 3.2.2

Closes #7889.

.builds/alpine.yml

@@ -0,0 +1,25 @@
+image: alpine/edge
+packages:
+  - cmake
+  - ninja
+  - ncurses-dev
+  - pcre2-dev
+  - python3
+  - py-pip
+sources:
+  - https://git.sr.ht/~faho/fish
+tasks:
+  - build: |
+          pip3 install pexpect
+          cd fish
+          mkdir build || :
+          cd build
+          cmake -G Ninja .. \
+          -DCMAKE_INSTALL_PREFIX=/usr \
+          -DCMAKE_INSTALL_DATADIR=share \
+          -DCMAKE_INSTALL_DOCDIR=share/doc/fish \
+          -DCMAKE_INSTALL_SYSCONFDIR=/etc
+          ninja
+  - test: |
+          cd fish/build
+          env SHOW_INTERACTIVE_LOG=1 ninja test

.builds/arch.yml

@@ -0,0 +1,22 @@
+image: archlinux
+packages:
+  - cmake
+  - ninja
+  - python
+  - python-pexpect
+sources:
+  - https://git.sr.ht/~faho/fish
+tasks:
+  - build: |
+          cd fish
+          mkdir build || :
+          cd build
+          cmake -G Ninja .. \
+          -DCMAKE_INSTALL_PREFIX=/usr \
+          -DCMAKE_INSTALL_DATADIR=share \
+          -DCMAKE_INSTALL_DOCDIR=share/doc/fish \
+          -DCMAKE_INSTALL_SYSCONFDIR=/etc
+          ninja
+  - test: |
+          cd fish/build
+          env SHOW_INTERACTIVE_LOG=1 ninja test

.builds/freebsd.yml

@@ -0,0 +1,26 @@
+image: freebsd/latest
+packages:
+  - ncurses
+  - gcc
+  - gettext
+  - cmake
+  - gmake
+  - pcre2
+  - python
+  - py37-pexpect
+sources:
+  - https://git.sr.ht/~faho/fish
+tasks:
+  - build: |
+          cd fish
+          mkdir build || :
+          cd build
+          cmake .. \
+          -DCMAKE_INSTALL_PREFIX=/usr \
+          -DCMAKE_INSTALL_DATADIR=share \
+          -DCMAKE_INSTALL_DOCDIR=share/doc/fish \
+          -DCMAKE_INSTALL_SYSCONFDIR=/etc
+          gmake -j2
+  - test: |
+          cd fish/build
+          gmake test SHOW_INTERACTIVE_LOG=1

.clang-format

@@ -0,0 +1,16 @@
+# Use the Google style with these modifications:
+#
+# 1) lines can be up to 100 chars long rather than 80, and
+# 2) use a four space indent rather than two spaces.
+#
+BasedOnStyle: Google
+ColumnLimit: 100
+IndentWidth: 4
+
+# Place config.h first always.
+IncludeCategories:
+  - Regex: '^"config.h"'
+    Priority: -1
+
+# We don't want OCLint pragmas to be reformatted.
+CommentPragmas: '^!OCLINT'

.clang-tidy

@@ -0,0 +1,17 @@
+---
+Checks:          'clang-diagnostic-*,clang-analyzer-*,-clang-analyzer-valist.Uninitialized,cert-*,performance-*,portability-*,-modernize-use-auto,modernize-loop-convert,modernize-use-bool-literals,modernize-use-using,hicpp-uppercase-literal-suffix,readability-make-member-function-const,readability-redundant-string-init,readability-inconsistent-declaration-parameter-name,readability-redundant-access-specifiers,-performance-noexcept-move-constructor,-cert-dcl37-c,-cert-dcl50-cpp,-cert-dcl51-cpp,-cert-str34-c,-cert-env33-c'
+WarningsAsErrors: ''
+HeaderFilterRegex: ''
+AnalyzeTemporaryDtors: false
+FormatStyle:     File
+CheckOptions:
+  - key:             cert-dcl16-c.NewSuffixes
+    value:           'L;LL;LU;LLU'
+  - key:             cert-oop54-cpp.WarnOnlyIfThisHasSuspiciousField
+    value:           '0'
+  - key:             modernize-loop-convert.MinConfidence
+    value:           'risky'
+  - key:             modernize-use-auto.RemoveStars
+    value:           '1'
+...
+

.editorconfig

@@ -0,0 +1,22 @@
+root = true
+
+[*]
+indent_size = 4
+indent_style = space
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+max_line_length = 100
+
+[{Makefile,*.in}]
+indent_style = tab
+
+[*.{md,rst}]
+trim_trailing_whitespace = false
+
+[*.{sh,ac}]
+indent_size = 2
+
+[Dockerfile]
+indent_size = 2

.gitattributes

@@ -1,20 +1,31 @@
+# normalize newlines
+* text=auto
+*.fish text
+*.bat eol=crlf
+
+# let git show off diff hunk headers, help git diff -L:
+# https://git-scm.com/docs/gitattributes
+*.cpp diff=cpp
+*.h diff=cpp
+*.py diff=py
+# add a [diff "fish"] to git config with pattern
+*.fish diff=fish
+
+# omit from git archive
 .gitattributes export-ignore
 .gitignore export-ignore
-/build_tools/make_svn_completions.fish export-ignore
-/build_tools/description-pak export-ignore
-/build_tools/make_hg_completions.fish export-ignore
-/build_tools/make_vcs_completions.fish export-ignore
-/build_tools/make_vcs_completions_generic.fish export-ignore
-/build_tools/osx_package_resources export-ignore
-/build_tools/osx_package_resources/terminal_logo.png export-ignore
-/build_tools/osx_package_resources/welcome.rtf export-ignore
-/build_tools/make_csv_completions.fish export-ignore
-/build_tools/osx_distribution.xml export-ignore
 /build_tools/make_tarball.sh export-ignore
-/build_tools/make_deb.sh export-ignore
-/build_tools/osx_package_scripts export-ignore
-/build_tools/osx_package_scripts/add-shell export-ignore
-/build_tools/osx_package_scripts/postinstall export-ignore
-/build_tools/make_pkg.sh export-ignore
-/build_tools/make_darcs_completions.fish export-ignore
+/debian export-ignore
+/debian/* export-ignore
+/.github export-ignore
+/.github/* export-ignore
+/.builds export-ignore
+/.builds/* export-ignore
+/.travis.yml export-ignore
 
+# for linguist; let github identify our project as C++ instead of C due to pcre2
+/pcre2/* linguist-vendored
+angular.js linguist-vendored
+/doc_src/* linguist-documentation
+*.fish linguist-language=fish
+/tests/*.in linguist-language=fish

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,14 @@
+<!--
+Please tell us which fish version you are using by executing the following:
+
+  fish --version
+  echo $version
+
+Please tell us which operating system and terminal you are using. The output of `uname -a` and `echo $TERM` may be helpful in this regard although other commands might be relevant in your specific situation.
+
+Please tell us if you tried fish without third-party customizations by executing this command and whether it affected the behavior you are reporting:
+
+  sh -c 'env HOME=$(mktemp -d) fish'
+
+Tell us how to reproduce the problem. Including an asciinema.org recording is useful for problems that involve the visual display of fish output such as its prompt.
+-->

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,11 @@
+## Description
+
+Talk about your changes here.
+
+Fixes issue #
+
+## TODOs:
+<!-- Just check off what what we know been done so far. We can help you with this stuff. -->
+- [ ] Changes to fish usage are reflected in user documentation/manpages.
+- [ ] Tests have been added for regressions fixed
+- [ ] User-visible changes noted in CHANGELOG.rst

.github/workflows/lockthreads.yml

@@ -0,0 +1,16 @@
+name: 'Lock threads'
+
+on:
+  schedule:
+    - cron: '0 18 * * *'
+
+jobs:
+  lock:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: dessant/lock-threads@v2
+        with:
+          github-token: ${{ github.token }}
+          issue-lock-inactive-days: '180'
+          pr-lock-inactive-days: '180'
+          issue-exclude-labels: 'question'

.github/workflows/main.yml

@@ -0,0 +1,129 @@
+name: C/C++ CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  ubuntu:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install deps
+      run: |
+        sudo apt install gettext libncurses5-dev libpcre2-dev python3-pip
+        sudo pip3 install pexpect
+    - name: cmake
+      env:
+          # Some warnings upgraded to errors to match Open Build Service platforms
+          CXXFLAGS: "-Werror=address -Werror=return-type"
+      run: |
+        mkdir build && cd build
+        cmake ..
+    - name: make
+      run: |
+        make
+    - name: make test
+      run: |
+        make test
+
+  ubuntu-32bit-vendored-pcre2:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install deps
+      run: |
+        sudo apt update
+        sudo apt install gettext lib32ncurses5-dev python3-pip g++-multilib
+        sudo pip3 install pexpect
+    - name: cmake
+      env:
+          CXXFLAGS: "-m32 -Werror=address -Werror=return-type"
+          CFLAGS: "-m32"
+      run: |
+        mkdir build && cd build
+        cmake ..
+    - name: make
+      run: |
+        make
+    - name: make test
+      run: |
+        make test
+
+  ubuntu-asan:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install deps
+      run: |
+        sudo apt install gettext libncurses5-dev libpcre2-dev python3-pip
+        sudo pip3 install pexpect
+    - name: cmake
+      env:
+          CC: clang
+          CXX: clang++
+          CXXFLAGS: "-fno-omit-frame-pointer -fsanitize=undefined -fsanitize=address"
+          ASAN_OPTIONS: check_initialization_order=1:detect_stack_use_after_return=1:detect_leaks=1
+          UBSAN_OPTIONS: print_stacktrace=1:report_error_type=1:suppressions=$TRAVIS_BUILD_DIR/build_tools/ubsan.blacklist
+      run: |
+        mkdir build && cd build
+        cmake ..
+    - name: make
+      run: |
+        make
+    - name: make test
+      run: |
+        make test
+
+  ubuntu-threadsan:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install deps
+      run: |
+        sudo apt install gettext libncurses5-dev libpcre2-dev python3-pip
+        sudo pip3 install pexpect
+    - name: cmake
+      env:
+          CC: clang
+          CXX: clang++
+          CXXFLAGS: "-fsanitize=thread"
+      run: |
+        mkdir build && cd build
+        cmake ..
+    - name: make
+      run: |
+        make
+    - name: make test
+      run: |
+        make test
+
+  macos:
+
+    runs-on: macos-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install deps
+      run: |
+        sudo pip3 install pexpect
+    - name: cmake
+      run: |
+        mkdir build && cd build
+        cmake -DWITH_GETTEXT=NO ..
+    - name: make
+      run: |
+        make
+    - name: make test
+      run: |
+        make test

.gitignore

@@ -1,37 +1,91 @@
-*.o
-*~
-*.exe
+# Note that some of the patterns below should be in an individual's
+# ~/.config/git/ignore file. For example, ".DS_Store" from people working on
+# MacOS.
+
+# File extensions that should never be checked in regardless of which project
+# directory they reside in.
+*.DS_Store
+*.a
+*.app
+*.d
+*.dll
+*.dylib
+*.exe
+*.gch
+*.la
+*.lai
+*.lib
+*.lo
+*.log
+*.new
+*.o
+*.obj
+*.orig
+!tests/*.out
+*.out
+*.pch
+*.slo
+*.so
+*.xccheckout
+*bak
+*~
+*~HEAD
+.AppleDouble
+.LSOverride
+.Trash-*
+._*
+Desktop.ini
+Thumbs.db
+ehthumbs.db
+
+messages.pot
+.directory
+.fuse_hidden*
+
+
+# Directories that only contain transitory files from building and testing.
+/doc/
+/share/man/
+/share/doc/
+/test/
+/user_doc/
+
+# File names that can appear in the project root that represent artifacts from
+# building and testing.
+/FISH-BUILD-VERSION-FILE
+/command_list.txt
+/command_list_toc.txt
+/compile_commands.json
+/doc.h
+/fish
+/fish.pc
+/fish_indent
+/fish_key_reader
+/fish_tests
+/lexicon.txt
+/lexicon_filter
+/toc.txt
+/version
+fish-build-version-witness.txt
+__pycache__
+
+# File names that can appear below the project root that represent artifacts
+# from building and testing.
+/doc_src/commands.hdr
+/doc_src/index.hdr
+/po/*.gmo
+/share/__fish_build_paths.fish
+/share/pkgconfig
+/tests/*.tmp.*
+
+# xcode
+## Build generated
+*.moved-aside
+*.xccheckout
+*.xcscmblueprin
+.vscode
+/DerivedData/
+/build/
+/tags
+xcuserdata/
 
-Makefile
-autom4te.cache/
-build/
-command_list.txt
-confdefs.h
-config.h
-config.h.in
-config.log
-config.status
-configure
-doc/
-doc.h
-doc_src/commands.hdr
-doc_src/index.hdr
-po/*.gmo
-fish
-fish.spec
-fish_indent
-fish_pager
-fish_tests
-fishd
-mimedb
-seq
-set_color
-share/config.fish
-share/man/
-toc.txt
-user_doc/
-xcuserdata
-tests/*tmp.*
-tests/foo.txt
-FISH-BUILD-VERSION-FILE
-version

.oclint

@@ -0,0 +1,95 @@
+rules:
+rule-configurations:
+    #
+    # This is the default value (as of the time I wrote this) but I'm making
+    # it explicit since it needs to agree with the value used by clang-format.
+    # Thus, if we ever change the fish style to allow longer or shorter lines
+    # this should be changed (as well as the corresponding .clang-format file).
+    #
+    - key: LONG_LINE
+      value: 100
+    #
+    # The default limit for the length of variable names is 20. Long names are
+    # problematic but twenty chars results in way too many errors. So increase
+    # the limit to something more reasonable.
+    #
+    - key: LONG_VARIABLE_NAME
+      value: 30
+    #
+    # This allows us to avoid peppering our code with inline comments such as
+    #
+    #   scoped_lock locker(m_lock);  //!OCLINT(side-effect)
+    #
+    # Specifically, this config key tells oclint that the named classes have
+    # RAII behavior so the local vars are actually used.
+    #
+    - key: RAII_CUSTOM_CLASSES
+      value: scoped_lock scoped_buffer_t builtin_commandline_scoped_transient_t scoped_push
+
+    # We're slightly more persmissive regarding the total number of lines in a
+    # function. Default is 50.
+    - key: LONG_METHOD
+      value: 60
+
+    # We're slightly more persmissive regarding the number of non-comment
+    # lines in a function. Default is 30.
+    - key: NCSS_METHOD
+      value: 40
+
+    # We're willing to allow slighly more linearly independent paths through a
+    # function. Most of our code has a lot of `switch` blocks or consecutive
+    # `if` tests that are straightforward to interpret but which increase this
+    # metric. Default is 10.
+    - key: CYCLOMATIC_COMPLEXITY
+      value: 14
+
+    # We're willing to allow slighly more execution paths through a function.
+    # Default is 200.
+    - key: NPATH_COMPLEXITY
+      value: 300
+
+disable-rules:
+    #
+    # A few instances of "useless parentheses" errors are meaningful. Mostly
+    # in the context of the `return` statement. Unfortunately the vast
+    # majority would result in removing parentheses that decreases
+    # readability. So we're going to ignore this warning and rely on humans to
+    # notice when the parentheses are truly not needed.
+    #
+    # Also, some macro expansions, such as FD_SET(), trigger this warning and
+    # we don't want to suppress each of those individually.
+    #
+    - UselessParentheses
+    #
+    # OCLint wants variable names to be at least three characters in length.
+    # Which would be fine if it supported a reasonable set of exceptions
+    # (e.g., "i", "j", "k") and allowed adding additional exceptions to match
+    # conventions employed by a project. Since it doesn't, and thus generates
+    # a lot of really annoying warnings, we're going to disable this rule.
+    #
+    - ShortVariableName
+    #
+    # This rule flags perfectly reasonable conditions like `if (!some_condition)`
+    # and is therefore just noise. Disable this rule.
+    #
+    - InvertedLogic
+    #
+    # The idea behind the "double negative" rule is sound since constructs
+    # like "!!(var & flag)" should be written as "static_cast<bool>(var &
+    # flag)". Unfortunately this rule has way too many false positives;
+    # especially in the context of assert statements. So disable this rule.
+    #
+    - DoubleNegative
+    #
+    # Avoiding bitwise operators in a conditional is a good idea with one
+    # exception: testing whether a bit flag is set. Which happens to be the
+    # only time you'll see something like `if (j->flags & JOB_CONSTRUCTED)`
+    # in fish source.
+    #
+    - BitwiseOperatorInConditional
+    #
+    # I don't think I've ever seen a case where assigning a value to a
+    # parameter inside the function body was unclear, let along dangerous or
+    # an error. This rule is therefore just noise. Disable this rule.
+    #
+    - ParameterReassignment

BSDmakefile

@@ -0,0 +1,55 @@
+# This is a very basic `make` wrapper around the CMake build toolchain.
+#
+# Supported arguments:
+#   PREFIX: sets the installation prefix
+#   GENERATOR: explicitly specifies the CMake generator to use
+
+# By default, bmake will try to cd into ./obj before anything else. Don't do that.
+.OBJDIR: ./
+
+CMAKE?=cmake
+
+# Before anything else, test for CMake, which is the only requirement to be able to run
+# this Makefile CMake will perform the remaining dependency tests on its own.
+.BEGIN:
+	@which $(CMAKE) >/dev/null 2>/dev/null || \
+		(echo 'Please install CMake and then re-run the `make` command!' 1>&2 && false)
+
+# Prefer to use ninja, if it is installed
+_GENERATOR!=which ninja 2>/dev/null >/dev/null && echo Ninja || echo "Unix Makefiles"
+GENERATOR?=$(_GENERATOR)
+
+.if $(GENERATOR) == "Ninja"
+BUILDFILE=build.ninja
+.else
+BUILDFILE=Makefile
+.endif
+
+PREFIX?=/usr/local
+
+.PHONY: build/fish
+build/fish: build/$(BUILDFILE)
+	$(CMAKE) --build build
+
+# Don't split the mkdir into its own rule because that would cause CMake to regenerate the build 
+# files after each build (because it adds the mdate of the build directory into the out-of-date
+# calculation tree). GNUmake supports order-only dependencies, BSDmake does not seem to.
+build/$(BUILDFILE):
+	mkdir -p build
+	cd build; $(CMAKE) .. -G "$(GENERATOR)" -DCMAKE_INSTALL_PREFIX="$(PREFIX)" -DCMAKE_EXPORT_COMPILE_COMMANDS=1
+
+.PHONY: install
+install: build/fish
+	$(CMAKE) --build build --target install
+
+.PHONY: clean
+clean:
+	rm -rf build
+
+.PHONY: test
+test: build/fish
+	$(CMAKE) --build build --target test
+
+.PHONY: run
+run: build/fish
+	build/fish

CHANGELOG

@@ -1,3 +0,0 @@
-24-01-2012 Jan Kanis
-  * Added a changelog file
-  * removed unescaping if the 'commandline' builtin is called without the -o (tokenise) flag

CMakeLists.txt

@@ -0,0 +1,243 @@
+cmake_minimum_required(VERSION 3.2)
+
+if(POLICY CMP0066)
+  cmake_policy(SET CMP0066 OLD)
+endif()
+if(POLICY CMP0067)
+  cmake_policy(SET CMP0067 NEW)
+endif()
+
+include(cmake/Mac.cmake)
+
+project(fish)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+# We are C++11.
+set(CMAKE_CXX_STANDARD 11)
+set(DEFAULT_BUILD_TYPE "RelWithDebInfo")
+
+# Use the default flags (#6296) but remove -DNDEBUG so that asserts remain enabled.
+string(REPLACE "-DNDEBUG" ""
+  CMAKE_CXX_FLAGS_RELWITHDEBINFO
+  "${CMAKE_CXX_FLAGS_RELWITHDEBINFO}")
+
+string(REPLACE "-DNDEBUG" ""
+  CMAKE_CXX_FLAGS_RELEASE
+  "${CMAKE_CXX_FLAGS_RELEASE}")
+
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+    message(STATUS "Setting build type to default '${DEFAULT_BUILD_TYPE}'")
+    set(CMAKE_BUILD_TYPE "${DEFAULT_BUILD_TYPE}")
+endif()
+
+# Force colored warnings in Ninja's output, if the compiler has -fdiagnostics-color support.
+# Rationale in https://github.com/ninja-build/ninja/issues/814
+if (CMAKE_GENERATOR STREQUAL "Ninja" AND
+    ((CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.9) OR
+     (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.5) OR
+     (CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang" AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 6.0)))
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fdiagnostics-color=always")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fdiagnostics-color=always")
+endif()
+
+# Enable a whole bunch of warnings, but turn off:
+# - comment because we use a bunch of those, and they're not really all that harmful.
+# - address, because that occurs for our mkostemp check (weak-linking requires us to compare `&mkostemp == nullptr`).
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra \
+-Wno-comment \
+-Wno-address \
+")
+
+# Disable exception handling.
+add_compile_options(-fno-exceptions)
+
+# Prefer lld or the gold linker because they don't emit useless warnings about sys_nerr and
+# _sys_errlist. They're also faster (significantly so in the case of lld).
+if (UNIX)
+    execute_process(COMMAND ${CMAKE_C_COMPILER} -fuse-ld=lld -Wl,--version
+        ERROR_QUIET OUTPUT_VARIABLE LD_VERSION)
+    if ("${LD_VERSION}" MATCHES "LLD ")
+        set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fuse-ld=lld")
+    elseif (NOT APPLE)
+        execute_process(COMMAND ${CMAKE_C_COMPILER} -fuse-ld=gold -Wl,--version
+            ERROR_QUIET OUTPUT_VARIABLE LD_VERSION)
+        if ("${LD_VERSION}" MATCHES "GNU gold")
+            set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fuse-ld=gold")
+        endif()
+    endif()
+endif()
+
+# Hide the CMake Rules directories in Xcode projects.
+source_group("CMake Rules" REGULAR_EXPRESSION "^$")
+
+# Put source and header files at top level under targets.
+source_group("Source Files" REGULAR_EXPRESSION "^$")
+source_group("Header Files" REGULAR_EXPRESSION "^$")
+source_group("Builtins" REGULAR_EXPRESSION "builtin_.*")
+
+# Support folders.
+set_property(GLOBAL PROPERTY USE_FOLDERS ON)
+
+# Work around issue where archive-built libs go in the wrong place.
+set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR})
+
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake")
+
+if(CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR)
+  set(FISH_IN_TREE_BUILD TRUE)
+else()
+  set(FISH_IN_TREE_BUILD FALSE)
+endif()
+
+# NetBSD does weird things with finding libraries,
+# making the tests fail by failing to find pcre.
+#
+# Keep the rpath used to build.
+if(CMAKE_SYSTEM_NAME STREQUAL NetBSD)
+  set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
+endif()
+
+# All objects that the system needs to build fish, except fish.cpp
+set(FISH_SRCS
+    src/ast.cpp src/autoload.cpp src/builtin.cpp src/builtin_argparse.cpp
+    src/builtin_bg.cpp src/builtin_bind.cpp src/builtin_block.cpp
+    src/builtin_builtin.cpp src/builtin_cd.cpp src/builtin_command.cpp
+    src/builtin_commandline.cpp src/builtin_complete.cpp src/builtin_contains.cpp
+    src/builtin_disown.cpp src/builtin_echo.cpp src/builtin_emit.cpp
+    src/builtin_eval.cpp src/builtin_exit.cpp src/builtin_fg.cpp
+    src/builtin_function.cpp src/builtin_functions.cpp src/builtin_history.cpp
+    src/builtin_jobs.cpp src/builtin_math.cpp src/builtin_printf.cpp
+    src/builtin_pwd.cpp src/builtin_random.cpp src/builtin_read.cpp
+    src/builtin_realpath.cpp src/builtin_return.cpp src/builtin_set.cpp
+    src/builtin_set_color.cpp src/builtin_source.cpp src/builtin_status.cpp
+    src/builtin_string.cpp src/builtin_test.cpp src/builtin_type.cpp src/builtin_ulimit.cpp
+    src/builtin_wait.cpp src/color.cpp src/common.cpp src/complete.cpp src/env.cpp
+    src/env_dispatch.cpp src/env_universal_common.cpp src/event.cpp src/exec.cpp
+    src/expand.cpp src/fallback.cpp src/fd_monitor.cpp src/fish_version.cpp
+    src/flog.cpp src/function.cpp src/future_feature_flags.cpp src/highlight.cpp
+    src/history.cpp src/history_file.cpp src/input.cpp src/input_common.cpp
+    src/intern.cpp src/io.cpp src/iothread.cpp src/job_group.cpp src/kill.cpp
+    src/null_terminated_array.cpp src/operation_context.cpp src/output.cpp
+    src/pager.cpp src/parse_execution.cpp src/parse_tree.cpp src/parse_util.cpp
+    src/parser.cpp src/parser_keywords.cpp src/path.cpp src/postfork.cpp
+    src/proc.cpp src/reader.cpp src/redirection.cpp src/sanity.cpp src/screen.cpp
+    src/signal.cpp src/termsize.cpp src/timer.cpp src/tinyexpr.cpp
+    src/tokenizer.cpp src/topic_monitor.cpp src/trace.cpp src/utf8.cpp src/util.cpp
+    src/wcstringutil.cpp src/wgetopt.cpp src/wildcard.cpp src/wutil.cpp src/fds.cpp
+)
+
+# Header files are just globbed.
+file(GLOB FISH_HEADERS src/*.h)
+
+# Set up config.h
+include(cmake/ConfigureChecks.cmake)
+include(cmake/gettext.cmake)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/config_cmake.h.in
+               ${CMAKE_CURRENT_BINARY_DIR}/config.h)
+include_directories(${CMAKE_CURRENT_BINARY_DIR})
+
+# Set up standard directories.
+include(GNUInstallDirs)
+add_definitions(-D_UNICODE=1
+                -DLOCALEDIR="${CMAKE_INSTALL_FULL_LOCALEDIR}"
+                -DPREFIX=L"${CMAKE_INSTALL_PREFIX}"
+                -DDATADIR=L"${CMAKE_INSTALL_FULL_DATADIR}"
+                -DSYSCONFDIR=L"${CMAKE_INSTALL_FULL_SYSCONFDIR}"
+                -DBINDIR=L"${CMAKE_INSTALL_FULL_BINDIR}"
+                -DDOCDIR=L"${CMAKE_INSTALL_FULL_DOCDIR}")
+
+# Set up the machinery around FISH-BUILD-VERSION-FILE
+# This defines the FBVF variable.
+include(Version)
+
+# Let fish pick up when we're running out of the build directory without installing
+get_filename_component(REAL_CMAKE_BINARY_DIR "${CMAKE_BINARY_DIR}" REALPATH)
+get_filename_component(REAL_CMAKE_SOURCE_DIR "${CMAKE_SOURCE_DIR}" REALPATH)
+add_definitions(-DCMAKE_BINARY_DIR="${REAL_CMAKE_BINARY_DIR}")
+add_definitions(-DCMAKE_SOURCE_DIR="${REAL_CMAKE_SOURCE_DIR}")
+
+# Teach fish_version.o to rebuild when FBVF changes.
+# The standard C++ include detection machinery misses this.
+set_source_files_properties(src/fish_version.cpp
+                            PROPERTIES OBJECT_DEPENDS
+                            ${CMAKE_CURRENT_BINARY_DIR}/${FBVF})
+
+# Enable thread-safe errno on Solaris (#5611)
+add_definitions(-D_REENTRANT)
+
+# Set up PCRE2
+include(cmake/PCRE2.cmake)
+
+# Define a function to link dependencies.
+function(FISH_LINK_DEPS_AND_SIGN target)
+  target_link_libraries(${target} fishlib)
+  codesign_on_mac(${target})
+endfunction(FISH_LINK_DEPS_AND_SIGN)
+
+# Define libfish.a.
+add_library(fishlib STATIC ${FISH_SRCS})
+target_sources(fishlib PRIVATE ${FISH_HEADERS})
+target_link_libraries(fishlib
+  ${CURSES_LIBRARY} ${CURSES_EXTRA_LIBRARY} Threads::Threads ${CMAKE_DL_LIBS}
+  ${PCRE2_LIB} ${Intl_LIBRARIES} ${ATOMIC_LIBRARY})
+target_include_directories(fishlib PRIVATE
+  ${CURSES_INCLUDE_DIRS})
+
+# Define fish.
+add_executable(fish src/fish.cpp)
+fish_link_deps_and_sign(fish)
+
+# Define fish_indent.
+add_executable(fish_indent
+               src/fish_indent.cpp src/print_help.cpp)
+fish_link_deps_and_sign(fish_indent)
+
+# Define fish_key_reader.
+add_executable(fish_key_reader
+               src/fish_key_reader.cpp src/print_help.cpp)
+fish_link_deps_and_sign(fish_key_reader)
+
+# Set up the docs.
+include(cmake/Docs.cmake)
+
+# A helper for running tests.
+add_executable(fish_test_helper src/fish_test_helper.cpp)
+
+# Set up tests.
+include(cmake/Tests.cmake)
+
+# Benchmarking support.
+include(cmake/Benchmark.cmake)
+
+# Set up install.
+include(cmake/Install.cmake)
+
+# Mac app.
+include(cmake/MacApp.cmake)
+
+# ThreadSanitizer likes to muck with signal handlers, which interferes
+# with fish_test_helper printing the ignored signal mask.
+# Ensure fish_test_helper does not use TSan.
+# Note the environment var is CXXFLAGS, but the CMake var is CMAKE_CXX_FLAGS.
+if (CMAKE_CXX_FLAGS MATCHES ".*-fsanitize=thread.*")
+  target_compile_options(fish_test_helper PRIVATE "-fno-sanitize=all")
+  target_link_libraries(fish_test_helper "-fno-sanitize=all")
+endif()
+
+# Lint targets
+# This could be implemented as target properties, but the script has the useful feature of only
+# checking the currently-staged commands
+# The generator expressions below rebuild the command line for the fishlib targets
+# CMake does not support the "iquote" flag - https://gitlab.kitware.com/cmake/cmake/issues/15491
+set(LINT_ARGS "-D$<JOIN:$<TARGET_PROPERTY:fishlib,COMPILE_DEFINITIONS>, -D>" "-I$<JOIN:$<TARGET_PROPERTY:fishlib,INCLUDE_DIRECTORIES>, -I>")
+add_custom_target(lint
+    COMMAND build_tools/lint.fish -p ${CMAKE_BINARY_DIR} -- ${LINT_ARGS}
+    WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
+)
+add_custom_target(lint-all
+    COMMAND build_tools/lint.fish --all -p ${CMAKE_BINARY_DIR} -- ${LINT_ARGS}
+    WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
+)
+
+include(FeatureSummary)
+feature_summary(WHAT ALL)

CODE_OF_CONDUCT.md

@@ -0,0 +1,129 @@
+
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+We as members, contributors, and leaders pledge to make participation in our
+community a harassment-free experience for everyone, regardless of age, body
+size, visible or invisible disability, ethnicity, sex characteristics, gender
+identity and expression, level of experience, education, socio-economic status,
+nationality, personal appearance, race, religion, or sexual identity
+and orientation.
+
+We pledge to act and interact in ways that contribute to an open, welcoming,
+diverse, inclusive, and healthy community.
+
+## Our Standards
+
+Examples of behavior that contributes to a positive environment for our
+community include:
+
+* Demonstrating empathy and kindness toward other people
+* Being respectful of differing opinions, viewpoints, and experiences
+* Giving and gracefully accepting constructive feedback
+* Accepting responsibility and apologizing to those affected by our mistakes,
+  and learning from the experience
+* Focusing on what is best not just for us as individuals, but for the
+  overall community
+
+Examples of unacceptable behavior include:
+
+* The use of sexualized language or imagery, and sexual attention or
+  advances of any kind
+* Trolling, insulting or derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or email
+  address, without their explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Enforcement Responsibilities
+
+Community leaders are responsible for clarifying and enforcing our standards of
+acceptable behavior and will take appropriate and fair corrective action in
+response to any behavior that they deem inappropriate, threatening, offensive,
+or harmful.
+
+Community leaders have the right and responsibility to remove, edit, or reject
+comments, commits, code, wiki edits, issues, and other contributions that are
+not aligned to this Code of Conduct, and will communicate reasons for moderation
+decisions when appropriate.
+
+## Scope
+
+This Code of Conduct applies within all community spaces, and also applies when
+an individual is officially representing the community in public spaces.
+Examples of representing our community include using an official e-mail address,
+posting via an official social media account, or acting as an appointed
+representative at an online or offline event.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported to the community leaders.
+All complaints will be reviewed and investigated promptly and fairly.
+
+All community leaders are obligated to respect the privacy and security of the
+reporter of any incident.
+
+## Enforcement Guidelines
+
+Community leaders will follow these Community Impact Guidelines in determining
+the consequences for any action they deem in violation of this Code of Conduct:
+
+### 1. Correction
+
+**Community Impact**: Use of inappropriate language or other behavior deemed
+unprofessional or unwelcome in the community.
+
+**Consequence**: A private, written warning from community leaders, providing
+clarity around the nature of the violation and an explanation of why the
+behavior was inappropriate. A public apology may be requested.
+
+### 2. Warning
+
+**Community Impact**: A violation through a single incident or series
+of actions.
+
+**Consequence**: A warning with consequences for continued behavior. No
+interaction with the people involved, including unsolicited interaction with
+those enforcing the Code of Conduct, for a specified period of time. This
+includes avoiding interactions in community spaces as well as external channels
+like social media. Violating these terms may lead to a temporary or
+permanent ban.
+
+### 3. Temporary Ban
+
+**Community Impact**: A serious violation of community standards, including
+sustained inappropriate behavior.
+
+**Consequence**: A temporary ban from any sort of interaction or public
+communication with the community for a specified period of time. No public or
+private interaction with the people involved, including unsolicited interaction
+with those enforcing the Code of Conduct, is allowed during this period.
+Violating these terms may lead to a permanent ban.
+
+### 4. Permanent Ban
+
+**Community Impact**: Demonstrating a pattern of violation of community
+standards, including sustained inappropriate behavior,  harassment of an
+individual, or aggression toward or disparagement of classes of individuals.
+
+**Consequence**: A permanent ban from any sort of public interaction within
+the community.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage],
+version 2.0, available at
+https://www.contributor-covenant.org/version/2/0/code_of_conduct.html.
+
+Community Impact Guidelines were inspired by [Mozilla's code of conduct
+enforcement ladder](https://github.com/mozilla/diversity).
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see the FAQ at
+https://www.contributor-covenant.org/faq. Translations are available at
+https://www.contributor-covenant.org/translations.
+

CONTRIBUTING.md

@@ -1,105 +0,0 @@
-# Style guide
-
-This is style guide for fish contributors. You should use it for any new code
-that you would add to this project and try to format existing code to use this
-style.
-
-## Formatting
-
-1. fish uses the Allman/BSD style of indentation.
-2. Indent with spaces, not tabs.
-3. Use 4 spaces per indent (unless needed like `Makefile`).
-4. Opening curly bracket is on the following line:
-
-        // ✔:
-        struct name
-        {
-          // code
-        };
-
-        void func()
-        {
-          // code
-        }
-
-        if (...)
-        {
-          // code
-        }
-
-        // ✗:
-        void func() {
-          // code
-        }
-
-5. Put space after `if`, `while` and `for` before conditions.
-
-        // ✔:
-        if () {}
-
-        // ✗:
-        if() {}
-
-6. Put spaces before and after operators excluding increment and decrement;
-
-        // ✔:
-        int a = 1 + 2 * 3;
-        a++;
-
-        // ✗:
-        int a=1+2*3;
-        a ++;
-
-7. Never put spaces between function name and parameters list.
-
-        // ✔:
-        func(args);
-
-        // ✗:
-        func (args);
-
-8. Never put spaces after `(` and before `)`.
-9. Always put space after comma and semicolon.
-
-        // ✔:
-        func(arg1, arg2);
-
-        for (int i = 0; i < LENGTH; i++) {}
-
-        // ✗:
-        func(arg1,arg2);
-
-        for (int i = 0;i<LENGTH;i++) {}
-
-## Documentation
-
-Document your code using [Doxygen][dox].
-
-1. Documentation comment should use double star notation or tripple slash:
-
-        // ✔:
-        /// Some var
-        int var;
-
-        /**
-         * Some func
-         */
-        void func();
-
-2. Use slash as tag mark:
-
-        // ✔:
-
-        /**
-         * \param a an integer argument.
-         * \param s a constant character pointer.
-         * \return The results
-         */
-        int foo(int a, const char *s);
-
-## Naming
-
-All names in code should be `small_snake_case`. No Hungarian notation is used.
-Classes and structs names should be followed by `_t`.
-
-[dox]: http://www.stack.nl/~dimitri/doxygen/ "Doxygen homepage"

CONTRIBUTING.rst

@@ -0,0 +1,475 @@
+Guidelines For Developers
+=========================
+
+This document provides guidelines for making changes to the fish-shell
+project. This includes rules for how to format the code, naming
+conventions, et cetera.
+
+In short:
+
+- Be conservative in what you need (``C++11``, few dependencies)
+- Use automated tools to help you (including ``make test``, ``build_tools/style.fish`` and ``make lint``)
+
+General
+-------
+
+Fish uses C++11. Newer C++ features should not be used to make it possible to use on older systems.
+
+It does not use exceptions, they are disabled at build time with ``-fno-exceptions``.
+
+Don't introduce new dependencies unless absolutely necessary, and if you do,
+please make it optional with graceful failure if possible.
+Add any new dependencies to the README.rst under the *Running* and/or *Building* sections.
+
+This also goes for completion scripts and functions - if at all possible, they should only use
+POSIX-compatible invocations of any tools, and no superfluous dependencies.
+
+E.g. some completions deal with JSON data. In those it's preferable to use python to handle it,
+as opposed to ``jq``, because fish already optionally uses python elsewhere. (It also happens to be quite a bit *faster*)
+
+Lint Free Code
+--------------
+
+Automated analysis tools like cppcheck and oclint can point out
+potential bugs or code that is extremely hard to understand. They also
+help ensure the code has a consistent style and that it avoids patterns
+that tend to confuse people.
+
+To make linting the code easy there are two make targets: ``lint`` and
+``lint-all``. The latter does exactly what the name implies. The former
+will lint any modified but not committed ``*.cpp`` files. If there is no
+uncommitted work it will lint the files in the most recent commit.
+
+Fish has custom cppcheck rules in the file ``.cppcheck.rule``. These
+help catch mistakes such as using ``wcwidth()`` rather than
+``fish_wcwidth()``. Please add a new rule if you find similar mistakes
+being made.
+
+Dealing With Lint Warnings
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+You are strongly encouraged to address a lint warning by refactoring the
+code, changing variable names, or whatever action is implied by the
+warning.
+
+Suppressing Lint Warnings
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Once in a while the lint tools emit a false positive warning. For
+example, cppcheck might suggest a memory leak is present when that is
+not the case. To suppress that cppcheck warning you should insert a line
+like the following immediately prior to the line cppcheck warned about:
+
+::
+
+   // cppcheck-suppress memleak // addr not really leaked
+
+The explanatory portion of the suppression comment is optional. For
+other types of warnings replace “memleak” with the value inside the
+parenthesis (e.g., “nullPointerRedundantCheck”) from a warning like the
+following:
+
+::
+
+   [src/complete.cpp:1727]: warning (nullPointerRedundantCheck): Either the condition 'cmd_node' is redundant or there is possible null pointer dereference: cmd_node.
+
+Suppressing oclint warnings is more complicated to describe so I’ll
+refer you to the `OCLint
+HowTo <http://docs.oclint.org/en/latest/howto/suppress.html#annotations>`__
+on the topic.
+
+Ensuring Your Changes Conform to the Style Guides
+-------------------------------------------------
+
+The following sections discuss the specific rules for the style that
+should be used when writing fish code. To ensure your changes conform to
+the style rules you simply need to run
+
+::
+
+   build_tools/style.fish
+
+before committing your change. That will run ``git-clang-format`` to
+rewrite only the lines you’re modifying.
+
+If you’ve already committed your changes that’s okay since it will then
+check the files in the most recent commit. This can be useful after
+you’ve merged another person’s change and want to check that it’s style
+is acceptable. However, in that case it will run ``clang-format`` to
+ensure the entire file, not just the lines modified by the commit,
+conform to the style.
+
+If you want to check the style of the entire code base run
+
+::
+
+   build_tools/style.fish --all
+
+That command will refuse to restyle any files if you have uncommitted
+changes.
+
+Configuring Your Editor for Fish C++ Code
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Vim
+^^^
+
+As of Vim 7.4 it does not recognize triple-slash comments as used by
+Doxygen and the OS X Xcode IDE to flag comments that explain the
+following C symbol. This means the ``gq`` key binding to reformat such
+comments doesn’t behave as expected. You can fix that by adding the
+following to your vimrc:
+
+::
+
+   autocmd Filetype c,cpp setlocal comments^=:///
+
+If you use Vim I recommend the `vim-clang-format
+plugin <https://github.com/rhysd/vim-clang-format>`__ by
+[@rhysd](https://github.com/rhysd).
+
+Emacs
+^^^^^
+
+If you use Emacs: TBD
+
+Configuring Your Editor for Fish Scripts
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+If you use Vim: Install `vim-fish <https://github.com/dag/vim-fish>`__,
+make sure you have syntax and filetype functionality in ``~/.vimrc``:
+
+::
+
+   syntax enable
+   filetype plugin indent on
+
+Then turn on some options for nicer display of fish scripts in
+``~/.vim/ftplugin/fish.vim``:
+
+::
+
+   " Set up :make to use fish for syntax checking.
+   compiler fish
+
+   " Set this to have long lines wrap inside comments.
+   setlocal textwidth=79
+
+   " Enable folding of block structures in fish.
+   setlocal foldmethod=expr
+
+If you use Emacs: Install
+`fish-mode <https://github.com/wwwjfy/emacs-fish>`__ (also available in
+melpa and melpa-stable) and ``(setq-default indent-tabs-mode nil)`` for
+it (via a hook or in ``use-package``\ s “:init” block). It can also be
+made to run fish_indent via e.g.
+
+.. code:: elisp
+
+   (add-hook 'fish-mode-hook (lambda ()
+       (add-hook 'before-save-hook 'fish_indent-before-save)))
+
+Suppressing Reformatting of C++ Code
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+You can tell ``clang-format`` to not reformat a block by enclosing it in
+comments like this:
+
+::
+
+   // clang-format off
+   code to ignore
+   // clang-format on
+
+Fish Script Style Guide
+-----------------------
+
+1. All fish scripts, such as those in the *share/functions* and *tests*
+   directories, should be formatted using the ``fish_indent`` command.
+
+2. Function names should be in all lowercase with words separated by
+   underscores. Private functions should begin with an underscore. The
+   first word should be ``fish`` if the function is unique to fish.
+
+3. The first word of global variable names should generally be ``fish``
+   for public vars or ``_fish`` for private vars to minimize the
+   possibility of name clashes with user defined vars.
+
+C++ Style Guide
+---------------
+
+1. The `Google C++ Style
+   Guide <https://google.github.io/styleguide/cppguide.html>`__ forms
+   the basis of the fish C++ style guide. There are two major deviations
+   for the fish project. First, a four, rather than two, space indent.
+   Second, line lengths up to 100, rather than 80, characters.
+
+2. The ``clang-format`` command is authoritative with respect to
+   indentation, whitespace around operators, etc.
+
+3. All names in code should be ``small_snake_case``. No Hungarian
+   notation is used. The names for classes and structs should be
+   followed by ``_t``.
+
+4. Always attach braces to the surrounding context.
+
+5. Indent with spaces, not tabs and use four spaces per indent.
+
+6. Document the purpose of a function or class with doxygen-style
+   comment blocks. e.g.:
+
+::
+
+   /**
+    * Sum numbers in a vector.
+    *
+    * @param values Container whose values are summed.
+    * @return sum of `values`, or 0.0 if `values` is empty.
+    */
+   double sum(std::vector<double> & const values) {
+       ...
+   }
+    */
+
+or
+
+::
+
+   /// brief description of somefunction()
+   void somefunction() {
+
+Testing
+-------
+
+The source code for fish includes a large collection of tests. If you
+are making any changes to fish, running these tests is a good way to make
+sure the behaviour remains consistent and regressions are not
+introduced. Even if you don’t run the tests on your machine, they will
+still be run via Github Actions.
+
+You are strongly encouraged to add tests when changing the functionality
+of fish, especially if you are fixing a bug to help ensure there are no
+regressions in the future (i.e., we don’t reintroduce the bug).
+
+The tests can be found in three places:
+
+- src/fish_tests.cpp for tests to the core C++ code
+- tests/checks for script tests, run by `littlecheck <https://github.com/ridiculousfish/littlecheck>`__
+- tests/pexpects for interactive tests using `pexpect <https://pexpect.readthedocs.io/en/stable/>`__
+
+When in doubt, the bulk of the tests should be added as a littlecheck test in tests/checks, as they are the easiest to modify and run, and much faster and more dependable than pexpect tests. The syntax is fairly self-explanatory. It's a fish script with the expected output in ``# CHECK:`` or ``# CHECKERR:`` (for stderr) comments.
+
+fish_tests.cpp is mostly useful for unit tests - if you wish to test that a function does the correct thing for given input, use it.
+
+The pexpects are written in python and can simulate input and output to/from a terminal, so they are needed for anything that needs actual interactivity. The runner is in build_tools/pexpect_helper.py, in case you need to modify something there.
+
+Local testing
+~~~~~~~~~~~~~
+
+The tests can be run on your local computer on all operating systems.
+
+::
+
+   cmake path/to/fish-shell
+   make test
+
+Git hooks
+~~~~~~~~~
+
+Since developers sometimes forget to run the tests, it can be helpful to
+use git hooks (see githooks(5)) to automate it.
+
+One possibility is a pre-push hook script like this one:
+
+.. code:: sh
+
+   #!/bin/sh
+   #### A pre-push hook for the fish-shell project
+   # This will run the tests when a push to master is detected, and will stop that if the tests fail
+   # Save this as .git/hooks/pre-push and make it executable
+
+   protected_branch='master'
+
+   # Git gives us lines like "refs/heads/frombranch SOMESHA1 refs/heads/tobranch SOMESHA1"
+   # We're only interested in the branches
+   while read from _ to _; do
+       if [ "x$to" = "xrefs/heads/$protected_branch" ]; then
+           isprotected=1
+       fi
+   done
+   if [ "x$isprotected" = x1 ]; then
+       echo "Running tests before push to master"
+       make test
+       RESULT=$?
+       if [ $RESULT -ne 0 ]; then
+           echo "Tests failed for a push to master, we can't let you do that" >&2
+           exit 1
+       fi
+   fi
+   exit 0
+
+This will check if the push is to the master branch and, if it is, only
+allow the push if running ``make test`` succeeds. In some circumstances
+it may be advisable to circumvent this check with
+``git push --no-verify``, but usually that isn’t necessary.
+
+To install the hook, place the code in a new file
+``.git/hooks/pre-push`` and make it executable.
+
+Coverity Scan
+~~~~~~~~~~~~~
+
+We use Coverity’s static analysis tool which offers free access to open
+source projects. While access to the tool itself is restricted,
+fish-shell organization members should know that they can login
+`here <https://scan.coverity.com/projects/fish-shell-fish-shell?tab=overview>`__
+with their GitHub account. Currently, tests are triggered upon merging
+the ``master`` branch into ``coverity_scan_master``. Even if you are not
+a fish developer, you can keep an eye on our statistics there.
+
+Installing the Required Tools
+-----------------------------
+
+Installing the Linting Tools
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+To install the lint checkers on Mac OS X using Homebrew:
+
+::
+
+   brew tap oclint/formulae
+   brew install oclint
+   brew install cppcheck
+
+To install the lint checkers on Debian-based Linux distributions:
+
+::
+
+   sudo apt-get install clang
+   sudo apt-get install oclint
+   sudo apt-get install cppcheck
+
+Installing the Formatting Tools
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Mac OS X:
+
+::
+
+   brew install clang-format
+
+Debian-based:
+
+::
+
+   sudo apt-get install clang-format
+
+Message Translations
+--------------------
+
+Fish uses the GNU gettext library to translate messages from English to
+other languages.
+
+All non-debug messages output for user consumption should be marked for
+translation. In C++, this requires the use of the ``_`` (underscore)
+macro:
+
+::
+
+   streams.out.append_format(_(L"%ls: There are no jobs\n"), argv[0]);
+
+All messages in fish script must be enclosed in single or double quote
+characters. They must also be translated via a subcommand. This means
+that the following are **not** valid:
+
+::
+
+   echo (_ hello)
+   _ "goodbye"
+
+Above should be written like this instead:
+
+::
+
+   echo (_ "hello")
+   echo (_ "goodbye")
+
+Note that you can use either single or double quotes to enclose the
+message to be translated. You can also optionally include spaces after
+the opening parentheses and once again before the closing parentheses.
+
+Creating and updating translations requires the Gettext tools, including
+``xgettext``, ``msgfmt`` and ``msgmerge``. Translation sources are
+stored in the ``po`` directory, named ``LANG.po``, where ``LANG`` is the
+two letter ISO 639-1 language code of the target language (eg ``de`` for
+German).
+
+To create a new translation, for example for German:
+
+* generate a ``messages.pot`` file by running ``build_tools/fish_xgettext.fish`` from
+  the source tree
+* copy ``messages.pot`` to ``po/LANG.po``
+
+To update a translation:
+
+* generate a ``messages.pot`` file by running
+  ``build_tools/fish_xgettext.fish`` from the source tree
+
+* update the existing translation by running
+  ``msgmerge --update --no-fuzzy-matching po/LANG.po messages.pot``
+
+Many tools are available for editing translation files, including
+command-line and graphical user interface programs.
+
+Be cautious about blindly updating an existing translation file. Trivial
+changes to an existing message (eg changing the punctuation) will cause
+existing translations to be removed, since the tools do literal string
+matching. Therefore, in general, you need to carefully review any
+recommended deletions.
+
+Read the `translations
+wiki <https://github.com/fish-shell/fish-shell/wiki/Translations>`__ for
+more information.
+
+Versioning
+----------
+
+The fish version is constructed by the *build_tools/git_version_gen.sh*
+script. For developers the version is the branch name plus the output of
+``git describe --always --dirty``. Normally the main part of the version
+will be the closest annotated tag. Which itself is usually the most
+recent release number (e.g., ``2.6.0``).
+
+Include What You Use
+--------------------
+
+You should not depend on symbols being visible to a ``*.cpp`` module
+from ``#include`` statements inside another header file. In other words
+if your module does ``#include "common.h"`` and that header does
+``#include "signal.h"`` your module should not assume the sub-include is
+present. It should instead directly ``#include "signal.h"`` if it needs
+any symbol from that header. That makes the actual dependencies much
+clearer. It also makes it easy to modify the headers included by a
+specific header file without having to worry that will break any module
+(or header) that includes a particular header.
+
+To help enforce this rule the ``make lint`` (and ``make lint-all``)
+command will run the
+`include-what-you-use <https://include-what-you-use.org/>`__ tool. You
+can find the IWYU project on
+`github <https://github.com/include-what-you-use/include-what-you-use>`__.
+
+To install the tool on OS X you’ll need to add a
+`formula <https://github.com/jasonmp85/homebrew-iwyu>`__ then install
+it:
+
+::
+
+   brew tap jasonmp85/iwyu
+   brew install iwyu
+
+On Ubuntu you can install it via ``apt-get``:
+
+::
+
+   sudo apt-get install iwyu

COPYING

@@ -0,0 +1,20 @@
+Fish is a smart and user-friendly command line shell.
+
+Copyright (C) 2005-2009 Axel Liljencrantz
+Copyright (C) 2009-2020 fish-shell contributors
+
+fish is free software.
+
+Most of fish is licensed under the GNU General Public License version 2, and
+you can redistribute it and/or modify it under the terms of the GNU GPL as
+published by the Free Software Foundation.
+
+fish also includes software licensed under the GNU Lesser General Public
+License version 2, the OpenBSD license, the ISC license, and the NetBSD license.
+
+Full licensing information is contained in doc_src/license.rst.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+more details.

Dockerfile

@@ -0,0 +1,19 @@
+FROM centos:latest
+
+# Build dependency
+RUN yum update -y &&\
+  yum install -y epel-release &&\
+  yum install -y clang cmake3 gcc-c++ make ncurses-devel &&\
+  yum clean all
+
+# Test dependency
+RUN yum install -y expect vim-common
+
+ADD . /src
+WORKDIR /src
+
+# Build fish
+RUN cmake3 . &&\
+  make &&\
+  make install
+

Doxyfile.user

@@ -1,161 +0,0 @@
-PROJECT_NAME           = fish
-PROJECT_NUMBER         = 1
-OUTPUT_DIRECTORY       = user_doc
-CREATE_SUBDIRS         = NO
-OUTPUT_LANGUAGE        = English
-USE_WINDOWS_ENCODING   = NO
-BRIEF_MEMBER_DESC      = YES
-REPEAT_BRIEF           = YES
-ABBREVIATE_BRIEF       = YES
-ALWAYS_DETAILED_SEC    = NO
-INLINE_INHERITED_MEMB  = NO
-FULL_PATH_NAMES        = YES
-STRIP_FROM_PATH        =
-STRIP_FROM_INC_PATH    =
-SHORT_NAMES            = NO
-JAVADOC_AUTOBRIEF      = YES
-MULTILINE_CPP_IS_BRIEF = NO
-DETAILS_AT_TOP         = NO
-INHERIT_DOCS           = YES
-DISTRIBUTE_GROUP_DOC   = NO
-TAB_SIZE               = 8
-ALIASES                =
-OPTIMIZE_OUTPUT_FOR_C  = YES
-OPTIMIZE_OUTPUT_JAVA   = NO
-SUBGROUPING            = YES
-EXTRACT_ALL            = NO
-EXTRACT_PRIVATE        = NO
-EXTRACT_STATIC         = YES
-EXTRACT_LOCAL_CLASSES  = YES
-EXTRACT_LOCAL_METHODS  = NO
-HIDE_UNDOC_MEMBERS     = NO
-HIDE_UNDOC_CLASSES     = NO
-HIDE_FRIEND_COMPOUNDS  = NO
-HIDE_IN_BODY_DOCS      = NO
-INTERNAL_DOCS          = NO
-CASE_SENSE_NAMES       = YES
-HIDE_SCOPE_NAMES       = NO
-SHOW_INCLUDE_FILES     = YES
-INLINE_INFO            = YES
-SORT_MEMBER_DOCS       = YES
-SORT_BRIEF_DOCS        = NO
-SORT_BY_SCOPE_NAME     = NO
-GENERATE_TODOLIST      = YES
-GENERATE_TESTLIST      = YES
-GENERATE_BUGLIST       = YES
-GENERATE_DEPRECATEDLIST= YES
-ENABLED_SECTIONS       =
-MAX_INITIALIZER_LINES  = 30
-SHOW_USED_FILES        = YES
-SHOW_DIRECTORIES       = YES
-QUIET                  = NO
-WARNINGS               = YES
-WARN_IF_UNDOCUMENTED   = YES
-WARN_IF_DOC_ERROR      = YES
-WARN_FORMAT            = "$file:$line: $text"
-WARN_LOGFILE           =
-INPUT                  =
-FILE_PATTERNS          =  doc.h
-RECURSIVE              = NO
-EXCLUDE                =
-EXCLUDE_SYMLINKS       = NO
-EXCLUDE_PATTERNS       =
-EXAMPLE_PATH           =
-EXAMPLE_PATTERNS       =
-EXAMPLE_RECURSIVE      = NO
-IMAGE_PATH             =
-INPUT_FILTER           =
-FILTER_PATTERNS        =
-FILTER_SOURCE_FILES    = NO
-SOURCE_BROWSER         = NO
-INLINE_SOURCES         = NO
-STRIP_CODE_COMMENTS    = YES
-REFERENCED_BY_RELATION = YES
-REFERENCES_RELATION    = YES
-VERBATIM_HEADERS       = YES
-ALPHABETICAL_INDEX     = NO
-COLS_IN_ALPHA_INDEX    = 5
-IGNORE_PREFIX          =
-GENERATE_HTML          = YES
-HTML_OUTPUT            = html
-HTML_FILE_EXTENSION    = .html
-HTML_HEADER            = user_doc.head.html
-HTML_FOOTER            =
-HTML_STYLESHEET        =
-HTML_ALIGN_MEMBERS     = YES
-GENERATE_HTMLHELP      = NO
-CHM_FILE               =
-HHC_LOCATION           =
-GENERATE_CHI           = NO
-BINARY_TOC             = NO
-TOC_EXPAND             = NO
-DISABLE_INDEX          = YES
-ENUM_VALUES_PER_LINE   = 4
-GENERATE_TREEVIEW      = NO
-TREEVIEW_WIDTH         = 250
-GENERATE_LATEX         = NO
-LATEX_OUTPUT           = latex
-LATEX_CMD_NAME         = latex
-MAKEINDEX_CMD_NAME     = makeindex
-COMPACT_LATEX          = NO
-PAPER_TYPE             = a4wide
-EXTRA_PACKAGES         =
-LATEX_HEADER           =
-PDF_HYPERLINKS         = YES
-USE_PDFLATEX           = YES
-LATEX_BATCHMODE        = NO
-LATEX_HIDE_INDICES     = NO
-GENERATE_RTF           = NO
-RTF_OUTPUT             = rtf
-COMPACT_RTF            = NO
-RTF_HYPERLINKS         = NO
-RTF_STYLESHEET_FILE    =
-RTF_EXTENSIONS_FILE    =
-GENERATE_MAN           = NO
-MAN_OUTPUT             = man
-MAN_EXTENSION          = .3
-MAN_LINKS              = NO
-GENERATE_XML           = NO
-XML_OUTPUT             = xml
-XML_SCHEMA             =
-XML_DTD                =
-XML_PROGRAMLISTING     = YES
-GENERATE_AUTOGEN_DEF   = NO
-GENERATE_PERLMOD       = NO
-PERLMOD_LATEX          = NO
-PERLMOD_PRETTY         = YES
-PERLMOD_MAKEVAR_PREFIX =
-ENABLE_PREPROCESSING   = YES
-MACRO_EXPANSION        = NO
-EXPAND_ONLY_PREDEF     = NO
-SEARCH_INCLUDES        = YES
-INCLUDE_PATH           =
-INCLUDE_FILE_PATTERNS  =
-PREDEFINED             =
-EXPAND_AS_DEFINED      =
-SKIP_FUNCTION_MACROS   = YES
-TAGFILES               =
-GENERATE_TAGFILE       =
-ALLEXTERNALS           = NO
-EXTERNAL_GROUPS        = YES
-PERL_PATH              = /usr/bin/perl
-CLASS_DIAGRAMS         = YES
-HIDE_UNDOC_RELATIONS   = YES
-HAVE_DOT               = NO
-CLASS_GRAPH            = NO
-COLLABORATION_GRAPH    = YES
-UML_LOOK               = NO
-TEMPLATE_RELATIONS     = NO
-INCLUDE_GRAPH          = NO
-INCLUDED_BY_GRAPH      = YES
-CALL_GRAPH             = YES
-GRAPHICAL_HIERARCHY    = YES
-DOT_IMAGE_FORMAT       = png
-DOT_PATH               =
-DOTFILE_DIRS           =
-MAX_DOT_GRAPH_WIDTH    = 750
-MAX_DOT_GRAPH_HEIGHT   = 1024
-MAX_DOT_GRAPH_DEPTH    = 0
-GENERATE_LEGEND        = YES
-DOT_CLEANUP            = YES
-SEARCHENGINE           = NO

GNUmakefile

@@ -0,0 +1,72 @@
+# This is a very basic `make` wrapper around the CMake build toolchain.
+#
+# Supported arguments:
+#   PREFIX: sets the installation prefix
+#   GENERATOR: explicitly specifies the CMake generator to use
+
+CMAKE ?= cmake
+
+GENERATOR ?= $(shell (which ninja > /dev/null 2> /dev/null && echo Ninja) || \
+			 echo 'Unix Makefiles')
+prefix ?= /usr/local
+PREFIX ?= $(prefix)
+
+ifeq ($(GENERATOR), Ninja)
+BUILDFILE = build.ninja
+else
+BUILDFILE = Makefile
+endif
+
+
+# If CMake has generated an in-tree Makefile, use that instead (issue #6264)
+MAKE_DIR:=$(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))
+ifeq ($(shell test -f $(MAKE_DIR)/Makefile && echo 1), 1)
+
+all:
+	@+$(MAKE) -f $(MAKE_DIR)/Makefile $(MAKECMDGOALS) --no-print-directory
+%:
+	@+$(MAKE) -f $(MAKE_DIR)/Makefile $(MAKECMDGOALS) --no-print-directory
+
+else
+
+all: .begin build/fish
+
+.PHONY: .begin
+.begin:
+	@which $(CMAKE) > /dev/null 2> /dev/null || \
+		 (echo 'Please install CMake and then re-run the `make` command!' 1>&2 && false)
+
+.PHONY: build/fish
+build/fish: build/$(BUILDFILE)
+	$(CMAKE) --build build
+
+# Use build as an order-only dependency. This prevents the target from always being outdated
+# after a make run, and more importantly, doesn't clobber manually specified CMake options.
+build/$(BUILDFILE): | build
+	cd build; $(CMAKE) .. -G "$(GENERATOR)" \
+		-DCMAKE_INSTALL_PREFIX="$(PREFIX)" -DCMAKE_EXPORT_COMPILE_COMMANDS=1
+
+build:
+	mkdir -p build
+
+.PHONY: clean
+clean:
+	rm -rf build
+
+.PHONY: test
+test: build/fish
+	$(CMAKE) --build build --target test
+
+.PHONY: install
+install: build/fish
+	$(CMAKE) --build build --target install
+
+.PHONY: run
+run: build/fish
+	./build/fish || true
+
+.PHONY: exec
+exec: build/fish
+	exec ./build/fish
+
+endif # CMake in-tree build check

Makefile.in

@@ -1,986 +0,0 @@
-
-# Copyright (C) 2005-2006 Axel Liljencrantz
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-#
-
-#
-# @configure_input@
-#
-
-#
-# Makefile for the fish shell. Can build fish and associated
-# applications, install them, recalculate dependencies and also create
-# binary distributions in tar.bz2, tar.gz and rpm formats.
-#
-
-#
-# The fish buildprocess is quite complex. Do not stare directly into
-# the Makefile. Doing so may cause nausea, dizziness and
-# hallucinations.
-#
-
-# Used by docdir
-PACKAGE_TARNAME = @PACKAGE_TARNAME@
-
-#
-# Programs
-#
-
-CXX := @CXX@
-INSTALL:=@INSTALL@
-
-
-#
-# Installation directories
-#
-
-prefix = @prefix@
-exec_prefix = @exec_prefix@
-datarootdir = @datarootdir@
-datadir = @datadir@
-bindir = @bindir@
-mandir = @mandir@
-sysconfdir = @sysconfdir@
-docdir = @docdir@
-localedir = @localedir@
-optbindirs = @optbindirs@
-
-#
-# Various flags
-#
-
-MACROS = -DLOCALEDIR=\"$(localedir)\" -DPREFIX=L\"$(prefix)\" -DDATADIR=L\"$(datadir)\" -DSYSCONFDIR=L\"$(sysconfdir)\" -DBINDIR=L\"$(bindir)\"
-CXXFLAGS = @CXXFLAGS@ $(MACROS) $(EXTRA_CXXFLAGS)
-LDFLAGS = @LIBS@ @LDFLAGS@
-LDFLAGS_FISH = ${LDFLAGS} @LIBS_FISH@ @LDFLAGS_FISH@
-LDFLAGS_FISH_INDENT = ${LDFLAGS} @LIBS_FISH_INDENT@
-LDFLAGS_FISH_PAGER = ${LDFLAGS} @LIBS_FISH_PAGER@
-LDFLAGS_FISHD = ${LDFLAGS} @LIBS_FISHD@
-LDFLAGS_MIMEDB = ${LDFLAGS} @LIBS_MIMEDB@
-
-#
-# Set to 1 if we have gettext
-#
-
-HAVE_GETTEXT=@HAVE_GETTEXT@
-
-#
-# Set to 1 if we have doxygen
-#
-
-HAVE_DOXYGEN=@HAVE_DOXYGEN@
-
-#
-#Additional .cpp files used by common.o. These also have a corresponding
-#.h file.
-#
-
-COMMON_FILES := util.cpp fallback.cpp
-
-
-#
-# All objects that the system needs to build fish, except fish.o
-#
-
-FISH_OBJS := function.o builtin.o complete.o env.o exec.o expand.o		\
-	highlight.o history.o kill.o parser.o proc.o reader.o sanity.o		\
-	tokenizer.o wildcard.o wgetopt.o wutil.o input.o output.o intern.o	\
-	env_universal.o env_universal_common.o input_common.o event.o		\
-	signal.o io.o parse_util.o common.o screen.o path.o autoload.o		\
-	parser_keywords.o iothread.o color.o postfork.o	\
-	builtin_test.o
-
-FISH_INDENT_OBJS := fish_indent.o print_help.o common.o	\
-parser_keywords.o wutil.o tokenizer.o
-
-#
-# Additional files used by builtin.o
-#
-
-BUILTIN_FILES := builtin_set.cpp builtin_commandline.cpp	\
-	builtin_ulimit.cpp builtin_complete.cpp builtin_jobs.cpp	\
-	builtin_set_color.cpp builtin_printf.cpp
-
-
-#
-# All objects that the system needs to build fish_pager
-#
-
-FISH_PAGER_OBJS := fish_pager.o output.o wutil.o 		\
-	input_common.o env_universal.o env_universal_common.o common.o	\
-	print_help.o iothread.o color.o
-
-
-#
-# All objects that the system needs to build fish_tests
-#
-
-FISH_TESTS_OBJS := $(FISH_OBJS) fish_tests.o
-
-
-#
-# All objects that the system needs to build fishd
-#
-
-FISHD_OBJS := fishd.o env_universal_common.o wutil.o print_help.o	\
-	common.o
-
-
-#
-# All objects needed to build mimedb
-#
-
-MIME_OBJS := mimedb.o print_help.o xdgmimealias.o xdgmime.o				\
-	xdgmimeglob.o xdgmimeint.o xdgmimemagic.o xdgmimeparent.o wutil.o	\
-	common.o
-
-
-#
-# Files containing user documentation
-#
-
-#
-# These files are the source files, they contain a few @FOO@-style substitutions
-# Note that this order defines the order that they appear in the documentation
-#
-
-HDR_FILES_SRC := doc_src/index.hdr.in doc_src/tutorial.hdr doc_src/design.hdr doc_src/license.hdr doc_src/commands.hdr.in doc_src/faq.hdr
-
-
-#
-# These are the generated result files
-#
-
-HDR_FILES := $(HDR_FILES_SRC:.hdr.in=.hdr)
-
-# Use a pattern rule so that Make knows to only issue one invocation
-# per http://www.gnu.org/software/make/manual/make.html#Pattern-Intro
-
-# Internalized scripts are currently disabled.
-# For now, we just generate empty arrays.
-# To generate them again, you would run this:
-# ./internalize_scripts.py share/functions/*.fish share/completions/*.fish
-
-
-#
-# Files containing documentation for external commands.
-#
-
-HELP_SRC := $(wildcard doc_src/*.txt)
-
-
-#
-# Files in the test directory
-#
-
-TEST_IN := $(wildcard tests/test*.in)
-
-
-#
-# Files that should be added to the tar archives
-#
-
-#
-# Files in ./doc_src/
-#
-
-DOC_SRC_DIR_FILES := $(HDR_FILES_SRC) $(HELP_SRC)
-
-
-#
-# Files in ./
-#
-
-MAIN_DIR_FILES_UNSORTED := Doxyfile Doxyfile.user Doxyfile.help					\
-    Makefile.in configure configure.ac config.h.in install-sh					\
-    key_reader.cpp $(MIME_OBJS:.o=.h)											\
-    $(MIME_OBJS:.o=.cpp) $(FISH_OBJS:.o=.h) $(BUILTIN_FILES)					\
-    $(COMMON_FILES) $(COMMON_FILES:.cpp=.h) $(FISH_OBJS:.o=.cpp)				\
-    fish.spec.in INSTALL README user_doc.head.html								\
-    ChangeLog config.sub config.guess fish_tests.cpp fish.cpp fish_pager.cpp	\
-    fishd.cpp make_vcs_completions.fish $(FISH_INDENT_OBJS:.o=.cpp)
-
-#
-# The sorting is not meaningful in itself, but it has the side effect
-# of removing duplicates, which means there will be fewer warnings
-# during building.
-#
-
-MAIN_DIR_FILES := $(sort $(MAIN_DIR_FILES_UNSORTED))
-
-
-#
-# Files in ./tests/
-#
-
-TESTS_DIR_FILES := $(TEST_IN) $(TEST_IN:.in=.out) $(TEST_IN:.in=.err)	\
-	$(TEST_IN:.in=.status) tests/test.fish tests/gen_output.fish
-
-
-#
-# Files in ./share/completions/
-#
-
-COMPLETIONS_DIR_FILES := $(wildcard share/completions/*.fish)
-
-
-#
-# Files in ./share/functions/
-#
-
-FUNCTIONS_DIR_FILES := $(wildcard share/functions/*.fish)
-
-
-#
-# Programs to install
-#
-
-PROGRAMS := fish mimedb fish_pager fishd fish_indent
-
-#
-# Manual pages to install
-#
-
-MANUALS := $(addsuffix .1, $(addprefix share/man/man1/,	\
-	$(PROGRAMS)))
-
-
-#
-# All translation message catalogs
-#
-
-TRANSLATIONS_SRC := $(wildcard po/*.po)
-TRANSLATIONS := $(TRANSLATIONS_SRC:.po=.gmo)
-
-#
-# If Doxygen is not available, don't attempt to build the documentation
-#
-
-ifeq ($(HAVE_DOXYGEN), 1)
-  user_doc=user_doc
-  share_man=share/man
-else
-  user_doc=
-  share_man=
-endif
-
-#
-# Make everything needed for installing fish
-#
-
-all: $(PROGRAMS) $(user_doc) $(share_man) $(TRANSLATIONS)
-	@echo fish has now been built.
-	@echo Use \'$(MAKE) install\' to install fish.
-.PHONY: all
-
-#
-# Pull version information
-#
-
-FISH-BUILD-VERSION-FILE: FORCE
-	@./build_tools/git_version_gen.sh
--include FISH-BUILD-VERSION-FILE
-CPPFLAGS += -DFISH_BUILD_VERSION=\"$(FISH_BUILD_VERSION)\"
-.PHONY: FORCE
-env.o fish.o fish_indent.o fish_pager.o fishd.o mimedb.o: FISH-BUILD-VERSION-FILE
-
-
-#
-# These dependencies make sure that autoconf and configure are run
-# when the source code for the build configuration has changed.
-#
-
-configure: configure.ac
-	./config.status --recheck
-
-Makefile: Makefile.in configure
-	./config.status
-
-
-#
-# Build fish with some debug flags specified. This is GCC specific,
-# and should only be used when debuging fish.
-#
-
-prof: EXTRA_CXXFLAGS += -pg
-prof: LDFLAGS += -pg
-prof: all
-.PHONY: prof
-
-#
-# User documentation, describing the features of the fish shell.
-#
-
-# Depend on the sources (*.hdr.in) and manually make the
-# intermediate *.hdr and doc.h files if needed
-# The sed command deletes everything including and after the first -, for simpler version numbers
-
-user_doc: $(HDR_FILES_SRC) Doxyfile.user user_doc.head.html $(HELP_SRC) doc.h $(HDR_FILES)
-	(cat Doxyfile.user ; echo PROJECT_NUMBER=$(FISH_BUILD_VERSION) | sed "s/-.*//") | doxygen - && touch user_doc
-
-
-
-#
-# Source code documentation. Also includes user documentation.
-#
-
-doc: *.h *.cpp doc.h Doxyfile
-	(cat Doxyfile ; echo PROJECT_NUMBER=$(FISH_BUILD_VERSION)) | doxygen - ;
-
-
-#
-# PDF version of the source code documentation.
-#
-
-doc/refman.pdf: doc
-	cd doc/latex;
-	make;
-	mv refman.pdf ..;
-	cd ../..;
-	rm -r doc/latex;
-
-
-#
-# This target runs both the low level code tests and the high level script tests.
-#
-
-test: $(PROGRAMS) fish_tests
-	./fish_tests; cd tests; ../fish <test.fish;
-.PHONY: test
-
-
-#
-# commands.hdr collects documentation on all commands, functions and
-# builtins
-#
-
-doc_src/commands.hdr:$(HELP_SRC) doc_src/commands.hdr.in
-	-rm command_list.tmp command_list_toc.tmp $@
-	for i in `printf "%s\n" $(HELP_SRC)|sort`; do \
-		echo "<hr>" >>command_list.tmp; \
-		cat $$i >>command_list.tmp; \
-		echo >>command_list.tmp; \
-		echo >>command_list.tmp; \
-		NAME=`basename $$i .txt`; \
-		echo '- <a href="#'$$NAME'">'$$NAME'</a>' >> command_list_toc.tmp; \
-		echo "Back to <a href='index.html#toc-commands'>index</a>". >>command_list.tmp; \
-	done
-	mv command_list.tmp command_list.txt
-	mv command_list_toc.tmp command_list_toc.txt
-	cat $@.in | awk '{if ($$0 ~ /@command_list_toc@/) { system("cat command_list_toc.txt"); } else if ($$0 ~ /@command_list@/){ system("cat command_list.txt");} else{ print $$0;}}' >$@
-
-
-toc.txt: $(HDR_FILES:index.hdr=index.hdr.in)
-	-rm toc.tmp $@
-	# Ugly hack to set the toc initial title for the main page
-	echo '- <a href="index.html" id="toc-index">Documentation</a>' > toc.tmp
-	# The first sed command captures the page name, followed by the description
-	# The second sed command captures the command name \1 and the description \2, but only up to a dash
-	# This is to reduce the size of the TOC in the command listing on the main page
-	for i in $(HDR_FILES:index.hdr=index.hdr.in); do\
-		NAME=`basename $$i .hdr`; \
-		NAME=`basename $$NAME .hdr.in`; \
-		sed <$$i >>toc.tmp -n \
-		-e 's,.*\\page *\([^ ]*\) *\(.*\)$$,- <a href="'$$NAME'.html" id="toc-'$$NAME'">\2</a>,p' \
-		-e 's,.*\\section *\([^ ]*\) *\([^-]*\)\(.*\)$$,  - <a href="'$$NAME'.html#\1">\2</a>,p'; \
-	done
-	mv toc.tmp $@
-
-doc_src/index.hdr: toc.txt doc_src/index.hdr.in
-	cat $@.in | awk '{if ($$0 ~ /@toc@/){ system("cat toc.txt");} else{ print $$0;}}' >$@
-
-
-#
-# doc.h is a compilation of the various snipptes of text used both for
-# the user documentation and for internal help functions into a single
-# file that can be parsed dy Doxygen to generate the user
-# documentation.
-#
-
-doc.h: $(HDR_FILES)
-	cat $(HDR_FILES) >$@
-
-#
-# This rule creates complete doxygen headers from each of the various
-# snipptes of text used both for the user documentation and for
-# internal help functions, that can be parsed to Doxygen to generate
-# the internal help function text.
-#
-
-%.doxygen:%.txt
-	echo  "/** \page " `basename $*` >$@;
-	cat $*.txt >>$@;
-	echo "*/" >>$@
-
-%: %.in
-	sed <$@.in >$@ \
-		-e "s,@sysconfdir\@,$(sysconfdir),g" \
-		-e "s,@datadir\@,$(datadir),g" \
-		-e "s,@docdir\@,$(docdir),g" \
-		-e "s|@configure_input\@|$@, generated from $@.in by the Makefile. DO NOT MANUALLY EDIT THIS FILE!|g" \
-		-e "s,@prefix\@,$(prefix),g" \
-		-e "s,@optbindirs\@,$(optbindirs),g"
-#-e "s,@\@,$(),"
-
-
-#
-# Compile translation files to binary format
-#
-
-%.gmo:
-	if test "$(HAVE_GETTEXT)" = 1; then \
-		msgfmt -o $*.gmo $*.po; \
-	fi
-
-
-#
-# Update existing po file or copy messages.pot
-#
-
-%.po:messages.pot
-	if test $(HAVE_GETTEXT) = 1;then \
-		if test -f $*.po; then \
-			msgmerge -U --backup=existing $*.po messages.pot;\
-		else \
-			cp messages.pot $*.po;\
-		fi; \
-	fi
-
-
-#
-# Create a template translation object
-#
-
-messages.pot: *.cpp *.h share/completions/*.fish share/functions/*.fish
-	if test $(HAVE_GETTEXT) = 1;then \
-		xgettext -k_ -kN_ *.cpp *.h -o messages.pot; \
-		if xgettext -j -k_ -kN_ -k--description -LShell share/completions/*.fish share/functions/*.fish -o messages.pot; then true; else \
-			echo "Your xgettext version is too old to build the messages.pot file"\
-			rm messages.pot\
-			false;\
-		fi; \
-	fi
-
-builtin.o: $(BUILTIN_FILES)
-
-common.o: $(COMMON_FILES)
-
-
-#
-# Generate the internal help functions by making doxygen create
-# man-pages. The convertion path looks like this:
-#
-#   .txt file
-#       ||
-#     (make)
-#       ||
-#       \/
-#  .doxygen file
-#       ||
-#    (doxygen)
-#       ||
-#       \/
-#    roff file
-#       ||
-# (__fish_print_help)
-#       ||
-#       \/
-#   formated text
-#   with escape
-#    sequences
-#
-#
-# There ought to be something simpler.
-#
-
-share/man: $(HELP_SRC)
-	-mkdir share/man
-	touch share/man
-	-rm -Rf share/man/man1
-	./build_tools/build_documentation.sh Doxyfile.help ./doc_src ./share
-
-#
-# The build rules for installing/uninstalling fish
-#
-
-#
-# Check for an incompatible installed fish version, and fail with an
-# error if found
-#
-
-check-uninstall:
-	if test -f $(DESTDIR)$(sysconfdir)/fish.d/fish_function.fish -o -f $(DESTDIR)$(sysconfdir)/fish.d/fish_complete.fish; then \
-		echo;\
-		echo ERROR;\
-		echo;\
-		echo An older fish installation using an incompatible filesystem hierarchy was detected;\
-		echo You must uninstall this fish version before proceeding;\
-		echo type \'$(MAKE) uninstall-legacy\' to uninstall these files,;\
-		echo or type \'$(MAKE) force-install\' to force installation.;\
-		echo The latter may result in a broken installation.;\
-		echo;\
-		false;\
-	fi;
-	if test -f $(DESTDIR)$(sysconfdir)/fish; then \
-		echo;\
-		echo ERROR;\
-		echo;\
-		echo An older fish installation using an incompatible filesystem hierarchy was detected;\
-		echo You must remove the file $(DESTDIR)$(sysconfdir)/fish before proceeding;\
-		echo type \'$(MAKE) uninstall-legacy\' to uninstall this file,;\
-		echo or remove it manually using \'rm $(DESTDIR)$(sysconfdir)/fish\'.;\
-		echo;\
-		false;\
-	fi;
-.PHONY: check-uninstall
-
-check-legacy-binaries:
-	@SEQLOC=$(prefix)/bin/seq;\
-	if test -f "$$SEQLOC" && grep -q '\(^#!/.*/fish\|^#!/usr/bin/env fish\)' "$$SEQLOC"; then\
-		echo "An outdated seq from a previous fish install was found. You should remove it with:";\
-		echo "    rm '$$SEQLOC'";\
-	fi;
-	@SETCOLOR_LOC=$(prefix)/bin/set_color;\
-	if test -x "$$SETCOLOR_LOC" && $$SETCOLOR_LOC -v 2>&1 >/dev/null | grep -q "^set_color, version "; then\
-		echo "An outdated set_color from a previous fish install was found. You should remove it with:";\
-		echo "    rm '$$SETCOLOR_LOC'";\
-	fi;
-	@true;
-.PHONY: check-legacy-binaries
-
-
-#
-# This check makes sure that the install-sh script is executable. The
-# darcs repo doesn't preserve the executable bit, so this needs to be
-# run after checkout.
-#
-
-install-sh:
-	if test -x $@; then true; else chmod 755 $@; fi
-.PHONY: install-sh
-
-
-#
-# Try to install after checking for incompatible installed versions.
-#
-
-install: all install-sh check-uninstall install-force check-legacy-binaries
-.PHONY: install
-
-#
-# Xcode install
-#
-xcode-install:
-	rm -Rf /tmp/fish_build;\
-	xcodebuild install DSTROOT=/tmp/fish_build;\
-	ditto /tmp/fish_build /
-.PHONY: xcode-install
-
-#
-# Force installation, even in presense of incompatible previous
-# version. This may fail.
-# These 'true' lines are to prevent installs from failing for (e.g.) missing man pages.
-#
-
-install-force: all install-translations
-	$(INSTALL) -m 755 -d $(DESTDIR)$(bindir)
-	for i in $(PROGRAMS); do\
-		$(INSTALL) -m 755 $$i $(DESTDIR)$(bindir) ; \
-		true ;\
-	done;
-	$(INSTALL) -m 755 -d $(DESTDIR)$(sysconfdir)/fish
-	$(INSTALL) -m 755 -d $(DESTDIR)$(datadir)/fish
-	$(INSTALL) -m 755 -d $(DESTDIR)$(datadir)/fish/completions
-	$(INSTALL) -m 755 -d $(DESTDIR)$(datadir)/fish/functions
-	$(INSTALL) -m 755 -d $(DESTDIR)$(datadir)/fish/man/man1
-	$(INSTALL) -m 755 -d $(DESTDIR)$(datadir)/fish/tools
-	$(INSTALL) -m 755 -d $(DESTDIR)$(datadir)/fish/tools/web_config
-	$(INSTALL) -m 755 -d $(DESTDIR)$(datadir)/fish/tools/web_config/sample_prompts
-	$(INSTALL) -m 644 etc/config.fish                  $(DESTDIR)$(sysconfdir)/fish/
-	$(INSTALL) -m 644 share/config.fish                $(DESTDIR)$(datadir)/fish/
-	for i in $(COMPLETIONS_DIR_FILES:%='%'); do \
-		$(INSTALL) -m 644 $$i $(DESTDIR)$(datadir)/fish/completions/; \
-		true; \
-	done;
-	for i in $(FUNCTIONS_DIR_FILES:%='%'); do \
-		$(INSTALL) -m 644 $$i $(DESTDIR)$(datadir)/fish/functions/; \
-		true; \
-	done;
-	for i in share/man/man1/*.1; do \
-		$(INSTALL) -m 644 $$i $(DESTDIR)$(datadir)/fish/man/man1/; \
-		true; \
-	done;
-	for i in share/tools/*.py; do\
-		$(INSTALL) -m 755 $$i $(DESTDIR)$(datadir)/fish/tools/; \
-		true; \
-	done;
-	for i in share/tools/web_config/*; do\
-		$(INSTALL) -m 644 $$i $(DESTDIR)$(datadir)/fish/tools/web_config/; \
-		true; \
-	done;
-	for i in share/tools/web_config/sample_prompts/*.fish; do\
-		$(INSTALL) -m 644 $$i $(DESTDIR)$(datadir)/fish/tools/web_config/sample_prompts/; \
-		true; \
-	done;
-	for i in share/tools/web_config/*.py; do\
-		$(INSTALL) -m 755 $$i $(DESTDIR)$(datadir)/fish/tools/web_config/; \
-		true; \
-	done;
-
-	$(INSTALL) -m 755 -d $(DESTDIR)$(docdir)
-	for i in user_doc/html/* ChangeLog; do \
-		if test -f $$i; then \
-			$(INSTALL) -m 644 $$i $(DESTDIR)$(docdir); \
-		fi; \
-	done;
-	$(INSTALL) -m 755 -d $(DESTDIR)$(mandir)/man1
-	for i in $(MANUALS); do \
-		$(INSTALL) -m 644 $$i $(DESTDIR)$(mandir)/man1/; \
-		true; \
-	done;
-	@echo fish is now installed on your system.
-	@echo To run fish, type \'fish\' in your terminal.
-	@echo
-	@if type chsh &> /dev/null; then \
-		echo To use fish as your login shell:; \
-		grep -q -- "$(DESTDIR)$(bindir)/fish" /etc/shells || echo \* add the line \'$(DESTDIR)$(bindir)/fish\' to the file \'/etc/shells\'.; \
-		echo \* use the command \'chsh -s $(DESTDIR)$(bindir)/fish\'.; \
-		echo; \
-	fi;
-	@echo To set your colors, run \'fish_config\'
-	@echo To scan your man pages for completions, run \'fish_update_completions\'
-	@echo To autocomplete command suggestions press Ctrl + F or right arrow key.
-	@echo
-	@echo Have fun!
-.PHONY: install-force
-
-
-#
-# Uninstall this fish version
-#
-
-uninstall: uninstall-translations
-	-for i in $(PROGRAMS); do \
-		rm -f $(DESTDIR)$(bindir)/$$i; \
-	done;
-	-rm -rf $(DESTDIR)$(sysconfdir)/fish
-	-if test -d $(DESTDIR)$(datadir)/fish; then \
-		rm -r $(DESTDIR)$(datadir)/fish; \
-	fi
-	-if test -d $(DESTDIR)$(docdir); then \
-		rm -rf $(DESTDIR)$(docdir);\
-	fi
-	-for i in $(MANUALS); do \
-		rm -rf $(DESTDIR)$(mandir)/man1/`basename $$i`*; \
-	done;
-.PHONY: uninstall
-
-
-#
-# Uninstall an older fish release. This is not the default uninstall
-# since there is a slight chance that it removes a file put in place by
-# the sysadmin. But if 'make install' detects a file confligt, it
-# suggests using this target.
-#
-
-uninstall-legacy: uninstall
-	-rm -f $(DESTDIR)$(sysconfdir)/fish.d/fish_interactive.fish
-	-rm -f $(DESTDIR)$(sysconfdir)/fish.d/fish_complete.fish
-	-rm -f $(DESTDIR)$(sysconfdir)/fish.d/fish_function.fish
-	-rm -f $(DESTDIR)$(sysconfdir)/fish/fish_inputrc
-	-if test -d $(DESTDIR)$(sysconfdir)/fish.d/completions; then \
-		for i in $(COMPLETIONS_DIR_FILES); do \
-			basename=`basename $$i`; \
-			if test -f $(DESTDIR)$(sysconfdir)/fish.d/completions/$$basename; then \
-				rm $(DESTDIR)$(sysconfdir)/fish.d/completions/$$basename; \
-			fi; \
-		done; \
-	fi;
-	-rmdir $(DESTDIR)$(sysconfdir)/fish.d/completions
-	-rmdir $(DESTDIR)$(sysconfdir)/fish.d
-	-rm $(DESTDIR)$(sysconfdir)/fish
-	@echo The previous fish installation has been removed.
-.PHONY: uninstall-legacy
-
-install-translations: $(TRANSLATIONS)
-	if test $(HAVE_GETTEXT) = 1; then \
-		for i in $(TRANSLATIONS); do \
-			$(INSTALL) -m 755 -d $(DESTDIR)$(datadir)/locale/`basename $$i .gmo`/LC_MESSAGES; \
-			$(INSTALL) -m 644 $$i $(DESTDIR)$(datadir)/locale/`basename $$i .gmo`/LC_MESSAGES/fish.mo; \
-			echo $(DESTDIR)$(datadir)/locale/`basename $$i .gmo`/LC_MESSAGES/fish.mo;\
-		done; \
-	fi;
-.PHONY: install-translations
-
-uninstall-translations:
-	if test $(HAVE_GETTEXT) = 1; then \
-		for i in $(TRANSLATIONS_SRC); do \
-			rm -f $(DESTDIR)$(datadir)/locale/*/LC_MESSAGES/fish.mo; \
-		done; \
-	fi
-.PHONY: uninstall-translations
-
-
-#
-# The build rules for all the commands
-#
-
-#
-# Build the fish program.
-#
-
-fish: $(FISH_OBJS) fish.o
-	$(CXX) $(FISH_OBJS) fish.o $(LDFLAGS_FISH) -o $@
-
-
-#
-# Build the fish_pager program.
-#
-
-fish_pager: $(FISH_PAGER_OBJS)
-	$(CXX) $(FISH_PAGER_OBJS) $(LDFLAGS_FISH_PAGER) -o $@
-
-
-#
-# Build the fishd program.
-#
-
-fishd: $(FISHD_OBJS)
-	$(CXX) $(FISHD_OBJS) $(LDFLAGS_FISHD) -o $@
-
-
-#
-# Build the fish_tests program.
-#
-
-fish_tests: $(FISH_TESTS_OBJS)
-	$(CXX) $(FISH_TESTS_OBJS) $(LDFLAGS_FISH) -o $@
-
-
-#
-# Build the mimedb program.
-#
-# mimedb does not need any libraries, so we don't use LDFLAGS here.
-#
-
-mimedb: $(MIME_OBJS)
-	$(CXX) $(MIME_OBJS) $(LDFLAGS_MIMEDB) -o $@
-
-
-#
-# Build the fish_indent program.
-#
-
-fish_indent: $(FISH_INDENT_OBJS)
-	$(CXX) $(FISH_INDENT_OBJS) $(LDFLAGS_FISH_INDENT) -o $@
-
-
-#
-# Neat little program to show output from terminal
-#
-
-key_reader: key_reader.o input_common.o common.o env_universal.o env_universal_common.o wutil.o iothread.o
-	$(CXX) key_reader.o input_common.o common.o env_universal.o env_universal_common.o wutil.o iothread.o $(LDFLAGS_FISH) -o $@
-
-
-#
-# Update dependencies
-#
-depend:
-	makedepend -fMakefile.in -Y *.cpp
-	./config.status
-.PHONY: depend
-
-#
-# Build the RPM spec file.
-#
-
-fish.spec: fish.spec.in
-	./config.status
-
-#
-# Cleanup targets
-#
-
-#
-# distclean should restore the tree to the state right after extracting a tarball.
-#
-
-distclean: clean
-	rm -f fish.spec
-	rm -f config.status config.log config.h Makefile
-.PHONY: distclean
-
-
-#
-# clean removes everything built by the makefile, but not things that
-# are created by the configure script.
-#
-
-# Don't delete the docs unless we have Doxygen installed
-# We provide pre-built docs in the tarball, and if they get
-# deleted we won't be able to regenerate them
-
-clean:
-	rm -f *.o doc.h doc.tmp doc_src/*.doxygen doc_src/*.cpp doc_src/*.o doc_src/commands.hdr
-	rm -f $(GENERATED_INTERN_SCRIPT_FILES)
-	rm -f tests/tmp.err tests/tmp.out tests/tmp.status tests/foo.txt
-	rm -f $(PROGRAMS) fish_tests key_reader
-	rm -f command_list.txt command_list_toc.txt toc.txt
-	rm -f doc_src/index.hdr doc_src/commands.hdr
-	rm -f FISH-BUILD-VERSION-FILE
-	if test "$(HAVE_DOXYGEN)" = 1; then \
-		rm -rf doc user_doc share/man; \
-	fi
-	rm -f $(TRANSLATIONS)
-.PHONY: clean
-
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-autoload.o: config.h autoload.h common.h util.h lru.h wutil.h signal.h env.h
-autoload.o: exec.h proc.h io.h
-builtin.o: config.h signal.h fallback.h util.h wutil.h common.h builtin.h
-builtin.o: io.h function.h event.h complete.h proc.h parser.h reader.h env.h
-builtin.o: wgetopt.h sanity.h tokenizer.h wildcard.h expand.h input_common.h
-builtin.o: input.h intern.h exec.h highlight.h screen.h color.h parse_util.h
-builtin.o: autoload.h lru.h parser_keywords.h path.h history.h
-builtin.o: builtin_set.cpp builtin_commandline.cpp builtin_complete.cpp
-builtin.o: builtin_ulimit.cpp builtin_jobs.cpp builtin_printf.cpp
-builtin_commandline.o: config.h signal.h fallback.h util.h wutil.h common.h
-builtin_commandline.o: builtin.h io.h wgetopt.h reader.h complete.h proc.h
-builtin_commandline.o: parser.h event.h function.h tokenizer.h input_common.h
-builtin_commandline.o: input.h parse_util.h autoload.h lru.h
-builtin_complete.o: config.h signal.h fallback.h util.h wutil.h common.h
-builtin_complete.o: builtin.h io.h complete.h wgetopt.h parser.h proc.h
-builtin_complete.o: event.h function.h reader.h
-builtin_jobs.o: config.h fallback.h signal.h util.h wutil.h common.h
-builtin_jobs.o: builtin.h io.h proc.h parser.h event.h function.h wgetopt.h
-builtin_set.o: config.h signal.h fallback.h util.h wutil.h common.h builtin.h
-builtin_set.o: io.h env.h expand.h wgetopt.h proc.h parser.h event.h
-builtin_set.o: function.h
-builtin_test.o: config.h common.h util.h builtin.h io.h wutil.h proc.h
-builtin_test.o: signal.h
-builtin_ulimit.o: config.h fallback.h signal.h util.h builtin.h io.h common.h
-builtin_ulimit.o: wgetopt.h
-builtin_printf.o: wgetopt.h
-color.o: color.h config.h common.h util.h fallback.h signal.h
-common.o: config.h fallback.h signal.h util.h wutil.h common.h expand.h
-common.o: proc.h io.h wildcard.h parser.h event.h function.h complete.h
-common.o: util.cpp fallback.cpp
-complete.o: config.h signal.h fallback.h util.h tokenizer.h common.h
-complete.o: wildcard.h expand.h proc.h io.h parser.h event.h function.h
-complete.o: complete.h builtin.h env.h exec.h reader.h history.h wutil.h
-complete.o: intern.h parse_util.h autoload.h lru.h parser_keywords.h path.h
-env.o: config.h signal.h fallback.h util.h wutil.h common.h proc.h io.h env.h
-env.o: sanity.h expand.h history.h reader.h complete.h parser.h event.h
-env.o: function.h env_universal.h env_universal_common.h input.h
-env.o: input_common.h path.h
-env_universal.o: config.h signal.h fallback.h util.h common.h wutil.h
-env_universal.o: env_universal_common.h env_universal.h
-env_universal_common.o: config.h signal.h fallback.h util.h common.h wutil.h
-env_universal_common.o: env_universal_common.h
-event.o: config.h signal.h fallback.h util.h wutil.h common.h function.h
-event.o: event.h proc.h io.h parser.h
-exec.o: config.h signal.h fallback.h util.h iothread.h postfork.h common.h
-exec.o: proc.h io.h wutil.h exec.h parser.h event.h function.h builtin.h
-exec.o: env.h wildcard.h expand.h sanity.h parse_util.h autoload.h lru.h
-expand.o: config.h signal.h fallback.h util.h common.h wutil.h env.h proc.h
-expand.o: io.h parser.h event.h function.h expand.h wildcard.h exec.h
-expand.o: tokenizer.h complete.h parse_util.h autoload.h lru.h
-fallback.o: config.h fallback.h signal.h util.h
-fish.o: config.h signal.h fallback.h util.h common.h reader.h io.h complete.h
-fish.o: builtin.h function.h event.h wutil.h env.h sanity.h proc.h parser.h
-fish.o: expand.h intern.h exec.h output.h screen.h color.h history.h path.h
-fish_indent.o: config.h fallback.h signal.h util.h common.h wutil.h
-fish_indent.o: tokenizer.h print_help.h parser_keywords.h
-fish_pager.o: config.h signal.h fallback.h util.h wutil.h common.h complete.h
-fish_pager.o: output.h screen.h color.h input_common.h env_universal.h
-fish_pager.o: env_universal_common.h print_help.h
-fish_tests.o: config.h signal.h fallback.h util.h common.h proc.h io.h
-fish_tests.o: reader.h complete.h builtin.h function.h event.h autoload.h
-fish_tests.o: lru.h wutil.h env.h expand.h parser.h tokenizer.h output.h
-fish_tests.o: screen.h color.h exec.h path.h history.h highlight.h iothread.h
-fish_tests.o: postfork.h
-fishd.o: config.h signal.h fallback.h util.h common.h wutil.h
-fishd.o: env_universal_common.h path.h env.h print_help.h
-function.o: config.h signal.h wutil.h common.h util.h fallback.h function.h
-function.o: event.h proc.h io.h parser.h intern.h reader.h complete.h
-function.o: parse_util.h autoload.h lru.h parser_keywords.h env.h expand.h
-highlight.o: config.h signal.h fallback.h util.h wutil.h common.h highlight.h
-highlight.o: env.h screen.h color.h tokenizer.h proc.h io.h parser.h event.h
-highlight.o: function.h parse_util.h autoload.h lru.h parser_keywords.h
-highlight.o: builtin.h expand.h sanity.h complete.h output.h wildcard.h
-highlight.o: path.h history.h
-history.o: config.h fallback.h signal.h util.h sanity.h tokenizer.h common.h
-history.o: wutil.h history.h intern.h path.h env.h autoload.h lru.h
-history.o: iothread.h
-input.o: config.h signal.h fallback.h util.h wutil.h common.h reader.h io.h
-input.o: complete.h proc.h sanity.h input_common.h input.h parser.h event.h
-input.o: function.h env.h expand.h output.h screen.h color.h intern.h
-input_common.o: config.h fallback.h signal.h util.h common.h wutil.h
-input_common.o: input_common.h env_universal.h env_universal_common.h
-input_common.o: iothread.h
-intern.o: config.h fallback.h signal.h util.h wutil.h common.h intern.h
-io.o: config.h fallback.h signal.h util.h wutil.h common.h exec.h proc.h io.h
-iothread.o: config.h iothread.h common.h util.h signal.h
-key_reader.o: config.h common.h util.h fallback.h signal.h input_common.h
-kill.o: config.h signal.h fallback.h util.h wutil.h common.h kill.h proc.h
-kill.o: io.h sanity.h env.h exec.h path.h
-mimedb.o: config.h xdgmime.h fallback.h signal.h util.h print_help.h
-output.o: config.h signal.h fallback.h util.h wutil.h common.h expand.h
-output.o: output.h screen.h color.h highlight.h env.h
-parse_util.o: config.h fallback.h signal.h util.h wutil.h common.h
-parse_util.o: tokenizer.h parse_util.h autoload.h lru.h expand.h intern.h
-parse_util.o: exec.h proc.h io.h env.h wildcard.h
-parser.o: config.h signal.h fallback.h util.h common.h wutil.h proc.h io.h
-parser.o: parser.h event.h function.h parser_keywords.h tokenizer.h exec.h
-parser.o: wildcard.h expand.h builtin.h env.h reader.h complete.h sanity.h
-parser.o: env_universal.h env_universal_common.h intern.h parse_util.h
-parser.o: autoload.h lru.h path.h
-parser_keywords.o: config.h fallback.h signal.h common.h util.h
-parser_keywords.o: parser_keywords.h
-path.o: config.h fallback.h signal.h util.h common.h env.h wutil.h path.h
-path.o: expand.h
-postfork.o: signal.h postfork.h config.h common.h util.h proc.h io.h wutil.h
-postfork.o: iothread.h exec.h
-print_help.o: print_help.h
-proc.o: config.h signal.h fallback.h util.h wutil.h common.h proc.h io.h
-proc.o: reader.h complete.h sanity.h env.h parser.h event.h function.h
-proc.o: output.h screen.h color.h
-reader.o: config.h signal.h fallback.h util.h wutil.h common.h highlight.h
-reader.o: env.h screen.h color.h reader.h io.h complete.h proc.h parser.h
-reader.o: event.h function.h history.h sanity.h exec.h expand.h tokenizer.h
-reader.o: kill.h input_common.h input.h output.h iothread.h intern.h path.h
-reader.o: parse_util.h autoload.h lru.h
-sanity.o: config.h signal.h fallback.h util.h common.h sanity.h proc.h io.h
-sanity.o: history.h wutil.h reader.h complete.h kill.h
-screen.o: config.h fallback.h signal.h common.h util.h wutil.h output.h
-screen.o: screen.h color.h highlight.h env.h
-signal.o: config.h signal.h common.h util.h fallback.h wutil.h event.h
-signal.o: reader.h io.h complete.h proc.h
-tokenizer.o: config.h fallback.h signal.h util.h wutil.h common.h tokenizer.h
-util.o: config.h fallback.h signal.h util.h common.h wutil.h
-wgetopt.o: config.h wgetopt.h wutil.h common.h util.h fallback.h signal.h
-wildcard.o: config.h fallback.h signal.h util.h wutil.h common.h complete.h
-wildcard.o: wildcard.h expand.h reader.h io.h exec.h proc.h
-wutil.o: config.h fallback.h signal.h util.h common.h wutil.h
-xdgmime.o: xdgmime.h xdgmimeint.h xdgmimeglob.h xdgmimemagic.h xdgmimealias.h
-xdgmime.o: xdgmimeparent.h
-xdgmimealias.o: xdgmimealias.h xdgmime.h xdgmimeint.h
-xdgmimeglob.o: xdgmimeglob.h xdgmime.h xdgmimeint.h
-xdgmimeint.o: xdgmimeint.h xdgmime.h
-xdgmimemagic.o: xdgmimemagic.h xdgmime.h xdgmimeint.h
-xdgmimeparent.o: xdgmimeparent.h xdgmime.h xdgmimeint.h

README.md

@@ -1,73 +0,0 @@
-[fish](http://fishshell.com/) - the friendly interactive shell
-================================================
-
-fish is a smart and user-friendly command line shell for OS X, Linux, and the rest of the family. fish includes features like syntax highlighting, autosuggest-as-you-type, and fancy tab completions that just work, with no configuration required.
-
-For more on fish's design philosophy, see the [design document](http://fishshell.com/docs/2.0/design.html).
-
-## Quick Start
-
-fish generally works like other shells, like bash or zsh. A few important differences can be found at <http://fishshell.com/tutorial.html> by searching for magic phrase 'unlike other shells'.
-
-Detailed user documentation is available by running `help` within fish, and also at <http://fishshell.com/docs/2.0/index.html>
-
-## Building
-
-fish is written in a sane subset of C++98, with a few components from C++TR1. It builds successfully with g++ 4.2 or later, and with clang. It also will build as C++11.
-
-fish can be built using autotools or Xcode. autoconf 2.60 or later is required.
-
-fish requires gettext for translation support.
-
-### Autotools Build
-
-    autoconf
-    ./configure
-    make [gmake on BSD]
-    sudo make install
-
-### Xcode Development Build
-
-* Build the `base` target in Xcode
-* Run the fish executable, for example, in `DerivedData/fish/Build/Products/Debug/base/bin/fish`
-
-### Xcode Build and Install
-
-    xcodebuild install
-    sudo ditto /tmp/fish.dst /
-
-## Help, it didn't build!
-
-If fish reports that it could not find curses, try installing a curses development package and build again.
-
-On Debian or Ubuntu you want:
-
-    sudo apt-get install libncurses5-dev
-
-on RedHat, CentOS, or Amazon EC2:
-
-    sudo yum install ncurses-devel
-
-## Packages for Linux
-
-Nightly builds for several Linux distros can be downloaded from <http://download.opensuse.org/repositories/home:/siteshwar/>
-
-## Switching to fish
-
-If you wish to use fish as your default shell, use the following command:
-
-	chsh -s /usr/local/bin/fish
-
-chsh will prompt you for your password, and change your default shell.
-
-To switch your default shell back, you can run:
-
-	chsh -s /bin/bash
-
-Substitute /bin/bash with /bin/tcsh or /bin/zsh as appropriate.
-
-## Contact Us
-
-Questions, comments, rants and raves can be posted to the official fish mailing list at <https://lists.sourceforge.net/lists/listinfo/fish-users> or join us on our IRC channel [#fish at irc.oftc.net](https://webchat.oftc.net/?channels=fish).
-
-Found a bug? Have an awesome idea? Please open an issue on this github page.

README.rst

@@ -0,0 +1,237 @@
+`fish <https://fishshell.com/>`__ - the friendly interactive shell |Build Status|
+=================================================================================
+
+fish is a smart and user-friendly command line shell for macOS, Linux,
+and the rest of the family. fish includes features like syntax
+highlighting, autosuggest-as-you-type, and fancy tab completions that
+just work, with no configuration required.
+
+For more on fish’s design philosophy, see the `design
+document <https://fishshell.com/docs/current/design.html>`__.
+
+Quick Start
+-----------
+
+fish generally works like other shells, like bash or zsh. A few
+important differences can be found at
+https://fishshell.com/docs/current/tutorial.html by searching for the
+magic phrase “unlike other shells”.
+
+Detailed user documentation is available by running ``help`` within
+fish, and also at https://fishshell.com/docs/current/index.html
+
+You can quickly play with fish right in your browser by clicking the
+button below:
+
+|Try in browser|
+
+Getting fish
+------------
+
+macOS
+~~~~~
+
+fish can be installed:
+
+-  using `Homebrew <http://brew.sh/>`__: ``brew install fish``
+-  using `MacPorts <https://www.macports.org/>`__:
+   ``sudo port install fish``
+-  using the `installer from fishshell.com <https://fishshell.com/>`__
+-  as a `standalone app from fishshell.com <https://fishshell.com/>`__
+
+Packages for Linux
+~~~~~~~~~~~~~~~~~~
+
+Packages for Debian, Fedora, openSUSE, and Red Hat Enterprise
+Linux/CentOS are available from the `openSUSE Build
+Service <https://software.opensuse.org/download.html?project=shells%3Afish&package=fish>`__.
+
+Packages for Ubuntu are available from the `fish
+PPA <https://launchpad.net/~fish-shell/+archive/ubuntu/release-3>`__,
+and can be installed using the following commands:
+
+::
+
+   sudo apt-add-repository ppa:fish-shell/release-3
+   sudo apt-get update
+   sudo apt-get install fish
+
+Instructions for other distributions may be found at
+`fishshell.com <https://fishshell.com>`__.
+
+Windows
+~~~~~~~
+
+-  On Windows 10, fish can be installed under the WSL Windows Subsystem
+   for Linux with the instructions for the appropriate distribution
+   listed above under “Packages for Linux”, or from source with the
+   instructions below.
+-  Fish can also be installed on all versions of Windows using
+   `Cygwin <https://cygwin.com/>`__ (from the **Shells** category).
+
+Building from source
+~~~~~~~~~~~~~~~~~~~~
+
+If packages are not available for your platform, GPG-signed tarballs are
+available from `fishshell.com <https://fishshell.com/>`__ and
+`fish-shell on
+GitHub <https://github.com/fish-shell/fish-shell/releases>`__. See the
+*Building* section for instructions.
+
+Running fish
+------------
+
+Once installed, run ``fish`` from your current shell to try fish out!
+
+Dependencies
+~~~~~~~~~~~~
+
+Running fish requires:
+
+-  curses or ncurses (preinstalled on most \*nix systems)
+-  some common \*nix system utilities (currently ``mktemp``), in
+   addition to the basic POSIX utilities (``cat``, ``cut``, ``dirname``,
+   ``ls``, ``mkdir``, ``mkfifo``, ``rm``, ``sort``, ``tee``, ``tr``,
+   ``uname`` and ``sed`` at least, but the full coreutils plus ``find`` and
+   ``awk`` is preferred)
+-  The gettext library, if compiled with
+   translation support
+
+The following optional features also have specific requirements:
+
+-  builtin commands that have the ``--help`` option or print usage
+   messages require ``ul`` and either ``nroff`` or ``mandoc`` for
+   display
+-  automated completion generation from manual pages requires Python 3.5+
+-  the ``fish_config`` web configuration tool requires Python 3.5+ and a web browser
+-  system clipboard integration (with the default Ctrl-V and Ctrl-X
+   bindings) require either the ``xsel``, ``xclip``,
+   ``wl-copy``/``wl-paste`` or ``pbcopy``/``pbpaste`` utilities
+-  full completions for ``yarn`` and ``npm`` require the
+   ``all-the-package-names`` NPM module
+
+Switching to fish
+~~~~~~~~~~~~~~~~~
+
+If you wish to use fish as your default shell, use the following
+command:
+
+::
+
+   chsh -s /usr/local/bin/fish
+
+``chsh`` will prompt you for your password and change your default
+shell. (Substitute ``/usr/local/bin/fish`` with whatever path fish was
+installed to, if it differs.) Log out, then log in again for the changes
+to take effect.
+
+Use the following command if fish isn’t already added to ``/etc/shells``
+to permit fish to be your login shell:
+
+::
+
+   echo /usr/local/bin/fish | sudo tee -a /etc/shells
+
+To switch your default shell back, you can run ``chsh -s /bin/bash``
+(substituting ``/bin/bash`` with ``/bin/tcsh`` or ``/bin/zsh`` as
+appropriate).
+
+Building
+--------
+
+.. _dependencies-1:
+
+Dependencies
+~~~~~~~~~~~~
+
+Compiling fish requires:
+
+-  a C++11 compiler (g++ 4.8 or later, or clang 3.3 or later)
+-  CMake (version 3.2 or later)
+-  a curses implementation such as ncurses (headers and libraries)
+-  PCRE2 (headers and libraries) - a copy is included with fish
+-  gettext (headers and libraries) - optional, for translation support
+
+Sphinx is also optionally required to build the documentation from a
+cloned git repository.
+
+Additionally, running the test suite requires Python 3.5+ and the pexpect package.
+
+Building from source (all platforms) - Makefile generator
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+To install into ``/usr/local``, run:
+
+.. code:: bash
+
+   mkdir build; cd build
+   cmake ..
+   make
+   sudo make install
+
+The install directory can be changed using the
+``-DCMAKE_INSTALL_PREFIX`` parameter for ``cmake``.
+
+Building from source (macOS) - Xcode
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. code:: bash
+
+   mkdir build; cd build
+   cmake .. -G Xcode
+
+An Xcode project will now be available in the ``build`` subdirectory.
+You can open it with Xcode, or run the following to build and install in
+``/usr/local``:
+
+.. code:: bash
+
+   xcodebuild
+   xcodebuild -scheme install
+
+The install directory can be changed using the
+``-DCMAKE_INSTALL_PREFIX`` parameter for ``cmake``.
+
+Help, it didn’t build!
+~~~~~~~~~~~~~~~~~~~~~~
+
+If fish reports that it could not find curses, try installing a curses
+development package and build again.
+
+On Debian or Ubuntu you want:
+
+::
+
+   sudo apt-get install build-essential cmake ncurses-dev libncurses5-dev libpcre2-dev gettext
+
+On RedHat, CentOS, or Amazon EC2:
+
+::
+
+   sudo yum install ncurses-devel
+
+Contributing Changes to the Code
+--------------------------------
+
+See the `Guide for Developers <CONTRIBUTING.rst>`__.
+
+Contact Us
+----------
+
+Questions, comments, rants and raves can be posted to the official fish
+mailing list at https://lists.sourceforge.net/lists/listinfo/fish-users
+or join us on our `gitter.im
+channel <https://gitter.im/fish-shell/fish-shell>`__. Or use the `fish
+tag on
+Stackoverflow <https://stackoverflow.com/questions/tagged/fish>`__ for
+questions related to fish script and the `fish tag on
+Superuser <https://superuser.com/questions/tagged/fish>`__ for all other
+questions (e.g., customizing colors, changing key bindings).
+
+Found a bug? Have an awesome idea? Please `open an
+issue <https://github.com/fish-shell/fish-shell/issues/new>`__.
+
+.. |Build Status| image:: https://github.com/fish-shell/fish-shell/workflows/C/C++%20CI/badge.svg
+   :target: https://github.com/fish-shell/fish-shell/actions
+.. |Try in browser| image:: https://cdn.rawgit.com/rootnroll/library/assets/try.svg
+   :target: https://rootnroll.com/d/fish-shell/

autoload.cpp

@@ -1,376 +0,0 @@
-/** \file autoload.cpp
-
-The classes responsible for autoloading functions and completions.
-*/
-
-#include "config.h"
-#include "autoload.h"
-#include "wutil.h"
-#include "common.h"
-#include "signal.h"
-#include "env.h"
-#include "exec.h"
-#include <assert.h>
-#include <algorithm>
-
-/* The time before we'll recheck an autoloaded file */
-static const int kAutoloadStalenessInterval = 15;
-
-file_access_attempt_t access_file(const wcstring &path, int mode)
-{
-    //printf("Touch %ls\n", path.c_str());
-    file_access_attempt_t result = {0};
-    struct stat statbuf;
-    if (wstat(path, &statbuf))
-    {
-        result.error = errno;
-    }
-    else
-    {
-        result.mod_time = statbuf.st_mtime;
-        if (waccess(path, mode))
-        {
-            result.error = errno;
-        }
-        else
-        {
-            result.accessible = true;
-        }
-    }
-
-    // Note that we record the last checked time after the call, on the assumption that in a slow filesystem, the lag comes before the kernel check, not after.
-    result.stale = false;
-    result.last_checked = time(NULL);
-    return result;
-}
-
-autoload_t::autoload_t(const wcstring &env_var_name_var, const builtin_script_t * const scripts, size_t script_count) :
-    lock(),
-    env_var_name(env_var_name_var),
-    builtin_scripts(scripts),
-    builtin_script_count(script_count),
-    last_path(),
-    is_loading_set()
-{
-    pthread_mutex_init(&lock, NULL);
-}
-
-autoload_t::~autoload_t()
-{
-    pthread_mutex_destroy(&lock);
-}
-
-void autoload_t::node_was_evicted(autoload_function_t *node)
-{
-    // This should only ever happen on the main thread
-    ASSERT_IS_MAIN_THREAD();
-
-    // Tell ourselves that the command was removed if it was loaded
-    if (! node->is_loaded)
-        this->command_removed(node->key);
-    delete node;
-}
-
-int autoload_t::unload(const wcstring &cmd)
-{
-    return this->evict_node(cmd);
-}
-
-int autoload_t::load(const wcstring &cmd, bool reload)
-{
-    int res;
-    CHECK_BLOCK(0);
-    ASSERT_IS_MAIN_THREAD();
-
-    env_var_t path_var = env_get_string(env_var_name);
-
-    /*
-      Do we know where to look?
-    */
-    if (path_var.empty())
-        return 0;
-
-    /* Check if the lookup path has changed. If so, drop all loaded files. path_var may only be inspected on the main thread. */
-    if (path_var != this->last_path)
-    {
-        this->last_path = path_var;
-        scoped_lock locker(lock);
-        this->evict_all_nodes();
-    }
-
-    /** Warn and fail on infinite recursion. It's OK to do this because this function is only called on the main thread. */
-    if (this->is_loading(cmd))
-    {
-        debug(0,
-              _(L"Could not autoload item '%ls', it is already being autoloaded. "
-                L"This is a circular dependency in the autoloading scripts, please remove it."),
-              cmd.c_str());
-        return 1;
-    }
-
-    /* Mark that we're loading this */
-    is_loading_set.insert(cmd);
-
-    /* Get the list of paths from which we will try to load */
-    std::vector<wcstring> path_list;
-    tokenize_variable_array(path_var, path_list);
-
-    /* Try loading it */
-    res = this->locate_file_and_maybe_load_it(cmd, true, reload, path_list);
-
-    /* Clean up */
-    bool erased = !! is_loading_set.erase(cmd);
-    assert(erased);
-
-    return res;
-}
-
-bool autoload_t::can_load(const wcstring &cmd, const env_vars_snapshot_t &vars)
-{
-    const env_var_t path_var = vars.get(env_var_name);
-    if (path_var.missing_or_empty())
-        return false;
-
-    std::vector<wcstring> path_list;
-    tokenize_variable_array(path_var, path_list);
-    return this->locate_file_and_maybe_load_it(cmd, false, false, path_list);
-}
-
-static bool script_name_precedes_script_name(const builtin_script_t &script1, const builtin_script_t &script2)
-{
-    return wcscmp(script1.name, script2.name) < 0;
-}
-
-void autoload_t::unload_all(void)
-{
-    scoped_lock locker(lock);
-    this->evict_all_nodes();
-}
-
-/** Check whether the given command is loaded. */
-bool autoload_t::has_tried_loading(const wcstring &cmd)
-{
-    scoped_lock locker(lock);
-    autoload_function_t * func = this->get_node(cmd);
-    return func != NULL;
-}
-
-static bool is_stale(const autoload_function_t *func)
-{
-    /** Return whether this function is stale. Internalized functions can never be stale. */
-    return ! func->is_internalized && time(NULL) - func->access.last_checked > kAutoloadStalenessInterval;
-}
-
-autoload_function_t *autoload_t::get_autoloaded_function_with_creation(const wcstring &cmd, bool allow_eviction)
-{
-    ASSERT_IS_LOCKED(lock);
-    autoload_function_t *func = this->get_node(cmd);
-    if (! func)
-    {
-        func = new autoload_function_t(cmd);
-        if (allow_eviction)
-        {
-            this->add_node(func);
-        }
-        else
-        {
-            this->add_node_without_eviction(func);
-        }
-    }
-    return func;
-}
-
-/**
-   This internal helper function does all the real work. By using two
-   functions, the internal function can return on various places in
-   the code, and the caller can take care of various cleanup work.
-
-     cmd: the command name ('grep')
-     really_load: whether to actually parse it as a function, or just check it it exists
-     reload: whether to reload it if it's already loaded
-     path_list: the set of paths to check
-
-     Result: if really_load is true, returns whether the function was loaded. Otherwise returns whether the function existed.
-*/
-bool autoload_t::locate_file_and_maybe_load_it(const wcstring &cmd, bool really_load, bool reload, const wcstring_list_t &path_list)
-{
-    /* Note that we are NOT locked in this function! */
-    size_t i;
-    bool reloaded = 0;
-
-    /* Try using a cached function. If we really want the function to be loaded, require that it be really loaded. If we're not reloading, allow stale functions. */
-    {
-        bool allow_stale_functions = ! reload;
-
-        /* Take a lock */
-        scoped_lock locker(lock);
-
-        /* Get the function */
-        autoload_function_t * func = this->get_node(cmd);
-
-        /* Determine if we can use this cached function */
-        bool use_cached;
-        if (! func)
-        {
-            /* Can't use a function that doesn't exist */
-            use_cached = false;
-        }
-        else if (really_load && ! func->is_placeholder && ! func->is_loaded)
-        {
-            /* Can't use an unloaded function */
-            use_cached = false;
-        }
-        else if (! allow_stale_functions && is_stale(func))
-        {
-            /* Can't use a stale function */
-            use_cached = false;
-        }
-        else
-        {
-            /* I guess we can use it */
-            use_cached = true;
-        }
-
-        /* If we can use this function, return whether we were able to access it */
-        if (use_cached)
-        {
-            return func->is_internalized || func->access.accessible;
-        }
-    }
-    /* The source of the script will end up here */
-    wcstring script_source;
-    bool has_script_source = false;
-
-    /* Whether we found an accessible file */
-    bool found_file = false;
-
-    /* Look for built-in scripts via a binary search */
-    const builtin_script_t *matching_builtin_script = NULL;
-    if (builtin_script_count > 0)
-    {
-        const builtin_script_t test_script = {cmd.c_str(), NULL};
-        const builtin_script_t *array_end = builtin_scripts + builtin_script_count;
-        const builtin_script_t *found = std::lower_bound(builtin_scripts, array_end, test_script, script_name_precedes_script_name);
-        if (found != array_end && ! wcscmp(found->name, test_script.name))
-        {
-            /* We found it */
-            matching_builtin_script = found;
-        }
-    }
-    if (matching_builtin_script)
-    {
-        has_script_source = true;
-        script_source = str2wcstring(matching_builtin_script->def);
-
-        /* Make a node representing this function */
-        scoped_lock locker(lock);
-        autoload_function_t *func = this->get_autoloaded_function_with_creation(cmd, really_load);
-
-        /* This function is internalized */
-        func->is_internalized = true;
-
-        /* It's a fiction to say the script is loaded at this point, but we're definitely going to load it down below. */
-        if (really_load) func->is_loaded = true;
-    }
-
-    if (! has_script_source)
-    {
-        /* Iterate over path searching for suitable completion files */
-        for (i=0; i<path_list.size(); i++)
-        {
-            wcstring next = path_list.at(i);
-            wcstring path = next + L"/" + cmd + L".fish";
-
-            const file_access_attempt_t access = access_file(path, R_OK);
-            if (access.accessible)
-            {
-                /* Found it! */
-                found_file = true;
-
-                /* Now we're actually going to take the lock. */
-                scoped_lock locker(lock);
-                autoload_function_t *func = this->get_node(cmd);
-
-                /* Generate the source if we need to load it */
-                bool need_to_load_function = really_load && (func == NULL || func->access.mod_time != access.mod_time || ! func->is_loaded);
-                if (need_to_load_function)
-                {
-
-                    /* Generate the script source */
-                    wcstring esc = escape_string(path, 1);
-                    script_source = L". " + esc;
-                    has_script_source = true;
-
-                    /* Remove any loaded command because we are going to reload it. Note that this will deadlock if command_removed calls back into us. */
-                    if (func && func->is_loaded)
-                    {
-                        command_removed(cmd);
-                        func->is_placeholder = false;
-                    }
-
-                    /* Mark that we're reloading it */
-                    reloaded = true;
-                }
-
-                /* Create the function if we haven't yet. This does not load it. Do not trigger eviction unless we are actually loading, because we don't want to evict off of the main thread. */
-                if (! func)
-                {
-                    func = get_autoloaded_function_with_creation(cmd, really_load);
-                }
-
-                /* It's a fiction to say the script is loaded at this point, but we're definitely going to load it down below. */
-                if (need_to_load_function) func->is_loaded = true;
-
-                /* Unconditionally record our access time */
-                func->access = access;
-
-                break;
-            }
-        }
-
-        /*
-          If no file or builtin script was found we insert a placeholder function.
-          Later we only research if the current time is at least five seconds later.
-          This way, the files won't be searched over and over again.
-        */
-        if (! found_file && ! has_script_source)
-        {
-            scoped_lock locker(lock);
-            /* Generate a placeholder */
-            autoload_function_t *func = this->get_node(cmd);
-            if (! func)
-            {
-                func = new autoload_function_t(cmd);
-                func->is_placeholder = true;
-                if (really_load)
-                {
-                    this->add_node(func);
-                }
-                else
-                {
-                    this->add_node_without_eviction(func);
-                }
-            }
-            func->access.last_checked = time(NULL);
-        }
-    }
-
-    /* If we have a script, either built-in or a file source, then run it */
-    if (really_load && has_script_source)
-    {
-        if (exec_subshell(script_source, false /* do not apply exit status */) == -1)
-        {
-            /* Do nothing on failure */
-        }
-
-    }
-
-    if (really_load)
-    {
-        return reloaded;
-    }
-    else
-    {
-        return found_file || has_script_source;
-    }
-}

autoload.h

@@ -1,138 +0,0 @@
-/** \file autoload.h
-
-    The classes responsible for autoloading functions and completions.
-*/
-
-#ifndef FISH_AUTOLOAD_H
-#define FISH_AUTOLOAD_H
-
-#include <wchar.h>
-#include <map>
-#include <set>
-#include <list>
-#include "common.h"
-#include "lru.h"
-
-/** A struct responsible for recording an attempt to access a file. */
-struct file_access_attempt_t
-{
-    time_t mod_time; /** The modification time of the file */
-    time_t last_checked; /** When we last checked the file */
-    bool accessible; /** Whether we believe we could access this file */
-    bool stale; /** Whether the access attempt is stale */
-    int error; /** If we could not access the file, the error code */
-};
-
-file_access_attempt_t access_file(const wcstring &path, int mode);
-
-struct autoload_function_t : public lru_node_t
-{
-    autoload_function_t(const wcstring &key) : lru_node_t(key), access(), is_loaded(false), is_placeholder(false), is_internalized(false) { }
-    file_access_attempt_t access; /** The last access attempt */
-    bool is_loaded; /** Whether we have actually loaded this function */
-    bool is_placeholder; /** Whether we are a placeholder that stands in for "no such function". If this is true, then is_loaded must be false. */
-    bool is_internalized; /** Whether this function came from a builtin "internalized" script */
-};
-
-struct builtin_script_t
-{
-    const wchar_t *name;
-    const char *def;
-};
-
-struct builtin_script_t;
-class env_vars_snapshot_t;
-
-/**
-  A class that represents a path from which we can autoload, and the autoloaded contents.
- */
-class autoload_t : private lru_cache_t<autoload_function_t>
-{
-private:
-
-    /** Lock for thread safety */
-    pthread_mutex_t lock;
-
-    /** The environment variable name */
-    const wcstring env_var_name;
-
-    /** Builtin script array */
-    const struct builtin_script_t *const builtin_scripts;
-
-    /** Builtin script count */
-    const size_t builtin_script_count;
-
-    /** The path from which we most recently autoloaded */
-    wcstring last_path;
-
-    /**
-       A table containing all the files that are currently being
-       loaded. This is here to help prevent recursion.
-    */
-    std::set<wcstring> is_loading_set;
-
-    bool is_loading(const wcstring &name) const
-    {
-        return is_loading_set.find(name) != is_loading_set.end();
-    }
-
-    void remove_all_functions(void)
-    {
-        this->evict_all_nodes();
-    }
-
-    bool locate_file_and_maybe_load_it(const wcstring &cmd, bool really_load, bool reload, const wcstring_list_t &path_list);
-
-    virtual void node_was_evicted(autoload_function_t *node);
-
-    autoload_function_t *get_autoloaded_function_with_creation(const wcstring &cmd, bool allow_eviction);
-
-protected:
-    /** Overridable callback for when a command is removed */
-    virtual void command_removed(const wcstring &cmd) { }
-
-public:
-
-    /** Create an autoload_t for the given environment variable name */
-    autoload_t(const wcstring &env_var_name_var, const builtin_script_t *scripts, size_t script_count);
-
-    /** Destructor */
-    virtual ~autoload_t();
-
-    /**
-       Autoload the specified file, if it exists in the specified path. Do
-       not load it multiple times unless its timestamp changes or
-       parse_util_unload is called.
-
-       Autoloading one file may unload another.
-
-       \param cmd the filename to search for. The suffix '.fish' is always added to this name
-       \param on_unload a callback function to run if a suitable file is found, which has not already been run. unload will also be called for old files which are unloaded.
-       \param reload wheter to recheck file timestamps on already loaded files
-    */
-    int load(const wcstring &cmd, bool reload);
-
-    /** Check whether we have tried loading the given command. Does not do any I/O. */
-    bool has_tried_loading(const wcstring &cmd);
-
-    /**
-       Tell the autoloader that the specified file, in the specified path,
-       is no longer loaded.
-
-       \param cmd the filename to search for. The suffix '.fish' is always added to this name
-       \param on_unload a callback function which will be called before (re)loading a file, may be used to unload the previous file.
-       \return non-zero if the file was removed, zero if the file had not yet been loaded
-    */
-    int unload(const wcstring &cmd);
-
-    /**
-       Unloads all files.
-    */
-    void unload_all();
-
-    /** Check whether the given command could be loaded, but do not load it. */
-    bool can_load(const wcstring &cmd, const env_vars_snapshot_t &vars);
-
-};
-
-#endif

benchmarks/benchmarks/external_cmds.fish

@@ -0,0 +1,4 @@
+for i in (seq 2000)
+    command true
+end
+

benchmarks/benchmarks/math.fish

@@ -0,0 +1,3 @@
+for i in (seq 100000)
+    math $i + $i
+end

benchmarks/benchmarks/seq_echo.fish

@@ -0,0 +1,3 @@
+for i in (seq 10000)
+    echo $i
+end

benchmarks/driver.sh

@@ -0,0 +1,29 @@
+#!/bin/sh
+
+if [ "$#" -gt 2 -o "$#" -eq 0 ]; then
+    echo "Usage: driver.sh /path/to/fish [/path/to/other/fish]"
+    exit 1
+fi
+
+FISH_PATH=$1
+FISH2_PATH=$2
+BENCHMARKS_DIR=$(dirname "$0")/benchmarks
+
+for benchmark in "$BENCHMARKS_DIR"/*; do
+    basename "$benchmark"
+    [ -n "$FISH2_PATH" ] && echo "$FISH_PATH"
+    ${FISH_PATH} --print-rusage-self "$benchmark" > /dev/null
+    if [ -n "$FISH2_PATH" ]; then
+        echo "$FISH2_PATH"
+        ${FISH2_PATH} --print-rusage-self "$benchmark" > /dev/null
+    fi
+
+    if command -v hyperfine >/dev/null 2>&1; then
+        if [ -n "$FISH2_PATH" ]; then
+            hyperfine "${FISH_PATH} $benchmark > /dev/null" "${FISH2_PATH} $benchmark > /dev/null"
+        else
+            hyperfine "${FISH_PATH} $benchmark > /dev/null"
+        fi
+    fi
+done
+

build_tools/bin/README.txt

@@ -0,0 +1 @@
+mac_xar_116 is http://mackyle.github.io/xar/, compiled for Mac. It is used by mac_sign_package.sh as a replacement for productsign.

build_tools/build_documentation.sh

@@ -1,134 +0,0 @@
-#!/bin/sh
-
-# This script is run as part of the build process
-
-if test $# -eq 0
-then
-	# Use fish's defaults
-	DOXYFILE=Doxyfile.help
-	INPUTDIR=doc_src
-	OUTPUTDIR=share
-	echo "Using defaults: $0 ${DOXYFILE} ${INPUTDIR} ${OUTPUTDIR}"
-elif test $# -eq 3
-then
-	DOXYFILE="$1"
-	INPUTDIR="$2"
-	OUTPUTDIR="$3"
-else
-	echo "Usage: $0 doxygen_file input_directory output_directory"
-	exit 1
-fi
-
-# Determine which man pages we don't want to generate.
-# on OS X, don't make a man page for open, since we defeat fish's open function on OS X.
-CONDEMNED_PAGES=
-if test `uname` = 'Darwin'; then
-	CONDEMNED_PAGES="$CONDEMNED_PAGES open.1"
-fi
-
-# Helper function to turn a relative path into an absolute path
-resolve_path()
-{
-	D=`command dirname "$1"`
-	B=`command basename "$1"`
-	echo "`cd \"$D\" 2>/dev/null && pwd || echo \"$D\"`/$B"
-}
-
-# Expand relative paths
-DOXYFILE=`resolve_path "$DOXYFILE"`
-INPUTDIR=`resolve_path "$INPUTDIR"`
-OUTPUTDIR=`resolve_path "$OUTPUTDIR"`
-
-echo "      doxygen file: $DOXYFILE"
-echo "   input directory: $INPUTDIR"
-echo "  output directory: $OUTPUTDIR"
-echo "          skipping: $CONDEMNED_PAGES"
-
-# Make sure INPUTDIR is found
-if test ! -d "$INPUTDIR"; then
-	echo >&2 "Could not find input directory '${INPUTDIR}'"
-	exit 1
-fi
-
-# Make sure doxygen is found
-DOXYGENPATH=`command -v doxygen`
-if test -z "$DOXYGENPATH" ; then
-    for i in /usr/local/bin/doxygen /opt/bin/doxygen /Applications/Doxygen.app/Contents/Resources/doxygen ~/Applications/Doxygen.app/Contents/Resources/doxygen ; do
-    	if test -f "$i"; then
-    	    DOXYGENPATH="$i"
-    	    break
-    	fi
-    done
-fi
-
-if test -z "$DOXYGENPATH"; then
-    echo >&2 "doxygen is not installed, so documentation will not be built."
-    exit 0
-fi
-
-# Determine where our output should go
-if ! mkdir -p "${OUTPUTDIR}" ; then
-    echo "Could not create output directory '${OUTPUTDIR}'"
-fi
-
-# Make a temporary directory
-TMPLOC=`mktemp -d -t fish_doc_build_XXXXXX` || { echo >&2 "Could not build documentation because mktemp failed"; exit 1; }
-
-# Copy stuff to the temp directory
-for i in "$INPUTDIR"/*.txt; do
-	INPUTFILE=$TMPLOC/`basename $i .txt`.doxygen
-	echo  "/** \page" `basename $i .txt` > $INPUTFILE
-	cat $i >>$INPUTFILE
-	echo "*/" >>$INPUTFILE
-done
-
-# Make some extra stuff to pass to doxygen
-# Input is kept as . because we cd to the input directory beforehand
-# This prevents doxygen from generating "documentation" for intermediate directories
-DOXYPARAMS=$(cat <<EOF
-PROJECT_NUMBER=2.0.0
-INPUT=.
-OUTPUT_DIRECTORY=$OUTPUTDIR
-QUIET=YES
-EOF
-);
-
-# echo "$DOXYPARAMS"
-
-# Clear out the output directory first
-find "${OUTPUTDIR}" -name "*.1" -delete
-
-# Run doxygen
-cd "$TMPLOC"
-(cat "${DOXYFILE}" ; echo "$DOXYPARAMS";) | "$DOXYGENPATH" - 
-
-# Remember errors
-RESULT=$?
-
-cd "${OUTPUTDIR}/man/man1/"
-if test "$RESULT" = 0 ; then
-
-	# Postprocess the files
-	for i in "$INPUTDIR"/*.txt; do
-		# It would be nice to use -i here for edit in place, but that is not portable 
-		CMD_NAME=`basename "$i" .txt`;
-		sed -e "s/\(.\)\\.SH/\1/" -e "s/$CMD_NAME *\\\\- *\"\(.*\)\"/\1/" "${CMD_NAME}.1" > "${CMD_NAME}.1.tmp"
-		mv "${CMD_NAME}.1.tmp" "${CMD_NAME}.1"
-	done
-	
-	# Erase condemned pages
-	rm -f $CONDEMNED_PAGES
-	
-fi
-
-# Destroy TMPLOC
-echo "Cleaning up '$TMPLOC'"
-rm -Rf "$TMPLOC"
-
-if test "$RESULT" = 0; then
-    # Tell the user what we did
-    echo "Output man pages into '${OUTPUTDIR}'"
-else
-    echo "Doxygen failed. See the output log for details."
-fi
-exit $RESULT

build_tools/cppcheck.rules

@@ -0,0 +1,26 @@
+<?xml version="1.0"?>
+
+<![CDATA[
+<!-- Sadly we can't enable the following two rules since doing so causes false
+     positives in standard header files rather than just project specific
+     source files. If we can find a way to enable these rules by also
+     excluding system include files we should do so.
+<rule version="1">
+    <pattern> wcwidth \(</pattern>
+    <message>
+        <id>wcwidthForbidden</id>
+        <severity>warning</severity>
+        <summary>Always use fish_wcwidth rather than wcwidth.</summary>
+    </message>
+</rule>
+
+<rule version="1">
+    <pattern> wcswidth \(</pattern>
+    <message>
+        <id>wcswidthForbidden</id>
+        <severity>warning</severity>
+        <summary>Always use fish_wcswidth rather than wcswidth.</summary>
+    </message>
+</rule>
+<--!>
+]]>

build_tools/cppcheck.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+cppcheck --std=posix --quiet \
+         --suppressions-list=build_tools/cppcheck.suppressions --inline-suppr \
+         --rule-file=build_tools/cppcheck.rules \
+         --force \
+         ${@:---enable=all ./src/}

build_tools/cppcheck.suppressions

@@ -0,0 +1,15 @@
+// suppress all instances of varFuncNullUB: "Passing NULL after the last typed
+// argument to a variadic function leads to undefined behaviour." That's
+// because all the places we do this are valid and won't cause problems even
+// on a ILP64 platform because we're careful about using NULL rather than 0.
+varFuncNullUB
+// Suppress the warning about unmatched suppressions. At the moment these
+// warnings are emitted even when removing the suppression comment results in
+// the warning being suppressed. In other words this unmatchedSuppression
+// warnings are false positives.
+unmatchedSuppression
+// Suppress this one because it reports assert(condition && "message"), which we use all over the place
+incorrectStringBooleanError
+
+// This is of very little use and pops up *everywhere*.
+useStlAlgorithm

build_tools/description-pak

@@ -1,3 +0,0 @@
-This is the_ridiculous'fish s delightful fork of, fish friendly interactive shell. For more information, visit http://ridiculousfish.com/shell/ .
-
-This installer will install fish, but will not modify your /etc/shells file or your default shell. I trust you know how to do that yourself if you care to!

build_tools/diff_profiles.fish

@@ -0,0 +1,46 @@
+#!/usr/bin/env fish
+#
+# Compares the output of two fish profile runs and emits the time difference between
+# the first and second set of results.
+#
+# Usage: ./diff_profiles.fish profile1.log profile2.log > profile_diff.log
+
+set -l profile1 (cat $argv[1])
+set -l profile2 (cat $argv[2])
+
+set -l line_no 0
+while set -l next_line_no (math $line_no + 1) && set -q profile1[$next_line_no] && set -q profile2[$next_line_no]
+    set line_no $next_line_no
+
+    set -l line1 $profile1[$line_no]
+    set -l line2 $profile2[$line_no]
+
+    if not string match -qr '^\d+\t\d+' $line1
+        echo $line1
+        continue
+    end
+
+    set -l results1 (string match -r '^(\d+)\t(\d+)\s+(.*)' $line1)
+    set -l results2 (string match -r '^(\d+)\t(\d+)\s+(.*)' $line2)
+
+    # times from both files
+    set -l time1 $results1[2..3]
+    set -l time2 $results2[2..3]
+
+    # leftover from both files
+    set -l remainder1 $results1[4]
+    set -l remainder2 $results2[4]
+
+    if not string match -q -- $remainder1 $remainder2
+        echo Mismatch on line $line_no:
+        echo - $remainder1
+        echo + $remainder2
+        exit 1
+    end
+
+    set -l diff
+    set diff[1] (math $time1[1] - $time2[1])
+    set diff[2] (math $time1[2] - $time2[2])
+
+    echo $diff[1] $diff[2] $remainder1
+end

build_tools/find_globals.fish

@@ -0,0 +1,112 @@
+#!/usr/bin/env fish
+
+# Finds global variables by parsing the output of 'nm'
+# for object files in this directory.
+# This was written for macOS nm.
+
+set -l FISH_SOURCE_DIR $argv[1]
+if not test -d "$FISH_SOURCE_DIR"
+    echo "FISH_SOURCE_DIR not given"
+    exit 1
+end
+
+set -g whitelist \
+    # unclear what this is \
+    l_constinit \
+    # hacks to work around missing ncurses strings on mac \
+    sitm_esc ritm_esc dim_esc \
+
+
+# In our nm regex, we are interested in data (dD) and bss (bB) segments.
+set -g nm_regex '^([^ ]+) ([dDbB])'
+
+set -l total_globals 0
+set -l boring_files \
+    fish_key_reader.cpp.o \
+    fish_tests.cpp.o \
+    fish_indent.cpp.o \
+
+
+# return if we should ignore the given symbol name
+function should_ignore
+    set -l symname $argv[1]
+    string match -q '*guard variable for*' $symname
+    and return 0
+    contains $symname $whitelist
+    and return 0
+    return 1
+end
+
+# echo a cleaned-up symbol name, e.g. replacing template gunk
+function cleanup_syname
+    set -l symname $argv[1]
+    set symname (string replace --all 'std::__1::basic_string<wchar_t, std::__1::char_traits<wchar_t>, std::__1::allocator<wchar_t> >' 'wcstring' $symname)
+    set symname (string replace --all 'std::__1::vector<wcstring, std::__1::allocator<wcstring > >' 'wcstring_list_t' $symname)
+    echo $symname
+end
+
+# Output the declaration for a symbol name in a given file.
+function print_decl -a FISH_SOURCE_DIR objfile symname
+    set -l varname (string split '::' $symname)[-1]
+    set -l srcfile (basename $objfile .o)
+    set -l srcpath $FISH_SOURCE_DIR/src/$srcfile
+
+    # A leading underscore indicates a global, strip it.
+    set varname (string replace --regex '^_' '' $varname)
+
+    if not test -f "$srcpath"
+        echo "Could not find $srcpath"
+    end
+    # Guess the variable as the first usage of the name.
+    # Strip everything after the first =.
+    set -l vardecl (egrep -m 1 " $varname\\b" $srcpath | cut -f -1 -d '=' | string trim)
+    if test -z "$vardecl"
+        echo "COULD_NOT_FIND_$varname"
+        return 1
+    end
+    echo $vardecl
+    return 0
+end
+
+# Return if a variable declaration is "thread safe".
+function decl_is_threadsafe
+    set -l vardecl $argv[1]
+    # decls starting with 'const ' or containing ' const ' are assumed safe.
+    string match -q --regex '(^|\\*| )const ' $vardecl
+    and return 0
+
+    # Ordinary types indicating a safe variable.
+    set -l safes relaxed_atomic_bool_t std::mutex std::condition_variable std::once_flag sig_atomic_t
+    for safe in $safes
+        string match -q "*$safe*" $vardecl
+        and return 0
+    end
+
+    # Template types indicate a safe variable.
+    set safes owning_lock mainthread_t std::atomic relaxed_atomic_t latch_t
+    for safe in $safes
+        string match -q "*$safe<*" $vardecl
+        and return 0
+    end
+end
+
+for file in ./**.o
+    set -l filename (basename $file)
+    # Skip boring files.
+    contains $filename $boring_files
+    and continue
+    for line in (nm -p -P -U $file | egrep $nm_regex)
+        set -l matches (string match --regex $nm_regex -- $line)
+        or continue
+        set -l symname (cleanup_syname (echo $matches[2] | c++filt))
+        should_ignore $symname
+        and continue
+        set -l vardecl (print_decl $FISH_SOURCE_DIR $filename $symname)
+        decl_is_threadsafe $vardecl
+        and continue
+        echo $filename $symname $matches[3] ":" $vardecl
+        set total_globals (math $total_globals + 1)
+    end
+end
+
+echo "Total: $total_globals"

build_tools/fish_xgettext.fish

@@ -0,0 +1,60 @@
+#!/usr/bin/env fish
+#
+# Tool to generate messages.pot
+# Extended to replace the old Makefile rule which did not port easily to CMake
+
+# This script was originally motivated to work around a quirk (or bug depending on your viewpoint)
+# of the xgettext command. See https://lists.gnu.org/archive/html/bug-gettext/2014-11/msg00006.html.
+# However, it turns out that even if that quirk did not exist we would still need something like
+# this script to properly extract descriptions. That's because we need to normalize the strings to
+# a format that xgettext will handle correctly. Also, `xgettext -LShell` doesn't correctly extract
+# all the strings we want translated. So we extract and normalize all such strings into a format
+# that `xgettext` can handle.
+
+# Start with the C++ source
+xgettext -k -k_ -kN_ -LC++ --no-wrap -o messages.pot src/*.cpp src/*.h
+
+# This regex handles descriptions for `complete` and `function` statements. These messages are not
+# particularly important to translate. Hence the "implicit" label.
+set -l implicit_regex '(?:^| +)(?:complete|function).*? (?:-d|--description) (([\'"]).+?(?<!\\\\)\\2).*'
+
+# This regex handles explicit requests to translate a message. These are more important to translate
+# than messages which should be implicitly translated.
+set -l explicit_regex '.*\( *_ (([\'"]).+?(?<!\\\\)\\2) *\).*'
+
+# Create temporary directory for these operations. OS X `mktemp` is somewhat restricted, so this block
+# works around that - based on share/functions/funced.fish.
+set -q TMPDIR
+or set -l TMPDIR /tmp
+set -l tmpdir (mktemp -d $TMPDIR/fish.XXXXXX)
+or exit 1
+
+mkdir -p $tmpdir/implicit/share/completions $tmpdir/implicit/share/functions
+mkdir -p $tmpdir/explicit/share/completions $tmpdir/explicit/share/functions
+
+for f in share/config.fish share/completions/*.fish share/functions/*.fish
+    # Extract explicit attempts to translate a message. That is, those that are of the form
+    # `(_ "message")`.
+    string replace --filter --regex $explicit_regex 'echo $1' <$f | fish >$tmpdir/explicit/$f.tmp 2>/dev/null
+    while read description
+        echo 'N_ "'(string replace --all '"' '\\"' -- $description)'"'
+    end <$tmpdir/explicit/$f.tmp >$tmpdir/explicit/$f
+    rm $tmpdir/explicit/$f.tmp
+
+    # Handle `complete` / `function` description messages. The `| fish` is subtle. It basically
+    # avoids the need to use `source` with a command substitution that could affect the current
+    # shell.
+    string replace --filter --regex $implicit_regex 'echo $1' <$f | fish >$tmpdir/implicit/$f.tmp 2>/dev/null
+    while read description
+        # We don't use `string escape` as shown in the next comment because it produces output that
+        # is not parsed correctly by xgettext. Instead just escape double-quotes and quote the
+        # resulting string.
+        echo 'N_ "'(string replace --all '"' '\\"' -- $description)'"'
+    end <$tmpdir/implicit/$f.tmp >$tmpdir/implicit/$f
+    rm $tmpdir/implicit/$f.tmp
+end
+
+xgettext -j -k -kN_ -LShell --from-code=UTF-8 -cDescription --no-wrap -o messages.pot $tmpdir/explicit/share/*/*.fish
+xgettext -j -k -kN_ -LShell --from-code=UTF-8 -cDescription --no-wrap -o messages.pot $tmpdir/implicit/share/*/*.fish
+
+rm -r $tmpdir

build_tools/git_version_gen.sh

@@ -1,31 +1,49 @@
-#!/bin/sh
+#!/usr/bin/env sh
 # Originally from the git sources (GIT-VERSION-GEN)
 # Presumably (C) Junio C Hamano <junkio@cox.net>
 # Reused under GPL v2.0
 # Modified for fish by David Adam <zanchey@ucc.gu.uwa.edu.au>
 
-FBVF=FISH-BUILD-VERSION-FILE
-DEF_VER=2.0.GIT
+set -e
+
+# Find the fish directory as two levels up from script directory.
+FISH_BASE_DIR="$( cd "$( dirname "$( dirname "$0" )" )" && pwd )"
+DEF_VER=unknown
 
 # First see if there is a version file (included in release tarballs),
 # then try git-describe, then default.
 if test -f version
 then
 	VN=$(cat version) || VN="$DEF_VER"
-elif test -d .git -o -f .git && type git >/dev/null
-then
-	VN=$(git describe --tags --dirty 2>/dev/null)
-else
+elif ! VN=$(git -C "$FISH_BASE_DIR" describe --always --dirty 2>/dev/null); then
 	VN="$DEF_VER"
 fi
 
+# If the first param is --stdout, then output to stdout and exit.
+if test "$1" = '--stdout'
+then
+	echo $VN
+    exit 0
+fi
+
+# Set the output directory as either the first param or cwd.
+test -n "$1" && OUTPUT_DIR=$1/ || OUTPUT_DIR=
+FBVF=${OUTPUT_DIR}FISH-BUILD-VERSION-FILE
+
 if test -r $FBVF
 then
-	VC=$(sed -e 's/^FISH_BUILD_VERSION = //' <$FBVF)
+	VC=$(grep -v '^#' $FBVF | tr -d '"' | sed -e 's/^FISH_BUILD_VERSION=//')
 else
-	VC=unset
+	VC="unset"
 fi
+
+# Maybe output the FBVF
+# It looks like FISH_BUILD_VERSION="2.7.1-621-ga2f065e6"
 test "$VN" = "$VC" || {
-	echo >&2 "FISH_BUILD_VERSION = $VN"
-	echo "FISH_BUILD_VERSION = $VN" >$FBVF
+	echo >&2 "FISH_BUILD_VERSION=$VN"
+	echo "FISH_BUILD_VERSION=\"$VN\"" >${FBVF}
 }
+
+# Output the fish-build-version-witness.txt
+# See https://cmake.org/cmake/help/v3.4/policy/CMP0058.html
+date +%s > ${OUTPUT_DIR}fish-build-version-witness.txt

build_tools/iwyu.linux.imp

@@ -0,0 +1,28 @@
+# Map file for the include-what-you-use tool on Linux.
+[
+    { include: ["<bits/fcntl-linux.h>", "private", "<fcntl.h>", "public"] },
+    { include: ["<bits/mman-linux.h>", "private", "<sys/mman.h>", "public"] },
+    { include: ["<bits/socket-linux.h>", "private", "<sys/socket.h>", "public"] },
+    { include: ["<bits/socket_type.h>", "private", "<sys/socket.h>", "public"] },
+    { include: ["<bits/local_lim.h>", "private", "<limits.h>", "public"] },
+    { include: ["<tr1/memory>", "public", "<memory>", "public"] },
+    { include: ["<features.h>", "public", "<stdio.h>", "public"] },
+    { include: ["<features.h>", "public", "<stddef.h>", "public"] },
+    { include: ["<features.h>", "public", "<unistd.h>", "public"] },
+
+    { symbol: ["size_t", "private", "<unistd.h>", "public"] },
+    { symbol: ["size_t", "private", "<stddef.h>", "public"] },
+    { symbol: ["size_t", "private", "<stdlib.h>", "public"] },
+    { symbol: ["intmax_t", "private", "<sys/stdint.h>", "public"] },
+    { symbol: ["intmax_t", "private", "<sys/types.h>", "public"] },
+    { symbol: ["uint32_t", "private", "<sys/stdint.h>", "public"] },
+    { symbol: ["uint32_t", "private", "<sys/types.h>", "public"] },
+    { symbol: ["uint64_t", "private", "<sys/stdint.h>", "public"] },
+    { symbol: ["uint64_t", "private", "<sys/types.h>", "public"] },
+    { symbol: ["uintmax_t", "private", "<sys/stdint.h>", "public"] },
+    { symbol: ["uintmax_t", "private", "<sys/types.h>", "public"] },
+    { symbol: ["clock_gettime", "private", "<sys/time.h>", "public"] },
+    { symbol: ["timespec", "private", "<sys/time.h>", "public"] },
+    { symbol: ["memset", "private", "<string.h>", "public"] },
+    { symbol: ["strerror", "private", "<string.h>", "public"] },
+]

build_tools/iwyu.osx.imp

@@ -0,0 +1,109 @@
+# Map file for the include-what-you-use tool on OS X. For some reason
+# the version installed by HomeBrew doesn't have useful mappings for the
+# system provided headers. This also has mappings for FreeBSD.
+[
+    { include: ["<sys/_pthread/_pthread_once_t.h>", "private", "<pthread.h>", "public"] },
+    { include: ["<sys/_pthread/_pthread_mutex_t.h>", "private", "<pthread.h>", "public"] },
+    { include: ["<sys/_pthread/_pthread_rwlock_t.h>", "private", "<pthread.h>", "public"] },
+    { include: ["<sys/_pthread/_pthread_mutexattr_t.h>", "private", "<pthread.h>", "public"] },
+    { include: ["<sys/_pthread/_pthread_cond_t.h>", "private", "<pthread.h>", "public"] },
+    { include: ["<sys/_pthread/_pthread_t.h>", "private", "<pthread.h>", "public"] },
+    { include: ["<sys/_pthread/_pthread_key_t.h>", "private", "<pthread.h>", "public"] },
+    { include: ["<sys/_pthreadtypes.h>", "private", "<pthread.h>", "public"] },
+    { include: ["<sys/_types/_posix_vdisable.h>", "private", "<pthread.h>", "public"] },
+    { include: ["<sys/_types/_time_t.h>", "private", "<time.h>", "public"] },
+    { include: ["<sys/_types/_suseconds_t.h>", "private", "<time.h>", "public"] },
+    { include: ["<sys/_types/_suseconds_t.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<sys/errno.h>", "private", "<errno.h>", "public"] },
+    { include: ["<sys/unistd.h>", "private", "<unistd.h>", "public"] },
+    { include: ["<_wctype.h>", "private", "<wctype.h>", "public"] },
+    { include: ["<sys/fcntl.h>", "private", "<fcntl.h>", "public"] },
+    { include: ["<sys/_types/_seek_set.h>", "private", "<fcntl.h>", "public"] },
+    { include: ["<sys/_types/_mbstate_t.h>", "private", "<wchar.h>", "public"] },
+    { include: ["<iosfwd>", "private", "<string>", "public"] },
+    { include: ["<sys/_stdint.h>", "private", "<stdint.h>", "public"] },
+    { include: ["<sys/_types/_s_ifmt.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<sys/_types/_size_t.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<sys/_types/_size_t.h>", "private", "<stdlib.h>", "public"] },
+    { include: ["<sys/_types/_mode_t.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<sys/_types/_pid_t.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<sys/_types/_fd_def.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<sys/_types/_fd_isset.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<sys/_types/_fd_set.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<sys/_types/_fd_zero.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<sys/_types/_timeval.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<sys/_types/_uid_t.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<_types/_intmax_t.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<_types/_uintmax_t.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<_types/_uint8_t.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<sys/_types/_int32_t.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<_types/_uint64_t.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<sys/_types/_uintptr_t.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<sys/_types/_dev_t.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<sys/_types/_ino_t.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<sys/_types/_va_list.h>", "private", "<stdio.h>", "public"] },
+    { include: ["<__functional_base>", "private", "<memory>", "public"] },
+    { include: ["<__functional_base>", "private", "<vector>", "public"] },
+    { include: ["<__functional_base>", "private", "<string>", "public"] },
+    { include: ["<__tree>", "private", "<map>", "public"] },
+    { include: ["<__tree>", "private", "<set>", "public"] },
+    { include: ["<_types/_uint32_t.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<sys/_types/_va_list.h>", "private", "<sys/types.h>", "public"] },
+    { include: ["<sys/_types/_sigset_t.h>", "private", "<signal.h>", "public"] },
+    { include: ["<sys/signal.h>", "private", "<signal.h>", "public"] },
+    { include: ["<strings.h>", "private", "<string.h>", "public"] },
+    { include: ["<sys/termios.h>", "private", "<termios.h>", "public"] },
+    { include: ["<sys/_termios.h>", "private", "<termios.h>", "public"] },
+    { include: ["<sys/ttycom.h>", "private", "<termios.h>", "public"] },
+    { include: ["<sys/syslimits.h>", "private", "<limits.h>", "public"] },
+    { include: ["<i386/limits.h>", "private", "<limits.h>", "public"] },
+    { include: ["<sys/limits.h>", "private", "<limits.h>", "public"] },
+    { include: ["<sys/_types/_wint_t.h>", "private", "<stddef.h>", "public"] },
+    { include: ["<sys/_select.h>", "private", "<select.h>", "public"] },
+    { include: ["<sys/cdefs.h>", "private", "<unistd.h>", "public"] },
+    { include: ["<istream>", "private", "<iostream>", "public"] },
+    { include: ["<sys/_endian.h>", "private", "<netinet/in.h>", "public"] },
+    { include: ["<sys/_types/_timespec.h>", "private", "<time.h>", "public"] },
+    { include: ["<sys/_timespec.h>", "private", "<time.h>", "public"] },
+    { include: ["<sys/spawn.h>", "private", "<spawn.h>", "public"] },
+    { include: ["<sys/dirent.h>", "private", "<dirent.h>", "public"] },
+    { include: ["<__mutex_base>", "private", "<mutex>", "public"] },
+    { include: ["<__hash_table>", "private", "<unordered_map>", "public"] },
+    { include: ["<__hash_table>", "private", "<unordered_set>", "public"] },
+#   { include: ["<>", "private", "<>", "public"] },
+
+    { symbol: ["size_t", "private", "<cstddef>", "public"] },
+    { symbol: ["mutex", "private", "<mutex>", "public"] },
+    { symbol: ["sig_atomic_t", "private", "<csignal>", "public"] },
+    { symbol: ["va_end", "private", "<stdarg.h>", "public"] },
+    { symbol: ["va_list", "private", "<stdarg.h>", "public"] },
+    { symbol: ["va_start", "private", "<stdarg.h>", "public"] },
+    { symbol: ["NULL", "private", "<stddef.h>", "public"] },
+    { symbol: ["NULL", "private", "<stdlib.h>", "public"] },
+    { symbol: ["NULL", "private", "<stdio.h>", "public"] },
+    { symbol: ["NULL", "private", "<unistd.h>", "public"] },
+    { symbol: ["off_t", "private", "<unistd.h>", "public"] },
+    { symbol: ["off_t", "private", "<sys/types.h>", "public"] },
+    { symbol: ["size_t", "private", "<stddef.h>", "public"] },
+    { symbol: ["ssize_t", "private", "<stddef.h>", "public"] },
+    { symbol: ["intptr_t", "private", "<unistd.h>", "public"] },
+    { symbol: ["gid_t", "private", "<unistd.h>", "public"] },
+    { symbol: ["uid_t", "private", "<unistd.h>", "public"] },
+    { symbol: ["pid_t", "private", "<unistd.h>", "public"] },
+    { symbol: ["pid_t", "private", "<sys/types.h>", "public"] },
+    { symbol: ["uid_t", "private", "<sys/types.h>", "public"] },
+    { symbol: ["gid_t", "private", "<sys/types.h>", "public"] },
+    { symbol: ["timeval", "private", "<sys/time.h>", "public"] },
+    { symbol: ["__uint32_t", "private", "<stdint.h>", "public"] },
+    { symbol: ["uint32_t", "private", "<stdint.h>", "public"] },
+    { symbol: ["intptr_t", "private", "<stdint.h>", "public"] },
+    { symbol: ["tparm", "private", "<ncurses.h>", "public"] },
+    { symbol: ["tigetflag", "private", "<ncurses.h>", "public"] },
+    { symbol: ["ERR", "private", "<ncurses.h>", "public"] },
+    { symbol: ["OK", "private", "<ncurses.h>", "public"] },
+    { symbol: ["select", "private", "<sys/select.h>", "public"] },
+    { symbol: ["_LIBCPP_VERSION", "private", "<stddef.h>", "public"] },
+    { symbol: ["_LIBCPP_VERSION", "private", "<unistd.h>", "public"] },
+    { symbol: ["MB_CUR_MAX", "private", "<xlocale.h>", "public"] },
+    { symbol: ["MB_CUR_MAX", "private", "<stdlib.h>", "public"] },
+]

build_tools/lint.fish

@@ -0,0 +1,119 @@
+#!/usr/bin/env fish
+#
+# This is meant to be run by "make lint" or "make lint-all". It is not meant to
+# be run directly from a shell prompt.
+#
+
+# We don't include "missingInclude" as that doesn't find our config.h.
+# Missing includes will quickly be found by... compiling the thing anyway.
+set -l cppchecks warning,performance,portability,information #,missingInclude
+set -l cppcheck_args
+set -l c_files
+set -l all no
+set -l kernel_name (uname -s)
+set -l machine_type (uname -m)
+
+argparse a/all p/project= -- $argv
+
+# We only want -D and -I options to be passed thru to cppcheck.
+for arg in $argv
+    if string match -q -- '-D*' $arg
+        set -a cppcheck_args (string split -- ' ' $arg)
+    else if string match -q -- '-I*' $arg
+        set -a cppcheck_args (string split -- ' ' $arg)
+    else if string match -q -- '-iquote*' $arg
+        set -a cppcheck_args (string split -- ' ' $arg)
+    end
+end
+
+# Not sure when this became necessary but without these flags cppcheck no longer works on macOS.
+# It complains that "Cppcheck cannot find all the include files." Adding these include paths should
+# be harmless everywhere else.
+set cppcheck_args $cppcheck_args -I /usr/include -I .
+
+if test "$machine_type" = x86_64
+    set cppcheck_args -D__x86_64__ -D__LP64__ $cppcheck_args
+end
+
+if set -q _flag_all
+    set c_files src/*.cpp
+    set cppchecks "$cppchecks,unusedFunction"
+else
+    # We haven't been asked to lint all the source. If there are uncommitted
+    # changes lint those, else lint the files in the most recent commit.
+    # Select (cached files) (modified but not cached, and untracked files)
+    set -l files (git diff-index --cached HEAD --name-only)
+    set files $files (git ls-files --exclude-standard --others --modified)
+    if not set -q files[1]
+        # No pending changes so lint the files in the most recent commit.
+        set files (git diff-tree --no-commit-id --name-only -r HEAD)
+    end
+
+    # Extract just the C/C++ files that exist.
+    set c_files
+    for file in (string match -r '.*\.c(?:pp)?$' -- $files)
+        test -f $file; and set c_files $c_files $file
+    end
+end
+
+# We now have a list of files to check so run the linters.
+if set -q c_files[1]
+    if type -q include-what-you-use
+        echo
+        echo ========================================
+        echo Running IWYU
+        echo ========================================
+        for c_file in $c_files
+            switch $kernel_name
+                case Darwin FreeBSD
+                    include-what-you-use -Xiwyu --no_default_mappings -Xiwyu \
+                        --mapping_file=build_tools/iwyu.osx.imp --std=c++11 \
+                        $cppcheck_args $c_file 2>&1
+                case Linux
+                    include-what-you-use -Xiwyu --mapping_file=build_tools/iwyu.linux.imp \
+                        $cppcheck_args $c_file 2>&1
+                case '*' # hope for the best
+                    include-what-you-use --std=c++11 $cppcheck_args $c_file 2>&1
+            end
+        end
+    end
+
+    if type -q cppcheck
+        echo
+        echo ========================================
+        echo Running cppcheck
+        echo ========================================
+        build_tools/cppcheck.sh --enable=$cppchecks $c_files 2>&1
+
+        echo
+        echo ========================================
+        echo 'Running `cppcheck --check-config` to identify missing includes and similar problems.'
+        echo 'Ignore unmatchedSuppression warnings as they are probably false positives we'
+        echo 'cannot suppress.'
+        echo ========================================
+        cppcheck $cppcheck_args --check-config $c_files 2>&1
+    end
+
+    if type -q oclint
+        echo
+        echo ========================================
+        echo Running oclint
+        echo ========================================
+        # The stderr to stdout redirection is because oclint, incorrectly writes its final summary
+        # counts of the errors detected to stderr. Anyone running this who wants to capture its
+        # output will expect those messages to be written to stdout.
+        oclint $c_files -- $argv 2>&1
+    end
+
+    if type -q clang-tidy; and set -q _flag_project
+        echo
+        echo ========================================
+        echo Running clang-tidy
+        echo ========================================
+        clang-tidy -p $_flag_project $c_files
+    end
+else
+    echo
+    echo 'WARNING: No C/C++ files to check'
+    echo
+end

build_tools/list_committers_since.fish

@@ -0,0 +1,36 @@
+#! /usr/bin/env fish
+
+set -l TAG $argv[1]
+
+if test -z "$TAG"
+    echo "Tag name required."
+    exit 1
+end
+
+if not contains -- $TAG (git tag)
+    echo "$TAG is not a valid tag name."
+    exit 1
+end
+
+set -l committers_to_tag (mktemp)
+or exit 1
+set -l committers_from_tag (mktemp)
+or exit 1
+
+# You might think it would be better to case-insensitively sort/compare the names
+# to produce a more natural-looking list.
+# Unicode collation tables mean that this is fraught with danger; for example, the
+# "“" character will not case-fold in UTF-8 locales. sort suggests using the C locale!
+
+git log "$TAG" --format="%aN" --reverse | sort -u >$committers_to_tag
+git log "$TAG".. --format="%aN" --reverse | sort -u >$committers_from_tag
+
+echo New committers:
+echo (comm -13 $committers_to_tag $committers_from_tag)','
+
+echo
+
+echo Returning committers:
+echo (comm -12 $committers_to_tag $committers_from_tag)','
+
+rm $committers_to_tag $committers_from_tag

build_tools/littlecheck.py

@@ -0,0 +1,722 @@
+#!/usr/bin/env python
+
+""" Command line test driver. """
+
+from __future__ import unicode_literals
+from __future__ import print_function
+
+import argparse
+from collections import deque
+import datetime
+import io
+import re
+import shlex
+import subprocess
+import sys
+
+try:
+    from itertools import zip_longest
+except ImportError:
+    from itertools import izip_longest as zip_longest
+from difflib import SequenceMatcher
+
+# Directives can occur at the beginning of a line, or anywhere in a line that does not start with #.
+COMMENT_RE = r"^(?:[^#].*)?#\s*"
+
+# A regex showing how to run the file.
+RUN_RE = re.compile(COMMENT_RE + r"RUN:\s+(.*)\n")
+REQUIRES_RE = re.compile(COMMENT_RE + r"REQUIRES:\s+(.*)\n")
+
+# A regex capturing lines that should be checked against stdout.
+CHECK_STDOUT_RE = re.compile(COMMENT_RE + r"CHECK:\s+(.*)\n")
+
+# A regex capturing lines that should be checked against stderr.
+CHECK_STDERR_RE = re.compile(COMMENT_RE + r"CHECKERR:\s+(.*)\n")
+
+SKIP = object()
+
+class Config(object):
+    def __init__(self):
+        # Whether to have verbose output.
+        self.verbose = False
+        # Whether output gets ANSI colorization.
+        self.colorize = False
+        # Whether to show which file was tested.
+        self.progress = False
+
+    def colors(self):
+        """ Return a dictionary mapping color names to ANSI escapes """
+
+        def ansic(n):
+            return "\033[%dm" % n if self.colorize else ""
+
+        return {
+            "RESET": ansic(0),
+            "BOLD": ansic(1),
+            "NORMAL": ansic(39),
+            "BLACK": ansic(30),
+            "RED": ansic(31),
+            "GREEN": ansic(32),
+            "YELLOW": ansic(33),
+            "BLUE": ansic(34),
+            "MAGENTA": ansic(35),
+            "CYAN": ansic(36),
+            "LIGHTGRAY": ansic(37),
+            "DARKGRAY": ansic(90),
+            "LIGHTRED": ansic(91),
+            "LIGHTGREEN": ansic(92),
+            "LIGHTYELLOW": ansic(93),
+            "LIGHTBLUE": ansic(94),
+            "LIGHTMAGENTA": ansic(95),
+            "LIGHTCYAN": ansic(96),
+            "WHITE": ansic(97),
+        }
+
+
+def output(*args):
+    print("".join(args) + "\n")
+
+
+import unicodedata
+
+
+def esc(m):
+    map = {
+        "\n": "\\n",
+        "\\": "\\\\",
+        "'": "\\'",
+        '"': '\\"',
+        "\a": "\\a",
+        "\b": "\\b",
+        "\f": "\\f",
+        "\r": "\\r",
+        "\t": "\\t",
+        "\v": "\\v",
+    }
+    if m in map:
+        return map[m]
+    if unicodedata.category(m)[0] == "C":
+        return "\\x{:02x}".format(ord(m))
+    else:
+        return m
+
+
+def escape_string(s):
+    return "".join(esc(ch) for ch in s)
+
+
+class CheckerError(Exception):
+    """Exception subclass for check line parsing.
+
+    Attributes:
+      line: the Line object on which the exception occurred.
+    """
+
+    def __init__(self, message, line=None):
+        super(CheckerError, self).__init__(message)
+        self.line = line
+
+
+class Line(object):
+    """ A line that remembers where it came from. """
+
+    def __init__(self, text, number, file):
+        self.text = text
+        self.number = number
+        self.file = file
+
+    def __hash__(self):
+        # Chosen by fair diceroll
+        # No, just kidding.
+        # HACK: We pass this to the Sequencematcher, which puts the Checks into a dict.
+        # To force it to match the regexes, we return a hash collision intentionally,
+        # so it falls back on __eq__().
+        #
+        # CheckCmd has the same thing.
+        return 0
+
+    def __eq__(self, other):
+        if other is None:
+            return False
+        if isinstance(other, CheckCmd):
+            return other.regex.match(self.text)
+        if isinstance(other, Line):
+            # We only compare the text here so SequenceMatcher can reshuffle these
+            return self.text == other.text
+        raise NotImplementedError
+
+    def subline(self, text):
+        """ Return a substring of our line with the given text, preserving number and file. """
+        return Line(text, self.number, self.file)
+
+    @staticmethod
+    def readfile(file, name):
+        return [Line(text, idx + 1, name) for idx, text in enumerate(file)]
+
+    def is_empty_space(self):
+        return not self.text or self.text.isspace()
+
+    def escaped_text(self, for_formatting=False):
+        ret = escape_string(self.text.rstrip("\n"))
+        if for_formatting:
+            ret = ret.replace("{", "{{").replace("}", "}}")
+        return ret
+
+
+class RunCmd(object):
+    """A command to run on a given Checker.
+
+    Attributes:
+        args: Unexpanded shell command as a string.
+    """
+
+    def __init__(self, args, line):
+        self.args = args
+        self.line = line
+
+    @staticmethod
+    def parse(line):
+        if not shlex.split(line.text):
+            raise CheckerError("Invalid RUN command", line)
+        return RunCmd(line.text, line)
+
+
+class TestFailure(object):
+    def __init__(self, line, check, testrun, diff=None, lines=[], checks=[]):
+        self.line = line
+        self.check = check
+        self.testrun = testrun
+        self.error_annotation_lines = None
+        self.diff = diff
+        self.lines = lines
+        self.checks = checks
+
+    def message(self):
+        fields = self.testrun.config.colors()
+        fields["name"] = self.testrun.name
+        fields["subbed_command"] = self.testrun.subbed_command
+        if self.line:
+            fields.update(
+                {
+                    "output_file": self.line.file,
+                    "output_lineno": self.line.number,
+                    "output_line": self.line.escaped_text(),
+                }
+            )
+        if self.check:
+            fields.update(
+                {
+                    "input_file": self.check.line.file,
+                    "input_lineno": self.check.line.number,
+                    "input_line": self.check.line.escaped_text(),
+                    "check_type": self.check.type,
+                }
+            )
+        filemsg = "" if self.testrun.config.progress else " in {name}"
+        fmtstrs = ["{RED}Failure{RESET}" + filemsg + ":", ""]
+        if self.line and self.check:
+            fmtstrs += [
+                "  The {check_type} on line {input_lineno} wants:",
+                "    {BOLD}{input_line}{RESET}",
+                "",
+                "  which failed to match line {output_file}:{output_lineno}:",
+                "    {BOLD}{output_line}{RESET}",
+                "",
+            ]
+
+        elif self.check:
+            fmtstrs += [
+                "  The {check_type} on line {input_lineno} wants:",
+                "    {BOLD}{input_line}{RESET}",
+                "",
+                "  but there was no remaining output to match.",
+                "",
+            ]
+        else:
+            fmtstrs += [
+                "  There were no remaining checks left to match {output_file}:{output_lineno}:",
+                "    {BOLD}{output_line}{RESET}",
+                "",
+            ]
+        if self.error_annotation_lines:
+            fields["error_annotation"] = "    ".join(
+                [x.text for x in self.error_annotation_lines]
+            )
+            fields["error_annotation_lineno"] = str(
+                self.error_annotation_lines[0].number
+            )
+            if len(self.error_annotation_lines) > 1:
+                fields["error_annotation_lineno"] += ":" + str(
+                    self.error_annotation_lines[-1].number
+                )
+            fmtstrs += [
+                "  additional output on stderr:{error_annotation_lineno}:",
+                "    {BOLD}{error_annotation}{RESET}",
+            ]
+        if self.diff:
+            fmtstrs += ["  Context:"]
+            lasthi = 0
+            lastcheckline = None
+            for d in self.diff.get_grouped_opcodes():
+                for op, alo, ahi, blo, bhi in d:
+                    color = "{BOLD}"
+                    if op == "replace" or op == "delete":
+                        color = "{RED}"
+                    # We got a new chunk, so we print a marker.
+                    if alo > lasthi:
+                        fmtstrs += [
+                            "    [...] from line "
+                            + str(self.checks[blo].line.number)
+                            + " ("
+                            + self.lines[alo].file
+                            + ":"
+                            + str(self.lines[alo].number)
+                            + "):"
+                        ]
+                    lasthi = ahi
+
+                    # We print one "no more checks" after the last check and then skip any markers
+                    lastcheck = False
+                    for a, b in zip_longest(self.lines[alo:ahi], self.checks[blo:bhi]):
+                        # Clean up strings for use in a format string - double up the curlies.
+                        astr = (
+                            color + a.escaped_text(for_formatting=True) + "{RESET}"
+                            if a
+                            else ""
+                        )
+                        if b:
+                            bstr = (
+                                "'{BLUE}"
+                                + b.line.escaped_text(for_formatting=True)
+                                + "{RESET}'"
+                                + " on line "
+                                + str(b.line.number)
+                            )
+                            lastcheckline = b.line.number
+
+                        if op == "equal":
+                            fmtstrs += ["    " + astr]
+                        elif b and a:
+                            fmtstrs += [
+                                "    "
+                                + astr
+                                + " <= does not match "
+                                + b.type
+                                + " "
+                                + bstr
+                            ]
+                        elif b:
+                            fmtstrs += [
+                                "    "
+                                + astr
+                                + " <= nothing to match "
+                                + b.type
+                                + " "
+                                + bstr
+                            ]
+                        elif not b:
+                            string = "    " + astr
+                            if bhi == len(self.checks):
+                                if not lastcheck:
+                                    string += " <= no more checks"
+                                    lastcheck = True
+                            elif lastcheckline is not None:
+                                string += (
+                                    " <= no check matches this, previous check on line "
+                                    + str(lastcheckline)
+                                )
+                            else:
+                                string += " <= no check matches"
+                            fmtstrs.append(string)
+            fmtstrs.append("")
+        fmtstrs += ["  when running command:", "    {subbed_command}"]
+        return "\n".join(fmtstrs).format(**fields)
+
+    def print_message(self):
+        """ Print our message to stdout. """
+        print(self.message())
+
+
+def perform_substitution(input_str, subs):
+    """Perform the substitutions described by subs to str
+    Return the substituted string.
+    """
+    # Sort our substitutions into a list of tuples (key, value), descending by length.
+    # It needs to be descending because we need to try longer substitutions first.
+    subs_ordered = sorted(subs.items(), key=lambda s: len(s[0]), reverse=True)
+
+    def subber(m):
+        # We get the entire sequence of characters.
+        # Replace just the prefix and return it.
+        text = m.group(1)
+        for key, replacement in subs_ordered:
+            if text.startswith(key):
+                return replacement + text[len(key) :]
+        # No substitution found, so we default to running it as-is,
+        # which will end up running it via $PATH.
+        return text
+
+    return re.sub(r"%(%|[a-zA-Z0-9_-]+)", subber, input_str)
+
+
+def runproc(cmd):
+    """ Wrapper around subprocess.Popen to save typing """
+    PIPE = subprocess.PIPE
+    proc = subprocess.Popen(
+        cmd,
+        stdin=PIPE,
+        stdout=PIPE,
+        stderr=PIPE,
+        shell=True,
+        close_fds=True,  # For Python 2.6 as shipped on RHEL 6
+    )
+    return proc
+
+
+class TestRun(object):
+    def __init__(self, name, runcmd, checker, subs, config):
+        self.name = name
+        self.runcmd = runcmd
+        self.subbed_command = perform_substitution(runcmd.args, subs)
+        self.checker = checker
+        self.subs = subs
+        self.config = config
+
+    def check(self, lines, checks):
+        # Reverse our lines and checks so we can pop off the end.
+        lineq = lines[::-1]
+        checkq = checks[::-1]
+        usedlines = []
+        usedchecks = []
+        mismatches = []
+        while lineq and checkq:
+            line = lineq[-1]
+            check = checkq[-1]
+            if check == line:
+                # This line matched this checker, continue on.
+                usedlines.append(line)
+                usedchecks.append(check)
+                lineq.pop()
+                checkq.pop()
+            elif line.is_empty_space():
+                # Skip all whitespace input lines.
+                lineq.pop()
+            else:
+                usedlines.append(line)
+                usedchecks.append(check)
+                mismatches.append((line, check))
+                # Failed to match.
+                lineq.pop()
+                checkq.pop()
+
+        # Drain empties
+        while lineq and lineq[-1].is_empty_space():
+            lineq.pop()
+
+        # Store the remaining lines for the diff
+        for i in lineq[::-1]:
+            if not i.is_empty_space():
+                usedlines.append(i)
+        # Store remaining checks for the diff
+        for i in checkq[::-1]:
+            usedchecks.append(i)
+
+        # Do a SequenceMatch! This gives us a diff-like thing.
+        diff = SequenceMatcher(a=usedlines, b=usedchecks, autojunk=False)
+        # If there's a mismatch or still lines or checkers, we have a failure.
+        # Otherwise it's success.
+        if mismatches:
+            return TestFailure(
+                mismatches[0][0],
+                mismatches[0][1],
+                self,
+                diff=diff,
+                lines=usedlines,
+                checks=usedchecks,
+            )
+        elif lineq:
+            return TestFailure(
+                lineq[-1], None, self, diff=diff, lines=usedlines, checks=usedchecks
+            )
+        elif checkq:
+            return TestFailure(
+                None, checkq[-1], self, diff=diff, lines=usedlines, checks=usedchecks
+            )
+        else:
+            # Success!
+            return None
+
+    def run(self):
+        """ Run the command. Return a TestFailure, or None. """
+
+        def split_by_newlines(s):
+            """Decode a string and split it by newlines only,
+            retaining the newlines.
+            """
+            return [s + "\n" for s in s.decode("utf-8").split("\n")]
+
+        PIPE = subprocess.PIPE
+        if self.config.verbose:
+            print(self.subbed_command)
+        proc = runproc(self.subbed_command)
+        stdout, stderr = proc.communicate()
+        # HACK: This is quite cheesy: POSIX specifies that sh should return 127 for a missing command.
+        # Technically it's also possible to return it in other conditions.
+        # Practically, that's *probably* not going to happen.
+        status = proc.returncode
+        if status == 127:
+            raise CheckerError("Command could not be found: " + self.subbed_command)
+        if status == 126:
+            raise CheckerError("Command is not executable: " + self.subbed_command)
+
+        # If a test returns 125, we skip it and don't even attempt to compare output.
+        # This is similar to what `git bisect run` does.
+        if status == 125:
+            return SKIP
+
+        outlines = [
+            Line(text, idx + 1, "stdout")
+            for idx, text in enumerate(split_by_newlines(stdout))
+        ]
+        errlines = [
+            Line(text, idx + 1, "stderr")
+            for idx, text in enumerate(split_by_newlines(stderr))
+        ]
+        outfail = self.check(outlines, self.checker.outchecks)
+        errfail = self.check(errlines, self.checker.errchecks)
+        # It's possible that something going wrong on stdout resulted in new
+        # text being printed on stderr. If we have an outfailure, and either
+        # non-matching or unmatched stderr text, then annotate the outfail
+        # with it.
+        if outfail and errfail and errfail.line:
+            outfail.error_annotation_lines = errlines[errfail.line.number - 1 :]
+            # Trim a trailing newline
+            if outfail.error_annotation_lines[-1].text == "\n":
+                del outfail.error_annotation_lines[-1]
+        return outfail if outfail else errfail
+
+
+class CheckCmd(object):
+    def __init__(self, line, checktype, regex):
+        self.line = line
+        self.type = checktype
+        self.regex = regex
+
+    def __hash__(self):
+        # HACK: We pass this to the Sequencematcher, which puts the Checks into a dict.
+        # To force it to match the regexes, we return a hash collision intentionally,
+        # so it falls back on __eq__().
+        #
+        # Line has the same thing.
+        return 0
+
+    def __eq__(self, other):
+        # "Magical" comparison with lines and strings.
+        # Typically I wouldn't use this, but it allows us to check if a line matches any check in a dict or list via
+        # the `in` operator.
+        if other is None:
+            return False
+        if isinstance(other, CheckCmd):
+            return self.regex == other.regex
+        if isinstance(other, Line):
+            return self.regex.match(other.text)
+        if isinstance(other, str):
+            return self.regex.match(other)
+        raise NotImplementedError
+
+    @staticmethod
+    def parse(line, checktype):
+        # type: (Line) -> CheckCmd
+        # Everything inside {{}} is a regular expression.
+        # Everything outside of it is a literal string.
+        # Split around {{...}}. Then every odd index will be a regex, and
+        # evens will be literals.
+        # Note that if {{...}} appears first we will get an empty string in
+        # the split array, so the {{...}} matches are always at odd indexes.
+        bracket_re = re.compile(
+            r"""
+                \{\{   # Two open brackets
+                (.*?)  # Nongreedy capture
+                \}\}   # Two close brackets
+            """,
+            re.VERBOSE,
+        )
+        pieces = bracket_re.split(line.text)
+        even = True
+        re_strings = []
+        for piece in pieces:
+            if even:
+                # piece is a literal string.
+                re_strings.append(re.escape(piece))
+            else:
+                # piece is a regex (found inside {{...}}).
+                # Verify the regex can be compiled.
+                try:
+                    re.compile(piece)
+                except re.error:
+                    raise CheckerError("Invalid regular expression: '%s'" % piece, line)
+                re_strings.append(piece)
+            even = not even
+        # Enclose each piece in a non-capturing group.
+        # This ensures that lower-precedence operators don't trip up catenation.
+        # For example: {{b|c}}d would result in /b|cd/ which is different.
+        # Backreferences are assumed to match across the entire string.
+        re_strings = ["(?:%s)" % s for s in re_strings]
+        # Anchor at beginning and end (allowing arbitrary whitespace), and maybe
+        # a terminating newline.
+        # We need the anchors because Python's match() matches an arbitrary prefix,
+        # not the entire string.
+        re_strings = [r"^\s*"] + re_strings + [r"\s*\n?$"]
+        full_re = re.compile("".join(re_strings))
+        return CheckCmd(line, checktype, full_re)
+
+
+class Checker(object):
+    def __init__(self, name, lines):
+        self.name = name
+        # Helper to yield subline containing group1 from all matching lines.
+        def group1s(regex):
+            for line in lines:
+                m = regex.match(line.text)
+                if m:
+                    yield line.subline(m.group(1))
+
+        # Find run commands.
+        self.runcmds = [RunCmd.parse(sl) for sl in group1s(RUN_RE)]
+        if not self.runcmds:
+            # If no RUN command has been given, fall back to the shebang.
+            if lines[0].text.startswith("#!"):
+                # Remove the "#!" at the beginning, and the newline at the end.
+                self.runcmds = [RunCmd(lines[0].text[2:-1] + " %s", lines[0])]
+            else:
+                raise CheckerError("No runlines ('# RUN') found")
+
+        self.requirecmds = [RunCmd.parse(sl) for sl in group1s(REQUIRES_RE)]
+
+        # Find check cmds.
+        self.outchecks = [
+            CheckCmd.parse(sl, "CHECK") for sl in group1s(CHECK_STDOUT_RE)
+        ]
+        self.errchecks = [
+            CheckCmd.parse(sl, "CHECKERR") for sl in group1s(CHECK_STDERR_RE)
+        ]
+
+
+def check_file(input_file, name, subs, config, failure_handler):
+    """ Check a single file. Return a True on success, False on error. """
+    success = True
+    lines = Line.readfile(input_file, name)
+    checker = Checker(name, lines)
+
+    # Run all the REQUIRES lines first,
+    # if any of them fail it's a SKIP
+    for reqcmd in checker.requirecmds:
+        proc = runproc(
+            perform_substitution(reqcmd.args, subs)
+        )
+        stdout, stderr = proc.communicate()
+        status = proc.returncode
+        if proc.returncode > 0:
+            return SKIP
+
+    # Only then run the RUN lines.
+    for runcmd in checker.runcmds:
+        failure = TestRun(name, runcmd, checker, subs, config).run()
+        if failure:
+            failure_handler(failure)
+            success = False
+    return success
+
+
+def check_path(path, subs, config, failure_handler):
+    with io.open(path, encoding="utf-8") as fd:
+        return check_file(fd, path, subs, config, failure_handler)
+
+
+def parse_subs(subs):
+    """Given a list of input substitutions like 'foo=bar',
+    return a dictionary like {foo:bar}, or exit if invalid.
+    """
+    result = {}
+    for sub in subs:
+        try:
+            key, val = sub.split("=", 1)
+            if not key:
+                print("Invalid substitution %s: empty key" % sub)
+                sys.exit(1)
+            if not val:
+                print("Invalid substitution %s: empty value" % sub)
+                sys.exit(1)
+            result[key] = val
+        except ValueError:
+            print("Invalid substitution %s: equal sign not found" % sub)
+            sys.exit(1)
+    return result
+
+
+def get_argparse():
+    """ Return a littlecheck argument parser. """
+    parser = argparse.ArgumentParser(
+        description="littlecheck: command line tool tester."
+    )
+    parser.add_argument(
+        "-s",
+        "--substitute",
+        type=str,
+        help="Add a new substitution for RUN lines. Example: bash=/bin/bash",
+        action="append",
+        default=[],
+    )
+    parser.add_argument(
+        "-p",
+        "--progress",
+        action="store_true",
+        dest="progress",
+        help="Show the files to be checked",
+        default=False,
+    )
+    parser.add_argument("file", nargs="+", help="File to check")
+    return parser
+
+
+def main():
+    args = get_argparse().parse_args()
+    # Default substitution is %% -> %
+    def_subs = {"%": "%"}
+    def_subs.update(parse_subs(args.substitute))
+
+    failure_count = 0
+    config = Config()
+    config.colorize = sys.stdout.isatty()
+    config.progress = args.progress
+    fields = config.colors()
+
+    for path in args.file:
+        fields["path"] = path
+        if config.progress:
+            print("Testing file {path} ... ".format(**fields), end="")
+            sys.stdout.flush()
+        subs = def_subs.copy()
+        subs["s"] = path
+        starttime = datetime.datetime.now()
+        ret = check_path(path, subs, config, TestFailure.print_message)
+        if not ret:
+            failure_count += 1
+        elif config.progress:
+            endtime = datetime.datetime.now()
+            duration_ms = round((endtime - starttime).total_seconds() * 1000)
+            reason = "ok"
+            color = "{GREEN}"
+            if ret is SKIP:
+                reason = "SKIPPED"
+                color = "{BLUE}"
+            print(
+                (color + "{reason}{RESET} ({duration} ms)").format(
+                    duration=duration_ms, reason=reason, **fields
+                )
+            )
+    sys.exit(failure_count)
+
+
+if __name__ == "__main__":
+    main()

build_tools/mac_notarize.sh

@@ -0,0 +1,99 @@
+#!/usr/bin/env bash
+
+# Helper to notarize an .app.zip or .pkg file.
+# Based on https://www.logcg.com/en/archives/3222.html
+
+set -e
+
+die() { echo "$*" 1>&2 ; exit 1; }
+
+check_status() {
+    echo "STATUS" $1
+}
+
+get_req_uuid() {
+    RESPONSE=$(</dev/stdin)
+    if echo "$RESPONSE" | egrep -q "RequestUUID"; then
+        echo "$RESPONSE" | egrep RequestUUID | awk '{print $3'}
+    elif echo "$RESPONSE" | egrep -q "The upload ID is "; then
+        echo "$RESPONSE" | egrep -p "The upload ID is [-a-z0-9]+" | awk '{print $5}'
+    else
+        die "Could not get Request UUID"
+    fi
+}
+
+INPUT=$1
+AC_USER=$2
+
+test -z "$AC_USER" && die "AC_USER not specified as second param"
+test -z "$INPUT" && die "No path specified"
+test -f "$INPUT" || die "Not a file: $INPUT"
+
+ext="${INPUT##*.}"
+(test "$ext" = "zip" || test "$ext" = "pkg") || die "Unrecognized extension: $ext"
+
+LOGFILE=$(mktemp -t mac_notarize_log)
+AC_PASS="@keychain:AC_PASSWORD"
+echo "Logs at $LOGFILE"
+
+NOTARIZE_UUID=$(xcrun altool --notarize-app \
+                --primary-bundle-id "com.ridiculousfish.fish-shell" \
+                --username "$AC_USER" \
+                --password "$AC_PASS" \
+                --file "$INPUT" 2>&1 |
+                    tee -a "$LOGFILE" |
+                    get_req_uuid)
+
+test -z "$NOTARIZE_UUID" && cat "$LOGFILE" && die "Could not get RequestUUID"
+echo "RequestUUID: $NOTARIZE_UUID"
+
+success=0
+for i in $(seq 20); do
+    echo "Checking progress..."
+    PROGRESS=$(xcrun altool --notarization-info "${NOTARIZE_UUID}" \
+                -u "$AC_USER" \
+                -p "$AC_PASS" 2>&1 |
+                    tee -a "$LOGFILE")
+    echo "${PROGRESS}" | tail -n 1
+
+    if [ $? -ne 0 ] || [[ "${PROGRESS}" =~ "Invalid" ]] ; then
+        echo "Error with notarization. Exiting"
+        break
+    fi
+
+    if ! [[ "${PROGRESS}" =~ "in progress" ]]; then
+        success=1
+        break
+    else
+        echo "Not completed yet. Sleeping for 30 seconds."
+    fi
+    sleep 30
+done
+
+if [ $success -eq 1 ] ; then
+    if test "$ext" = "zip"; then
+        TMPDIR=$(mktemp -d)
+        echo "Extracting to $TMPDIR"
+        unzip -q "$INPUT" -d "$TMPDIR"
+        # Force glob expansion.
+        STAPLE_TARGET="$TMPDIR"/*
+        STAPLE_TARGET=$(echo $STAPLE_TARGET)
+    else
+        STAPLE_TARGET="$INPUT"
+    fi
+    echo "Stapling $STAPLE_TARGET"
+    xcrun stapler staple "$STAPLE_TARGET"
+
+    if test "$ext" = "zip"; then
+        # Zip it back up.
+        INPUT_FULL=$(realpath "$INPUT")
+        rm -f "$INPUT"
+        cd "$(dirname "$STAPLE_TARGET")"
+        zip -r -q "$INPUT_FULL" $(basename "$STAPLE_TARGET")
+    fi
+fi
+echo "Processed $INPUT"
+
+if test "$ext" = "zip"; then
+    spctl -a -v "$STAPLE_TARGET"
+fi

build_tools/mac_sign_package.sh

@@ -0,0 +1,122 @@
+#!/usr/bin/env bash
+
+# This codesigns a Mac .pkg (installer) file.
+# Normally we could use `productsign` but that no longer produces
+# installers compatible with 10.11.
+# See https://github.com/fish-shell/fish-shell/issues/7656
+#
+# So instead we use the flow described here:
+#   http://users.wfu.edu/cottrell/productsign/productsign_linux.html
+#
+# This script expects the following:
+#
+# 1. A variable $MAC_PRODUCTSIGN_CERTS_DIR pointing at a directory containing files cert00, cert01, cert02
+# 2. A variable $MAC_PRODUCTSIGN_P12_FILE containing the "Mac Developer ID Installer" keychain item, exported as p12. See below.
+
+die() { echo "$*" 1>&2 ; exit 1; }
+
+# Exit on error.
+set -e
+
+# Our input package file.
+INPUT_PKG=$(realpath $1)
+test -f "$INPUT_PKG" || die "${INPUT_PKG} not a valid package"
+
+# Find where our mac_xar_116 binary is.
+XAR_116="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"/bin/mac_xar_116
+
+# Here's what we need to be set.
+test -f "${MAC_PRODUCTSIGN_P12_FILE}" || die "MAC_PRODUCTSIGN_P12_FILE not set or not a p12 file"
+test -d "${MAC_PRODUCTSIGN_CERTS_DIR}" || die "MAC_PRODUCTSIGN_CERTS_DIR not set or not a directory"
+test -f "${MAC_PRODUCTSIGN_CERTS_DIR}/cert00" \
+    && test -f "${MAC_PRODUCTSIGN_CERTS_DIR}/cert01" \
+    && test -f "${MAC_PRODUCTSIGN_CERTS_DIR}/cert02" \
+    || die "MAC_PRODUCTSIGN_CERTS_DIR does not contain cert00, cert01, cert02"
+test -x "${XAR_116}" || die "mac_xar_116 binary not found or executable at ${XAR_116}"
+
+TMP=$(mktemp -d)
+KEYFILE="${TMP}/key.pem"
+DIGFILE="${TMP}/digestinfo.dat"
+SIGFILE="${TMP}/signature.dat"
+
+set -x
+
+openssl pkcs12 -in "${MAC_PRODUCTSIGN_P12_FILE}" -nodes | openssl rsa -out "${KEYFILE}"
+test -f "${KEYFILE}" || die "openssl did not create key.pem"
+SIGSIZE=$(openssl dgst -sign "${KEYFILE}" -binary < /dev/null | wc -c | xargs)
+
+# Prepare data for signing.
+${XAR_116} --sign -f ${INPUT_PKG} --digestinfo-to-sign "${DIGFILE}" \
+    --sig-size "${SIGSIZE}" \
+    --cert-loc "${MAC_PRODUCTSIGN_CERTS_DIR}/cert00" \
+    --cert-loc "${MAC_PRODUCTSIGN_CERTS_DIR}/cert01" \
+    --cert-loc "${MAC_PRODUCTSIGN_CERTS_DIR}/cert02"
+
+# Create the signature.
+openssl rsautl -sign -inkey "${KEYFILE}" -in "${DIGFILE}" -out "${SIGFILE}"
+
+# Add it to the archive, in place, then move it back.
+${XAR_116} --inject-sig "${SIGFILE}" -f "${INPUT_PKG}"
+
+# Remove all our junk.
+rm -rf "${TMP}"
+
+# Check the signature!
+pkgutil --check-signature "${INPUT_PKG}"
+
+# The following is taken from http://users.wfu.edu/cottrell/productsign/productsign_linux.html
+# Saved here for posterity.
+
+# Signing a Mac OS X package on Linux
+
+# Premises
+
+# You are a software developer who's at home on Linux but you want to produce builds of your software for other platforms, including Mac OS X.
+# You've already figured out cross-compilation. And in regard to OS X you've figured out how to build a (flat) pkg file on Linux – or if not, you can do so quite quickly by looking at the bomutils doc: https://github.com/hogliux/bomutils.
+# You are grudgingly willing to pay the Apple tax (the fee for becoming a registered developer) so that you can get a certificate with which to sign your package, in order that your gentle users don't get off-putting messages from Gatekeeper.
+# But you're wondering how to sign your package without having to use Apple's productsign on a Mac.
+# If you match on all points, we're in business! Here's the drill as I have figured it out. You will need: openssl, recent xar (see below), and one-time access to an actual Mac.
+
+# Procedure
+
+# Step 0: Build your program and create an OS X pkg file (xar archive). This you will do (on Linux) whenever you want to create a new release or snapshot.
+
+# Step 1: This is a one-time step to be performed on a Mac. There may be a way around it, but I'm not aware of one. Please let me know if you're cleverer than I when it comes to certificates and all that. But anyway, follow the Apple directions for installing your developer certificate(s) on OS X, and use productsign to sign your package on the Mac – just this once! (Copy it across from Linux.) And then, before leaving the Mac, open Keychain Access and find your developer cert, the one with "Developer ID Installer" in its title (it should have a private key tucked under it). Highlight it and select "Export items" under the File menu to save as a p12 file. Copy your signed package and the exported p12 file (let's say it's called certs.p12) to your Linux box.
+
+# Step 2: Back on Linux you're going to need a reasonably recent version of xar, specifically 1.6.1 or higher to support signing. Arch Linux installs xar 1.6.1 if you do pacman -S xar. Fedora's dnf install xar gets version 1.5, which won't do the job. I don't know about other distros, but if need be you can find the source for xar 1.6.1 at http://mackyle.github.io/xar/. Anyway, here's another one-time step: you'll extract the certs you need from the pkg file that you signed on the Mac, and the private key from the p12 file you exported from Keychain Access. (You'll need the passphrase that you set on the p12 when exporting it, so I hope you haven't forgotten that.)
+
+# I'll assume (unimaginatively) that your package is called foo.pkg.
+
+# # extract the certs from signed foo.pkg
+# mkdir certs
+# xar -f foo.pkg --extract-certs certs
+# You should find certs00, certs01 and probably certs02 in the certs directory. Perhaps more.
+
+# # extract the private key from certs.p12 (requires passphrase)
+# openssl pkcs12 -in certs.p12 -nodes | openssl rsa -out key.pem
+# At this point you have the materials to sign future versions of your package natively on Linux. I'll now assume that a new unsigned foo.pkg is sitting in a directory containing the key.pem generated above and also the certs subdirectory created above. So now (with many thanks to mackyle!) you do:
+
+# PKG=foo.pkg
+
+# # determine the size of the signature
+# : | openssl dgst -sign key.pem -binary | wc -c > siglen.txt
+
+# # prepare data for signing -- may have to adjust depending
+# # on the contents of the certs subdir in your case
+# xar --sign -f $PKG --digestinfo-to-sign digestinfo.dat \
+#   --sig-size `cat siglen.txt` \
+#   --cert-loc certs/cert00 \
+#   --cert-loc certs/cert01 \
+#   --cert-loc certs/cert02
+
+# # create the signature
+# openssl rsautl -sign -inkey key.pem -in digestinfo.dat \
+#  -out signature.dat
+
+# # stuff it into the archive
+# xar --inject-sig signature.dat -f $PKG
+
+# # and clean up
+# rm -f signature.dat digestinfo.dat siglen.txt
+# From this point on, just build your package on Linux and sign it on Linux using xar along with the certs and key that you got from the Mac.
+

build_tools/make_csv_completions.fish

@@ -1,8 +0,0 @@
-#!/usr/bin/env fish
-#
-# This file produces command specific completions for csv. Meant to be executed
-# from the root directory (so the completions get put in the right place).
-
-. build_tools/make_vcs_completions_generic.fish
-
-write_completions csv >share/completions/csv.fish

build_tools/make_darcs_completions.fish

@@ -1,12 +0,0 @@
-#!/usr/bin/env fish
-#
-# This file produces command specific completions for darcs. Meant to be 
-# executed from the root directory (so the completions get put in the right 
-# place).
-
-. build_tools/make_vcs_completions_generic.fish
-
-set darcs_comp 'complete -c darcs -n "not __fish_use_subcommand" -a "(test -f _darcs/prefs/repos; and cat _darcs/prefs/repos)" --description "Darcs repo"'
-set darcs_comp $darcs_comp 'complete -c darcs -a "test predist boringfile binariesfile" -n "contains setpref (commandline -poc)" --description "Set the specified option" -x'
-
-write_completions darcs $darcs_comp >share/completions/darcs.fish

build_tools/make_deb.sh

@@ -1,18 +0,0 @@
-#!/bin/sh
-
-# Terminate on error
-set -e
-
-sudo rm -Rf /tmp/fishfish
-mkdir /tmp/fishfish
-git archive --format=tar fish_fish | tar -x -C /tmp/fishfish
-mkdir /tmp/fishfish/doc-pak
-cp README INSTALL CHANGELOG release_notes.html /tmp/fishfish/doc-pak/
-cp build_tools/description-pak /tmp/fishfish/
-cd /tmp/fishfish
-autoconf
-./configure
-make -j 3
-sudo checkinstall --default --pakdir ~/fish_built/ --pkgversion 0.9 make install
-mv ~/fish_built/fishfish_0.9-1_i386.deb ~/fish_built/fishfish_0.9_i386.deb
-

build_tools/make_hg_completions.fish

@@ -1,8 +0,0 @@
-#!/usr/bin/env fish
-#
-# This file produces command specific completions for hg. Meant to be executed
-# from the root directory (so the completions get put in the right place).
-
-. build_tools/make_vcs_completions_generic.fish
-
-write_completions hg >share/completions/hg.fish

build_tools/make_pkg.sh

@@ -1,30 +1,47 @@
-#!/bin/sh
+#!/usr/bin/env bash
 
-VERSION=`sed -E -n 's/^.*PACKAGE_VERSION "([0-9.]+)"/\1/p' osx/config.h`
+# Script to produce an OS X installer .pkg and .app(.zip)
+
+VERSION=$(git describe --always --dirty 2>/dev/null)
 if test -z "$VERSION" ; then
-  echo "Could not get version from osx/config.h"
-  exit 1
+  echo "Could not get version from git"
+  if test -f version; then
+    VERSION=$(cat version)
+  fi
 fi
 
 echo "Version is $VERSION"
 
 set -x
 
-make distclean
-rm -Rf /tmp/fish_pkg
-
 #Exit on error
 set -e
 
-mkdir -p /tmp/fish_pkg/root /tmp/fish_pkg/intermediates /tmp/fish_pkg/dst
-xcodebuild install -scheme install_tree -configuration Release DSTROOT=/tmp/fish_pkg/root/
-pkgbuild --scripts build_tools/osx_package_scripts --root /tmp/fish_pkg/root/ --identifier 'com.ridiculousfish.fish-shell-pkg' --version "$VERSION"  /tmp/fish_pkg/intermediates/fish.pkg
+# Respect MAC_CODESIGN_ID, or default for ad-hoc.
+# Note the :- means "or default" and the following - is the value.
+MAC_CODESIGN_ID=${MAC_CODESIGN_ID:--}
 
-productbuild  --package-path /tmp/fish_pkg/intermediates --distribution build_tools/osx_distribution.xml --resources build_tools/osx_package_resources/ ~/fish_built/fish.pkg
+PKGDIR=$(mktemp -d)
 
+SRC_DIR=$PWD
+OUTPUT_PATH=${FISH_ARTEFACT_PATH:-~/fish_built}
+
+mkdir -p "$PKGDIR/build" "$PKGDIR/root" "$PKGDIR/intermediates" "$PKGDIR/dst"
+{ cd "$PKGDIR/build" && cmake -DMAC_INJECT_GET_TASK_ALLOW=OFF -DCMAKE_BUILD_TYPE=RelWithDebInfo -DWITH_GETTEXT=OFF -DCMAKE_OSX_ARCHITECTURES='arm64;x86_64' -DMAC_CODESIGN_ID="${MAC_CODESIGN_ID}" "$SRC_DIR" && make VERBOSE=1 -j 12 && env DESTDIR="$PKGDIR/root/" make install; }
+pkgbuild --scripts "$SRC_DIR/build_tools/osx_package_scripts" --root "$PKGDIR/root/" --identifier 'com.ridiculousfish.fish-shell-pkg' --version "$VERSION" "$PKGDIR/intermediates/fish.pkg"
+productbuild  --package-path "$PKGDIR/intermediates" --distribution "$SRC_DIR/build_tools/osx_distribution.xml" --resources "$SRC_DIR/build_tools/osx_package_resources/" "$OUTPUT_PATH/fish-$VERSION.pkg"
+
+# Here is the historical way to sign the installer package.
+# But when run on macOS 11.1, the resulting installers don't work on 10.11.
+# So we have our own script instead. See issue #7656.
+# Also see https://developer.apple.com/forums/thread/664842
+# If/when productsign is fixed to support 10.11, we can switch back to this.
+# MAC_PRODUCTSIGN_ID=${MAC_PRODUCTSIGN_ID:--}
+# productsign --sign "${MAC_PRODUCTSIGN_ID}" "$OUTPUT_PATH/fish-$VERSION.pkg" "$OUTPUT_PATH/fish-$VERSION-signed.pkg" && mv "$OUTPUT_PATH/fish-$VERSION-signed.pkg" "$OUTPUT_PATH/fish-$VERSION.pkg"
+
+"$SRC_DIR/build_tools/mac_sign_package.sh" "$OUTPUT_PATH/fish-$VERSION.pkg"
 
 # Make the app
-xcodebuild -scheme fish.app -configuration Release DSTROOT=/tmp/fish_app/
-rm -f ~/fish_built/fish.app.zip
-cd DerivedData/fish/Build/Products/Release/
-zip -r ~/fish_built/fish.app.zip fish.app
+{ cd "$PKGDIR/build" && make signed_fish_macapp && zip -r "$OUTPUT_PATH/fish-$VERSION.app.zip" fish.app; }
+
+rm -r "$PKGDIR"

build_tools/make_svn_completions.fish

@@ -1,8 +0,0 @@
-#!/usr/bin/env fish
-#
-# This file produces command specific completions for svn. Meant to be executed
-# from the root directory (so the completions get put in the right place).
-
-. build_tools/make_vcs_completions_generic.fish
-
-write_completions svn >share/completions/svn.fish

build_tools/make_tarball.sh

@@ -2,57 +2,70 @@
 
 # Script to generate a tarball
 # We use git to output a tree. But we also want to build the user documentation
-# and put that in the tarball, so that nobody needs to have doxygen installed
+# and put that in the tarball, so that nobody needs to have sphinx installed
 # to build it.
+# Outputs to $FISH_ARTEFACT_PATH or ~/fish_built by default
 
 # Exit on error
 set -e
 
-# We wil generate a tarball with a prefix "fish"
+# We wil generate a tarball with a prefix "fish-VERSION"
 # git can do that automatically for us via git-archive
-# but to get the documentation in, we need to make a symlink called "fish"
+# but to get the documentation in, we need to make a symlink called "fish-VERSION"
 # and tar from that, so that the documentation gets the right prefix
 
+# We need GNU tar as that supports the --mtime and --transform options
+TAR=notfound
+for try in tar gtar gnutar; do
+  if $try -Pcf /dev/null --mtime now /dev/null >/dev/null 2>&1; then
+    TAR=$try
+    break
+  fi
+done
+
+if [ "$TAR" = "notfound" ]; then
+  echo 'No suitable tar (supporting --mtime) found as tar/gtar/gnutar in PATH'
+  exit 1
+fi
+
 # Get the current directory, which we'll use for symlinks
 wd="$PWD"
 
-# The name of the prefix, which is the directory that you get when you untar
-prefix="fish"
-
 # Get the version from git-describe
-VERSION=`git describe --tags --dirty 2>/dev/null`
-prefix="$prefix-$VERSION"
+VERSION=$(git describe --dirty 2>/dev/null)
+
+# The name of the prefix, which is the directory that you get when you untar
+prefix="fish-$VERSION"
 
 # The path where we will output the tar file
-path=~/fish_built/$prefix.tar
+# Defaults to ~/fish_built
+path=${FISH_ARTEFACT_PATH:-~/fish_built}/$prefix.tar
 
 # Clean up stuff we've written before
-rm -f "$path" "$path".gz
+rm -f "$path" "$path".xz
 
 # git starts the archive
-git archive --format=tar --prefix="$prefix"/ master > "$path"
+git archive --format=tar --prefix="$prefix"/ HEAD > "$path"
 
-# tarball out the documentation, generate a configure script and version file
-# Don't use autoreconf since it invokes commands that may not be installed, like aclocal
-# Don't run autoheader since configure.ac runs it. autoconf is enough.
-autoconf
-./configure --with-doxygen
-make user_doc share/man
-echo $VERSION > version
-cd /tmp
-rm -f "$prefix"
-ln -s "$wd" "$prefix"
-TAR_APPEND="gnutar --append --file=$path --mtime=now --owner=0 --group=0 --mode=g+w,a+rX"
-$TAR_APPEND --no-recursion "$prefix"/user_doc
-$TAR_APPEND "$prefix"/user_doc/html "$prefix"/share/man
-$TAR_APPEND "$prefix"/version
-$TAR_APPEND "$prefix"/configure "$prefix"/config.h.in
-rm -f "$prefix"/version
-rm -f "$prefix"
+# tarball out the documentation, generate a version file
+PREFIX_TMPDIR=$(mktemp -d)
+cd "$PREFIX_TMPDIR"
+echo "$VERSION" > version
+cmake "$wd"
+make doc
 
-# gzip it
-gzip "$path"
+TAR_APPEND="$TAR --append --file=$path --mtime=now --owner=0 --group=0 \
+  --mode=g+w,a+rX --transform s/^/$prefix\//"
+$TAR_APPEND --no-recursion user_doc
+$TAR_APPEND user_doc/html user_doc/man
+$TAR_APPEND version
+
+cd -
+rm -r "$PREFIX_TMPDIR"
+
+# xz it
+xz "$path"
 
 # Output what we did, and the sha1 hash
-echo "Tarball written to $path".gz
-openssl sha1 "$path".gz
+echo "Tarball written to $path".xz
+openssl dgst -sha256 "$path".xz

build_tools/make_vcs_completions.fish

@@ -1,9 +0,0 @@
-#!/usr/bin/env fish
-#
-# This file produces command specific completions for hg, darcs and a
-# few other vcs systems.
-
-build_tools/make_darcs_completions.fish
-build_tools/make_hg_completions.fish
-build_tools/make_svn_completions.fish
-build_tools/make_csv_completions.fish

build_tools/make_vcs_completions_generic.fish

@@ -1,229 +0,0 @@
-#!/usr/bin/env fish
-#
-# This file provides generic functions for generating specific completions for 
-# hg, darcs and a few other vcs systems. It uses the fact that all these 
-# systems have a somewhat uniform command line help mechanism.
-#
-
-function cap
-	set res (echo $argv |cut -c 1|tr a-z A-Z)(echo $argv |cut -c 2-)
-	echo $res
-end
-
-#
-# Escapes the single quote (') character and removes trailing whitespace from $argv
-#
-
-function esc
-	echo $argv | sed -e "s/\(['\\\]\)/\\\\\1/g" | sed -e 's/ *$//' | sed -e 's/     .*//'
-end
-
-
-#
-# This function formats a list of completion information into a set of fish completions
-#
-# The first argument is the condition string, which will be copied to
-# the resulting commandline verbatim
-#
-# Remaining arguments are tab separated lists of completion
-# information. Each list contains four elements, the short switch, the
-# long switch, the argument and the description.
-#
-
-function complete_from_list
-
-	set condition $argv[1]
-	set -e argv[1]
-
-	for j in $argv
-		set exploded (echo $j|tr \t \n)
-		set short $exploded[1]
-		set long $exploded[2]
-		set arg $exploded[3]
-		set desc (cap (esc $exploded[4]))
-
-		set str
-
-		switch $short
-			case '-?'
-				set str $str -s (printf "%s\n" $short|cut -c 2)
-		end
-
-		switch $long
-			case '--?*'
-				set str $str -l (printf "%s\n" $long|cut -c 3-)
-		end
-
-		switch $arg
-			case '=DIRECTORY' ' dir'
-				set str $str -x -a "'(__fish_complete_directories (commandline -ct))'"
-
-			case '=COMMAND'
-				set str $str -x -a "'(__fish_complete_command)'"
-
-			case '=USERNAME' ' <user>'
-				set str $str -x -a "'(__fish_complete_users)'"
-
-			case '=FILENAME' '=FILE' ' <file>'
-				set str $str -r
-
-			case ' arg'
-				set str $str -x
-
-			case ' (*):'
-				 set str $str -x -a \'(echo $arg| sed -e "s/ (\(.*\)):/\1/" |tr '/' ' ')\'
-
-			case '?*'
-				set str $str -x
-				if not set -q unknown
-					set -g unknown
-				end
-				if not contains $arg $unknown
-					echo "Don't know how to handle arguments of type '$arg'" >&2
-					set unknown $unknown $arg
-				end
-		end
-
-		switch $desc
-			case '?*'
-				set str $str --description \'$desc\'
-		end
-
-		echo complete -c $cmd $condition $str
-
-	end
-
-end
-
-
-function write_completions
-
-	set -g cmd $argv[1]; or return 1
-
-	echo "Making completions for $cmd" >&2
-
-
-	echo '
-#
-# Completions for the '$cmd' command
-# This file was autogenerated by the file make_vcs_completions.fish
-# which is shipped with the fish source code.
-#
-
-#
-# Completions from commandline
-#
-'
-	set -e argv[1]
-
-	while count $argv >/dev/null
-		echo $argv[1]
-		set -e argv[1]
-	end
-
-
-	eval "function cmd; $cmd \$argv; end"
-
-	set -l cmd_str
-
-	switch $cmd
-		case svn
-
-		function list_subcommand
-			set cmd1 '\([^ ]*\)'
-			set cmd2 '\([^,)]*\)'
-			set cmdn '\(, \([^,)]*\)\|\)'
-			set svn_re '^    *'$cmd1'\( ('$cmd2$cmdn$cmdn')\|\).*$'
-			cmd help|sed -ne 's/'$svn_re'/\1\n\3\n\5\n\7/p'| grep .
-		end
-
-		function list_subcommand_help
-			set short_exp '\(-.\|\)'
-			set long_exp '\(--[^ =,]*\)'
-			set arg_exp '\(\|[= ][^ ][^ ]*\)'
-			set desc_exp '\([\t ]*:[\t ]*\|\)\([^ ].*[^.]\)'
-			set re "^ *$short_exp  *$long_exp$arg_exp  *$desc_exp\(\|\\.\)\$"
-			cmd help $argv | sed -n -e 's/'$re'/\1\t\2\t\3\t\5/p'
-		end
-
-		for i in (list_subcommand)
-
-			set desc (cmd help $i|head -n 3| sed -e 's/usage:.*//'| tr \n \ | sed -e 's/[^:]*: *\(.*[^.]\)\(\|\\.\)$/\1/')
-			set desc (esc $desc)
-			set cmd_str $cmd_str "-a $i --description '$desc'"
-		end
-
-		case cvs
-
-		function list_subcommand
-			cmd --help-commands 2>| sed -n -e 's/^   *\([^ ][^ ]*\) .*$/\1/p'
-		end
-
-		set short_exp '\(-.\)'
-		set arg_exp '\(\| [^ \t][^ \t]*\)'
-		set desc_exp '\([\t ]*:[\t ]*\|\)\([^ ].*\)'
-		set -g re '^[ \t]*'$short_exp$arg_exp'[ \t]*'$desc_exp'$'
-
-		function list_subcommand_help
-#'s/^[ \t]*\(-.\)[ \t]\([^- \t][^ \t]*\)*[ \t]*\([^-].*\)$/\1\t\2\t\3/p'
-
-			cmd -H $argv 2>| sed -n -e 's/'$re'/\1\t\t\2\t\4/p'
-		end
-
-		echo '
-#
-# Global switches
-#
-'
-
-		complete_from_list "-n '__fish_use_subcommand'" (cmd --help-options 2>| sed -n -e 's/'$re'/\1\t\t\2\t\4/p')
-
-		set cmd_str_internal (cmd --help-commands 2>| sed -n -e 's/^  *\([^ ][^ ]*\)[\t ]*\([^ ].*\)$/\1\t\2/p')
-		for i in $cmd_str_internal
-			set exploded (echo $i|tr \t \n)
-			set cmd_str $cmd_str "-a $exploded[1] --description '"(esc $exploded[2])"'"
-		end
-
-		case '*'
-
-		function list_subcommand
-			cmd help | sed -n -e 's/^  *\([^ ][^ ]*\) .*$/\1/p'
-		end
-
-		function list_subcommand_help
-			set -l short_exp '\(-.\|\)\( [^ -][^ ]*\|\)'
-			set -l long_exp '\(--[^ =,]*\)'
-			set -l arg_exp '\(\|[= ][^ ][^ ]*\)'
-			set -l desc_exp '\([\t ]*:[\t ]*\|\)\([^ ].*[^.]\)'
-			set -l re "^ *$short_exp  *$long_exp$arg_exp  *$desc_exp\(\|\\.\)\$"
-
-			cmd help $argv | sed -n -e 's/'$re'/\1\t\3\t\4\t\6/p'
-		end
-
-		set cmd_str (cmd help | sed -n -e 's/^  *\([^ ][^ ]*\)[\t ]*\([^ ].*[^.]\)\(\|\\.\)$/-a \1 --description \'\2\'/p')
-
-	end
-
-	echo '
-#
-# subcommands
-#
-'
-
-	printf "complete -c $cmd -n '__fish_use_subcommand' -x %s\n" $cmd_str
-
-	for i in (list_subcommand)
-
-		echo '
-
-#
-# Completions for the \''$i'\' subcommand
-#
-'
-
-		complete_from_list "-n 'contains \\'$i\\' (commandline -poc)'" (list_subcommand_help $i)
-	end
-
-	echo \n\n
-
-end

build_tools/osx_package_resources/welcome.rtf

@@ -1,11 +1,12 @@
-{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf370
-{\fonttbl\f0\fswiss\fcharset0 Helvetica;\f1\fnil\fcharset0 Monaco;}
+{\rtf1\ansi\ansicpg1252\cocoartf1485\cocoasubrtf410
+{\fonttbl\f0\fnil\fcharset0 HelveticaNeue;\f1\fnil\fcharset0 Menlo-Regular;}
 {\colortbl;\red255\green255\blue255;}
+{\*\expandedcolortbl;\csgenericrgb\c100000\c100000\c100000;}
 {\info
 {\author dlkfjslfjsfdlkfk}}\margl1440\margr1440\vieww10800\viewh8400\viewkind0
-\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\pardirnatural
+\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\pardirnatural\partightenfactor0
 
-\f0\fs30 \cf0 The fish shell is a smart and user friendly command line shell. For more information, visit {\field{\*\fldinst{HYPERLINK "http://fishshell.com"}}{\fldrslt http://fishshell.com}}.\
+\f0\fs30 \cf0 Fish is a smart and user friendly command line shell. For more information, visit {\field{\*\fldinst{HYPERLINK "https://fishshell.com"}}{\fldrslt https://fishshell.com}}\
 \
 fish will be installed into
 \f1\fs26 /usr/local/
@@ -13,7 +14,7 @@ fish will be installed into
 \f1\fs26 /etc/shells
 \f0\fs30  if necessary.\
 \
-Your default shell will 
+Your default shell will
 \i not
 \i0  be changed. To make fish your default, run:\
 \

build_tools/osx_package_scripts/postinstall

@@ -1,5 +1,3 @@
 #!/bin/sh -x
 
 ./add-shell /usr/local/bin/fish > /tmp/fish_postinstall_output.log
-killall fishd || true
-

build_tools/pexpect_helper.py

@@ -0,0 +1,339 @@
+"""pexpect_helper provides a wrapper around the pexpect module.
+
+This module exposes a single class SpawnedProc, which wraps pexpect.spawn().
+This exposes a pseudo-tty, which fish or another process may talk to.
+The send() function may be used to send data to fish, and the expect_* family
+of functions may be used to match what is output to the tty.
+
+Example usage:
+  sp = SpawnedProc() # this launches fish
+  sp.expect_prompt() # wait for a prompt
+  sp.sendline("echo hello world")
+  sp.expect_prompt("hello world")
+
+"""
+
+from __future__ import print_function
+
+import inspect
+import os
+import os.path
+import re
+import sys
+import time
+import pexpect
+
+# Default timeout for failing to match.
+TIMEOUT_SECS = 5
+
+UNEXPECTED_SUCCESS = object()
+
+def get_prompt_re(counter):
+    """ Return a regular expression for matching a with a given prompt counter. """
+    return re.compile(
+        r"""(?:\r\n?|^)   # beginning of line
+            (?:\x1b[\d\[KB(m]*)* # optional colors
+            (?:\[.\]\ )?  # optional vi mode prompt
+         """
+        + (r"prompt\ %d>" % counter)  # prompt with counter
+        + r"""
+            (?:\x1b[\d\[KB(m]*)* # optional colors
+        """,
+        re.VERBOSE,
+    )
+
+
+def get_callsite():
+    """ Return a triple (filename, line_number, line_text) of the call site location. """
+    callstack = inspect.getouterframes(inspect.currentframe())
+    for f in callstack:
+        if inspect.getmodule(f.frame) is not Message.MODULE:
+            return (os.path.basename(f.filename), f.lineno, f.code_context)
+    return ("Unknown", -1, "")
+
+
+def escape(s):
+    """ Escape the string 's' to make it human-understandable. """
+    res = []
+    for c in s:
+        if c == "\n":
+            res.append("\\n")
+        elif c == "\r":
+            res.append("\\r")
+        elif c == "\t":
+            res.append("\\t")
+        elif c.isprintable():
+            res.append(c)
+        else:
+            res.append("\\x{:02x}".format(ord(c)))
+    return "".join(res)
+
+
+def pexpect_error_type(err):
+    """ Return a human-readable description of a pexpect error type. """
+    if isinstance(err, pexpect.EOF):
+        return "EOF"
+    elif isinstance(err, pexpect.TIMEOUT):
+        return "timeout"
+    elif err is UNEXPECTED_SUCCESS:
+        return "unexpected success"
+    else:
+        return "unknown error"
+
+
+class Message(object):
+    """Some text either sent-to or received-from the spawned proc.
+
+    Attributes:
+        dir: the message direction, either DIR_INPUT or DIR_OUTPUT
+        filename: the name of the file from which the message was sent
+        text: the text of the messages
+        when: a timestamp of when the message was sent
+    """
+
+    # Input is input into fish shell ("sent data").
+    DIR_INPUT = " INPUT"
+
+    # Output means output from fish shell ("received data").
+    DIR_OUTPUT = "OUTPUT"
+
+    MODULE = sys.modules[__name__]
+
+    def __init__(self, dir, text, when):
+        """ Construct from a direction, message text and timestamp. """
+        self.dir = dir
+        self.filename, self.lineno, _ = get_callsite()
+        self.text = text
+        self.when = when
+
+    @staticmethod
+    def sent_input(text, when):
+        """ Return an input message with the given text. """
+        return Message(Message.DIR_INPUT, text, when)
+
+    @staticmethod
+    def received_output(text, when):
+        """ Return a output message with the given text. """
+        return Message(Message.DIR_OUTPUT, text, when)
+
+
+class SpawnedProc(object):
+    """A process, talking to our ptty. This wraps pexpect.spawn.
+
+    Attributes:
+        colorize: whether error messages should have ANSI color escapes
+        messages: list of Message sent and received, in-order
+        start_time: the timestamp of the first message, or None if none yet
+        spawn: the pexpect.spawn value
+        prompt_counter: the index of the prompt. This cooperates with the fish_prompt
+            function to ensure that each printed prompt is distinct.
+    """
+
+    def __init__(self, name="fish", timeout=TIMEOUT_SECS, env=os.environ.copy(), **kwargs):
+        """Construct from a name, timeout, and environment.
+
+        Args:
+            name: the name of the executable to launch, as a key into the
+                  environment dictionary. By default this is 'fish' but may be
+                  other executables.
+            timeout: A timeout to pass to pexpect. This indicates how long to wait
+                     before giving up on some expected output.
+            env: a string->string dictionary, describing the environment variables.
+        """
+        if name not in env:
+            raise ValueError("'name' variable not found in environment" % name)
+        exe_path = env.get(name)
+        self.colorize = sys.stdout.isatty()
+        self.messages = []
+        self.start_time = None
+        self.spawn = pexpect.spawn(exe_path, env=env, encoding="utf-8", timeout=timeout, **kwargs)
+        self.spawn.delaybeforesend = None
+        self.prompt_counter = 0
+
+    def time_since_first_message(self):
+        """ Return a delta in seconds since the first message, or 0 if this is the first. """
+        now = time.monotonic()
+        if not self.start_time:
+            self.start_time = now
+        return now - self.start_time
+
+    def send(self, s):
+        """Cover over pexpect.spawn.send().
+        Send the given string to the tty, returning the number of bytes written.
+        """
+        res = self.spawn.send(s)
+        when = self.time_since_first_message()
+        self.messages.append(Message.sent_input(s, when))
+        return res
+
+    def sendline(self, s):
+        """Cover over pexpect.spawn.sendline().
+        Send the given string + linesep to the tty, returning the number of bytes written.
+        """
+        return self.send(s + os.linesep)
+
+    def expect_re(self, pat, pat_desc=None, unmatched=None, shouldfail=False, **kwargs):
+        """Cover over pexpect.spawn.expect().
+        Consume all "new" output of self.spawn until the given pattern is matched, or
+        the timeout is reached.
+        Note that output between the current position and the location of the match is
+        consumed as well.
+        The pattern is typically a regular expression in string form, but may also be
+        any of the types accepted by pexpect.spawn.expect().
+        If the 'unmatched' parameter is given, it is printed as part of the error message
+        of any failure.
+        On failure, this prints an error and exits.
+        """
+        try:
+            self.spawn.expect(pat, **kwargs)
+            when = self.time_since_first_message()
+            self.messages.append(
+                Message.received_output(self.spawn.match.group(), when)
+            )
+            # When a match is found,
+            # spawn.match is the MatchObject that produced it.
+            # This can be used to check what exactly was matched.
+            if shouldfail:
+                err = UNEXPECTED_SUCCESS
+                if not pat_desc:
+                    pat_desc = str(pat)
+                self.report_exception_and_exit(pat_desc, unmatched, err)
+            return self.spawn.match
+        except pexpect.ExceptionPexpect as err:
+            if shouldfail:
+                return True
+            if not pat_desc:
+                pat_desc = str(pat)
+            self.report_exception_and_exit(pat_desc, unmatched, err)
+
+    def expect_str(self, s, **kwargs):
+        """ Cover over expect_re() which accepts a literal string. """
+        return self.expect_re(re.escape(s), **kwargs)
+
+    def expect_prompt(self, *args, increment=True, **kwargs):
+        """Convenience function which matches some text and then a prompt.
+        Match the given positional arguments as expect_re, and then look
+        for a prompt.
+        If increment is set, then this should be a new prompt and the prompt counter
+        should be bumped; otherwise this is not a new prompt.
+        Returns None on success, and exits on failure.
+        Example:
+           sp.sendline("echo hello world")
+           sp.expect_prompt("hello world")
+        """
+        if args:
+            self.expect_re(*args, **kwargs)
+        if increment:
+            self.prompt_counter += 1
+        self.expect_re(
+            get_prompt_re(self.prompt_counter),
+            pat_desc="prompt %d" % self.prompt_counter,
+        )
+
+    def report_exception_and_exit(self, pat, unmatched, err):
+        """Things have gone badly.
+        We have an exception 'err', some pexpect.ExceptionPexpect.
+        Report it to stdout, along with the offending call site.
+        If 'unmatched' is set, print it to stdout.
+        """
+        colors = self.colors()
+        failtype = pexpect_error_type(err)
+        fmtkeys = {"failtype": failtype, "pat": escape(pat)}
+        fmtkeys.update(**colors)
+
+        filename, lineno, code_context = get_callsite()
+        fmtkeys["filename"] = filename
+        fmtkeys["lineno"] = lineno
+        fmtkeys["code"] = "\n".join(code_context)
+
+        if unmatched:
+            print(
+                "{RED}Error: {NORMAL}{BOLD}{unmatched}{RESET}".format(
+                    unmatched=unmatched, **fmtkeys
+                )
+            )
+        print(
+            "{RED}Failed to match pattern:{NORMAL} {BOLD}{pat}{RESET}".format(**fmtkeys)
+        )
+        print(
+            "{filename}:{lineno}: {BOLD}{failtype}{RESET} from {code}".format(**fmtkeys)
+        )
+
+        print("")
+        print("{CYAN}Escaped buffer:{RESET}".format(**colors))
+        print(escape(self.spawn.before))
+        print("")
+        if sys.stdout.isatty():
+            print(
+                "{CYAN}When written to the tty, this looks like:{RESET}".format(
+                    **colors
+                )
+            )
+            print("{CYAN}<-------{RESET}".format(**colors))
+            sys.stdout.write(self.spawn.before)
+            sys.stdout.flush()
+            print("{RESET}\n{CYAN}------->{RESET}".format(**colors))
+
+        print("")
+
+        # Show the last 10 messages.
+        print("Last 10 messages:")
+        delta = None
+        for m in self.messages[-10:]:
+            etext = escape(m.text)
+            timestamp = m.when * 1000.0
+            # Use relative timestamps and add a sign.
+            # This assumes a max length of 10^10 milliseconds (115 days) for the initial timestamp,
+            # and 11.5 days for the delta.
+            if delta:
+                timestamp -= delta
+                timestampstr = "{timestamp:+10.2f} ms".format(timestamp=timestamp)
+            else:
+                timestampstr = "{timestamp:10.2f} ms".format(timestamp=timestamp)
+            delta = m.when * 1000.0
+            dir = m.dir
+            print(
+                "{dir} {timestampstr} (Line {lineno}): {BOLD}{etext}{RESET}".format(
+                    dir=m.dir,
+                    timestampstr=timestampstr,
+                    filename=m.filename,
+                    lineno=m.lineno,
+                    etext=etext,
+                    **colors
+                )
+            )
+        print("")
+        sys.exit(1)
+
+    def sleep(self, secs):
+        """ Cover over time.sleep(). """
+        time.sleep(secs)
+
+    def colors(self):
+        """ Return a dictionary mapping color names to ANSI escapes """
+
+        def ansic(n):
+            """ Return either an ANSI escape sequence for a color, or empty string. """
+            return "\033[%dm" % n if self.colorize else ""
+
+        return {
+            "RESET": ansic(0),
+            "BOLD": ansic(1),
+            "NORMAL": ansic(39),
+            "BLACK": ansic(30),
+            "RED": ansic(31),
+            "GREEN": ansic(32),
+            "YELLOW": ansic(33),
+            "BLUE": ansic(34),
+            "MAGENTA": ansic(35),
+            "CYAN": ansic(36),
+            "LIGHTGRAY": ansic(37),
+            "DARKGRAY": ansic(90),
+            "LIGHTRED": ansic(91),
+            "LIGHTGREEN": ansic(92),
+            "LIGHTYELLOW": ansic(93),
+            "LIGHTBLUE": ansic(94),
+            "LIGHTMAGENTA": ansic(95),
+            "LIGHTCYAN": ansic(96),
+            "WHITE": ansic(97),
+        }

build_tools/style.fish

@@ -0,0 +1,110 @@
+#!/usr/bin/env fish
+#
+# This runs C++ files and fish scripts (*.fish) through their respective code
+# formatting programs.
+#
+set -l git_clang_format no
+set -l c_files
+set -l fish_files
+set -l python_files
+set -l all no
+
+if test "$argv[1]" = --all
+    set all yes
+    set -e argv[1]
+end
+
+if set -q argv[1]
+    echo "Unexpected arguments: '$argv'"
+    exit 1
+end
+
+if test $all = yes
+    set -l files (git status --porcelain --short --untracked-files=all | sed -e 's/^ *[^ ]* *//')
+    if set -q files[1]
+        echo
+        echo You have uncommitted changes. Cowardly refusing to restyle the entire code base.
+        echo
+        exit 1
+    end
+    set c_files src/*.h src/*.cpp src/*.c
+    set fish_files share/**.fish
+    set python_files {doc_src,share,tests}/**.py
+else
+    # We haven't been asked to reformat all the source. If there are uncommitted changes reformat
+    # those using `git clang-format`. Else reformat the files in the most recent commit.
+    # Select (cached files) (modified but not cached, and untracked files)
+    set -l files (git diff-index --cached HEAD --name-only) (git ls-files --exclude-standard --others --modified)
+    if set -q files[1]
+        set git_clang_format yes
+    else
+        # No pending changes so lint the files in the most recent commit.
+        set files (git diff-tree --no-commit-id --name-only -r HEAD)
+    end
+
+    # Extract just the C/C++ files that exist.
+    set c_files
+    for file in (string match -r '^.*\.(?:c|cpp|h)$' -- $files)
+        test -f $file; and set c_files $c_files $file
+    end
+    # Extract just the fish files.
+    set fish_files (string match -r '^.*\.fish$' -- $files)
+    set python_files (string match -r '^.*\.py$' -- $files)
+end
+
+set -l red (set_color red)
+set -l green (set_color green)
+set -l blue (set_color blue)
+set -l normal (set_color normal)
+
+# Run the C++ reformatter if we have any C++ files.
+if set -q c_files[1]
+    if test $git_clang_format = yes
+        if type -q git-clang-format
+            echo === Running "$red"git-clang-format"$normal"
+            git add $c_files
+            git-clang-format
+        else
+            echo
+            echo 'WARNING: Cannot find git-clang-format command'
+            echo
+        end
+    else if type -q clang-format
+        echo === Running "$red"clang-format"$normal"
+        for file in $c_files
+            cp $file $file.new # preserves mode bits
+            clang-format $file >$file.new
+            if cmp --quiet $file $file.new
+                rm $file.new
+            else
+                echo $file was NOT correctly formatted
+                mv $file.new $file
+            end
+        end
+    else
+        echo
+        echo 'WARNING: Cannot find clang-format command'
+        echo
+    end
+end
+
+# Run the fish reformatter if we have any fish files.
+if set -q fish_files[1]
+    if not type -q fish_indent
+        make fish_indent
+        set PATH . $PATH
+    end
+    echo === Running "$green"fish_indent"$normal"
+    fish_indent -w -- $fish_files
+end
+
+if set -q python_files[1]
+    if not type -q black
+        echo
+        echo Please install "`black`" to style python
+        echo
+    else
+        echo === Running "$blue"black"$normal"
+        black $python_files
+    end
+end

build_tools/ubsan.blacklist

@@ -0,0 +1,3 @@
+# Ubuntu Xenial (used for Travis CI builds) ships libstdc++ 5.4.0 which contains undefined behaviour
+# See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63345
+object-size:*bits/stl_tree.h

builtin.h

@@ -1,182 +0,0 @@
-/** \file builtin.h
-  Prototypes for functions for executing builtin functions.
-*/
-
-#ifndef FISH_BUILTIN_H
-#define FISH_BUILTIN_H
-
-#include <wchar.h>
-
-#include "util.h"
-#include "io.h"
-#include "common.h"
-
-class parser_t;
-
-enum
-{
-    COMMAND_NOT_BUILTIN,
-    BUILTIN_REGULAR,
-    BUILTIN_FUNCTION
-}
-;
-
-/**
-   Error message on missing argument
-*/
-#define BUILTIN_ERR_MISSING _( L"%ls: Expected argument\n" )
-
-/**
-   Error message on invalid combination of options
-*/
-#define BUILTIN_ERR_COMBO _( L"%ls: Invalid combination of options\n" )
-
-/**
-   Error message on invalid combination of options
-*/
-#define BUILTIN_ERR_COMBO2 _( L"%ls: Invalid combination of options,\n%ls\n" )
-
-/**
-   Error message on multiple scope levels for variables
-*/
-#define BUILTIN_ERR_GLOCAL _( L"%ls: Variable scope can only be one of universal, global and local\n" )
-
-/**
-   Error message for specifying both export and unexport to set/read
-*/
-#define BUILTIN_ERR_EXPUNEXP _( L"%ls: Variable can't be both exported and unexported\n" )
-
-/**
-   Error message for unknown switch
-*/
-#define BUILTIN_ERR_UNKNOWN  _( L"%ls: Unknown option '%ls'\n" )
-
-/**
-   Error message for invalid character in variable name
-*/
-#define BUILTIN_ERR_VARCHAR _( L"%ls: Invalid character '%lc' in variable name. Only alphanumerical characters and underscores are valid in a variable name.\n" )
-
-/**
-   Error message for invalid (empty) variable name
-*/
-#define BUILTIN_ERR_VARNAME_ZERO _( L"%ls: Variable name can not be the empty string\n" )
-
-/**
-   Error message when second argument to for isn't 'in'
-*/
-#define BUILTIN_FOR_ERR_IN _( L"%ls: Second argument must be 'in'\n" )
-
-/**
-   Error message for insufficient number of arguments
-*/
-#define BUILTIN_FOR_ERR_COUNT _( L"%ls: Expected at least two arguments, got %d\n")
-
-#define BUILTIN_FOR_ERR_NAME _( L"%ls: '%ls' is not a valid variable name\n" )
-
-/** Error messages for 'else if' */
-#define BUILTIN_ELSEIF_ERR_COUNT _( L"%ls: can only take 'if' and then another command as an argument\n")
-#define BUILTIN_ELSEIF_ERR_ARGUMENT _( L"%ls: any second argument must be 'if'\n")
-
-/**
-   Error message when too many arguments are supplied to a builtin
-*/
-#define BUILTIN_ERR_TOO_MANY_ARGUMENTS _( L"%ls: Too many arguments\n" )
-
-/**
-   Error message when block types mismatch in the end builtin, e.g. 'begin; end for'
-*/
-#define BUILTIN_END_BLOCK_MISMATCH _( L"%ls: Block mismatch: '%ls' vs. '%ls'\n" )
-
-/**
-   Error message for unknown block type in the end builtin, e.g. 'begin; end beggin'
-*/
-#define BUILTIN_END_BLOCK_UNKNOWN _( L"%ls: Unknown block type '%ls'\n" )
-
-#define BUILTIN_ERR_NOT_NUMBER _( L"%ls: Argument '%ls' is not a number\n" )
-
-/** Get the string used to represent stdout and stderr */
-const wcstring &get_stdout_buffer();
-const wcstring &get_stderr_buffer();
-
-/** Output an error */
-void builtin_show_error(const wcstring &err);
-
-/**
-   Kludge. Tells builtins if output is to screen
-*/
-extern int builtin_out_redirect;
-
-/**
-   Kludge. Tells builtins if error is to screen
-*/
-extern int builtin_err_redirect;
-
-
-/**
-   Initialize builtin data.
-*/
-void builtin_init();
-
-/**
-   Destroy builtin data.
-*/
-void builtin_destroy();
-
-/**
-  Is there a builtin command with the given name?
-*/
-int builtin_exists(const wcstring &cmd);
-
-/**
-  Execute a builtin command
-
-  \param parser The parser being used
-  \param argv Array containing the command and parameters
-  of the builtin.  The list is terminated by a
-  null pointer. This syntax resembles the syntax
-  for exec.
-  \param io the io redirections to perform on this builtin.
-
-  \return the exit status of the builtin command
-*/
-int builtin_run(parser_t &parser, const wchar_t * const *argv, const io_chain_t &io);
-
-/** Returns a list of all builtin names */
-wcstring_list_t builtin_get_names(void);
-
-/** Insert all builtin names into list. */
-void builtin_get_names(std::vector<completion_t> &list);
-
-/**
-   Pushes a new set of input/output to the stack. The new stdin is supplied, a new set of output strings is created.
-*/
-void builtin_push_io(parser_t &parser, int stdin_fd);
-
-/**
-   Pops a set of input/output from the stack. The output strings are destroued, but the input file is not closed.
-*/
-void builtin_pop_io(parser_t &parser);
-
-
-/**
-   Return a one-line description of the specified builtin.
-*/
-wcstring builtin_get_desc(const wcstring &b);
-
-
-/**
-   Slightly kludgy function used with 'complete -C' in order to make
-   the commandline builtin operate on the string to complete instead
-   of operating on whatever is to be completed.
-*/
-const wchar_t *builtin_complete_get_temporary_buffer();
-
-
-/**
-   Run the __fish_print_help function to obtain the help information
-   for the specified command.
-*/
-
-wcstring builtin_help_get(parser_t &parser, const wchar_t *cmd);
-
-#endif

builtin_commandline.cpp

@@ -1,646 +0,0 @@
-/** \file builtin_commandline.c Functions defining the commandline builtin
-
-Functions used for implementing the commandline builtin.
-
-*/
-#include "config.h"
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <wchar.h>
-#include <wctype.h>
-#include <sys/types.h>
-#include <termios.h>
-#include <signal.h>
-
-#include "fallback.h"
-#include "util.h"
-
-#include "wutil.h"
-#include "builtin.h"
-#include "common.h"
-#include "wgetopt.h"
-#include "reader.h"
-#include "proc.h"
-#include "parser.h"
-#include "tokenizer.h"
-#include "input_common.h"
-#include "input.h"
-
-#include "parse_util.h"
-
-/**
-   Which part of the comandbuffer are we operating on
-*/
-enum
-{
-    STRING_MODE=1, /**< Operate on entire buffer */
-    JOB_MODE, /**< Operate on job under cursor */
-    PROCESS_MODE, /**< Operate on process under cursor */
-    TOKEN_MODE /**< Operate on token under cursor */
-}
-;
-
-/**
-   For text insertion, how should it be done
-*/
-enum
-{
-    REPLACE_MODE=1, /**< Replace current text */
-    INSERT_MODE, /**< Insert at cursor position */
-    APPEND_MODE /**< Insert at end of current token/command/buffer */
-}
-;
-
-/**
-   Pointer to what the commandline builtin considers to be the current
-   contents of the command line buffer.
- */
-static const wchar_t *current_buffer=0;
-/**
-   What the commandline builtin considers to be the current cursor
-   position.
- */
-static size_t current_cursor_pos = (size_t)(-1);
-
-/**
-   Returns the current commandline buffer.
-*/
-static const wchar_t *get_buffer()
-{
-    return current_buffer;
-}
-
-/**
-   Returns the position of the cursor
-*/
-static size_t get_cursor_pos()
-{
-    return current_cursor_pos;
-}
-
-
-/**
-   Replace/append/insert the selection with/at/after the specified string.
-
-   \param begin beginning of selection
-   \param end end of selection
-   \param insert the string to insert
-   \param append_mode can be one of REPLACE_MODE, INSERT_MODE or APPEND_MODE, affects the way the test update is performed
-*/
-static void replace_part(const wchar_t *begin,
-                         const wchar_t *end,
-                         const wchar_t *insert,
-                         int append_mode)
-{
-    const wchar_t *buff = get_buffer();
-    size_t out_pos = get_cursor_pos();
-
-    wcstring out;
-
-    out.append(buff, begin - buff);
-
-    switch (append_mode)
-    {
-        case REPLACE_MODE:
-        {
-
-            out.append(insert);
-            out_pos = wcslen(insert) + (begin-buff);
-            break;
-
-        }
-        case APPEND_MODE:
-        {
-            out.append(begin, end-begin);
-            out.append(insert);
-            break;
-        }
-        case INSERT_MODE:
-        {
-            long cursor = get_cursor_pos() -(begin-buff);
-            out.append(begin, cursor);
-            out.append(insert);
-            out.append(begin+cursor, end-begin-cursor);
-            out_pos +=  wcslen(insert);
-            break;
-        }
-    }
-    out.append(end);
-    reader_set_buffer(out, out_pos);
-}
-
-/**
-   Output the specified selection.
-
-   \param begin start of selection
-   \param end  end of selection
-   \param cut_at_cursor whether printing should stop at the surrent cursor position
-   \param tokenize whether the string should be tokenized, printing one string token on every line and skipping non-string tokens
-*/
-static void write_part(const wchar_t *begin,
-                       const wchar_t *end,
-                       int cut_at_cursor,
-                       int tokenize)
-{
-    wcstring out;
-    wchar_t *buff;
-    size_t pos;
-
-    pos = get_cursor_pos()-(begin-get_buffer());
-
-    if (tokenize)
-    {
-        buff = wcsndup(begin, end-begin);
-//    fwprintf( stderr, L"Subshell: %ls, end char %lc\n", buff, *end );
-        out.clear();
-        tokenizer_t tok(buff, TOK_ACCEPT_UNFINISHED);
-        for (; tok_has_next(&tok); tok_next(&tok))
-        {
-            if ((cut_at_cursor) &&
-                    (tok_get_pos(&tok)+wcslen(tok_last(&tok)) >= pos))
-                break;
-
-            switch (tok_last_type(&tok))
-            {
-                case TOK_STRING:
-                {
-                    out.append(escape_string(tok_last(&tok), UNESCAPE_INCOMPLETE));
-                    out.push_back(L'\n');
-                    break;
-                }
-                
-                default:
-                {
-                    break;
-                }
-            }
-        }
-
-        stdout_buffer.append(out);
-
-        free(buff);
-    }
-    else
-    {
-        if (cut_at_cursor)
-        {
-            end = begin+pos;
-        }
-
-//    debug( 0, L"woot2 %ls -> %ls", buff, esc );
-
-        stdout_buffer.append(begin, end - begin);
-        stdout_buffer.append(L"\n");
-
-    }
-}
-
-
-/**
-   The commandline builtin. It is used for specifying a new value for
-   the commandline.
-*/
-static int builtin_commandline(parser_t &parser, wchar_t **argv)
-{
-
-    int buffer_part=0;
-    int cut_at_cursor=0;
-
-    int argc = builtin_count_args(argv);
-    int append_mode=0;
-
-    int function_mode = 0;
-
-    int tokenize = 0;
-
-    int cursor_mode = 0;
-    int line_mode = 0;
-    int search_mode = 0;
-    const wchar_t *begin, *end;
-
-    current_buffer = (wchar_t *)builtin_complete_get_temporary_buffer();
-    if (current_buffer)
-    {
-        current_cursor_pos = wcslen(current_buffer);
-    }
-    else
-    {
-        current_buffer = reader_get_buffer();
-        current_cursor_pos = reader_get_cursor_pos();
-    }
-
-    if (!get_buffer())
-    {
-        if (is_interactive_session)
-        {
-            /*
-              Prompt change requested while we don't have
-              a prompt, most probably while reading the
-              init files. Just ignore it.
-            */
-            return 1;
-        }
-
-        stderr_buffer.append(argv[0]);
-        stderr_buffer.append(L": Can not set commandline in non-interactive mode\n");
-        builtin_print_help(parser, argv[0], stderr_buffer);
-        return 1;
-    }
-
-    woptind=0;
-
-    while (1)
-    {
-        static const struct woption
-                long_options[] =
-        {
-            {
-                L"append", no_argument, 0, 'a'
-            }
-            ,
-            {
-                L"insert", no_argument, 0, 'i'
-            }
-            ,
-            {
-                L"replace", no_argument, 0, 'r'
-            }
-            ,
-            {
-                L"current-job", no_argument, 0, 'j'
-            }
-            ,
-            {
-                L"current-process", no_argument, 0, 'p'
-            }
-            ,
-            {
-                L"current-token", no_argument, 0, 't'
-            }
-            ,
-            {
-                L"current-buffer", no_argument, 0, 'b'
-            }
-            ,
-            {
-                L"cut-at-cursor", no_argument, 0, 'c'
-            }
-            ,
-            {
-                L"function", no_argument, 0, 'f'
-            }
-            ,
-            {
-                L"tokenize", no_argument, 0, 'o'
-            }
-            ,
-            {
-                L"help", no_argument, 0, 'h'
-            }
-            ,
-            {
-                L"input", required_argument, 0, 'I'
-            }
-            ,
-            {
-                L"cursor", no_argument, 0, 'C'
-            }
-            ,
-            {
-                L"line", no_argument, 0, 'L'
-            }
-            ,
-            {
-                L"search-mode", no_argument, 0, 'S'
-            }
-            ,
-            {
-                0, 0, 0, 0
-            }
-        }
-        ;
-
-        int opt_index = 0;
-
-        int opt = wgetopt_long(argc,
-                               argv,
-                               L"abijpctwforhI:CLS",
-                               long_options,
-                               &opt_index);
-        if (opt == -1)
-            break;
-
-        switch (opt)
-        {
-            case 0:
-                if (long_options[opt_index].flag != 0)
-                    break;
-                append_format(stderr_buffer,
-                              BUILTIN_ERR_UNKNOWN,
-                              argv[0],
-                              long_options[opt_index].name);
-                builtin_print_help(parser, argv[0], stderr_buffer);
-
-                return 1;
-
-            case L'a':
-                append_mode = APPEND_MODE;
-                break;
-
-            case L'b':
-                buffer_part = STRING_MODE;
-                break;
-
-
-            case L'i':
-                append_mode = INSERT_MODE;
-                break;
-
-            case L'r':
-                append_mode = REPLACE_MODE;
-                break;
-
-            case 'c':
-                cut_at_cursor=1;
-                break;
-
-            case 't':
-                buffer_part = TOKEN_MODE;
-                break;
-
-            case 'j':
-                buffer_part = JOB_MODE;
-                break;
-
-            case 'p':
-                buffer_part = PROCESS_MODE;
-                break;
-
-            case 'f':
-                function_mode=1;
-                break;
-
-            case 'o':
-                tokenize=1;
-                break;
-
-            case 'I':
-                current_buffer = woptarg;
-                current_cursor_pos = wcslen(woptarg);
-                break;
-
-            case 'C':
-                cursor_mode = 1;
-                break;
-
-            case 'L':
-                line_mode = 1;
-                break;
-
-            case 'S':
-                search_mode = 1;
-                break;
-
-            case 'h':
-                builtin_print_help(parser, argv[0], stdout_buffer);
-                return 0;
-
-            case L'?':
-                builtin_unknown_option(parser, argv[0], argv[woptind-1]);
-                return 1;
-        }
-    }
-
-    if (function_mode)
-    {
-        int i;
-
-        /*
-          Check for invalid switch combinations
-        */
-        if (buffer_part || cut_at_cursor || append_mode || tokenize || cursor_mode || line_mode || search_mode)
-        {
-            append_format(stderr_buffer,
-                          BUILTIN_ERR_COMBO,
-                          argv[0]);
-
-            builtin_print_help(parser, argv[0], stderr_buffer);
-            return 1;
-        }
-
-
-        if (argc == woptind)
-        {
-            append_format(stderr_buffer,
-                          BUILTIN_ERR_MISSING,
-                          argv[0]);
-
-            builtin_print_help(parser, argv[0], stderr_buffer);
-            return 1;
-        }
-        for (i=woptind; i<argc; i++)
-        {
-            wchar_t c = input_function_get_code(argv[i]);
-            if (c != (wchar_t)(-1))
-            {
-                /*
-                  input_unreadch inserts the specified keypress or
-                  readline function at the top of the stack of unused
-                  keypresses
-                */
-                input_unreadch(c);
-            }
-            else
-            {
-                append_format(stderr_buffer,
-                              _(L"%ls: Unknown input function '%ls'\n"),
-                              argv[0],
-                              argv[i]);
-                builtin_print_help(parser, argv[0], stderr_buffer);
-                return 1;
-            }
-        }
-
-        return 0;
-    }
-
-    /*
-      Check for invalid switch combinations
-    */
-    if ((search_mode || line_mode || cursor_mode) && (argc-woptind > 1))
-    {
-
-        append_format(stderr_buffer,
-                      argv[0],
-                      L": Too many arguments\n",
-                      NULL);
-        builtin_print_help(parser, argv[0], stderr_buffer);
-        return 1;
-    }
-
-    if ((buffer_part || tokenize || cut_at_cursor) && (cursor_mode || line_mode || search_mode))
-    {
-        append_format(stderr_buffer,
-                      BUILTIN_ERR_COMBO,
-                      argv[0]);
-
-        builtin_print_help(parser, argv[0], stderr_buffer);
-        return 1;
-    }
-
-
-    if ((tokenize || cut_at_cursor) && (argc-woptind))
-    {
-        append_format(stderr_buffer,
-                      BUILTIN_ERR_COMBO2,
-                      argv[0],
-                      L"--cut-at-cursor and --tokenize can not be used when setting the commandline");
-
-
-        builtin_print_help(parser, argv[0], stderr_buffer);
-        return 1;
-    }
-
-    if (append_mode && !(argc-woptind))
-    {
-        append_format(stderr_buffer,
-                      BUILTIN_ERR_COMBO2,
-                      argv[0],
-                      L"insertion mode switches can not be used when not in insertion mode");
-
-        builtin_print_help(parser, argv[0], stderr_buffer);
-        return 1;
-    }
-
-    /*
-      Set default modes
-    */
-    if (!append_mode)
-    {
-        append_mode = REPLACE_MODE;
-    }
-
-    if (!buffer_part)
-    {
-        buffer_part = STRING_MODE;
-    }
-
-    if (cursor_mode)
-    {
-        if (argc-woptind)
-        {
-            wchar_t *endptr;
-            long new_pos;
-            errno = 0;
-
-            new_pos = wcstol(argv[woptind], &endptr, 10);
-            if (*endptr || errno)
-            {
-                append_format(stderr_buffer,
-                              BUILTIN_ERR_NOT_NUMBER,
-                              argv[0],
-                              argv[woptind]);
-                builtin_print_help(parser, argv[0], stderr_buffer);
-            }
-
-            current_buffer = reader_get_buffer();
-            new_pos = maxi(0L, mini(new_pos, (long)wcslen(current_buffer)));
-            reader_set_buffer(current_buffer, (size_t)new_pos);
-            return 0;
-        }
-        else
-        {
-            append_format(stdout_buffer, L"%lu\n", (unsigned long)reader_get_cursor_pos());
-            return 0;
-        }
-
-    }
-
-    if (line_mode)
-    {
-        size_t pos = reader_get_cursor_pos();
-        const wchar_t *buff = reader_get_buffer();
-        append_format(stdout_buffer, L"%lu\n", (unsigned long)parse_util_lineno(buff, pos));
-        return 0;
-
-    }
-
-    if (search_mode)
-    {
-        return !reader_search_mode();
-    }
-
-
-    switch (buffer_part)
-    {
-        case STRING_MODE:
-        {
-            begin = get_buffer();
-            end = begin+wcslen(begin);
-            break;
-        }
-
-        case PROCESS_MODE:
-        {
-            parse_util_process_extent(get_buffer(),
-                                      get_cursor_pos(),
-                                      &begin,
-                                      &end);
-            break;
-        }
-
-        case JOB_MODE:
-        {
-            parse_util_job_extent(get_buffer(),
-                                  get_cursor_pos(),
-                                  &begin,
-                                  &end);
-            break;
-        }
-
-        case TOKEN_MODE:
-        {
-            parse_util_token_extent(get_buffer(),
-                                    get_cursor_pos(),
-                                    &begin,
-                                    &end,
-                                    0, 0);
-            break;
-        }
-
-    }
-
-    switch (argc-woptind)
-    {
-        case 0:
-        {
-            write_part(begin, end, cut_at_cursor, tokenize);
-            break;
-        }
-
-        case 1:
-        {
-            replace_part(begin, end, argv[woptind], append_mode);
-            break;
-        }
-
-        default:
-        {
-            wcstring sb = argv[woptind];
-            int i;
-
-            for (i=woptind+1; i<argc; i++)
-            {
-                sb.push_back(L'\n');
-                sb.append(argv[i]);
-            }
-
-            replace_part(begin, end, sb.c_str(), append_mode);
-
-            break;
-        }
-    }
-
-    return 0;
-}

builtin_complete.cpp

@@ -1,626 +0,0 @@
-/** \file builtin_complete.c Functions defining the complete builtin
-
-Functions used for implementing the complete builtin.
-
-*/
-#include "config.h"
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <wchar.h>
-#include <wctype.h>
-#include <sys/types.h>
-#include <termios.h>
-#include <signal.h>
-
-#include "fallback.h"
-#include "util.h"
-
-#include "wutil.h"
-#include "builtin.h"
-#include "common.h"
-#include "complete.h"
-#include "wgetopt.h"
-#include "parser.h"
-#include "reader.h"
-
-
-/**
-   Internal storage for the builtin_complete_get_temporary_buffer() function.
-*/
-static const wchar_t *temporary_buffer;
-
-/*
-  builtin_complete_* are a set of rather silly looping functions that
-  make sure that all the proper combinations of complete_add or
-  complete_remove get called. This is needed since complete allows you
-  to specify multiple switches on a single commandline, like 'complete
-  -s a -s b -s c', but the complete_add function only accepts one
-  short switch and one long switch.
-*/
-
-/**
-   Silly function
-*/
-static void  builtin_complete_add2(const wchar_t *cmd,
-                                   int cmd_type,
-                                   const wchar_t *short_opt,
-                                   const wcstring_list_t &gnu_opt,
-                                   const wcstring_list_t &old_opt,
-                                   int result_mode,
-                                   const wchar_t *condition,
-                                   const wchar_t *comp,
-                                   const wchar_t *desc,
-                                   int flags)
-{
-    size_t i;
-    const wchar_t *s;
-
-    for (s=short_opt; *s; s++)
-    {
-        complete_add(cmd,
-                     cmd_type,
-                     *s,
-                     0,
-                     0,
-                     result_mode,
-                     condition,
-                     comp,
-                     desc,
-                     flags);
-    }
-
-    for (i=0; i<gnu_opt.size(); i++)
-    {
-        complete_add(cmd,
-                     cmd_type,
-                     0,
-                     gnu_opt.at(i).c_str(),
-                     0,
-                     result_mode,
-                     condition,
-                     comp,
-                     desc,
-                     flags);
-    }
-
-    for (i=0; i<old_opt.size(); i++)
-    {
-        complete_add(cmd,
-                     cmd_type,
-                     0,
-                     old_opt.at(i).c_str(),
-                     1,
-                     result_mode,
-                     condition,
-                     comp,
-                     desc,
-                     flags);
-    }
-
-    if (old_opt.empty() && gnu_opt.empty() && wcslen(short_opt) == 0)
-    {
-        complete_add(cmd,
-                     cmd_type,
-                     0,
-                     0,
-                     0,
-                     result_mode,
-                     condition,
-                     comp,
-                     desc,
-                     flags);
-    }
-}
-
-/**
-   Silly function
-*/
-static void  builtin_complete_add(const wcstring_list_t &cmd,
-                                  const wcstring_list_t &path,
-                                  const wchar_t *short_opt,
-                                  wcstring_list_t &gnu_opt,
-                                  wcstring_list_t &old_opt,
-                                  int result_mode,
-                                  int authoritative,
-                                  const wchar_t *condition,
-                                  const wchar_t *comp,
-                                  const wchar_t *desc,
-                                  int flags)
-{
-    for (size_t i=0; i<cmd.size(); i++)
-    {
-        builtin_complete_add2(cmd.at(i).c_str(),
-                              COMMAND,
-                              short_opt,
-                              gnu_opt,
-                              old_opt,
-                              result_mode,
-                              condition,
-                              comp,
-                              desc,
-                              flags);
-
-        if (authoritative != -1)
-        {
-            complete_set_authoritative(cmd.at(i).c_str(),
-                                       COMMAND,
-                                       authoritative);
-        }
-
-    }
-
-    for (size_t i=0; i<path.size(); i++)
-    {
-        builtin_complete_add2(path.at(i).c_str(),
-                              PATH,
-                              short_opt,
-                              gnu_opt,
-                              old_opt,
-                              result_mode,
-                              condition,
-                              comp,
-                              desc,
-                              flags);
-
-        if (authoritative != -1)
-        {
-            complete_set_authoritative(path.at(i).c_str(),
-                                       PATH,
-                                       authoritative);
-        }
-
-    }
-}
-
-/**
-   Silly function
-*/
-static void builtin_complete_remove3(const wchar_t *cmd,
-                                     int cmd_type,
-                                     wchar_t short_opt,
-                                     const wcstring_list_t &long_opt)
-{
-    for (size_t i=0; i<long_opt.size(); i++)
-    {
-        complete_remove(cmd,
-                        cmd_type,
-                        short_opt,
-                        long_opt.at(i).c_str());
-    }
-}
-
-/**
-   Silly function
-*/
-static void  builtin_complete_remove2(const wchar_t *cmd,
-                                      int cmd_type,
-                                      const wchar_t *short_opt,
-                                      const wcstring_list_t &gnu_opt,
-                                      const wcstring_list_t &old_opt)
-{
-    const wchar_t *s = (wchar_t *)short_opt;
-    if (*s)
-    {
-        for (; *s; s++)
-        {
-            if (old_opt.empty() && gnu_opt.empty())
-            {
-                complete_remove(cmd,
-                                cmd_type,
-                                *s,
-                                0);
-
-            }
-            else
-            {
-                builtin_complete_remove3(cmd,
-                                         cmd_type,
-                                         *s,
-                                         gnu_opt);
-                builtin_complete_remove3(cmd,
-                                         cmd_type,
-                                         *s,
-                                         old_opt);
-            }
-        }
-    }
-    else
-    {
-        builtin_complete_remove3(cmd,
-                                 cmd_type,
-                                 0,
-                                 gnu_opt);
-        builtin_complete_remove3(cmd,
-                                 cmd_type,
-                                 0,
-                                 old_opt);
-
-    }
-
-
-}
-
-/**
-   Silly function
-*/
-static void  builtin_complete_remove(const wcstring_list_t &cmd,
-                                     const wcstring_list_t &path,
-                                     const wchar_t *short_opt,
-                                     const wcstring_list_t &gnu_opt,
-                                     const wcstring_list_t &old_opt)
-{
-    for (size_t i=0; i<cmd.size(); i++)
-    {
-        builtin_complete_remove2(cmd.at(i).c_str(),
-                                 COMMAND,
-                                 short_opt,
-                                 gnu_opt,
-                                 old_opt);
-    }
-
-    for (size_t i=0; i<path.size(); i++)
-    {
-        builtin_complete_remove2(path.at(i).c_str(),
-                                 PATH,
-                                 short_opt,
-                                 gnu_opt,
-                                 old_opt);
-    }
-
-}
-
-
-const wchar_t *builtin_complete_get_temporary_buffer()
-{
-    ASSERT_IS_MAIN_THREAD();
-    return temporary_buffer;
-}
-
-/**
-   The complete builtin. Used for specifying programmable
-   tab-completions. Calls the functions in complete.c for any heavy
-   lifting. Defined in builtin_complete.c
-*/
-static int builtin_complete(parser_t &parser, wchar_t **argv)
-{
-    ASSERT_IS_MAIN_THREAD();
-    bool res=false;
-    int argc=0;
-    int result_mode=SHARED;
-    int remove = 0;
-    int authoritative = -1;
-    int flags = COMPLETE_AUTO_SPACE;
-
-    wcstring short_opt;
-    wcstring_list_t gnu_opt, old_opt;
-    const wchar_t *comp=L"", *desc=L"", *condition=L"";
-
-    bool do_complete = false;
-    wcstring do_complete_param;
-
-    wcstring_list_t cmd;
-    wcstring_list_t path;
-
-    static int recursion_level=0;
-
-    argc = builtin_count_args(argv);
-
-    woptind=0;
-
-    while (! res)
-    {
-        static const struct woption
-                long_options[] =
-        {
-            {
-                L"exclusive", no_argument, 0, 'x'
-            }
-            ,
-            {
-                L"no-files", no_argument, 0, 'f'
-            }
-            ,
-            {
-                L"require-parameter", no_argument, 0, 'r'
-            }
-            ,
-            {
-                L"path", required_argument, 0, 'p'
-            }
-            ,
-            {
-                L"command", required_argument, 0, 'c'
-            }
-            ,
-            {
-                L"short-option", required_argument, 0, 's'
-            }
-            ,
-            {
-                L"long-option", required_argument, 0, 'l'
-            }
-            ,
-            {
-                L"old-option", required_argument, 0, 'o'
-            }
-            ,
-            {
-                L"description", required_argument, 0, 'd'
-            }
-            ,
-            {
-                L"arguments", required_argument, 0, 'a'
-            }
-            ,
-            {
-                L"erase", no_argument, 0, 'e'
-            }
-            ,
-            {
-                L"unauthoritative", no_argument, 0, 'u'
-            }
-            ,
-            {
-                L"authoritative", no_argument, 0, 'A'
-            }
-            ,
-            {
-                L"condition", required_argument, 0, 'n'
-            }
-            ,
-            {
-                L"do-complete", optional_argument, 0, 'C'
-            }
-            ,
-            {
-                L"help", no_argument, 0, 'h'
-            }
-            ,
-            {
-                0, 0, 0, 0
-            }
-        }
-        ;
-
-        int opt_index = 0;
-
-        int opt = wgetopt_long(argc,
-                               argv,
-                               L"a:c:p:s:l:o:d:frxeuAn:C::h",
-                               long_options,
-                               &opt_index);
-        if (opt == -1)
-            break;
-
-        switch (opt)
-        {
-            case 0:
-                if (long_options[opt_index].flag != 0)
-                    break;
-                append_format(stderr_buffer,
-                              BUILTIN_ERR_UNKNOWN,
-                              argv[0],
-                              long_options[opt_index].name);
-                builtin_print_help(parser, argv[0], stderr_buffer);
-
-
-                res = true;
-                break;
-
-            case 'x':
-                result_mode |= EXCLUSIVE;
-                break;
-
-            case 'f':
-                result_mode |= NO_FILES;
-                break;
-
-            case 'r':
-                result_mode |= NO_COMMON;
-                break;
-
-            case 'p':
-            case 'c':
-            {
-                wcstring tmp = woptarg;
-                if (unescape_string(tmp, 1))
-                {
-                    if (opt=='p')
-                        path.push_back(tmp);
-                    else
-                        cmd.push_back(tmp);
-                }
-                else
-                {
-                    append_format(stderr_buffer, L"%ls: Invalid token '%ls'\n", argv[0], woptarg);
-                    res = true;
-                }
-                break;
-            }
-
-            case 'd':
-                desc = woptarg;
-                break;
-
-            case 'u':
-                authoritative=0;
-                break;
-
-            case 'A':
-                authoritative=1;
-                break;
-
-            case 's':
-                short_opt.append(woptarg);
-                break;
-
-            case 'l':
-                gnu_opt.push_back(woptarg);
-                break;
-
-            case 'o':
-                old_opt.push_back(woptarg);
-                break;
-
-            case 'a':
-                comp = woptarg;
-                break;
-
-            case 'e':
-                remove = 1;
-                break;
-
-            case 'n':
-                condition = woptarg;
-                break;
-
-            case 'C':
-                do_complete = true;
-                do_complete_param = woptarg ? woptarg : reader_get_buffer();
-                break;
-
-            case 'h':
-                builtin_print_help(parser, argv[0], stdout_buffer);
-                return 0;
-
-            case '?':
-                builtin_unknown_option(parser, argv[0], argv[woptind-1]);
-                res = true;
-                break;
-
-        }
-
-    }
-
-    if (!res)
-    {
-        if (condition && wcslen(condition))
-        {
-            if (parser.test(condition))
-            {
-                append_format(stderr_buffer,
-                              L"%ls: Condition '%ls' contained a syntax error\n",
-                              argv[0],
-                              condition);
-
-                parser.test(condition, NULL, &stderr_buffer, argv[0]);
-
-                res = true;
-            }
-        }
-    }
-
-    if (!res)
-    {
-        if (comp && wcslen(comp))
-        {
-            if (parser.test_args(comp, 0, 0))
-            {
-                append_format(stderr_buffer,
-                              L"%ls: Completion '%ls' contained a syntax error\n",
-                              argv[0],
-                              comp);
-
-                parser.test_args(comp, &stderr_buffer, argv[0]);
-
-                res = true;
-            }
-        }
-    }
-
-    if (!res)
-    {
-        if (do_complete)
-        {
-            const wchar_t *token;
-
-            parse_util_token_extent(do_complete_param.c_str(), do_complete_param.size(), &token, 0, 0, 0);
-
-            const wchar_t *prev_temporary_buffer = temporary_buffer;
-            temporary_buffer = do_complete_param.c_str();
-
-            if (recursion_level < 1)
-            {
-                recursion_level++;
-
-                std::vector<completion_t> comp;
-                complete(do_complete_param, comp, COMPLETION_REQUEST_DEFAULT);
-
-                for (size_t i=0; i< comp.size() ; i++)
-                {
-                    const completion_t &next =  comp.at(i);
-
-                    const wchar_t *prepend;
-
-                    if (next.flags & COMPLETE_REPLACES_TOKEN)
-                    {
-                        prepend = L"";
-                    }
-                    else
-                    {
-                        prepend = token;
-                    }
-
-
-                    if (!(next.description).empty())
-                    {
-                        append_format(stdout_buffer, L"%ls%ls\t%ls\n", prepend, next.completion.c_str(), next.description.c_str());
-                    }
-                    else
-                    {
-                        append_format(stdout_buffer, L"%ls%ls\n", prepend, next.completion.c_str());
-                    }
-                }
-
-                recursion_level--;
-            }
-
-            temporary_buffer = prev_temporary_buffer;
-
-        }
-        else if (woptind != argc)
-        {
-            append_format(stderr_buffer,
-                          _(L"%ls: Too many arguments\n"),
-                          argv[0]);
-            builtin_print_help(parser, argv[0], stderr_buffer);
-
-            res = true;
-        }
-        else if (cmd.empty() && path.empty())
-        {
-            /* No arguments specified, meaning we print the definitions of
-             * all specified completions to stdout.*/
-            complete_print(stdout_buffer);
-        }
-        else
-        {
-            if (remove)
-            {
-                builtin_complete_remove(cmd,
-                                        path,
-                                        short_opt.c_str(),
-                                        gnu_opt,
-                                        old_opt);
-            }
-            else
-            {
-                builtin_complete_add(cmd,
-                                     path,
-                                     short_opt.c_str(),
-                                     gnu_opt,
-                                     old_opt,
-                                     result_mode,
-                                     authoritative,
-                                     condition,
-                                     comp,
-                                     desc,
-                                     flags);
-            }
-
-        }
-    }
-
-    return res ? 1 : 0;
-}

builtin_jobs.cpp

@@ -1,351 +0,0 @@
-/** \file builtin_jobs.c
-  Functions for executing the jobs builtin.
-*/
-#include "config.h"
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <wchar.h>
-#include <unistd.h>
-#include <termios.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <string.h>
-#include <wctype.h>
-
-#include "fallback.h"
-#include "util.h"
-
-#include "wutil.h"
-#include "builtin.h"
-#include "proc.h"
-#include "parser.h"
-#include "common.h"
-#include "wgetopt.h"
-
-
-/**
-   Print modes for the jobs builtin
-*/
-enum
-{
-    JOBS_DEFAULT, /**< Print lots of general info */
-    JOBS_PRINT_PID, /**< Print pid of each process in job */
-    JOBS_PRINT_COMMAND, /**< Print command name of each process in job */
-    JOBS_PRINT_GROUP, /**< Print group id of job */
-}
-;
-
-
-
-#ifdef HAVE__PROC_SELF_STAT
-/**
-   Calculates the cpu usage (in percent) of the specified job.
-*/
-static int cpu_use(const job_t *j)
-{
-    double u=0;
-    process_t *p;
-
-    for (p=j->first_process; p; p=p->next)
-    {
-        struct timeval t;
-        int jiffies;
-        gettimeofday(&t, 0);
-        jiffies = proc_get_jiffies(p);
-
-        double t1 = 1000000.0*p->last_time.tv_sec+p->last_time.tv_usec;
-        double t2 = 1000000.0*t.tv_sec+t.tv_usec;
-
-        /*    fwprintf( stderr, L"t1 %f t2 %f p1 %d p2 %d\n",
-          t1, t2, jiffies, p->last_jiffies );
-        */
-
-        u += ((double)(jiffies-p->last_jiffies))/(t2-t1);
-    }
-    return u*1000000;
-}
-#endif
-
-/**
-   Print information about the specified job
-*/
-static void builtin_jobs_print(const job_t *j, int mode, int header)
-{
-    process_t *p;
-    switch (mode)
-    {
-        case JOBS_DEFAULT:
-        {
-
-            if (header)
-            {
-                /*
-                  Print table header before first job
-                */
-                stdout_buffer.append(_(L"Job\tGroup\t"));
-#ifdef HAVE__PROC_SELF_STAT
-                stdout_buffer.append(_(L"CPU\t"));
-#endif
-                stdout_buffer.append(_(L"State\tCommand\n"));
-            }
-
-            append_format(stdout_buffer, L"%d\t%d\t", j->job_id, j->pgid);
-
-#ifdef HAVE__PROC_SELF_STAT
-            append_format(stdout_buffer, L"%d%%\t", cpu_use(j));
-#endif
-            stdout_buffer.append(job_is_stopped(j)?_(L"stopped"):_(L"running"));
-            stdout_buffer.append(L"\t");
-            stdout_buffer.append(j->command_wcstr());
-            stdout_buffer.append(L"\n");
-            break;
-        }
-
-        case JOBS_PRINT_GROUP:
-        {
-            if (header)
-            {
-                /*
-                  Print table header before first job
-                */
-                stdout_buffer.append(_(L"Group\n"));
-            }
-            append_format(stdout_buffer, L"%d\n", j->pgid);
-            break;
-        }
-
-        case JOBS_PRINT_PID:
-        {
-            if (header)
-            {
-                /*
-                  Print table header before first job
-                */
-                stdout_buffer.append(_(L"Procces\n"));
-            }
-
-            for (p=j->first_process; p; p=p->next)
-            {
-                append_format(stdout_buffer, L"%d\n", p->pid);
-            }
-            break;
-        }
-
-        case JOBS_PRINT_COMMAND:
-        {
-            if (header)
-            {
-                /*
-                  Print table header before first job
-                */
-                stdout_buffer.append(_(L"Command\n"));
-            }
-
-            for (p=j->first_process; p; p=p->next)
-            {
-                append_format(stdout_buffer, L"%ls\n", p->argv0());
-            }
-            break;
-        }
-    }
-
-}
-
-
-
-/**
-   The jobs builtin. Used fopr printing running jobs. Defined in builtin_jobs.c.
-*/
-static int builtin_jobs(parser_t &parser, wchar_t **argv)
-{
-    int argc=0;
-    int found=0;
-    int mode=JOBS_DEFAULT;
-    int print_last = 0;
-    const job_t *j;
-
-    argc = builtin_count_args(argv);
-    woptind=0;
-
-    while (1)
-    {
-        static const struct woption
-                long_options[] =
-        {
-            {
-                L"pid", no_argument, 0, 'p'
-            }
-            ,
-            {
-                L"command", no_argument, 0, 'c'
-            }
-            ,
-            {
-                L"group", no_argument, 0, 'g'
-            }
-            ,
-            {
-                L"last", no_argument, 0, 'l'
-            }
-            ,
-            {
-                L"help", no_argument, 0, 'h'
-            }
-            ,
-            {
-                0, 0, 0, 0
-            }
-        }
-        ;
-
-        int opt_index = 0;
-
-        int opt = wgetopt_long(argc,
-                               argv,
-                               L"pclgh",
-                               long_options,
-                               &opt_index);
-        if (opt == -1)
-            break;
-
-        switch (opt)
-        {
-            case 0:
-                if (long_options[opt_index].flag != 0)
-                    break;
-                append_format(stderr_buffer,
-                              BUILTIN_ERR_UNKNOWN,
-                              argv[0],
-                              long_options[opt_index].name);
-
-                builtin_print_help(parser, argv[0], stderr_buffer);
-
-
-                return 1;
-
-
-            case 'p':
-                mode=JOBS_PRINT_PID;
-                break;
-
-            case 'c':
-                mode=JOBS_PRINT_COMMAND;
-                break;
-
-            case 'g':
-                mode=JOBS_PRINT_GROUP;
-                break;
-
-            case 'l':
-            {
-                print_last = 1;
-                break;
-            }
-
-            case 'h':
-                builtin_print_help(parser, argv[0], stdout_buffer);
-                return 0;
-
-            case '?':
-                builtin_unknown_option(parser, argv[0], argv[woptind-1]);
-                return 1;
-
-        }
-    }
-
-
-    /*
-      Do not babble if not interactive
-    */
-    if (builtin_out_redirect)
-    {
-        found=1;
-    }
-
-    if (print_last)
-    {
-        /*
-          Ignore unconstructed jobs, i.e. ourself.
-        */
-        job_iterator_t jobs;
-        const job_t *j;
-        while ((j = jobs.next()))
-        {
-
-            if ((j->flags & JOB_CONSTRUCTED) && !job_is_completed(j))
-            {
-                builtin_jobs_print(j, mode, !found);
-                return 0;
-            }
-        }
-
-    }
-    else
-    {
-        if (woptind < argc)
-        {
-            int i;
-
-            found = 1;
-
-            for (i=woptind; i<argc; i++)
-            {
-                int pid;
-                wchar_t *end;
-                errno=0;
-                pid=fish_wcstoi(argv[i], &end, 10);
-                if (errno || *end)
-                {
-                    append_format(stderr_buffer,
-                                  _(L"%ls: '%ls' is not a job\n"),
-                                  argv[0],
-                                  argv[i]);
-                    return 1;
-                }
-
-                j = job_get_from_pid(pid);
-
-                if (j && !job_is_completed(j))
-                {
-                    builtin_jobs_print(j, mode, !found);
-                }
-                else
-                {
-                    append_format(stderr_buffer,
-                                  _(L"%ls: No suitable job: %d\n"),
-                                  argv[0],
-                                  pid);
-                    return 1;
-                }
-            }
-        }
-        else
-        {
-            job_iterator_t jobs;
-            const job_t *j;
-            while ((j = jobs.next()))
-            {
-                /*
-                  Ignore unconstructed jobs, i.e. ourself.
-                */
-                if ((j->flags & JOB_CONSTRUCTED) && !job_is_completed(j))
-                {
-                    builtin_jobs_print(j, mode, !found);
-                    found = 1;
-                }
-            }
-        }
-    }
-
-    if (!found)
-    {
-        append_format(stdout_buffer,
-                      _(L"%ls: There are no jobs\n"),
-                      argv[0]);
-    }
-
-    return 0;
-}
-

builtin_printf.cpp

@@ -1,790 +0,0 @@
-/* printf - format and print data
-   Copyright (C) 1990-2007 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
-
-/* Usage: printf format [argument...]
-
-   A front end to the printf function that lets it be used from the shell.
-
-   Backslash escapes:
-
-   \" = double quote
-   \\ = backslash
-   \a = alert (bell)
-   \b = backspace
-   \c = produce no further output
-   \e = escape
-   \f = form feed
-   \n = new line
-   \r = carriage return
-   \t = horizontal tab
-   \v = vertical tab
-   \ooo = octal number (ooo is 1 to 3 digits)
-   \xhh = hexadecimal number (hhh is 1 to 2 digits)
-   \uhhhh = 16-bit Unicode character (hhhh is 4 digits)
-   \Uhhhhhhhh = 32-bit Unicode character (hhhhhhhh is 8 digits)
-
-   Additional directive:
-
-   %b = print an argument string, interpreting backslash escapes,
-     except that octal escapes are of the form \0 or \0ooo.
-
-   The `format' argument is re-used as many times as necessary
-   to convert all of the given arguments.
-
-   David MacKenzie <djm@gnu.ai.mit.edu> */
-
-/* This file has been imported from source code of printf command in GNU Coreutils version 6.9 */
-
-#include <stdio.h>
-#include <sys/types.h>
-#include <inttypes.h>
-
-#include "common.h"
-
-struct builtin_printf_state_t
-{
-    /* The status of the operation */
-    int exit_code;
-
-    /* Whether we should stop outputting. This gets set in the case of an error, and also with the \c escape. */
-    bool early_exit;
-
-    builtin_printf_state_t() : exit_code(0), early_exit(false)
-    {
-    }
-
-    void verify_numeric(const wchar_t *s, const wchar_t *end, int errcode);
-
-    void print_direc(const wchar_t *start, size_t length, wchar_t conversion,
-                     bool have_field_width, int field_width,
-                     bool have_precision, int precision,
-                     wchar_t const *argument);
-
-    int print_formatted(const wchar_t *format, int argc, wchar_t **argv);
-
-    void fatal_error(const wchar_t *format, ...);
-
-    long print_esc(const wchar_t *escstart, bool octal_0);
-    void print_esc_string(const wchar_t *str);
-    void print_esc_char(wchar_t c);
-
-    void append_output(wchar_t c);
-    void append_output(const wchar_t *c);
-    void append_format_output(const wchar_t *fmt, ...);
-};
-
-static bool is_octal_digit(wchar_t c)
-{
-    return c != L'\0' && wcschr(L"01234567", c) != NULL;
-}
-
-static bool is_hex_digit(wchar_t c)
-{
-    return c != L'\0' && wcschr(L"0123456789ABCDEFabcdef", c) != NULL;
-}
-
-static int hex_to_bin(const wchar_t &c)
-{
-    switch (c)
-    {
-        case L'0':
-            return 0;
-        case L'1':
-            return 1;
-        case L'2':
-            return 2;
-        case L'3':
-            return 3;
-        case L'4':
-            return 4;
-        case L'5':
-            return 5;
-        case L'6':
-            return 6;
-        case L'7':
-            return 7;
-        case L'8':
-            return 8;
-        case L'9':
-            return 9;
-        case L'a':
-        case L'A':
-            return 10;
-        case L'b':
-        case L'B':
-            return 11;
-        case L'c':
-        case L'C':
-            return 12;
-        case L'd':
-        case L'D':
-            return 13;
-        case L'e':
-        case L'E':
-            return 14;
-        case L'f':
-        case L'F':
-            return 15;
-        default:
-            return -1;
-    }
-}
-
-static int octal_to_bin(wchar_t c)
-{
-    switch (c)
-    {
-        case L'0':
-            return 0;
-        case L'1':
-            return 1;
-        case L'2':
-            return 2;
-        case L'3':
-            return 3;
-        case L'4':
-            return 4;
-        case L'5':
-            return 5;
-        case L'6':
-            return 6;
-        case L'7':
-            return 7;
-        default:
-            return -1;
-    }
-}
-
-/* This message appears in N_() here rather than just in _() below because
-   the sole use would have been in a #define.  */
-static wchar_t const *const cfcc_msg =
-    N_(L"warning: %ls: character(s) following character constant have been ignored");
-
-double C_STRTOD(wchar_t const *nptr, wchar_t **endptr)
-{
-    double r;
-
-    const wcstring saved_locale = wsetlocale(LC_NUMERIC, NULL);
-
-    if (!saved_locale.empty())
-    {
-        wsetlocale(LC_NUMERIC, L"C");
-    }
-
-    r = wcstod(nptr, endptr);
-
-    if (!saved_locale.empty())
-    {
-        wsetlocale(LC_NUMERIC, saved_locale.c_str());
-    }
-
-    return r;
-}
-
-static inline unsigned wchar_t to_uwchar_t(wchar_t ch)
-{
-    return ch;
-}
-
-void builtin_printf_state_t::fatal_error(const wchar_t *fmt, ...)
-{
-    // Don't error twice
-    if (early_exit)
-        return;
-
-    va_list va;
-    va_start(va, fmt);
-    wcstring errstr = vformat_string(fmt, va);
-    va_end(va);
-    stderr_buffer.append(errstr);
-    if (! string_suffixes_string(L"\n", errstr))
-        stderr_buffer.push_back(L'\n');
-
-    this->exit_code = STATUS_BUILTIN_ERROR;
-    this->early_exit = true;
-}
-
-void builtin_printf_state_t::append_output(wchar_t c)
-{
-    // Don't output if we're done
-    if (early_exit)
-        return;
-
-    stdout_buffer.push_back(c);
-}
-
-void builtin_printf_state_t::append_output(const wchar_t *c)
-{
-    // Don't output if we're done
-    if (early_exit)
-        return;
-
-    stdout_buffer.append(c);
-}
-
-void builtin_printf_state_t::append_format_output(const wchar_t *fmt, ...)
-{
-    // Don't output if we're done
-    if (early_exit)
-        return;
-
-    va_list va;
-    va_start(va, fmt);
-    append_formatv(stdout_buffer, fmt, va);
-    va_end(va);
-}
-
-
-void builtin_printf_state_t::verify_numeric(const wchar_t *s, const wchar_t *end, int errcode)
-{
-    if (errcode != 0)
-    {
-        this->fatal_error(L"%ls: %s", s, strerror(errcode));
-    }
-    else if (*end)
-    {
-        if (s == end)
-            this->fatal_error(_(L"%ls: expected a numeric value"), s);
-        else
-            this->fatal_error(_(L"%ls: value not completely converted"), s);
-    }
-}
-
-template<typename T>
-static T raw_string_to_scalar_type(const wchar_t *s, wchar_t ** end);
-
-// we use wcstoll instead of wcstoimax because FreeBSD 8 has busted wcstoumax and wcstoimax - see #626
-template<>
-intmax_t raw_string_to_scalar_type(const wchar_t *s, wchar_t ** end)
-{
-    return wcstoll(s, end, 0);
-}
-
-template<>
-uintmax_t raw_string_to_scalar_type(const wchar_t *s, wchar_t ** end)
-{
-    return wcstoull(s, end, 0);
-}
-
-template<>
-long double raw_string_to_scalar_type(const wchar_t *s, wchar_t ** end)
-{
-    return C_STRTOD(s, end);
-}
-
-template<typename T>
-static T string_to_scalar_type(const wchar_t *s, builtin_printf_state_t *state)
-{
-    T val;
-    if (*s == L'\"' || *s == L'\'')
-    {
-        unsigned wchar_t ch = *++s;
-        val = ch;
-    }
-    else
-    {
-        wchar_t *end = NULL;
-        errno = 0;
-        val = raw_string_to_scalar_type<T>(s, &end);
-        state->verify_numeric(s, end, errno);
-    }
-    return val;
-}
-
-/* Output a single-character \ escape.  */
-
-void builtin_printf_state_t::print_esc_char(wchar_t c)
-{
-    switch (c)
-    {
-        case L'a':			/* Alert. */
-            this->append_output(L'\a');
-            break;
-        case L'b':			/* Backspace. */
-            this->append_output(L'\b');
-            break;
-        case L'c':			/* Cancel the rest of the output. */
-            this->early_exit = true;
-            break;
-        case L'e':			/* Escape */
-            this->append_output(L'\x1B');
-            break;
-        case L'f':			/* Form feed. */
-            this->append_output(L'\f');
-            break;
-        case L'n':			/* New line. */
-            this->append_output(L'\n');
-            break;
-        case L'r':			/* Carriage return. */
-            this->append_output(L'\r');
-            break;
-        case L't':			/* Horizontal tab. */
-            this->append_output(L'\t');
-            break;
-        case L'v':			/* Vertical tab. */
-            this->append_output(L'\v');
-            break;
-        default:
-            this->append_output(c);
-            break;
-    }
-}
-
-/* Print a \ escape sequence starting at ESCSTART.
-   Return the number of characters in the escape sequence
-   besides the backslash.
-   If OCTAL_0 is nonzero, octal escapes are of the form \0ooo, where o
-   is an octal digit; otherwise they are of the form \ooo.  */
-long builtin_printf_state_t::print_esc(const wchar_t *escstart, bool octal_0)
-{
-    const wchar_t *p = escstart + 1;
-    int esc_value = 0;		/* Value of \nnn escape. */
-    int esc_length;		/* Length of \nnn escape. */
-
-    if (*p == L'x')
-    {
-        /* A hexadecimal \xhh escape sequence must have 1 or 2 hex. digits.  */
-        for (esc_length = 0, ++p; esc_length < 2 && is_hex_digit(*p); ++esc_length, ++p)
-            esc_value = esc_value * 16 + hex_to_bin(*p);
-        if (esc_length == 0)
-            this->fatal_error(_(L"missing hexadecimal number in escape"));
-        this->append_output(esc_value);
-    }
-    else if (is_octal_digit(*p))
-    {
-        /* Parse \0ooo (if octal_0 && *p == L'0') or \ooo (otherwise).
-        Allow \ooo if octal_0 && *p != L'0'; this is an undocumented
-        extension to POSIX that is compatible with Bash 2.05b.  */
-        for (esc_length = 0, p += octal_0 && *p == L'0'; esc_length < 3 && is_octal_digit(*p); ++esc_length, ++p)
-            esc_value = esc_value * 8 + octal_to_bin(*p);
-        this->append_output(esc_value);
-    }
-    else if (*p && wcschr(L"\"\\abcefnrtv", *p))
-    {
-        print_esc_char(*p++);
-    }
-    else if (*p == L'u' || *p == L'U')
-    {
-        wchar_t esc_char = *p;
-        p++;
-        uint32_t uni_value = 0;
-        for (size_t esc_length = 0; esc_length < (esc_char == L'u' ? 4 : 8); esc_length++)
-        {
-            if (! is_hex_digit(*p))
-            {
-                /* Escape sequence must be done. Complain if we didn't get anything */
-                if (esc_length == 0)
-                {
-                    this->fatal_error(_(L"Missing hexadecimal number in Unicode escape"));
-                }
-                break;
-            }
-            uni_value = uni_value * 16 + hex_to_bin(*p);
-            p++;
-        }
-
-        /* PCA GNU printf respects the limitations described in ISO N717, about which universal characters "shall not" be specified. I believe this limitation is for the benefit of compilers; I see no reason to impose it in builtin_printf.
-
-          If __STDC_ISO_10646__ is defined, then it means wchar_t can and does hold Unicode code points, so just use that. If not defined, use the %lc printf conversion; this probably won't do anything good if your wide character set is not Unicode, but such platforms are exceedingly rare.
-        */
-        if (uni_value > 0x10FFFF)
-        {
-            this->fatal_error(_(L"Unicode character out of range: \\%c%0*x"), esc_char, (esc_char == L'u' ? 4 : 8), uni_value);
-        }
-        else
-        {
-#if defined(__STDC_ISO_10646__)
-            this->append_output(uni_value);
-#else
-            this->append_format_output(L"%lc", uni_value);
-#endif
-        }
-    }
-    else
-    {
-        this->append_output(L'\\');
-        if (*p)
-        {
-            this->append_output(*p);
-            p++;
-        }
-    }
-    return p - escstart - 1;
-}
-
-/* Print string STR, evaluating \ escapes. */
-
-void builtin_printf_state_t::print_esc_string(const wchar_t *str)
-{
-    for (; *str; str++)
-        if (*str == L'\\')
-            str += print_esc(str, true);
-        else
-            this->append_output(*str);
-}
-
-/* Evaluate a printf conversion specification.  START is the start of
-   the directive, LENGTH is its length, and CONVERSION specifies the
-   type of conversion.  LENGTH does not include any length modifier or
-   the conversion specifier itself.  FIELD_WIDTH and PRECISION are the
-   field width and precision for '*' values, if HAVE_FIELD_WIDTH and
-   HAVE_PRECISION are true, respectively.  ARGUMENT is the argument to
-   be formatted.  */
-
-void builtin_printf_state_t::print_direc(const wchar_t *start, size_t length, wchar_t conversion,
-        bool have_field_width, int field_width,
-        bool have_precision, int precision,
-        wchar_t const *argument)
-{
-    // Start with everything except the conversion specifier
-    wcstring fmt(start, length);
-
-    /*  Create a copy of the % directive, with an intmax_t-wide width modifier substituted for any existing integer length modifier. */
-    switch (conversion)
-    {
-        case L'd':
-        case L'i':
-        case L'u':
-            fmt.append(L"ll");
-            break;
-        case L'a':
-        case L'e':
-        case L'f':
-        case L'g':
-        case L'A':
-        case L'E':
-        case L'F':
-        case L'G':
-            fmt.append(L"L");
-            break;
-        case L's':
-            fmt.append(L"l");
-            break;
-        default:
-            break;
-    }
-
-    // Append the conversion itself
-    fmt.push_back(conversion);
-
-    switch (conversion)
-    {
-        case L'd':
-        case L'i':
-        {
-            intmax_t arg = string_to_scalar_type<intmax_t>(argument, this);
-            if (! have_field_width)
-            {
-                if (! have_precision)
-                    this->append_format_output(fmt.c_str(), arg);
-                else
-                    this->append_format_output(fmt.c_str(), precision, arg);
-            }
-            else
-            {
-                if (! have_precision)
-                    this->append_format_output(fmt.c_str(), field_width, arg);
-                else
-                    this->append_format_output(fmt.c_str(), field_width, precision, arg);
-            }
-        }
-        break;
-
-        case L'o':
-        case L'u':
-        case L'x':
-        case L'X':
-        {
-            uintmax_t arg = string_to_scalar_type<uintmax_t>(argument, this);
-            if (!have_field_width)
-            {
-                if (!have_precision)
-                    this->append_format_output(fmt.c_str(), arg);
-                else
-                    this->append_format_output(fmt.c_str(), precision, arg);
-            }
-            else
-            {
-                if (!have_precision)
-                    this->append_format_output(fmt.c_str(), field_width, arg);
-                else
-                    this->append_format_output(fmt.c_str(), field_width, precision, arg);
-            }
-        }
-        break;
-
-        case L'a':
-        case L'A':
-        case L'e':
-        case L'E':
-        case L'f':
-        case L'F':
-        case L'g':
-        case L'G':
-        {
-            long double arg = string_to_scalar_type<long double>(argument, this);
-            if (!have_field_width)
-            {
-                if (!have_precision)
-                    this->append_format_output(fmt.c_str(), arg);
-                else
-                    this->append_format_output(fmt.c_str(), precision, arg);
-            }
-            else
-            {
-                if (!have_precision)
-                    this->append_format_output(fmt.c_str(), field_width, arg);
-                else
-                    this->append_format_output(fmt.c_str(), field_width, precision, arg);
-            }
-        }
-        break;
-
-        case L'c':
-            if (!have_field_width)
-                this->append_format_output(fmt.c_str(), *argument);
-            else
-                this->append_format_output(fmt.c_str(), field_width, *argument);
-            break;
-        case L's':
-            if (!have_field_width)
-            {
-                if (!have_precision)
-                {
-                    this->append_format_output(fmt.c_str(), argument);
-                }
-                else
-                    this->append_format_output(fmt.c_str(), precision, argument);
-            }
-            else
-            {
-                if (!have_precision)
-                    this->append_format_output(fmt.c_str(), field_width, argument);
-                else
-                    this->append_format_output(fmt.c_str(), field_width, precision, argument);
-            }
-            break;
-    }
-}
-
-/* For each character in str, set the corresponding boolean in the array to the given flag */
-static inline void modify_allowed_format_specifiers(bool ok[UCHAR_MAX + 1], const char *str, bool flag)
-{
-    for (const char *c  = str; *c != '\0'; c++)
-    {
-        unsigned char idx = static_cast<unsigned char>(*c);
-        ok[idx] = flag;
-    }
-}
-
-/* Print the text in FORMAT, using ARGV (with ARGC elements) for
-   arguments to any `%' directives.
-   Return the number of elements of ARGV used.  */
-
-int builtin_printf_state_t::print_formatted(const wchar_t *format, int argc, wchar_t **argv)
-{
-    int save_argc = argc;		/* Preserve original value.  */
-    const wchar_t *f;		/* Pointer into `format'.  */
-    const wchar_t *direc_start;	/* Start of % directive.  */
-    size_t direc_length;		/* Length of % directive.  */
-    bool have_field_width;	/* True if FIELD_WIDTH is valid.  */
-    int field_width = 0;		/* Arg to first '*'.  */
-    bool have_precision;		/* True if PRECISION is valid.  */
-    int precision = 0;		/* Arg to second '*'.  */
-    bool ok[UCHAR_MAX + 1] = { };	/* ok['x'] is true if %x is allowed.  */
-
-    for (f = format; *f != L'\0'; ++f)
-    {
-        switch (*f)
-        {
-            case L'%':
-                direc_start = f++;
-                direc_length = 1;
-                have_field_width = have_precision = false;
-                if (*f == L'%')
-                {
-                    this->append_output(L'%');
-                    break;
-                }
-                if (*f == L'b')
-                {
-                    /* FIXME: Field width and precision are not supported
-                    for %b, even though POSIX requires it.  */
-                    if (argc > 0)
-                    {
-                        print_esc_string(*argv);
-                        ++argv;
-                        --argc;
-                    }
-                    break;
-                }
-                
-                modify_allowed_format_specifiers(ok, "aAcdeEfFgGiosuxX", true);
-
-                for (;; f++, direc_length++)
-                {
-                    switch (*f)
-                    {
-                        case L'I':
-                        case L'\'':
-                            modify_allowed_format_specifiers(ok, "aAceEosxX", false);
-                            break;
-                        case '-':
-                        case '+':
-                        case ' ':
-                            break;
-                        case L'#':
-                            modify_allowed_format_specifiers(ok, "cdisu", false);
-                            break;
-                        case '0':
-                            modify_allowed_format_specifiers(ok, "cs", false);
-                            break;
-                        default:
-                            goto no_more_flag_characters;
-                    }
-                }
-no_more_flag_characters:
-                ;
-
-                if (*f == L'*')
-                {
-                    ++f;
-                    ++direc_length;
-                    if (argc > 0)
-                    {
-                        intmax_t width = string_to_scalar_type<intmax_t>(*argv, this);
-                        if (INT_MIN <= width && width <= INT_MAX)
-                            field_width = static_cast<int>(width);
-                        else
-                            this->fatal_error(_(L"invalid field width: %ls"), *argv);
-                        ++argv;
-                        --argc;
-                    }
-                    else
-                    {
-                        field_width = 0;
-                    }
-                    have_field_width = true;
-                }
-                else
-                {
-                    while (iswdigit(*f))
-                    {
-                        ++f;
-                        ++direc_length;
-                    }
-                }
-                if (*f == L'.')
-                {
-                    ++f;
-                    ++direc_length;
-                    modify_allowed_format_specifiers(ok, "c", false);
-                    if (*f == L'*')
-                    {
-                        ++f;
-                        ++direc_length;
-                        if (argc > 0)
-                        {
-                            intmax_t prec = string_to_scalar_type<intmax_t>(*argv, this);
-                            if (prec < 0)
-                            {
-                                /* A negative precision is taken as if the
-                                precision were omitted, so -1 is safe
-                                here even if prec < INT_MIN.  */
-                                precision = -1;
-                            }
-                            else if (INT_MAX < prec)
-                                this->fatal_error(_(L"invalid precision: %ls"), *argv);
-                            else
-                            {
-                                precision = static_cast<int>(prec);
-                            }
-                            ++argv;
-                            --argc;
-                        }
-                        else
-                        {
-                            precision = 0;
-                        }
-                        have_precision = true;
-                    }
-                    else
-                    {
-                        while (iswdigit(*f))
-                        {
-                            ++f;
-                            ++direc_length;
-                        }
-                    }
-                }
-
-                while (*f == L'l' || *f == L'L' || *f == L'h' || *f == L'j' || *f == L't' || *f == L'z')
-                    ++f;
-
-                {
-                    unsigned wchar_t conversion = *f;
-                    if (! ok[conversion])
-                    {
-                        this->fatal_error(_(L"%.*ls: invalid conversion specification"), (int)(f + 1 - direc_start), direc_start);
-                        return 0;
-                    }
-                }
-
-                print_direc(direc_start, direc_length, *f,
-                            have_field_width, field_width,
-                            have_precision, precision,
-                            (argc <= 0 ? L"" : (argc--, *argv++)));
-                break;
-
-            case L'\\':
-                f += print_esc(f, false);
-                break;
-
-            default:
-                this->append_output(*f);
-        }
-    }
-    return save_argc - argc;
-}
-
-static int builtin_printf(parser_t &parser, wchar_t **argv)
-{
-    builtin_printf_state_t state;
-
-    wchar_t *format;
-    int args_used;
-    int argc = builtin_count_args(argv);
-
-    if (argc <= 1)
-    {
-        state.fatal_error(_(L"printf: not enough arguments"));
-        return STATUS_BUILTIN_ERROR;
-    }
-
-    format = argv[1];
-    argc -= 2;
-    argv += 2;
-
-    do
-    {
-        args_used = state.print_formatted(format, argc, argv);
-        argc -= args_used;
-        argv += args_used;
-    }
-    while (args_used > 0 && argc > 0 && ! state.early_exit);
-    return state.exit_code;
-}

builtin_set.cpp

@@ -1,811 +0,0 @@
-/** \file builtin_set.c Functions defining the set builtin
-
-Functions used for implementing the set builtin.
-
-*/
-#include "config.h"
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <wchar.h>
-#include <wctype.h>
-#include <sys/types.h>
-#include <termios.h>
-#include <signal.h>
-#include <vector>
-#include <algorithm>
-#include "fallback.h"
-#include "util.h"
-
-#include "wutil.h"
-#include "builtin.h"
-#include "env.h"
-#include "expand.h"
-#include "common.h"
-#include "wgetopt.h"
-#include "proc.h"
-#include "parser.h"
-
-/* We know about these buffers */
-extern wcstring stdout_buffer, stderr_buffer;
-
-/**
-   Error message for invalid path operations
-*/
-#define BUILTIN_SET_PATH_ERROR L"%ls: Warning: path component %ls may not be valid in %ls.\n"
-
-/**
-   Hint for invalid path operation with a colon
-*/
-#define BUILTIN_SET_PATH_HINT L"%ls: Did you mean 'set %ls $%ls %ls'?\n"
-
-/**
-   Error for mismatch between index count and elements
-*/
-#define BUILTIN_SET_ARG_COUNT L"%ls: The number of variable indexes does not match the number of values\n"
-
-/**
-   Test if the specified variable should be subject to path validation
-*/
-static int is_path_variable(const wchar_t *env)
-{
-    return contains(env, L"PATH", L"CDPATH");
-}
-
-/**
-   Call env_set. If this is a path variable, e.g. PATH, validate the
-   elements. On error, print a description of the problem to stderr.
-*/
-static int my_env_set(const wchar_t *key, const wcstring_list_t &val, int scope)
-{
-    size_t i;
-    int retcode = 0;
-    const wchar_t *val_str=NULL;
-
-    if (is_path_variable(key))
-    {
-        /* Fix for https://github.com/fish-shell/fish-shell/issues/199 . Return success if any path setting succeeds. */
-        bool any_success = false;
-
-        /* Don't bother validating (or complaining about) values that are already present */
-        wcstring_list_t existing_values;
-        const env_var_t existing_variable = env_get_string(key);
-        if (! existing_variable.missing_or_empty())
-            tokenize_variable_array(existing_variable, existing_values);
-
-        for (i=0; i< val.size() ; i++)
-        {
-            const wcstring &dir = val.at(i);
-            if (list_contains_string(existing_values, dir))
-            {
-                any_success = true;
-                continue;
-            }
-
-            bool show_perror = false;
-            int show_hint = 0;
-            bool error = false;
-
-            struct stat buff;
-            if (wstat(dir, &buff))
-            {
-                error = true;
-                show_perror = true;
-            }
-
-            if (!(S_ISDIR(buff.st_mode)))
-            {
-                error = true;
-            }
-
-            if (!error)
-            {
-                any_success = true;
-            }
-            else
-            {
-                append_format(stderr_buffer, _(BUILTIN_SET_PATH_ERROR), L"set", dir.c_str(), key);
-                const wchar_t *colon = wcschr(dir.c_str(), L':');
-
-                if (colon && *(colon+1))
-                {
-                    show_hint = 1;
-                }
-
-            }
-
-            if (show_perror)
-            {
-                builtin_wperror(L"set");
-            }
-
-            if (show_hint)
-            {
-                append_format(stderr_buffer, _(BUILTIN_SET_PATH_HINT), L"set", key, key, wcschr(dir.c_str(), L':')+1);
-            }
-
-        }
-
-        /* Fail at setting the path if we tried to set it to something non-empty, but it wound up empty. */
-        if (! val.empty() && ! any_success)
-        {
-            return 1;
-        }
-
-    }
-
-    wcstring sb;
-    if (! val.empty())
-    {
-        for (i=0; i< val.size() ; i++)
-        {
-            sb.append(val[i]);
-            if (i<val.size() - 1)
-            {
-                sb.append(ARRAY_SEP_STR);
-            }
-        }
-        val_str = sb.c_str();
-    }
-
-    switch (env_set(key, val_str, scope | ENV_USER))
-    {
-        case ENV_PERM:
-        {
-            append_format(stderr_buffer, _(L"%ls: Tried to change the read-only variable '%ls'\n"), L"set", key);
-            retcode=1;
-            break;
-        }
-
-        case ENV_INVALID:
-        {
-            append_format(stderr_buffer, _(L"%ls: Unknown error"), L"set");
-            retcode=1;
-            break;
-        }
-    }
-
-    return retcode;
-}
-
-
-
-/**
-  Extract indexes from a destination argument of the form name[index1 index2...]
-
-  \param indexes the list to insert the new indexes into
-  \param src the source string to parse
-  \param name the name of the element. Return null if the name in \c src does not match this name
-  \param var_count the number of elements in the array to parse.
-
-  \return the total number of indexes parsed, or -1 on error
-*/
-static int parse_index(std::vector<long> &indexes,
-                       const wchar_t *src,
-                       const wchar_t *name,
-                       size_t var_count)
-{
-    size_t len;
-
-    int count = 0;
-    const wchar_t *src_orig = src;
-
-    if (src == 0)
-    {
-        return 0;
-    }
-
-    while (*src != L'\0' && (iswalnum(*src) || *src == L'_'))
-    {
-        src++;
-    }
-
-    if (*src != L'[')
-    {
-        append_format(stderr_buffer, _(BUILTIN_SET_ARG_COUNT), L"set");
-        return 0;
-    }
-
-    len = src-src_orig;
-
-    if ((wcsncmp(src_orig, name, len)!=0) || (wcslen(name) != (len)))
-    {
-        append_format(stderr_buffer,
-                      _(L"%ls: Multiple variable names specified in single call (%ls and %.*ls)\n"),
-                      L"set",
-                      name,
-                      len,
-                      src_orig);
-        return 0;
-    }
-
-    src++;
-
-    while (iswspace(*src))
-    {
-        src++;
-    }
-
-    while (*src != L']')
-    {
-        wchar_t *end;
-
-        long l_ind;
-
-        errno = 0;
-
-        l_ind = wcstol(src, &end, 10);
-
-        if (end==src || errno)
-        {
-            append_format(stderr_buffer, _(L"%ls: Invalid index starting at '%ls'\n"), L"set", src);
-            return 0;
-        }
-
-        if (l_ind < 0)
-        {
-            l_ind = var_count+l_ind+1;
-        }
-
-        src = end;
-        if (*src==L'.' && *(src+1)==L'.')
-        {
-            src+=2;
-            long l_ind2 = wcstol(src, &end, 10);
-            if (end==src || errno)
-            {
-                return 1;
-            }
-            src = end;
-
-            if (l_ind2 < 0)
-            {
-                l_ind2 = var_count+l_ind2+1;
-            }
-            int direction = l_ind2<l_ind ? -1 : 1 ;
-            for (long jjj = l_ind; jjj*direction <= l_ind2*direction; jjj+=direction)
-            {
-                // debug(0, L"Expand range [set]: %i\n", jjj);
-                indexes.push_back(jjj);
-                count++;
-            }
-        }
-        else
-        {
-            indexes.push_back(l_ind);
-            count++;
-        }
-        while (iswspace(*src)) src++;
-    }
-
-    return count;
-}
-
-static int update_values(wcstring_list_t &list,
-                         std::vector<long> &indexes,
-                         wcstring_list_t &values)
-{
-    size_t i;
-
-    /* Replace values where needed */
-    for (i = 0; i < indexes.size(); i++)
-    {
-        /*
-          The '- 1' below is because the indices in fish are
-          one-based, but the vector uses zero-based indices
-        */
-        long ind = indexes[i] - 1;
-        const wcstring newv = values[ i ];
-        if (ind < 0)
-        {
-            return 1;
-        }
-        if ((size_t)ind >= list.size())
-        {
-            list.resize(ind+1);
-        }
-
-//    free((void *) al_get(list, ind));
-        list[ ind ] = newv;
-    }
-
-    return 0;
-}
-
-/**
-   Erase from a list of wcstring values at specified indexes
-*/
-static void erase_values(wcstring_list_t &list, const std::vector<long> &indexes)
-{
-    // Make a set of indexes.
-    // This both sorts them into ascending order and removes duplicates.
-    const std::set<long> indexes_set(indexes.begin(), indexes.end());
-
-    // Now walk the set backwards, so we encounter larger indexes first, and remove elements at the given (1-based) indexes.
-    std::set<long>::const_reverse_iterator iter;
-    for (iter = indexes_set.rbegin(); iter != indexes_set.rend(); ++iter)
-    {
-        long val = *iter;
-        if (val > 0 && (size_t)val <= list.size())
-        {
-            // One-based indexing!
-            list.erase(list.begin() + val - 1);
-        }
-    }
-}
-
-
-/**
-   Print the names of all environment variables in the scope, with or without shortening,
-   with or without values, with or without escaping
-*/
-static void print_variables(int include_values, int esc, bool shorten_ok, int scope)
-{
-    wcstring_list_t names = env_get_names(scope);
-    sort(names.begin(), names.end());
-
-    for (size_t i = 0; i < names.size(); i++)
-    {
-        const wcstring key = names.at(i);
-        const wcstring e_key = escape_string(key, 0);
-
-        stdout_buffer.append(e_key);
-
-        if (include_values)
-        {
-            env_var_t value = env_get_string(key);
-            if (!value.missing())
-            {
-                int shorten = 0;
-
-                if (shorten_ok && value.length() > 64)
-                {
-                    shorten = 1;
-                    value.resize(60);
-                }
-
-                wcstring e_value = esc ? expand_escape_variable(value) : value;
-
-                stdout_buffer.append(L" ");
-                stdout_buffer.append(e_value);
-
-                if (shorten)
-                {
-                    stdout_buffer.push_back(ellipsis_char);
-                }
-
-            }
-        }
-
-        stdout_buffer.append(L"\n");
-    }
-}
-
-
-
-/**
-   The set builtin. Creates, updates and erases environment variables
-   and environemnt variable arrays.
-*/
-static int builtin_set(parser_t &parser, wchar_t **argv)
-{
-    /** Variables used for parsing the argument list */
-    const struct woption long_options[] =
-    {
-        { L"export", no_argument, 0, 'x' },
-        { L"global", no_argument, 0, 'g' },
-        { L"local", no_argument, 0, 'l' },
-        { L"erase", no_argument, 0, 'e' },
-        { L"names", no_argument, 0, 'n' },
-        { L"unexport", no_argument, 0, 'u' },
-        { L"universal", no_argument, 0, 'U' },
-        { L"long", no_argument, 0, 'L' },
-        { L"query", no_argument, 0, 'q' },
-        { L"help", no_argument, 0, 'h' },
-        { 0, 0, 0, 0 }
-    } ;
-
-    const wchar_t *short_options = L"+xglenuULqh";
-
-    int argc = builtin_count_args(argv);
-
-    /*
-      Flags to set the work mode
-    */
-    int local = 0, global = 0, exportv = 0;
-    int erase = 0, list = 0, unexport=0;
-    int universal = 0, query=0;
-    bool shorten_ok = true;
-    bool preserve_incoming_failure_exit_status = true;
-    const int incoming_exit_status = proc_get_last_status();
-
-    /*
-      Variables used for performing the actual work
-    */
-    wchar_t *dest = 0;
-    int retcode=0;
-    int scope;
-    int slice=0;
-    int i;
-
-    wchar_t *bad_char;
-
-
-    /* Parse options to obtain the requested operation and the modifiers */
-    woptind = 0;
-    while (1)
-    {
-        int c = wgetopt_long(argc, argv, short_options, long_options, 0);
-
-        if (c == -1)
-        {
-            break;
-        }
-
-        switch (c)
-        {
-            case 0:
-                break;
-
-            case 'e':
-                erase = 1;
-                preserve_incoming_failure_exit_status = false;
-                break;
-
-            case 'n':
-                list = 1;
-                preserve_incoming_failure_exit_status = false;
-                break;
-
-            case 'x':
-                exportv = 1;
-                break;
-
-            case 'l':
-                local = 1;
-                break;
-
-            case 'g':
-                global = 1;
-                break;
-
-            case 'u':
-                unexport = 1;
-                break;
-
-            case 'U':
-                universal = 1;
-                break;
-
-            case 'L':
-                shorten_ok = false;
-                break;
-
-            case 'q':
-                query = 1;
-                preserve_incoming_failure_exit_status = false;
-                break;
-
-            case 'h':
-                builtin_print_help(parser, argv[0], stdout_buffer);
-                return 0;
-
-            case '?':
-                builtin_unknown_option(parser, argv[0], argv[woptind-1]);
-                return 1;
-
-            default:
-                break;
-        }
-    }
-
-    /*
-      Ok, all arguments have been parsed, let's validate them
-    */
-
-    /*
-      If we are checking the existance of a variable (-q) we can not
-      also specify scope
-    */
-
-    if (query && (erase || list))
-    {
-        append_format(stderr_buffer,
-                      BUILTIN_ERR_COMBO,
-                      argv[0]);
-
-        builtin_print_help(parser, argv[0], stderr_buffer);
-        return 1;
-    }
-
-
-    /* We can't both list and erase varaibles */
-    if (erase && list)
-    {
-        append_format(stderr_buffer,
-                      BUILTIN_ERR_COMBO,
-                      argv[0]);
-
-        builtin_print_help(parser, argv[0], stderr_buffer);
-        return 1;
-    }
-
-    /*
-      Variables can only have one scope
-    */
-    if (local + global + universal > 1)
-    {
-        append_format(stderr_buffer,
-                      BUILTIN_ERR_GLOCAL,
-                      argv[0]);
-        builtin_print_help(parser, argv[0], stderr_buffer);
-        return 1;
-    }
-
-    /*
-      Variables can only have one export status
-    */
-    if (exportv && unexport)
-    {
-        append_format(stderr_buffer,
-                      BUILTIN_ERR_EXPUNEXP,
-                      argv[0]);
-        builtin_print_help(parser, argv[0], stderr_buffer);
-        return 1;
-    }
-
-    /*
-      Calculate the scope value for variable assignement
-    */
-    scope = (local ? ENV_LOCAL : 0) | (global ? ENV_GLOBAL : 0) | (exportv ? ENV_EXPORT : 0) | (unexport ? ENV_UNEXPORT : 0) | (universal ? ENV_UNIVERSAL:0) | ENV_USER;
-
-    if (query)
-    {
-        /*
-          Query mode. Return the number of variables that do not exist
-          out of the specified variables.
-        */
-        int i;
-        for (i=woptind; i<argc; i++)
-        {
-            wchar_t *arg = argv[i];
-            int slice=0;
-
-            if (!(dest = wcsdup(arg)))
-            {
-                DIE_MEM();
-            }
-
-            if (wcschr(dest, L'['))
-            {
-                slice = 1;
-                *wcschr(dest, L'[')=0;
-            }
-
-            if (slice)
-            {
-                std::vector<long> indexes;
-                wcstring_list_t result;
-                size_t j;
-
-                env_var_t dest_str = env_get_string(dest);
-                if (! dest_str.missing())
-                    tokenize_variable_array(dest_str, result);
-
-                if (!parse_index(indexes, arg, dest, result.size()))
-                {
-                    builtin_print_help(parser, argv[0], stderr_buffer);
-                    retcode = 1;
-                    break;
-                }
-                for (j=0; j < indexes.size() ; j++)
-                {
-                    long idx = indexes[j];
-                    if (idx < 1 || (size_t)idx > result.size())
-                    {
-                        retcode++;
-                    }
-                }
-            }
-            else
-            {
-                if (!env_exist(arg, scope))
-                {
-                    retcode++;
-                }
-            }
-
-            free(dest);
-
-        }
-        return retcode;
-    }
-
-    if (list)
-    {
-        /* Maybe we should issue an error if there are any other arguments? */
-        print_variables(0, 0, shorten_ok, scope);
-        return 0;
-    }
-
-    if (woptind == argc)
-    {
-        /*
-          Print values of variables
-        */
-
-        if (erase)
-        {
-            append_format(stderr_buffer,
-                          _(L"%ls: Erase needs a variable name\n"),
-                          argv[0]);
-
-            builtin_print_help(parser, argv[0], stderr_buffer);
-            retcode = 1;
-        }
-        else
-        {
-            print_variables(1, 1, shorten_ok, scope);
-        }
-
-        return retcode;
-    }
-
-    if (!(dest = wcsdup(argv[woptind])))
-    {
-        DIE_MEM();
-    }
-
-    if (wcschr(dest, L'['))
-    {
-        slice = 1;
-        *wcschr(dest, L'[')=0;
-    }
-
-    if (!wcslen(dest))
-    {
-        free(dest);
-        append_format(stderr_buffer, BUILTIN_ERR_VARNAME_ZERO, argv[0]);
-        builtin_print_help(parser, argv[0], stderr_buffer);
-        return 1;
-    }
-
-    if ((bad_char = wcsvarname(dest)))
-    {
-        append_format(stderr_buffer, BUILTIN_ERR_VARCHAR, argv[0], *bad_char);
-        builtin_print_help(parser, argv[0], stderr_buffer);
-        free(dest);
-        return 1;
-    }
-
-    if (slice && erase && (scope != ENV_USER))
-    {
-        free(dest);
-        append_format(stderr_buffer, _(L"%ls: Can not specify scope when erasing array slice\n"), argv[0]);
-        builtin_print_help(parser, argv[0], stderr_buffer);
-        return 1;
-    }
-
-    /*
-      set assignment can work in two modes, either using slices or
-      using the whole array. We detect which mode is used here.
-    */
-
-    if (slice)
-    {
-
-        /*
-          Slice mode
-        */
-        size_t idx_count, val_count;
-        wcstring_list_t values;
-        std::vector<long> indexes;
-        wcstring_list_t result;
-
-        const env_var_t dest_str = env_get_string(dest);
-        if (! dest_str.missing())
-            tokenize_variable_array(dest_str, result);
-
-        for (; woptind<argc; woptind++)
-        {
-            if (!parse_index(indexes, argv[woptind], dest, result.size()))
-            {
-                builtin_print_help(parser, argv[0], stderr_buffer);
-                retcode = 1;
-                break;
-            }
-
-            val_count = argc-woptind-1;
-            idx_count = indexes.size();
-
-            if (!erase)
-            {
-                if (val_count < idx_count)
-                {
-                    append_format(stderr_buffer, _(BUILTIN_SET_ARG_COUNT), argv[0]);
-                    builtin_print_help(parser, argv[0], stderr_buffer);
-                    retcode=1;
-                    break;
-                }
-                if (val_count == idx_count)
-                {
-                    woptind++;
-                    break;
-                }
-            }
-        }
-
-        if (!retcode)
-        {
-            /*
-              Slice indexes have been calculated, do the actual work
-            */
-
-            if (erase)
-            {
-                erase_values(result, indexes);
-                my_env_set(dest, result, scope);
-            }
-            else
-            {
-                wcstring_list_t value;
-
-                while (woptind < argc)
-                {
-                    value.push_back(argv[woptind++]);
-                }
-
-                if (update_values(result,
-                                  indexes,
-                                  value))
-                {
-                    append_format(stderr_buffer, L"%ls: ", argv[0]);
-                    append_format(stderr_buffer, ARRAY_BOUNDS_ERR);
-                    stderr_buffer.push_back(L'\n');
-                }
-
-                my_env_set(dest, result, scope);
-
-
-            }
-        }
-    }
-    else
-    {
-        woptind++;
-
-        /*
-          No slicing
-        */
-        if (erase)
-        {
-            if (woptind != argc)
-            {
-                append_format(stderr_buffer,
-                              _(L"%ls: Values cannot be specfied with erase\n"),
-                              argv[0]);
-                builtin_print_help(parser, argv[0], stderr_buffer);
-                retcode=1;
-            }
-            else
-            {
-                retcode = env_remove(dest, scope);
-            }
-        }
-        else
-        {
-            wcstring_list_t val;
-            for (i=woptind; i<argc; i++)
-                val.push_back(argv[i]);
-            retcode = my_env_set(dest, val, scope);
-        }
-    }
-
-    free(dest);
-
-    if (retcode == STATUS_BUILTIN_OK && preserve_incoming_failure_exit_status)
-        retcode = incoming_exit_status;
-    return retcode;
-
-}
-

builtin_set_color.cpp

@@ -1,243 +0,0 @@
-/** \file builtin_set_color.cpp Functions defining the set_color builtin
-
-Functions used for implementing the set_color builtin.
-
-*/
-#include "config.h"
-
-#include "builtin.h"
-#include "color.h"
-#include "output.h"
-
-#if HAVE_NCURSES_H
-#include <ncurses.h>
-#else
-#include <curses.h>
-#endif
-
-#if HAVE_TERM_H
-#include <term.h>
-#elif HAVE_NCURSES_TERM_H
-#include <ncurses/term.h>
-#endif
-
-
-/* We know about these buffers */
-extern wcstring stdout_buffer, stderr_buffer;
-
-/**
-   Error message for invalid path operations
-*/
-#define BUILTIN_SET_PATH_ERROR L"%ls: Warning: path component %ls may not be valid in %ls.\n"
-
-/**
-   Hint for invalid path operation with a colon
-*/
-#define BUILTIN_SET_PATH_HINT L"%ls: Did you mean 'set %ls $%ls %ls'?\n"
-
-/**
-   Error for mismatch between index count and elements
-*/
-#define BUILTIN_SET_ARG_COUNT L"%ls: The number of variable indexes does not match the number of values\n"
-
-static void print_colors(void)
-{
-    const wcstring_list_t result = rgb_color_t::named_color_names();
-    size_t i;
-    for (i=0; i < result.size(); i++)
-    {
-        stdout_buffer.append(result.at(i));
-        stdout_buffer.push_back(L'\n');
-    }
-}
-
-/* function we set as the output writer */
-static std::string builtin_set_color_output;
-static int set_color_builtin_outputter(char c)
-{
-    ASSERT_IS_MAIN_THREAD();
-    builtin_set_color_output.push_back(c);
-    return 0;
-}
-
-/**
-   set_color builtin
-*/
-static int builtin_set_color(parser_t &parser, wchar_t **argv)
-{
-    /** Variables used for parsing the argument list */
-    const struct woption long_options[] =
-    {
-        { L"background", required_argument, 0, 'b'},
-        { L"help", no_argument, 0, 'h' },
-        { L"bold", no_argument, 0, 'o' },
-        { L"underline", no_argument, 0, 'u' },
-        { L"version", no_argument, 0, 'v' },
-        { L"print-colors", no_argument, 0, 'c' },
-        { 0, 0, 0, 0 }
-    };
-
-    const wchar_t *short_options = L"b:hvocu";
-
-    int argc = builtin_count_args(argv);
-
-    const wchar_t *bgcolor = NULL;
-    bool bold = false, underline=false;
-    int errret;
-
-    /* Parse options to obtain the requested operation and the modifiers */
-    woptind = 0;
-    while (1)
-    {
-        int c = wgetopt_long(argc, argv, short_options, long_options, 0);
-
-        if (c == -1)
-        {
-            break;
-        }
-
-        switch (c)
-        {
-            case 0:
-                break;
-
-            case 'b':
-                bgcolor = woptarg;
-                break;
-
-            case 'h':
-                builtin_print_help(parser, argv[0], stdout_buffer);
-                return STATUS_BUILTIN_OK;
-
-            case 'o':
-                bold = true;
-                break;
-
-            case 'u':
-                underline = true;
-                break;
-
-            case 'c':
-                print_colors();
-                return STATUS_BUILTIN_OK;
-
-            case '?':
-                return STATUS_BUILTIN_ERROR;
-        }
-    }
-
-    /* Remaining argument is foreground color */
-    const wchar_t *fgcolor = NULL;
-    if (woptind < argc)
-    {
-        if (woptind + 1 == argc)
-        {
-            fgcolor = argv[woptind];
-        }
-        else
-        {
-            append_format(stderr_buffer,
-                          _(L"%ls: Too many arguments\n"),
-                          argv[0]);
-            return STATUS_BUILTIN_ERROR;
-        }
-    }
-
-    if (fgcolor == NULL && bgcolor == NULL && !bold && !underline)
-    {
-        append_format(stderr_buffer,
-                      _(L"%ls: Expected an argument\n"),
-                      argv[0]);
-        return STATUS_BUILTIN_ERROR;
-    }
-
-    const rgb_color_t fg = rgb_color_t(fgcolor ? fgcolor : L"");
-    if (fgcolor && (fg.is_none() || fg.is_ignore()))
-    {
-        append_format(stderr_buffer, _(L"%ls: Unknown color '%ls'\n"), argv[0], fgcolor);
-        return STATUS_BUILTIN_ERROR;
-    }
-
-    const rgb_color_t bg = rgb_color_t(bgcolor ? bgcolor : L"");
-    if (bgcolor && (bg.is_none() || bg.is_ignore()))
-    {
-        append_format(stderr_buffer, _(L"%ls: Unknown color '%ls'\n"), argv[0], bgcolor);
-        return STATUS_BUILTIN_ERROR;
-    }
-
-    /* Make sure that the term exists */
-    if (cur_term == NULL && setupterm(0, STDOUT_FILENO, &errret) == ERR)
-    {
-        append_format(stderr_buffer, _(L"%ls: Could not set up terminal\n"), argv[0]);
-        return STATUS_BUILTIN_ERROR;
-    }
-
-    /*
-       Test if we have at least basic support for setting fonts, colors
-       and related bits - otherwise just give up...
-    */
-    if (! exit_attribute_mode)
-    {
-        return STATUS_BUILTIN_ERROR;
-    }
-
-
-    /* Save old output function so we can restore it */
-    int (* const saved_writer_func)(char) = output_get_writer();
-
-    /* Set our output function, which writes to a std::string */
-    builtin_set_color_output.clear();
-    output_set_writer(set_color_builtin_outputter);
-
-    if (bold)
-    {
-        if (enter_bold_mode)
-            writembs(tparm(enter_bold_mode));
-    }
-
-    if (underline)
-    {
-        if (enter_underline_mode)
-            writembs(enter_underline_mode);
-    }
-
-    if (bgcolor != NULL)
-    {
-        if (bg.is_normal())
-        {
-            write_background_color(0);
-            writembs(tparm(exit_attribute_mode));
-        }
-    }
-
-    if (fgcolor != NULL)
-    {
-        if (fg.is_normal() || fg.is_reset())
-        {
-            write_foreground_color(0);
-            writembs(tparm(exit_attribute_mode));
-        }
-        else
-        {
-            write_foreground_color(index_for_color(fg));
-        }
-    }
-
-    if (bgcolor != NULL)
-    {
-        if (! bg.is_normal() && ! bg.is_reset())
-        {
-            write_background_color(index_for_color(bg));
-        }
-    }
-
-    /* Restore saved writer function */
-    output_set_writer(saved_writer_func);
-
-    /* Output the collected string */
-    std::string local_output;
-    std::swap(builtin_set_color_output, local_output);
-    stdout_buffer.append(str2wcstring(local_output));
-
-    return STATUS_BUILTIN_OK;
-}

builtin_test.cpp

@@ -1,974 +0,0 @@
-/** \file builtin_test.cpp Functions defining the test builtin
-
-Functions used for implementing the test builtin.
-Implemented from scratch (yes, really) by way of IEEE 1003.1 as reference.
-
-*/
-
-#include "config.h"
-#include "common.h"
-#include "builtin.h"
-#include "wutil.h"
-#include "proc.h"
-#include <sys/stat.h>
-#include <memory>
-
-
-enum
-{
-    BUILTIN_TEST_SUCCESS = STATUS_BUILTIN_OK,
-    BUILTIN_TEST_FAIL = STATUS_BUILTIN_ERROR
-};
-
-
-int builtin_test(parser_t &parser, wchar_t **argv);
-
-namespace test_expressions
-{
-
-enum token_t
-{
-    test_unknown,               // arbitrary string
-
-    test_bang,                  // "!", inverts sense
-
-    test_filetype_b,            // "-b", for block special files
-    test_filetype_c,            // "-c", for character special files
-    test_filetype_d,            // "-d", for directories
-    test_filetype_e,            // "-e", for files that exist
-    test_filetype_f,            // "-f", for for regular files
-    test_filetype_G,            // "-G", for check effective group id
-    test_filetype_g,            // "-g", for set-group-id
-    test_filetype_h,            // "-h", for symbolic links
-    test_filetype_L,            // "-L", same as -h
-    test_filetype_O,            // "-O", for check effective user id
-    test_filetype_p,            // "-p", for FIFO
-    test_filetype_S,            // "-S", socket
-
-    test_filesize_s,            // "-s", size greater than zero
-
-    test_filedesc_t,            // "-t", whether the fd is associated with a terminal
-
-    test_fileperm_r,            // "-r", read permission
-    test_fileperm_u,            // "-u", whether file is setuid
-    test_fileperm_w,            // "-w", whether file write permission is allowed
-    test_fileperm_x,            // "-x", whether file execute/search is allowed
-
-    test_string_n,              // "-n", non-empty string
-    test_string_z,              // "-z", true if length of string is 0
-    test_string_equal,          // "=", true if strings are identical
-    test_string_not_equal,      // "!=", true if strings are not identical
-
-    test_number_equal,          // "-eq", true if numbers are equal
-    test_number_not_equal,      // "-ne", true if numbers are not equal
-    test_number_greater,        // "-gt", true if first number is larger than second
-    test_number_greater_equal,  // "-ge", true if first number is at least second
-    test_number_lesser,         // "-lt", true if first number is smaller than second
-    test_number_lesser_equal,   // "-le", true if first number is at most second
-
-    test_combine_and,            // "-a", true if left and right are both true
-    test_combine_or,             // "-o", true if either left or right is true
-
-    test_paren_open,             // "(", open paren
-    test_paren_close,             // ")", close paren
-};
-
-static bool binary_primary_evaluate(test_expressions::token_t token, const wcstring &left, const wcstring &right, wcstring_list_t &errors);
-static bool unary_primary_evaluate(test_expressions::token_t token, const wcstring &arg, wcstring_list_t &errors);
-
-
-enum
-{
-    UNARY_PRIMARY = 1 << 0,
-    BINARY_PRIMARY = 1 << 1
-};
-
-static const struct token_info_t
-{
-    token_t tok;
-    const wchar_t *string;
-    unsigned int flags;
-} token_infos[] =
-{
-    {test_unknown, L"", 0},
-    {test_bang, L"!", 0},
-    {test_filetype_b, L"-b", UNARY_PRIMARY},
-    {test_filetype_c, L"-c", UNARY_PRIMARY},
-    {test_filetype_d, L"-d", UNARY_PRIMARY},
-    {test_filetype_e, L"-e", UNARY_PRIMARY},
-    {test_filetype_f, L"-f", UNARY_PRIMARY},
-    {test_filetype_G, L"-G", UNARY_PRIMARY},
-    {test_filetype_g, L"-g", UNARY_PRIMARY},
-    {test_filetype_h, L"-h", UNARY_PRIMARY},
-    {test_filetype_L, L"-L", UNARY_PRIMARY},
-    {test_filetype_O, L"-O", UNARY_PRIMARY},
-    {test_filetype_p, L"-p", UNARY_PRIMARY},
-    {test_filetype_S, L"-S", UNARY_PRIMARY},
-    {test_filesize_s, L"-s", UNARY_PRIMARY},
-    {test_filedesc_t, L"-t", UNARY_PRIMARY},
-    {test_fileperm_r, L"-r", UNARY_PRIMARY},
-    {test_fileperm_u, L"-u", UNARY_PRIMARY},
-    {test_fileperm_w, L"-w", UNARY_PRIMARY},
-    {test_fileperm_x, L"-x", UNARY_PRIMARY},
-    {test_string_n, L"-n", UNARY_PRIMARY},
-    {test_string_z, L"-z", UNARY_PRIMARY},
-    {test_string_equal, L"=", BINARY_PRIMARY},
-    {test_string_not_equal, L"!=", BINARY_PRIMARY},
-    {test_number_equal, L"-eq", BINARY_PRIMARY},
-    {test_number_not_equal, L"-ne", BINARY_PRIMARY},
-    {test_number_greater, L"-gt", BINARY_PRIMARY},
-    {test_number_greater_equal, L"-ge", BINARY_PRIMARY},
-    {test_number_lesser, L"-lt", BINARY_PRIMARY},
-    {test_number_lesser_equal, L"-le", BINARY_PRIMARY},
-    {test_combine_and, L"-a", 0},
-    {test_combine_or, L"-o", 0},
-    {test_paren_open, L"(", 0},
-    {test_paren_close, L")", 0}
-};
-
-const token_info_t *token_for_string(const wcstring &str)
-{
-    for (size_t i=0; i < sizeof token_infos / sizeof *token_infos; i++)
-    {
-        if (str == token_infos[i].string)
-        {
-            return &token_infos[i];
-        }
-    }
-    return &token_infos[0]; //unknown
-}
-
-
-/* Grammar.
-
-    <expr> = <combining_expr>
-
-    <combining_expr> = <unary_expr> and/or <combining_expr> |
-                       <unary_expr>
-
-    <unary_expr> = bang <unary_expr> |
-                  <primary>
-
-    <primary> = <unary_primary> arg |
-                arg <binary_primary> arg |
-                '(' <expr> ')'
-
-*/
-
-class expression;
-class test_parser
-{
-private:
-    wcstring_list_t strings;
-    wcstring_list_t errors;
-
-    expression *error(const wchar_t *fmt, ...);
-    void add_error(const wchar_t *fmt, ...);
-
-    const wcstring &arg(unsigned int idx)
-    {
-        return strings.at(idx);
-    }
-
-public:
-    test_parser(const wcstring_list_t &val) : strings(val)
-    { }
-
-    expression *parse_expression(unsigned int start, unsigned int end);
-    expression *parse_3_arg_expression(unsigned int start, unsigned int end);
-    expression *parse_4_arg_expression(unsigned int start, unsigned int end);
-    expression *parse_combining_expression(unsigned int start, unsigned int end);
-    expression *parse_unary_expression(unsigned int start, unsigned int end);
-
-    expression *parse_primary(unsigned int start, unsigned int end);
-    expression *parse_parenthentical(unsigned int start, unsigned int end);
-    expression *parse_unary_primary(unsigned int start, unsigned int end);
-    expression *parse_binary_primary(unsigned int start, unsigned int end);
-    expression *parse_just_a_string(unsigned int start, unsigned int end);
-
-    static expression *parse_args(const wcstring_list_t &args, wcstring &err);
-};
-
-struct range_t
-{
-    unsigned int start;
-    unsigned int end;
-
-    range_t(unsigned s, unsigned e) : start(s), end(e) { }
-};
-
-
-/* Base class for expressions */
-class expression
-{
-protected:
-    expression(token_t what, range_t where) : token(what), range(where) { }
-
-public:
-    const token_t token;
-    range_t range;
-
-    virtual ~expression() { }
-
-    // evaluate returns true if the expression is true (i.e. BUILTIN_TEST_SUCCESS)
-    virtual bool evaluate(wcstring_list_t &errors) = 0;
-};
-
-typedef std::auto_ptr<expression> expr_ref_t;
-
-/* Single argument like -n foo or "just a string" */
-class unary_primary : public expression
-{
-public:
-    wcstring arg;
-    unary_primary(token_t tok, range_t where, const wcstring &what) : expression(tok, where), arg(what) { }
-    bool evaluate(wcstring_list_t &errors);
-};
-
-/* Two argument primary like foo != bar */
-class binary_primary : public expression
-{
-public:
-    wcstring arg_left;
-    wcstring arg_right;
-
-    binary_primary(token_t tok, range_t where, const wcstring &left, const wcstring &right) : expression(tok, where), arg_left(left), arg_right(right)
-    { }
-    bool evaluate(wcstring_list_t &errors);
-};
-
-/* Unary operator like bang */
-class unary_operator : public expression
-{
-public:
-    expr_ref_t subject;
-    unary_operator(token_t tok, range_t where, expr_ref_t &exp) : expression(tok, where), subject(exp) { }
-    bool evaluate(wcstring_list_t &errors);
-};
-
-/* Combining expression. Contains a list of AND or OR expressions. It takes more than two so that we don't have to worry about precedence in the parser. */
-class combining_expression : public expression
-{
-public:
-    const std::vector<expression *> subjects;
-    const std::vector<token_t> combiners;
-
-    combining_expression(token_t tok, range_t where, const std::vector<expression *> &exprs, const std::vector<token_t> &combs) : expression(tok, where), subjects(exprs), combiners(combs)
-    {
-        /* We should have one more subject than combiner */
-        assert(subjects.size() == combiners.size() + 1);
-    }
-
-    /* We are responsible for destroying our expressions */
-    virtual ~combining_expression()
-    {
-        for (size_t i=0; i < subjects.size(); i++)
-        {
-            delete subjects[i];
-        }
-    }
-
-    bool evaluate(wcstring_list_t &errors);
-};
-
-/* Parenthetical expression */
-class parenthetical_expression : public expression
-{
-public:
-    expr_ref_t contents;
-    parenthetical_expression(token_t tok, range_t where, expr_ref_t &expr) : expression(tok, where), contents(expr) { }
-
-    virtual bool evaluate(wcstring_list_t &errors);
-};
-
-void test_parser::add_error(const wchar_t *fmt, ...)
-{
-    assert(fmt != NULL);
-    va_list va;
-    va_start(va, fmt);
-    this->errors.push_back(vformat_string(fmt, va));
-    va_end(va);
-}
-
-expression *test_parser::error(const wchar_t *fmt, ...)
-{
-    assert(fmt != NULL);
-    va_list va;
-    va_start(va, fmt);
-    this->errors.push_back(vformat_string(fmt, va));
-    va_end(va);
-    return NULL;
-}
-
-expression *test_parser::parse_unary_expression(unsigned int start, unsigned int end)
-{
-    if (start >= end)
-    {
-        return error(L"Missing argument at index %u", start);
-    }
-    token_t tok = token_for_string(arg(start))->tok;
-    if (tok == test_bang)
-    {
-        expr_ref_t subject(parse_unary_expression(start + 1, end));
-        if (subject.get())
-        {
-            return new unary_operator(tok, range_t(start, subject->range.end), subject);
-        }
-        else
-        {
-            return NULL;
-        }
-    }
-    else
-    {
-        return parse_primary(start, end);
-    }
-}
-
-/* Parse a combining expression (AND, OR) */
-expression *test_parser::parse_combining_expression(unsigned int start, unsigned int end)
-{
-    if (start >= end)
-        return NULL;
-
-    std::vector<expression *> subjects;
-    std::vector<token_t> combiners;
-    unsigned int idx = start;
-    bool first = true;
-
-    while (idx < end)
-    {
-
-        if (! first)
-        {
-            /* This is not the first expression, so we expect a combiner. */
-            token_t combiner = token_for_string(arg(idx))->tok;
-            if (combiner != test_combine_and && combiner != test_combine_or)
-            {
-                /* Not a combiner, we're done */
-                this->errors.insert(this->errors.begin(), format_string(L"Expected a combining operator like '-a' at index %u", idx));
-                break;
-            }
-            combiners.push_back(combiner);
-            idx++;
-        }
-
-        /* Parse another expression */
-        expression *expr = parse_unary_expression(idx, end);
-        if (! expr)
-        {
-            add_error(L"Missing argument at index %u", idx);
-            if (! first)
-            {
-                /* Clean up the dangling combiner, since it never got its right hand expression */
-                combiners.pop_back();
-            }
-            break;
-        }
-
-        /* Go to the end of this expression */
-        idx = expr->range.end;
-        subjects.push_back(expr);
-        first = false;
-    }
-
-    if (! subjects.empty())
-    {
-        /* Our new expression takes ownership of all expressions we created. The token we pass is irrelevant. */
-        return new combining_expression(test_combine_and, range_t(start, idx), subjects, combiners);
-    }
-    else
-    {
-        /* No subjects */
-        return NULL;
-    }
-}
-
-expression *test_parser::parse_unary_primary(unsigned int start, unsigned int end)
-{
-    /* We need two arguments */
-    if (start >= end)
-    {
-        return error(L"Missing argument at index %u", start);
-    }
-    if (start + 1 >= end)
-    {
-        return error(L"Missing argument at index %u", start + 1);
-    }
-
-    /* All our unary primaries are prefix, so the operator is at start. */
-    const token_info_t *info = token_for_string(arg(start));
-    if (!(info->flags & UNARY_PRIMARY))
-        return NULL;
-
-    return new unary_primary(info->tok, range_t(start, start + 2), arg(start + 1));
-}
-
-expression *test_parser::parse_just_a_string(unsigned int start, unsigned int end)
-{
-    /* Handle a string as a unary primary that is not a token of any other type.
-       e.g. 'test foo -a bar' should evaluate to true
-       We handle this with a unary primary of test_string_n
-    */
-
-    /* We need one arguments */
-    if (start >= end)
-    {
-        return error(L"Missing argument at index %u", start);
-    }
-
-    const token_info_t *info = token_for_string(arg(start));
-    if (info->tok != test_unknown)
-    {
-        return error(L"Unexpected argument type at index %u", start);
-    }
-
-    /* This is hackish; a nicer way to implement this would be with a "just a string" expression type */
-    return new unary_primary(test_string_n, range_t(start, start + 1), arg(start));
-}
-
-#if 0
-expression *test_parser::parse_unary_primary(unsigned int start, unsigned int end)
-{
-    /* We need either one or two arguments */
-    if (start >= end)
-    {
-        return error(L"Missing argument at index %u", start);
-    }
-
-    /* The index of the argument to the unary primary */
-    unsigned int arg_idx;
-
-    /* All our unary primaries are prefix, so any operator is at start. But it also may just be a string, with no operator. */
-    const token_info_t *info = token_for_string(arg(start));
-    if (info->flags & UNARY_PRIMARY)
-    {
-        /* We have an operator. Skip the operator argument */
-        arg_idx = start + 1;
-
-        /* We have some freedom here...do we allow other tokens for the argument to operate on?
-           For example, should 'test -n =' work? I say yes. So no typechecking on the next token. */
-
-    }
-    else if (info->tok == test_unknown)
-    {
-        /* "Just a string. */
-        arg_idx = start;
-    }
-    else
-    {
-        /* Here we don't allow arbitrary tokens as "just a string." I.e. 'test = -a =' should have a parse error. We could relax this at some point. */
-        return error(L"Parse error at argument index %u", start);
-    }
-
-    /* Verify we have the argument we want, i.e. test -n should fail to parse */
-    if (arg_idx >= end)
-    {
-        return error(L"Missing argument at index %u", arg_idx);
-    }
-
-    return new unary_primary(info->tok, range_t(start, arg_idx + 1), arg(arg_idx));
-}
-#endif
-
-expression *test_parser::parse_binary_primary(unsigned int start, unsigned int end)
-{
-    /* We need three arguments */
-    for (unsigned int idx = start; idx < start + 3; idx++)
-    {
-        if (idx >= end)
-        {
-            return error(L"Missing argument at index %u", idx);
-        }
-    }
-
-    /* All our binary primaries are infix, so the operator is at start + 1. */
-    const token_info_t *info = token_for_string(arg(start + 1));
-    if (!(info->flags & BINARY_PRIMARY))
-        return NULL;
-
-    return new binary_primary(info->tok, range_t(start, start + 3), arg(start), arg(start + 2));
-}
-
-expression *test_parser::parse_parenthentical(unsigned int start, unsigned int end)
-{
-    /* We need at least three arguments: open paren, argument, close paren */
-    if (start + 3 >= end)
-        return NULL;
-
-    /* Must start with an open expression */
-    const token_info_t *open_paren = token_for_string(arg(start));
-    if (open_paren->tok != test_paren_open)
-        return NULL;
-
-    /* Parse a subexpression */
-    expression *subexr_ptr = parse_expression(start + 1, end);
-    if (! subexr_ptr)
-        return NULL;
-    expr_ref_t subexpr(subexr_ptr);
-
-    /* Parse a close paren */
-    unsigned close_index = subexpr->range.end;
-    assert(close_index <= end);
-    if (close_index == end)
-    {
-        return error(L"Missing close paren at index %u", close_index);
-    }
-    const token_info_t *close_paren = token_for_string(arg(close_index));
-    if (close_paren->tok != test_paren_close)
-    {
-        return error(L"Expected close paren at index %u", close_index);
-    }
-
-    /* Success */
-    return new parenthetical_expression(test_paren_open, range_t(start, close_index+1), subexpr);
-}
-
-expression *test_parser::parse_primary(unsigned int start, unsigned int end)
-{
-    if (start >= end)
-    {
-        return error(L"Missing argument at index %u", start);
-    }
-
-    expression *expr = NULL;
-    if (! expr) expr = parse_parenthentical(start, end);
-    if (! expr) expr = parse_unary_primary(start, end);
-    if (! expr) expr = parse_binary_primary(start, end);
-    if (! expr) expr = parse_just_a_string(start, end);
-    return expr;
-}
-
-// See IEEE 1003.1 breakdown of the behavior for different parameter counts
-expression *test_parser::parse_3_arg_expression(unsigned int start, unsigned int end)
-{
-    assert(end - start == 3);
-    expression *result = NULL;
-
-    const token_info_t *center_token = token_for_string(arg(start + 1));
-    if (center_token->flags & BINARY_PRIMARY)
-    {
-        result = parse_binary_primary(start, end);
-    }
-    else if (center_token->tok == test_combine_and || center_token->tok == test_combine_or)
-    {
-        expr_ref_t left(parse_unary_expression(start, start + 1));
-        expr_ref_t right(parse_unary_expression(start + 2, start + 3));
-        if (left.get() && right.get())
-        {
-            // Transfer ownership to the vector of subjects
-            std::vector<token_t> combiners(1, center_token->tok);
-            std::vector<expression *> subjects;
-            subjects.push_back(left.release());
-            subjects.push_back(right.release());
-            result = new combining_expression(center_token->tok, range_t(start, end), subjects, combiners);
-        }
-    }
-    else
-    {
-        result = parse_unary_expression(start, end);
-    }
-    return result;
-}
-
-expression *test_parser::parse_4_arg_expression(unsigned int start, unsigned int end)
-{
-    assert(end - start == 4);
-    expression *result = NULL;
-
-    token_t first_token = token_for_string(arg(start))->tok;
-    if (first_token == test_bang)
-    {
-        expr_ref_t subject(parse_3_arg_expression(start + 1, end));
-        if (subject.get())
-        {
-            result = new unary_operator(first_token, range_t(start, subject->range.end), subject);
-        }
-    }
-    else if (first_token == test_paren_open)
-    {
-        result = parse_parenthentical(start, end);
-    }
-    else
-    {
-        result = parse_combining_expression(start, end);
-    }
-    return result;
-}
-
-
-expression *test_parser::parse_expression(unsigned int start, unsigned int end)
-{
-    if (start >= end)
-    {
-        return error(L"Missing argument at index %u", start);
-    }
-
-    unsigned int argc = end - start;
-    switch (argc)
-    {
-        case 0:
-            assert(0); //should have been caught by the above test
-            return NULL;
-
-        case 1:
-        {
-            return error(L"Missing argument at index %u", start + 1);
-        }
-        case 2:
-        {
-            return parse_unary_expression(start, end);
-        }
-
-        case 3:
-        {
-            return parse_3_arg_expression(start, end);
-        }
-
-        case 4:
-        {
-            return parse_4_arg_expression(start, end);
-        }
-
-        default:
-        {
-            return parse_combining_expression(start, end);
-        }
-    }
-}
-
-expression *test_parser::parse_args(const wcstring_list_t &args, wcstring &err)
-{
-    /* Empty list and one-arg list should be handled by caller */
-    assert(args.size() > 1);
-
-    test_parser parser(args);
-    expression *result = parser.parse_expression(0, (unsigned int)args.size());
-
-    /* Handle errors */
-    bool errored = false;
-    for (size_t i = 0; i < parser.errors.size(); i++)
-    {
-        err.append(L"test: ");
-        err.append(parser.errors.at(i));
-        err.push_back(L'\n');
-        errored = true;
-        // For now we only show the first error
-        break;
-    }
-
-    if (result)
-    {
-        /* It's also an error if there are any unused arguments. This is not detected by parse_expression() */
-        assert(result->range.end <= args.size());
-        if (result->range.end < args.size())
-        {
-            if (err.empty())
-            {
-                append_format(err, L"test: unexpected argument at index %lu: '%ls'\n", (unsigned long)result->range.end, args.at(result->range.end).c_str());
-            }
-            errored = true;
-
-            delete result;
-            result = NULL;
-        }
-    }
-
-
-    return result;
-}
-
-bool unary_primary::evaluate(wcstring_list_t &errors)
-{
-    return unary_primary_evaluate(token, arg, errors);
-}
-
-bool binary_primary::evaluate(wcstring_list_t &errors)
-{
-    return binary_primary_evaluate(token, arg_left, arg_right, errors);
-}
-
-bool unary_operator::evaluate(wcstring_list_t &errors)
-{
-    switch (token)
-    {
-        case test_bang:
-            assert(subject.get());
-            return ! subject->evaluate(errors);
-        default:
-            errors.push_back(format_string(L"Unknown token type in %s", __func__));
-            return false;
-
-    }
-}
-
-bool combining_expression::evaluate(wcstring_list_t &errors)
-{
-    switch (token)
-    {
-        case test_combine_and:
-        case test_combine_or:
-        {
-            /* One-element case */
-            if (subjects.size() == 1)
-                return subjects.at(0)->evaluate(errors);
-
-            /* Evaluate our lists, remembering that AND has higher precedence than OR. We can visualize this as a sequence of OR expressions of AND expressions. */
-            assert(combiners.size() + 1 == subjects.size());
-            assert(! subjects.empty());
-
-            size_t idx = 0, max = subjects.size();
-            bool or_result = false;
-            while (idx < max)
-            {
-                if (or_result)
-                {
-                    /* Short circuit */
-                    break;
-                }
-
-                /* Evaluate a stream of AND starting at given subject index. It may only have one element.  */
-                bool and_result = true;
-                for (; idx < max; idx++)
-                {
-                    /* Evaluate it, short-circuiting */
-                    and_result = and_result && subjects.at(idx)->evaluate(errors);
-
-                    /* If the combiner at this index (which corresponding to how we combine with the next subject) is not AND, then exit the loop */
-                    if (idx + 1 < max && combiners.at(idx) != test_combine_and)
-                    {
-                        idx++;
-                        break;
-                    }
-                }
-
-                /* OR it in */
-                or_result = or_result || and_result;
-            }
-            return or_result;
-        }
-
-        default:
-            errors.push_back(format_string(L"Unknown token type in %s", __func__));
-            return BUILTIN_TEST_FAIL;
-
-    }
-}
-
-bool parenthetical_expression::evaluate(wcstring_list_t &errors)
-{
-    return contents->evaluate(errors);
-}
-
-/* IEEE 1003.1 says nothing about what it means for two strings to be "algebraically equal". For example, should we interpret 0x10 as 0, 10, or 16? Here we use only base 10 and use wcstoll, which allows for leading + and -, and leading whitespace. This matches bash. */
-static bool parse_number(const wcstring &arg, long long *out)
-{
-    const wchar_t *str = arg.c_str();
-    wchar_t *endptr = NULL;
-    *out = wcstoll(str, &endptr, 10);
-    return endptr && *endptr == L'\0';
-}
-
-static bool binary_primary_evaluate(test_expressions::token_t token, const wcstring &left, const wcstring &right, wcstring_list_t &errors)
-{
-    using namespace test_expressions;
-    long long left_num, right_num;
-    switch (token)
-    {
-        case test_string_equal:
-            return left == right;
-
-        case test_string_not_equal:
-            return left != right;
-
-        case test_number_equal:
-            return parse_number(left, &left_num) && parse_number(right, &right_num) && left_num == right_num;
-
-        case test_number_not_equal:
-            return parse_number(left, &left_num) && parse_number(right, &right_num) && left_num != right_num;
-
-        case test_number_greater:
-            return parse_number(left, &left_num) && parse_number(right, &right_num) && left_num > right_num;
-
-        case test_number_greater_equal:
-            return parse_number(left, &left_num) && parse_number(right, &right_num) && left_num >= right_num;
-
-        case test_number_lesser:
-            return parse_number(left, &left_num) && parse_number(right, &right_num) && left_num < right_num;
-
-        case test_number_lesser_equal:
-            return parse_number(left, &left_num) && parse_number(right, &right_num) && left_num <= right_num;
-
-        default:
-            errors.push_back(format_string(L"Unknown token type in %s", __func__));
-            return false;
-    }
-}
-
-
-static bool unary_primary_evaluate(test_expressions::token_t token, const wcstring &arg, wcstring_list_t &errors)
-{
-    using namespace test_expressions;
-    struct stat buf;
-    long long num;
-    switch (token)
-    {
-        case test_filetype_b:            // "-b", for block special files
-            return !wstat(arg, &buf) && S_ISBLK(buf.st_mode);
-
-        case test_filetype_c:            // "-c", for character special files
-            return !wstat(arg, &buf) && S_ISCHR(buf.st_mode);
-
-        case test_filetype_d:            // "-d", for directories
-            return !wstat(arg, &buf) && S_ISDIR(buf.st_mode);
-
-        case test_filetype_e:            // "-e", for files that exist
-            return !wstat(arg, &buf);
-
-        case test_filetype_f:            // "-f", for for regular files
-            return !wstat(arg, &buf) && S_ISREG(buf.st_mode);
-
-        case test_filetype_G:            // "-G", for check effective group id
-            return !wstat(arg, &buf) && getegid() == buf.st_gid;
-
-        case test_filetype_g:            // "-g", for set-group-id
-            return !wstat(arg, &buf) && (S_ISGID & buf.st_mode);
-
-        case test_filetype_h:            // "-h", for symbolic links
-        case test_filetype_L:            // "-L", same as -h
-            return !lwstat(arg, &buf) && S_ISLNK(buf.st_mode);
-
-        case test_filetype_O:            // "-O", for check effective user id
-            return !wstat(arg, &buf) && geteuid() == buf.st_uid;
-
-        case test_filetype_p:            // "-p", for FIFO
-            return !wstat(arg, &buf) && S_ISFIFO(buf.st_mode);
-
-        case test_filetype_S:            // "-S", socket
-            return !wstat(arg, &buf) && S_ISSOCK(buf.st_mode);
-
-        case test_filesize_s:            // "-s", size greater than zero
-            return !wstat(arg, &buf) && buf.st_size > 0;
-
-        case test_filedesc_t:            // "-t", whether the fd is associated with a terminal
-            return parse_number(arg, &num) && num == (int)num && isatty((int)num);
-
-        case test_fileperm_r:            // "-r", read permission
-            return !waccess(arg, R_OK);
-
-        case test_fileperm_u:            // "-u", whether file is setuid
-            return !wstat(arg, &buf) && (S_ISUID & buf.st_mode);
-
-        case test_fileperm_w:            // "-w", whether file write permission is allowed
-            return !waccess(arg, W_OK);
-
-        case test_fileperm_x:            // "-x", whether file execute/search is allowed
-            return !waccess(arg, X_OK);
-
-        case test_string_n:              // "-n", non-empty string
-            return ! arg.empty();
-
-        case test_string_z:              // "-z", true if length of string is 0
-            return arg.empty();
-
-        default:
-            errors.push_back(format_string(L"Unknown token type in %s", __func__));
-            return false;
-    }
-}
-
-};
-
-/*
- * Evaluate a conditional expression given the arguments.
- * If fromtest is set, the caller is the test or [ builtin;
- * with the pointer giving the name of the command.
- * for POSIX conformance this supports a more limited range
- * of functionality.
- *
- * Return status is the final shell status, i.e. 0 for true,
- * 1 for false and 2 for error.
- */
-int builtin_test(parser_t &parser, wchar_t **argv)
-{
-    using namespace test_expressions;
-
-    /* The first argument should be the name of the command ('test') */
-    if (! argv[0])
-        return BUILTIN_TEST_FAIL;
-
-    /* Whether we are invoked with bracket '[' or not */
-    const bool is_bracket = ! wcscmp(argv[0], L"[");
-
-    size_t argc = 0;
-    while (argv[argc + 1])
-        argc++;
-
-    /* If we're bracket, the last argument ought to be ]; we ignore it. Note that argc is the number of arguments after the command name; thus argv[argc] is the last argument. */
-    if (is_bracket)
-    {
-        if (! wcscmp(argv[argc], L"]"))
-        {
-            /* Ignore the closing bracketp */
-            argc--;
-        }
-        else
-        {
-            builtin_show_error(L"[: the last argument must be ']'\n");
-            return BUILTIN_TEST_FAIL;
-        }
-
-    }
-
-    /* Collect the arguments into a list */
-    const wcstring_list_t args(argv + 1, argv + 1 + argc);
-
-    switch (argc)
-    {
-        case 0:
-        {
-            // Per 1003.1, exit false
-            return BUILTIN_TEST_FAIL;
-        }
-        case 1:
-        {
-            // Per 1003.1, exit true if the arg is non-empty
-            return args.at(0).empty() ? BUILTIN_TEST_FAIL : BUILTIN_TEST_SUCCESS;
-        }
-        default:
-        {
-            // Try parsing. If expr is not nil, we are responsible for deleting it.
-            wcstring err;
-            expression *expr = test_parser::parse_args(args, err);
-            if (! expr)
-            {
-#if 0
-                printf("Oops! test was given args:\n");
-                for (size_t i=0; i < argc; i++)
-                {
-                    printf("\t%ls\n", args.at(i).c_str());
-                }
-                printf("and returned parse error: %ls\n", err.c_str());
-#endif
-                builtin_show_error(err);
-                return BUILTIN_TEST_FAIL;
-            }
-            else
-            {
-                wcstring_list_t eval_errors;
-                bool result = expr->evaluate(eval_errors);
-                if (! eval_errors.empty())
-                {
-                    printf("test returned eval errors:\n");
-                    for (size_t i=0; i < eval_errors.size(); i++)
-                    {
-                        printf("\t%ls\n", eval_errors.at(i).c_str());
-                    }
-                }
-                delete expr;
-                return result ? BUILTIN_TEST_SUCCESS : BUILTIN_TEST_FAIL;
-            }
-        }
-    }
-    return 1;
-}

builtin_ulimit.cpp

@@ -1,512 +0,0 @@
-/** \file builtin_ulimit.c Functions defining the ulimit builtin
-
-Functions used for implementing the ulimit builtin.
-
-*/
-#include "config.h"
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <wchar.h>
-#include <wctype.h>
-#include <sys/time.h>
-#include <sys/resource.h>
-#include <unistd.h>
-#include <errno.h>
-
-#include "fallback.h"
-#include "util.h"
-
-#include "builtin.h"
-#include "common.h"
-#include "wgetopt.h"
-
-
-/**
-   Struct describing a resource limit
-*/
-struct resource_t
-{
-    /**
-       Resource id
-     */
-    int resource;
-    /**
-       Description of resource
-    */
-    const wchar_t *desc;
-    /**
-       Switch used on commandline to specify resource
-    */
-    wchar_t switch_char;
-    /**
-       The implicit multiplier used when setting getting values
-    */
-    int multiplier;
-}
-;
-
-/**
-   Array of resource_t structs, describing all known resource types.
-*/
-static const struct resource_t resource_arr[] =
-{
-    {
-        RLIMIT_CORE, L"Maximum size of core files created", L'c', 1024
-    }
-    ,
-    {
-        RLIMIT_DATA, L"Maximum size of a process’s data segment", L'd', 1024
-    }
-    ,
-    {
-        RLIMIT_FSIZE, L"Maximum size of files created by the shell", L'f', 1024
-    }
-    ,
-#ifdef RLIMIT_MEMLOCK
-    {
-        RLIMIT_MEMLOCK, L"Maximum size that may be locked into memory", L'l', 1024
-    }
-    ,
-#endif
-#ifdef RLIMIT_RSS
-    {
-        RLIMIT_RSS, L"Maximum resident set size", L'm', 1024
-    }
-    ,
-#endif
-    {
-        RLIMIT_NOFILE, L"Maximum number of open file descriptors", L'n', 1
-    }
-    ,
-    {
-        RLIMIT_STACK, L"Maximum stack size", L's', 1024
-    }
-    ,
-    {
-        RLIMIT_CPU, L"Maximum amount of cpu time in seconds", L't', 1
-    }
-    ,
-#ifdef RLIMIT_NPROC
-    {
-        RLIMIT_NPROC, L"Maximum number of processes available to a single user", L'u', 1
-    }
-    ,
-#endif
-#ifdef RLIMIT_AS
-    {
-        RLIMIT_AS, L"Maximum amount of virtual memory available to the shell", L'v', 1024
-    }
-    ,
-#endif
-    {
-        0, 0, 0, 0
-    }
-}
-;
-
-/**
-   Get the implicit multiplication factor for the specified resource limit
-*/
-static int get_multiplier(int what)
-{
-    int i;
-
-    for (i=0; resource_arr[i].desc; i++)
-    {
-        if (resource_arr[i].resource == what)
-        {
-            return resource_arr[i].multiplier;
-        }
-    }
-    return -1;
-}
-
-/**
-   Return the value for the specified resource limit. This function
-   does _not_ multiply the limit value by the multiplier constant used
-   by the commandline ulimit.
-*/
-static rlim_t get(int resource, int hard)
-{
-    struct rlimit ls;
-
-    getrlimit(resource, &ls);
-
-    return hard ? ls.rlim_max:ls.rlim_cur;
-}
-
-/**
-   Print the value of the specified resource limit
-*/
-static void print(int resource, int hard)
-{
-    rlim_t l = get(resource, hard);
-
-    if (l == RLIM_INFINITY)
-        stdout_buffer.append(L"unlimited\n");
-    else
-        append_format(stdout_buffer, L"%d\n", l / get_multiplier(resource));
-
-}
-
-/**
-   Print values of all resource limits
-*/
-static void print_all(int hard)
-{
-    int i;
-    int w=0;
-
-    for (i=0; resource_arr[i].desc; i++)
-    {
-        w=maxi(w, my_wcswidth(resource_arr[i].desc));
-    }
-
-    for (i=0; resource_arr[i].desc; i++)
-    {
-        struct rlimit ls;
-        rlim_t l;
-        getrlimit(resource_arr[i].resource, &ls);
-        l = hard ? ls.rlim_max:ls.rlim_cur;
-
-        const wchar_t *unit = ((resource_arr[i].resource==RLIMIT_CPU)?L"(seconds, ":(get_multiplier(resource_arr[i].resource)==1?L"(":L"(kB, "));
-
-        append_format(stdout_buffer,
-                      L"%-*ls %10ls-%lc) ",
-                      w,
-                      resource_arr[i].desc,
-                      unit,
-                      resource_arr[i].switch_char);
-
-        if (l == RLIM_INFINITY)
-        {
-            stdout_buffer.append(L"unlimited\n");
-        }
-        else
-        {
-            append_format(stdout_buffer, L"%d\n", l/get_multiplier(resource_arr[i].resource));
-        }
-    }
-
-}
-
-/**
-   Returns the description for the specified resource limit
-*/
-static const wchar_t *get_desc(int what)
-{
-    int i;
-
-    for (i=0; resource_arr[i].desc; i++)
-    {
-        if (resource_arr[i].resource == what)
-        {
-            return resource_arr[i].desc;
-        }
-    }
-    return L"Not a resource";
-}
-
-/**
-   Set the new value of the specified resource limit. This function
-   does _not_ multiply the limit value by the multiplier constant used
-   by the commandline ulimit.
-*/
-static int set(int resource, int hard, int soft, rlim_t value)
-{
-    struct rlimit ls;
-    getrlimit(resource, &ls);
-
-    if (hard)
-    {
-        ls.rlim_max = value;
-    }
-
-    if (soft)
-    {
-        ls.rlim_cur = value;
-
-        /*
-          Do not attempt to set the soft limit higher than the hard limit
-        */
-        if ((value == RLIM_INFINITY && ls.rlim_max != RLIM_INFINITY) ||
-                (value != RLIM_INFINITY && ls.rlim_max != RLIM_INFINITY && value > ls.rlim_max))
-        {
-            ls.rlim_cur = ls.rlim_max;
-        }
-    }
-
-    if (setrlimit(resource, &ls))
-    {
-        if (errno == EPERM)
-            append_format(stderr_buffer, L"ulimit: Permission denied when changing resource of type '%ls'\n", get_desc(resource));
-        else
-            builtin_wperror(L"ulimit");
-        return 1;
-    }
-    return 0;
-}
-
-/**
-   The ulimit builtin, used for setting resource limits. Defined in
-   builtin_ulimit.c.
-*/
-static int builtin_ulimit(parser_t &parser, wchar_t ** argv)
-{
-    int hard=0;
-    int soft=0;
-
-    int what = RLIMIT_FSIZE;
-    int report_all = 0;
-
-    int argc = builtin_count_args(argv);
-
-    woptind=0;
-
-    while (1)
-    {
-        static const struct woption
-                long_options[] =
-        {
-            {
-                L"all", no_argument, 0, 'a'
-            }
-            ,
-            {
-                L"hard", no_argument, 0, 'H'
-            }
-            ,
-            {
-                L"soft", no_argument, 0, 'S'
-            }
-            ,
-            {
-                L"core-size", no_argument, 0, 'c'
-            }
-            ,
-            {
-                L"data-size", no_argument, 0, 'd'
-            }
-            ,
-            {
-                L"file-size", no_argument, 0, 'f'
-            }
-            ,
-            {
-                L"lock-size", no_argument, 0, 'l'
-            }
-            ,
-            {
-                L"resident-set-size", no_argument, 0, 'm'
-            }
-            ,
-            {
-                L"file-descriptor-count", no_argument, 0, 'n'
-            }
-            ,
-            {
-                L"stack-size", no_argument, 0, 's'
-            }
-            ,
-            {
-                L"cpu-time", no_argument, 0, 't'
-            }
-            ,
-            {
-                L"process-count", no_argument, 0, 'u'
-            }
-            ,
-            {
-                L"virtual-memory-size", no_argument, 0, 'v'
-            }
-            ,
-            {
-                L"help", no_argument, 0, 'h'
-            }
-            ,
-            {
-                0, 0, 0, 0
-            }
-        }
-        ;
-
-
-        int opt_index = 0;
-
-        int opt = wgetopt_long(argc,
-                               argv,
-                               L"aHScdflmnstuvh",
-                               long_options,
-                               &opt_index);
-        if (opt == -1)
-            break;
-
-        switch (opt)
-        {
-            case 0:
-                if (long_options[opt_index].flag != 0)
-                    break;
-                append_format(stderr_buffer,
-                              BUILTIN_ERR_UNKNOWN,
-                              argv[0],
-                              long_options[opt_index].name);
-                builtin_print_help(parser, argv[0], stderr_buffer);
-
-                return 1;
-
-            case L'a':
-                report_all=1;
-                break;
-
-            case L'H':
-                hard=1;
-                break;
-
-            case L'S':
-                soft=1;
-                break;
-
-            case L'c':
-                what=RLIMIT_CORE;
-                break;
-
-            case L'd':
-                what=RLIMIT_DATA;
-                break;
-
-            case L'f':
-                what=RLIMIT_FSIZE;
-                break;
-#ifdef RLIMIT_MEMLOCK
-            case L'l':
-                what=RLIMIT_MEMLOCK;
-                break;
-#endif
-
-#ifdef RLIMIT_RSS
-            case L'm':
-                what=RLIMIT_RSS;
-                break;
-#endif
-
-            case L'n':
-                what=RLIMIT_NOFILE;
-                break;
-
-            case L's':
-                what=RLIMIT_STACK;
-                break;
-
-            case L't':
-                what=RLIMIT_CPU;
-                break;
-
-#ifdef RLIMIT_NPROC
-            case L'u':
-                what=RLIMIT_NPROC;
-                break;
-#endif
-
-#ifdef RLIMIT_AS
-            case L'v':
-                what=RLIMIT_AS;
-                break;
-#endif
-
-            case L'h':
-                builtin_print_help(parser, argv[0], stdout_buffer);
-                return 0;
-
-            case L'?':
-                builtin_unknown_option(parser, argv[0], argv[woptind-1]);
-                return 1;
-        }
-    }
-
-    if (report_all)
-    {
-        if (argc - woptind == 0)
-        {
-            print_all(hard);
-        }
-        else
-        {
-            stderr_buffer.append(argv[0]);
-            stderr_buffer.append(L": Too many arguments\n");
-            builtin_print_help(parser, argv[0], stderr_buffer);
-            return 1;
-        }
-
-        return 0;
-    }
-
-    switch (argc - woptind)
-    {
-        case 0:
-        {
-            /*
-              Show current limit value
-            */
-            print(what, hard);
-            break;
-        }
-
-        case 1:
-        {
-            /*
-              Change current limit value
-            */
-            rlim_t new_limit;
-            wchar_t *end;
-
-            /*
-              Set both hard and soft limits if nothing else was specified
-            */
-            if (!(hard+soft))
-            {
-                hard=soft=1;
-            }
-
-            if (wcscasecmp(argv[woptind], L"unlimited")==0)
-            {
-                new_limit = RLIM_INFINITY;
-            }
-            else if (wcscasecmp(argv[woptind], L"hard")==0)
-            {
-                new_limit = get(what, 1);
-            }
-            else if (wcscasecmp(argv[woptind], L"soft")==0)
-            {
-                new_limit = get(what, soft);
-            }
-            else
-            {
-                errno=0;
-                new_limit = wcstol(argv[woptind], &end, 10);
-                if (errno || *end)
-                {
-                    append_format(stderr_buffer,
-                                  L"%ls: Invalid limit '%ls'\n",
-                                  argv[0],
-                                  argv[woptind]);
-                    builtin_print_help(parser, argv[0], stderr_buffer);
-                    return 1;
-                }
-                new_limit *= get_multiplier(what);
-            }
-
-            return set(what, hard, soft, new_limit);
-        }
-
-        default:
-        {
-            stderr_buffer.append(argv[0]);
-            stderr_buffer.append(L": Too many arguments\n");
-            builtin_print_help(parser, argv[0], stderr_buffer);
-            return 1;
-        }
-
-    }
-    return 0;
-}

cmake/Benchmark.cmake

@@ -0,0 +1,6 @@
+# Support for benchmarking fish.
+
+add_custom_target(benchmark
+    COMMAND ${CMAKE_SOURCE_DIR}/benchmarks/driver.sh $<TARGET_FILE:fish>
+    USES_TERMINAL
+)

cmake/CheckIncludeFiles.cmake

@@ -0,0 +1,123 @@
+# Distributed under the OSI-approved BSD 3-Clause License.  See full license information in
+# doc_src/license.hdr or https://cmake.org/licensing for details.
+
+#.rst:
+# CheckIncludeFiles
+# -----------------
+#
+# Provides a macro to check if a list of one or more header files can
+# be included together in ``C``.
+#
+# .. command:: CHECK_INCLUDE_FILES
+#
+#   ::
+#
+#     CHECK_INCLUDE_FILES("<includes>" <variable> [LANGUAGE <language>])
+#
+#   Check if the given ``<includes>`` list may be included together
+#   in a ``C`` source file and store the result in an internal cache
+#   entry named ``<variable>``.  Specify the ``<includes>`` argument
+#   as a :ref:`;-list <CMake Language Lists>` of header file names.
+#
+# If LANGUAGE is set, the specified compiler will be used to perform the
+# check. Acceptable values are C and CXX.
+#
+# The following variables may be set before calling this macro to modify
+# the way the check is run:
+#
+# ``CMAKE_REQUIRED_FLAGS``
+#   string of compile command line flags
+# ``CMAKE_REQUIRED_DEFINITIONS``
+#   list of macros to define (-DFOO=bar)
+# ``CMAKE_REQUIRED_INCLUDES``
+#   list of include directories
+# ``CMAKE_REQUIRED_QUIET``
+#   execute quietly without messages
+#
+# See modules :module:`CheckIncludeFile` and :module:`CheckIncludeFileCXX`
+# to check for a single header file in ``C`` or ``CXX`` languages.
+
+macro(CHECK_INCLUDE_FILES INCLUDE VARIABLE)
+  if(NOT DEFINED "${VARIABLE}")
+    set(CMAKE_CONFIGURABLE_FILE_CONTENT "/* */\n")
+
+    if("x${ARGN}" STREQUAL "x")
+       if(CMAKE_C_COMPILER_LOADED)
+         set(_lang C)
+       elseif(CMAKE_CXX_COMPILER_LOADED)
+         set(_lang CXX)
+       else()
+         message(FATAL_ERROR "CHECK_INCLUDE_FILES needs either C or CXX language enabled")
+       endif()
+    elseif("x${ARGN}" MATCHES "^xLANGUAGE;([a-zA-Z]+)$")
+       set(_lang "${CMAKE_MATCH_1}")
+    else()
+       message(FATAL_ERROR "Unknown arguments:\n  ${ARGN}\n")
+    endif()
+
+    if(_lang STREQUAL "C")
+      set(src ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CheckIncludeFiles/${var}.c)
+    elseif(_lang STREQUAL "CXX")
+      set(src ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CheckIncludeFiles/${var}.cpp)
+    else()
+      message(FATAL_ERROR "Unknown language:\n  ${_lang}\nSupported languages: C, CXX.\n")
+    endif()
+
+    if(CMAKE_REQUIRED_INCLUDES)
+      set(CHECK_INCLUDE_FILES_INCLUDE_DIRS "-DINCLUDE_DIRECTORIES=${CMAKE_REQUIRED_INCLUDES}")
+    else()
+      set(CHECK_INCLUDE_FILES_INCLUDE_DIRS)
+    endif()
+    set(CHECK_INCLUDE_FILES_CONTENT "/* */\n")
+    set(MACRO_CHECK_INCLUDE_FILES_FLAGS ${CMAKE_REQUIRED_FLAGS})
+    foreach(FILE ${INCLUDE})
+      string(APPEND CMAKE_CONFIGURABLE_FILE_CONTENT
+        "#include <${FILE}>\n")
+    endforeach()
+    string(APPEND CMAKE_CONFIGURABLE_FILE_CONTENT
+      "\n\nint main(void){return 0;}\n")
+    configure_file("${CMAKE_ROOT}/Modules/CMakeConfigurableFile.in"
+      "${src}" @ONLY)
+
+    set(_INCLUDE ${INCLUDE}) # remove empty elements
+    if("${_INCLUDE}" MATCHES "^([^;]+);.+;([^;]+)$")
+      list(LENGTH _INCLUDE _INCLUDE_LEN)
+      set(_description "${_INCLUDE_LEN} include files ${CMAKE_MATCH_1}, ..., ${CMAKE_MATCH_2}")
+    elseif("${_INCLUDE}" MATCHES "^([^;]+);([^;]+)$")
+      set(_description "include files ${CMAKE_MATCH_1}, ${CMAKE_MATCH_2}")
+    else()
+      set(_description "include file ${_INCLUDE}")
+    endif()
+
+    if(NOT CMAKE_REQUIRED_QUIET)
+      message(STATUS "Looking for ${_description}")
+    endif()
+    try_compile(${VARIABLE}
+      ${CMAKE_BINARY_DIR}
+      ${src}
+      COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
+      CMAKE_FLAGS
+      -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_INCLUDE_FILES_FLAGS}
+      "${CHECK_INCLUDE_FILES_INCLUDE_DIRS}"
+      OUTPUT_VARIABLE OUTPUT)
+    if(${VARIABLE})
+      if(NOT CMAKE_REQUIRED_QUIET)
+        message(STATUS "Looking for ${_description} - found")
+      endif()
+      set(${VARIABLE} 1 CACHE INTERNAL "Have include ${INCLUDE}")
+      file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
+        "Determining if files ${INCLUDE} "
+        "exist passed with the following output:\n"
+        "${OUTPUT}\n\n")
+    else()
+      if(NOT CMAKE_REQUIRED_QUIET)
+        message(STATUS "Looking for ${_description} - not found")
+      endif()
+      set(${VARIABLE} "" CACHE INTERNAL "Have includes ${INCLUDE}")
+      file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
+        "Determining if files ${INCLUDE} "
+        "exist failed with the following output:\n"
+        "${OUTPUT}\nSource:\n${CMAKE_CONFIGURABLE_FILE_CONTENT}\n")
+    endif()
+  endif()
+endmacro()

cmake/ConfigureChecks.cmake

@@ -0,0 +1,250 @@
+# The following defines affect the environment configuration tests are run in:
+# CMAKE_REQUIRED_DEFINITIONS, CMAKE_REQUIRED_FLAGS, CMAKE_REQUIRED_LIBRARIES,
+# and CMAKE_REQUIRED_INCLUDES
+# `wcstod_l` is a GNU-extension, sometimes hidden behind GNU-related defines.
+# This is the case for at least Cygwin and Newlib.
+list(APPEND CMAKE_REQUIRED_DEFINITIONS -D_GNU_SOURCE=1)
+include(CheckCXXCompilerFlag)
+
+if(APPLE)
+    check_cxx_compiler_flag("-Werror=unguarded-availability" REQUIRES_UNGUARDED_AVAILABILITY)
+    if(REQUIRES_UNGUARDED_AVAILABILITY)
+        list(APPEND CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS} "-Werror=unguarded-availability")
+    endif()
+endif()
+
+# An unrecognized flag is usually a warning and not an error, which CMake apparently does
+# not pick up on. Combine it with -Werror to determine if it's actually supported.
+# This is not bulletproof; old versions of GCC only emit a warning about unrecognized warning
+# options when there are other warnings to emit :rolleyes:
+# See https://github.com/fish-shell/fish-shell/commit/fe2da0a9#commitcomment-47431659
+
+# GCC supports -Wno-redundant-move from GCC9 onwards
+check_cxx_compiler_flag("-Werror=no-redundant-move" HAS_NO_REDUNDANT_MOVE)
+if (HAS_NO_REDUNDANT_MOVE)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-redundant-move")
+endif()
+# Clang once supported -Wno-redundant-move but replaced it with a Wredundant-move option instead
+# (and it is functionally different from its older version of GCC's Wno-redundant-move).
+check_cxx_compiler_flag("-Werror=redundant-move" HAS_REDUNDANT_MOVE)
+if (HAS_REDUNDANT_MOVE)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wredundant-move")
+endif()
+
+# Try using CMake's own logic to locate curses/ncurses
+find_package(Curses)
+if(NOT ${CURSES_FOUND})
+    # CMake has trouble finding platform-specific system libraries
+    # installed to multiarch paths (e.g. /usr/lib/x86_64-linux-gnu)
+    # if not symlinked or passed in as a manual define.
+    message("Falling back to pkg-config for (n)curses detection")
+    include(FindPkgConfig)
+    pkg_search_module(CURSES REQUIRED ncurses curses)
+    set(CURSES_CURSES_LIBRARY ${CURSES_LIBRARIES})
+    set(CURSES_LIBRARY ${CURSES_LIBRARIES})
+endif()
+# Set up extra include directories for CheckIncludeFile
+list(APPEND CMAKE_REQUIRED_INCLUDES ${CURSES_INCLUDE_DIRS})
+
+# Fix undefined reference to tparm on RHEL 6 and potentially others
+# If curses is found via CMake, it also links against tinfo if it exists. But if we use our
+# fallback pkg-config logic above, we need to do this manually.
+find_library(CURSES_TINFO tinfo)
+if (CURSES_TINFO)
+    set(CURSES_LIBRARY ${CURSES_LIBRARY} ${CURSES_TINFO})
+endif()
+
+# Get threads.
+set(THREADS_PREFER_PTHREAD_FLAG ON)
+# FindThreads < 3.4.0 doesn't work for C++-only projects
+if(CMAKE_VERSION VERSION_LESS 3.4.0)
+    enable_language(C)
+endif()
+find_package(Threads REQUIRED)
+
+# Detect WSL. Does not match against native Windows/WIN32.
+if (CMAKE_HOST_SYSTEM_VERSION MATCHES ".*-Microsoft")
+  set(WSL 1)
+endif()
+
+# Set up the config.h file.
+set(PACKAGE_NAME "fish")
+set(PACKAGE_TARNAME "fish")
+include(CheckCXXSymbolExists)
+include(CheckIncludeFileCXX)
+include(CheckIncludeFiles)
+include(CheckStructHasMember)
+include(CheckCXXSourceCompiles)
+include(CheckTypeSize)
+include(CMakePushCheckState)
+check_cxx_symbol_exists(backtrace_symbols execinfo.h HAVE_BACKTRACE_SYMBOLS)
+check_cxx_symbol_exists(clock_gettime time.h HAVE_CLOCK_GETTIME)
+check_cxx_symbol_exists(ctermid_r stdio.h HAVE_CTERMID_R)
+check_struct_has_member("struct dirent" d_type dirent.h HAVE_STRUCT_DIRENT_D_TYPE LANGUAGE CXX)
+check_cxx_symbol_exists(dirfd "sys/types.h;dirent.h" HAVE_DIRFD)
+check_include_file_cxx(execinfo.h HAVE_EXECINFO_H)
+check_cxx_symbol_exists(flock sys/file.h HAVE_FLOCK)
+# futimens is new in OS X 10.13 but is a weak symbol.
+# Don't assume it exists just because we can link - it may be null.
+check_cxx_symbol_exists(futimens sys/stat.h HAVE_FUTIMENS)
+check_cxx_symbol_exists(futimes sys/time.h HAVE_FUTIMES)
+check_cxx_symbol_exists(getifaddrs ifaddrs.h HAVE_GETIFADDRS)
+check_cxx_symbol_exists(getpwent pwd.h HAVE_GETPWENT)
+check_cxx_symbol_exists(getrusage sys/resource.h HAVE_GETRUSAGE)
+check_cxx_symbol_exists(gettext libintl.h HAVE_GETTEXT)
+check_cxx_symbol_exists(killpg "sys/types.h;signal.h" HAVE_KILLPG)
+# mkostemp is in stdlib in glibc and FreeBSD, but unistd on macOS
+check_cxx_symbol_exists(mkostemp "stdlib.h;unistd.h" HAVE_MKOSTEMP)
+set(HAVE_CURSES_H ${CURSES_HAVE_CURSES_H})
+set(HAVE_NCURSES_CURSES_H ${CURSES_HAVE_NCURSES_CURSES_H})
+set(HAVE_NCURSES_H ${CURSES_HAVE_NCURSES_H})
+if(HAVE_CURSES_H)
+    check_include_files("curses.h;term.h" HAVE_TERM_H)
+endif()
+if(NOT HAVE_TERM_H)
+    check_include_file_cxx("ncurses/term.h" HAVE_NCURSES_TERM_H)
+endif()
+check_include_file_cxx(siginfo.h HAVE_SIGINFO_H)
+check_include_file_cxx(spawn.h HAVE_SPAWN_H)
+check_struct_has_member("struct stat" st_ctime_nsec "sys/stat.h" HAVE_STRUCT_STAT_ST_CTIME_NSEC
+    LANGUAGE CXX)
+check_struct_has_member("struct stat" st_mtimespec.tv_nsec "sys/stat.h"
+    HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC LANGUAGE CXX)
+check_struct_has_member("struct stat" st_mtim.tv_nsec "sys/stat.h" HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
+    LANGUAGE CXX)
+check_cxx_symbol_exists(sys_errlist stdio.h HAVE_SYS_ERRLIST)
+check_include_file_cxx(sys/ioctl.h HAVE_SYS_IOCTL_H)
+check_include_file_cxx(sys/select.h HAVE_SYS_SELECT_H)
+check_include_files("sys/types.h;sys/sysctl.h" HAVE_SYS_SYSCTL_H)
+check_include_file_cxx(termios.h HAVE_TERMIOS_H) # Needed for TIOCGWINSZ
+
+check_cxx_symbol_exists(eventfd sys/eventfd.h HAVE_EVENTFD)
+check_cxx_symbol_exists(pipe2 unistd.h HAVE_PIPE2)
+check_cxx_symbol_exists(wcscasecmp wchar.h HAVE_WCSCASECMP)
+check_cxx_symbol_exists(wcsdup wchar.h HAVE_WCSDUP)
+check_cxx_symbol_exists(wcslcpy wchar.h HAVE_WCSLCPY)
+check_cxx_symbol_exists(wcsncasecmp wchar.h HAVE_WCSNCASECMP)
+check_cxx_symbol_exists(wcsndup wchar.h HAVE_WCSNDUP)
+
+# These are for compatibility with Solaris 10, which places the following
+# in the std namespace.
+if(NOT HAVE_WCSNCASECMP)
+    check_cxx_symbol_exists(std::wcscasecmp wchar.h HAVE_STD__WCSCASECMP)
+endif()
+if(NOT HAVE_WCSDUP)
+    check_cxx_symbol_exists(std::wcsdup wchar.h HAVE_STD__WCSDUP)
+endif()
+if(NOT HAVE_WCSNCASECMP)
+    check_cxx_symbol_exists(std::wcsncasecmp wchar.h HAVE_STD__WCSNCASECMP)
+endif()
+
+# `xlocale.h` is required to find `wcstod_l` in `wchar.h` under FreeBSD,
+# but it's not present under Linux.
+check_include_files("xlocale.h" HAVE_XLOCALE_H)
+if(HAVE_XLOCALE_H)
+    list(APPEND WCSTOD_L_INCLUDES "xlocale.h")
+endif()
+list(APPEND WCSTOD_L_INCLUDES "wchar.h")
+check_cxx_symbol_exists(wcstod_l "${WCSTOD_L_INCLUDES}" HAVE_WCSTOD_L)
+
+check_cxx_symbol_exists(_sys_errs stdlib.h HAVE__SYS__ERRS)
+
+cmake_push_check_state()
+set(CMAKE_EXTRA_INCLUDE_FILES termios.h sys/ioctl.h)
+check_type_size("struct winsize" STRUCT_WINSIZE LANGUAGE CXX)
+check_cxx_symbol_exists("TIOCGWINSZ" "termios.h;sys/ioctl.h" HAVE_TIOCGWINSZ)
+if(STRUCT_WINSIZE GREATER -1 AND HAVE_TIOCGWINSZ EQUAL 1)
+  set(HAVE_WINSIZE 1)
+endif()
+cmake_pop_check_state()
+
+check_type_size("wchar_t[8]" WCHAR_T_BITS LANGUAGE CXX)
+
+set(TPARM_INCLUDES)
+if(HAVE_NCURSES_H)
+  set(TPARM_INCLUDES "${TPARM_INCLUDES}#include <ncurses.h>\n")
+elseif(HAVE_NCURSES_CURSES_H)
+  set(TPARM_INCLUDES "${TPARM_INCLUDES}#include <ncurses/curses.h>\n")
+else()
+  set(TPARM_INCLUDES "${TPARM_INCLUDES}#include <curses.h>\n")
+endif()
+
+if(HAVE_TERM_H)
+  set(TPARM_INCLUDES "${TPARM_INCLUDES}#include <term.h>\n")
+elseif(HAVE_NCURSES_TERM_H)
+  set(TPARM_INCLUDES "${TPARM_INCLUDES}#include <ncurses/term.h>\n")
+endif()
+
+# Solaris and X/Open-conforming systems have a fixed-args tparm
+cmake_push_check_state()
+list(APPEND CMAKE_REQUIRED_LIBRARIES ${CURSES_LIBRARY})
+check_cxx_source_compiles("
+#define TPARM_VARARGS
+${TPARM_INCLUDES}
+
+int main () {
+  tparm( \"\" );
+}
+"
+  TPARM_TAKES_VARARGS
+)
+
+if(TPARM_TAKES_VARARGS)
+  set(TPARM_VARARGS 1)
+else()
+  set(TPARM_SOLARIS_KLUDGE 1)
+endif()
+cmake_pop_check_state()
+
+# Work around the fact that cmake does not propagate the language standard flag into
+# the CHECK_CXX_SOURCE_COMPILES function. See CMake issue #16456.
+# Ensure we do this after the FIND_PACKAGE calls which use C, and will error on a C++
+# standards flag.
+# Also see https://github.com/fish-shell/fish-shell/issues/5865
+if(NOT POLICY CMP0067)
+  list(APPEND CMAKE_REQUIRED_FLAGS "${CMAKE_CXX${CMAKE_CXX_STANDARD}_EXTENSION_COMPILE_OPTION}")
+endif()
+
+check_cxx_source_compiles("
+#include <memory>
+
+int main () {
+  std::unique_ptr<int> foo = std::make_unique<int>();
+}
+"
+  HAVE_STD__MAKE_UNIQUE
+)
+
+# Detect support for thread_local.
+check_cxx_source_compiles("
+int main () {
+  static thread_local int x = 3;
+  (void)x;
+}
+"
+  HAVE_CX11_THREAD_LOCAL
+)
+
+check_cxx_source_compiles("
+#include <atomic>
+#include <cstdint>
+std::atomic<uint64_t> x (0);
+int main() {
+uint64_t i = x.load(std::memory_order_relaxed);
+return std::atomic_is_lock_free(&x);
+}"
+LIBATOMIC_NOT_NEEDED)
+IF (NOT LIBATOMIC_NOT_NEEDED)
+    set(ATOMIC_LIBRARY "atomic")
+endif()
+
+IF (APPLE)
+    # Check if mbrtowc implementation attempts to encode invalid UTF-8 sequences
+    # Known culprits: at least some versions of macOS (confirmed Snow Leopard and Yosemite)
+    try_run(mbrtowc_invalid_utf8_exit mbrtowc_invalid_utf8_compiles ${CMAKE_CURRENT_BINARY_DIR}
+      "${CMAKE_CURRENT_SOURCE_DIR}/cmake/checks/mbrtowc_invalid_utf8.cpp")
+    IF ("${mbrtowc_invalid_utf8_compiles}" AND ("${mbrtowc_invalid_utf8_exit}" EQUAL 1))
+        SET(HAVE_BROKEN_MBRTOWC_UTF8 1)
+    ENDIF()
+ENDIF()
+

cmake/Docs.cmake

@@ -0,0 +1,85 @@
+find_program(SPHINX_EXECUTABLE NAMES sphinx-build
+    HINTS
+    $ENV{SPHINX_DIR}
+    PATH_SUFFIXES bin
+    DOC "Sphinx documentation generator")
+
+include(FeatureSummary)
+
+set(SPHINX_SRC_DIR "${CMAKE_CURRENT_SOURCE_DIR}/doc_src")
+set(SPHINX_ROOT_DIR "${CMAKE_CURRENT_BINARY_DIR}/user_doc")
+set(SPHINX_BUILD_DIR "${SPHINX_ROOT_DIR}/build")
+set(SPHINX_CACHE_DIR "${SPHINX_ROOT_DIR}/doctrees")
+set(SPHINX_HTML_DIR "${SPHINX_ROOT_DIR}/html")
+set(SPHINX_MANPAGE_DIR "${SPHINX_ROOT_DIR}/man")
+
+# sphinx-docs uses fish_indent for highlighting.
+# Prepend the output dir of fish_indent to PATH.
+add_custom_target(sphinx-docs
+    mkdir -p ${SPHINX_HTML_DIR}/_static/
+    COMMAND env PATH="$<TARGET_FILE_DIR:fish_indent>:$$PATH"
+        ${SPHINX_EXECUTABLE}
+        -q -b html
+        -c "${SPHINX_SRC_DIR}"
+        -d "${SPHINX_CACHE_DIR}"
+        "${SPHINX_SRC_DIR}"
+        "${SPHINX_HTML_DIR}"
+    DEPENDS ${SPHINX_SRC_DIR}/fish_indent_lexer.py fish_indent
+    COMMENT "Building HTML documentation with Sphinx")
+
+# sphinx-manpages needs the fish_indent binary for the version number
+add_custom_target(sphinx-manpages
+    env PATH="$<TARGET_FILE_DIR:fish_indent>:$$PATH"
+        ${SPHINX_EXECUTABLE}
+        -q -b man
+        -c "${SPHINX_SRC_DIR}"
+        -d "${SPHINX_CACHE_DIR}"
+        "${SPHINX_SRC_DIR}"
+        # TODO: This only works if we only have section 1 manpages.
+        "${SPHINX_MANPAGE_DIR}/man1"
+    DEPENDS fish_indent
+    COMMENT "Building man pages with Sphinx")
+
+if(SPHINX_EXECUTABLE)
+    option(BUILD_DOCS "build documentation (requires Sphinx)" ON)
+else(SPHINX_EXECUTABLE)
+    option(BUILD_DOCS "build documentation (requires Sphinx)" OFF)
+endif(SPHINX_EXECUTABLE)
+
+if(BUILD_DOCS AND NOT SPHINX_EXECUTABLE)
+    message(FATAL_ERROR "build documentation selected, but sphinx-build could not be found")
+endif()
+
+if(IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/user_doc/html
+   AND IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/user_doc/man)
+    set(HAVE_PREBUILT_DOCS TRUE)
+else()
+    set(HAVE_PREBUILT_DOCS FALSE)
+endif()
+
+if(BUILD_DOCS OR HAVE_PREBUILT_DOCS)
+    set(INSTALL_DOCS ON)
+else()
+    set(INSTALL_DOCS OFF)
+endif()
+
+add_feature_info(Documentation INSTALL_DOCS "user manual and documentation")
+
+if(BUILD_DOCS)
+    configure_file("${SPHINX_SRC_DIR}/conf.py" "${SPHINX_BUILD_DIR}/conf.py" @ONLY)
+    add_custom_target(doc ALL
+                      DEPENDS sphinx-docs sphinx-manpages)
+
+    # Group docs targets into a DocsTargets folder
+    set_property(TARGET doc sphinx-docs sphinx-manpages
+                 PROPERTY FOLDER cmake/DocTargets)
+
+elseif(HAVE_PREBUILT_DOCS)
+    if(NOT CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR)
+        # Out of tree build - link the prebuilt documentation to the build tree
+        add_custom_target(link_doc ALL)
+        add_custom_command(TARGET link_doc
+            COMMAND ${CMAKE_COMMAND} -E create_symlink ${CMAKE_CURRENT_SOURCE_DIR}/user_doc ${CMAKE_CURRENT_BINARY_DIR}/user_doc
+            POST_BUILD)
+    endif()
+endif(BUILD_DOCS)

cmake/Install.cmake

@@ -0,0 +1,183 @@
+# -DLOCALEDIR="${CMAKE_INSTALL_FULL_LOCALEDIR}"
+# -DPREFIX=L"${CMAKE_INSTALL_PREFIX}"
+# -DDATADIR=L"${CMAKE_INSTALL_FULL_DATADIR}"
+# -DSYSCONFDIR=L"${CMAKE_INSTALL_FULL_SYSCONFDIR}"
+# -DBINDIR=L"${CMAKE_INSTALL_FULL_BINDIR}"
+# -DDOCDIR=L"${CMAKE_INSTALL_FULL_DOCDIR}")
+
+set(CMAKE_INSTALL_MESSAGE NEVER)
+
+set(PROGRAMS fish fish_indent fish_key_reader)
+
+set(prefix ${CMAKE_INSTALL_PREFIX})
+set(bindir ${CMAKE_INSTALL_BINDIR})
+set(sysconfdir ${CMAKE_INSTALL_SYSCONFDIR})
+set(mandir ${CMAKE_INSTALL_MANDIR})
+
+set(rel_datadir ${CMAKE_INSTALL_DATADIR})
+set(datadir ${CMAKE_INSTALL_FULL_DATADIR})
+
+set(docdir ${CMAKE_INSTALL_DOCDIR})
+
+# Comment at the top of some .in files
+set(configure_input
+"This file was generated from a corresponding .in file.\
+ DO NOT MANUALLY EDIT THIS FILE!")
+
+set(rel_completionsdir "fish/vendor_completions.d")
+set(rel_functionsdir "fish/vendor_functions.d")
+set(rel_confdir "fish/vendor_conf.d")
+
+set(extra_completionsdir
+    "${datadir}/${rel_completionsdir}"
+    CACHE STRING "Path for extra completions")
+
+set(extra_functionsdir
+    "${datadir}/${rel_functionsdir}"
+    CACHE STRING "Path for extra functions")
+
+set(extra_confdir
+    "${datadir}/${rel_confdir}"
+    CACHE STRING "Path for extra configuration")
+
+# These are the man pages that go in system manpath; all manpages go in the fish-specific manpath.
+set(MANUALS ${CMAKE_CURRENT_BINARY_DIR}/user_doc/man/man1/fish.1
+            ${CMAKE_CURRENT_BINARY_DIR}/user_doc/man/man1/fish_indent.1
+            ${CMAKE_CURRENT_BINARY_DIR}/user_doc/man/man1/fish_key_reader.1)
+
+# Determine which man page we don't want to install.
+# On OS X, don't install a man page for open, since we defeat fish's open
+# function on OS X.
+# On other operating systems, don't install a realpath man page, as they almost all have a realpath
+# command, while macOS does not.
+if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
+  set(CONDEMNED_PAGE "open.1")
+else()
+  set(CONDEMNED_PAGE "realpath.1")
+endif()
+
+# Define a function to help us create directories.
+function(FISH_CREATE_DIRS)
+  foreach(dir ${ARGV})
+    install(DIRECTORY DESTINATION ${dir})
+  endforeach(dir)
+endfunction(FISH_CREATE_DIRS)
+
+function(FISH_TRY_CREATE_DIRS)
+  foreach(dir ${ARGV})
+    if(NOT IS_ABSOLUTE ${dir})
+      set(abs_dir "\$ENV{DESTDIR}\${CMAKE_INSTALL_PREFIX}/${dir}")
+    else()
+      set(abs_dir "\$ENV{DESTDIR}${dir}")
+    endif()
+    install(SCRIPT CODE "EXECUTE_PROCESS(COMMAND mkdir -p ${abs_dir} OUTPUT_QUIET ERROR_QUIET)
+                         execute_process(COMMAND chmod 755 ${abs_dir} OUTPUT_QUIET ERROR_QUIET)
+                        ")
+  endforeach()
+endfunction(FISH_TRY_CREATE_DIRS)
+
+install(TARGETS ${PROGRAMS}
+        PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ
+                    GROUP_EXECUTE WORLD_READ WORLD_EXECUTE
+        DESTINATION ${bindir})
+
+fish_create_dirs(${sysconfdir}/fish/conf.d ${sysconfdir}/fish/completions
+    ${sysconfdir}/fish/functions)
+install(FILES etc/config.fish DESTINATION ${sysconfdir}/fish/)
+
+fish_create_dirs(${rel_datadir}/fish ${rel_datadir}/fish/completions
+                 ${rel_datadir}/fish/functions ${rel_datadir}/fish/groff
+                 ${rel_datadir}/fish/man/man1 ${rel_datadir}/fish/tools
+                 ${rel_datadir}/fish/tools/web_config
+                 ${rel_datadir}/fish/tools/web_config/js
+                 ${rel_datadir}/fish/tools/web_config/partials
+                 ${rel_datadir}/fish/tools/web_config/sample_prompts)
+
+configure_file(share/__fish_build_paths.fish.in share/__fish_build_paths.fish)
+install(FILES share/config.fish
+              ${CMAKE_CURRENT_BINARY_DIR}/share/__fish_build_paths.fish
+        DESTINATION ${rel_datadir}/fish)
+
+# Create only the vendor directories inside the prefix (#5029 / #6508)
+fish_create_dirs(${rel_datadir}/fish/vendor_completions.d ${rel_datadir}/fish/vendor_functions.d
+    ${rel_datadir}/fish/vendor_conf.d)
+
+fish_try_create_dirs(${rel_datadir}/pkgconfig)
+configure_file(fish.pc.in fish.pc.noversion @ONLY)
+
+add_custom_command(OUTPUT fish.pc
+    COMMAND sed '/Version/d' fish.pc.noversion > fish.pc
+    COMMAND printf "Version: " >> fish.pc
+    COMMAND sed 's/FISH_BUILD_VERSION=//\;s/\"//g' ${FBVF} >> fish.pc
+    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+    DEPENDS CHECK-FISH-BUILD-VERSION-FILE ${CMAKE_CURRENT_BINARY_DIR}/fish.pc.noversion)
+
+add_custom_target(build_fish_pc ALL DEPENDS fish.pc)
+
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/fish.pc
+        DESTINATION ${rel_datadir}/pkgconfig)
+
+install(DIRECTORY share/completions/
+        DESTINATION ${rel_datadir}/fish/completions
+        FILES_MATCHING PATTERN "*.fish")
+
+install(DIRECTORY share/functions/
+        DESTINATION ${rel_datadir}/fish/functions
+        FILES_MATCHING PATTERN "*.fish")
+
+install(DIRECTORY share/groff
+        DESTINATION ${rel_datadir}/fish)
+
+# CONDEMNED_PAGE is managed by the conditional above
+# Building the man pages is optional: if sphinx isn't installed, they're not built
+install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/user_doc/man/man1/
+        DESTINATION ${rel_datadir}/fish/man/man1
+        FILES_MATCHING
+        PATTERN "*.1"
+        PATTERN ${CONDEMNED_PAGE} EXCLUDE)
+
+install(PROGRAMS share/tools/create_manpage_completions.py share/tools/deroff.py
+        DESTINATION ${rel_datadir}/fish/tools/)
+
+install(DIRECTORY share/tools/web_config
+        DESTINATION ${rel_datadir}/fish/tools/
+        FILES_MATCHING
+        PATTERN "*.png"
+        PATTERN "*.css"
+        PATTERN "*.html"
+        PATTERN "*.py"
+        PATTERN "*.js"
+        PATTERN "*.fish")
+
+# Building the man pages is optional: if Sphinx isn't installed, they're not built
+install(FILES ${MANUALS} DESTINATION ${mandir}/man1/ OPTIONAL)
+install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/user_doc/html/ # Trailing slash is important!
+        DESTINATION ${docdir} OPTIONAL)
+install(FILES CHANGELOG.rst DESTINATION ${docdir})
+
+install(FILES share/lynx.lss DESTINATION ${rel_datadir}/fish/)
+
+# These files are built by cmake/gettext.cmake, but using GETTEXT_PROCESS_PO_FILES's
+# INSTALL_DESTINATION leads to them being installed as ${lang}.gmo, not fish.mo
+# The ${languages} array comes from cmake/gettext.cmake
+if(GETTEXT_FOUND)
+  foreach(lang ${languages})
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${lang}.gmo DESTINATION
+            ${CMAKE_INSTALL_LOCALEDIR}/${lang}/LC_MESSAGES/ RENAME fish.mo)
+  endforeach()
+endif()
+
+install(FILES fish.desktop DESTINATION ${rel_datadir}/applications)
+install(FILES fish.png DESTINATION ${rel_datadir}/pixmaps)
+
+# Group install targets into a InstallTargets folder
+set_property(TARGET build_fish_pc CHECK-FISH-BUILD-VERSION-FILE
+                    test_fishscript
+                    test_prep tests_buildroot_target
+             PROPERTY FOLDER cmake/InstallTargets)
+
+# Make a target build_root that installs into the buildroot directory, for testing.
+set(BUILDROOT_DIR ${CMAKE_CURRENT_BINARY_DIR}/buildroot)
+add_custom_target(build_root
+                  COMMAND DESTDIR=${BUILDROOT_DIR} ${CMAKE_COMMAND}
+                          --build ${CMAKE_CURRENT_BINARY_DIR} --target install)

cmake/Mac.cmake

@@ -0,0 +1,44 @@
+set(CMAKE_OSX_DEPLOYMENT_TARGET "10.9" CACHE STRING "Minimum OS X deployment version")
+
+# Code signing ID on Mac.
+# If this is falsey, codesigning is disabled.
+# '-' is ad-hoc codesign.
+set(MAC_CODESIGN_ID "" CACHE STRING "Mac code-signing identity")
+
+# Whether to inject the "get-task-allow" entitlement, which permits debugging
+# on the Mac.
+set(MAC_INJECT_GET_TASK_ALLOW ON CACHE BOOL "Inject get-task-allow on Mac")
+
+# When building a Mac build, it is common for fish to link against a
+# pcre2 built for the host platform (e.g. macOS 10.15) while fish wants
+# to link for macOS 10.9. This warning would be of interest for releases,
+# but is just noise for daily development. Unfortunately it has no flag
+# of its own, so suppress all linker warnings in debug builds.
+set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -w")
+
+function(CODESIGN_ON_MAC target)
+  if((APPLE) AND (MAC_CODESIGN_ID))
+    execute_process(COMMAND sw_vers "-productVersion" OUTPUT_VARIABLE OSX_VERSION)
+    if(MAC_INJECT_GET_TASK_ALLOW)
+      set(ENTITLEMENTS "--entitlements" "${CMAKE_SOURCE_DIR}/osx/fish_debug.entitlements")
+    else()
+      set(ENTITLEMENTS "")
+    endif(MAC_INJECT_GET_TASK_ALLOW)
+    if(OSX_VERSION VERSION_LESS "10.13.6")
+      # `-options runtime` is only available in OS X from 10.13.6 and up
+      add_custom_command(
+        TARGET ${target}
+        POST_BUILD
+        COMMAND codesign --force --deep ${ENTITLEMENTS} --sign "${MAC_CODESIGN_ID}" $<TARGET_FILE:${target}>
+        VERBATIM
+      )
+    else()
+      add_custom_command(
+        TARGET ${target}
+        POST_BUILD
+        COMMAND codesign --force --deep --options runtime ${ENTITLEMENTS} --sign "${MAC_CODESIGN_ID}" $<TARGET_FILE:${target}>
+        VERBATIM
+      )
+    endif()
+  endif()
+endfunction(CODESIGN_ON_MAC target)

cmake/MacApp.cmake

@@ -0,0 +1,75 @@
+# This is Mac-only.
+if (NOT APPLE)
+    return()
+endif (NOT APPLE)
+
+# The source tree containing certain macOS resources.
+set(OSX_DIR ${CMAKE_CURRENT_SOURCE_DIR}/osx)
+
+set(RESOURCE_FILES
+    ${OSX_DIR}/launch_fish.scpt
+    ${OSX_DIR}/fish_term_icon.icns
+    ${CMAKE_CURRENT_SOURCE_DIR}/build_tools/osx_package_scripts/add-shell
+    ${OSX_DIR}/install.sh
+)
+
+# Resource files must be present in the source list.
+add_executable(fish_macapp EXCLUDE_FROM_ALL
+    ${OSX_DIR}/osx_fish_launcher.m
+    ${RESOURCE_FILES}
+)
+
+# Compute the version. Note this is done at generation time, not build time,
+# so cmake must be re-run after version changes for the app to be updated. But
+# generally this will be run by make_pkg.sh which always re-runs cmake.
+execute_process(
+    COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/build_tools/git_version_gen.sh --stdout
+    COMMAND cut -d- -f1
+    OUTPUT_VARIABLE FISH_SHORT_VERSION
+    OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+
+# Note CMake appends .app, so the real output name will be fish.app. 
+# This target does not include the 'base' resource.
+set_target_properties(fish_macapp PROPERTIES OUTPUT_NAME "fish")
+
+find_library(FOUNDATION_LIB Foundation)
+target_link_libraries(fish_macapp ${FOUNDATION_LIB})
+
+set_target_properties(fish_macapp PROPERTIES
+    MACOSX_BUNDLE TRUE
+    MACOSX_BUNDLE_INFO_PLIST ${OSX_DIR}/CMakeMacAppInfo.plist.in
+    MACOSX_BUNDLE_GUI_IDENTIFIER "com.ridiculousfish.fish-shell"
+    MACOSX_BUNDLE_SHORT_VERSION_STRING ${FISH_SHORT_VERSION}
+    RESOURCE "${RESOURCE_FILES}"
+)
+
+# The fish Mac app contains a fish installation inside the package.
+# Here is where it gets built.
+# Copy into the fish mac app after.
+set(MACAPP_FISH_BUILDROOT ${CMAKE_CURRENT_BINARY_DIR}/macapp_buildroot/base)
+
+add_custom_command(TARGET fish_macapp POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E make_directory ${MACAPP_FISH_BUILDROOT}
+    COMMAND DESTDIR=${MACAPP_FISH_BUILDROOT} ${CMAKE_COMMAND}
+            --build ${CMAKE_CURRENT_BINARY_DIR} --target install
+    COMMAND ${CMAKE_COMMAND} -E copy_directory ${MACAPP_FISH_BUILDROOT}/..
+            $<TARGET_BUNDLE_CONTENT_DIR:fish_macapp>/Resources/
+    VERBATIM
+)
+
+# The entitlements file.
+set(MACAPP_ENTITLEMENTS "${CMAKE_SOURCE_DIR}/osx/MacApp.entitlements")
+
+# Target to sign the macapp.
+# Note that a POST_BUILD step happens before resources are copied,
+# and therefore would be too early.
+add_custom_target(signed_fish_macapp
+    DEPENDS fish_macapp "${MACAPP_ENTITLEMENTS}"
+    COMMAND codesign --force --deep
+            --options runtime
+            --entitlements "${MACAPP_ENTITLEMENTS}"
+            --sign "${MAC_CODESIGN_ID}"
+            $<TARGET_BUNDLE_DIR:fish_macapp>
+    VERBATIM
+)

cmake/PCRE2.cmake

@@ -0,0 +1,43 @@
+# PCRE2 needs some settings.
+set(PCRE2_WIDTH ${WCHAR_T_BITS})
+set(PCRE2_BUILD_PCRE2_8 OFF CACHE BOOL "Build 8bit PCRE2 library")
+set(PCRE2_BUILD_PCRE2_${PCRE2_WIDTH} ON CACHE BOOL "Build ${PCRE2_WIDTH}bit PCRE2 library")
+set(PCRE2_SHOW_REPORT OFF CACHE BOOL "Show the final configuration report")
+set(PCRE2_BUILD_TESTS OFF CACHE BOOL "Build tests")
+set(PCRE2_BUILD_PCRE2GREP OFF CACHE BOOL "Build pcre2grep")
+
+set(PCRE2_MIN_VERSION 10.21)
+
+# Look for a system-installed PCRE2.
+find_library(SYS_PCRE2_LIB pcre2-${PCRE2_WIDTH})
+find_path(SYS_PCRE2_INCLUDE_DIR pcre2.h)
+
+# We can either use the system-installed PCRE or our bundled version.
+# This is controlled by the cache variable FISH_USE_SYSTEM_PCRE2.
+# Here we compute the default value for that variable.
+if ((APPLE) AND (MAC_CODESIGN_ID))
+  # On Mac, a codesigned fish will refuse to load a non-codesigned PCRE2
+  # (e.g. from Homebrew) so default to bundled PCRE2.
+  set(USE_SYS_PCRE2_DEFAULT OFF)
+elseif((NOT SYS_PCRE2_LIB) OR (NOT SYS_PCRE2_INCLUDE_DIR))
+  # We did not find system PCRE2, so default to bundled.
+  set(USE_SYS_PCRE2_DEFAULT OFF)
+else()
+  # Default to using the system PCRE2, which was found.
+  set(USE_SYS_PCRE2_DEFAULT ON)
+endif()
+
+set(FISH_USE_SYSTEM_PCRE2 ${USE_SYS_PCRE2_DEFAULT} CACHE BOOL
+  "Use PCRE2 from the system, instead of bundled with fish")
+
+if(FISH_USE_SYSTEM_PCRE2)
+  set(PCRE2_LIB "${SYS_PCRE2_LIB}")
+  set(PCRE2_INCLUDE_DIR "${SYS_PCRE2_INCLUDE_DIR}")
+  message(STATUS "Using system PCRE2 library ${PCRE2_INCLUDE_DIR}")
+else()
+  message(STATUS "Using bundled PCRE2 library")
+  add_subdirectory(pcre2 EXCLUDE_FROM_ALL)
+  set(PCRE2_INCLUDE_DIR ${CMAKE_BINARY_DIR}/pcre2)
+  set(PCRE2_LIB pcre2-${PCRE2_WIDTH})
+endif(FISH_USE_SYSTEM_PCRE2)
+include_directories(${PCRE2_INCLUDE_DIR})

cmake/Tests.cmake

@@ -0,0 +1,147 @@
+# Define fish_tests.
+add_executable(fish_tests EXCLUDE_FROM_ALL
+               src/fish_tests.cpp)
+fish_link_deps_and_sign(fish_tests)
+
+# The "test" directory.
+set(TEST_DIR ${CMAKE_CURRENT_BINARY_DIR}/test)
+
+# The directory into which fish is installed.
+set(TEST_INSTALL_DIR ${TEST_DIR}/buildroot)
+
+# The directory where the tests expect to find the fish root (./bin, etc)
+set(TEST_ROOT_DIR ${TEST_DIR}/root)
+
+# Copy tests files.
+file(GLOB TESTS_FILES tests/*)
+add_custom_target(tests_dir DEPENDS tests)
+
+if(NOT FISH_IN_TREE_BUILD)
+    add_custom_command(TARGET tests_dir
+                       COMMAND ${CMAKE_COMMAND} -E copy_directory
+                       ${CMAKE_SOURCE_DIR}/tests/ ${CMAKE_BINARY_DIR}/tests/
+                       COMMENT "Copying test files to binary dir"
+                       VERBATIM)
+
+    add_dependencies(fish_tests tests_dir)
+endif()
+
+# Copy littlecheck.py
+configure_file(build_tools/littlecheck.py littlecheck.py COPYONLY)
+
+# Copy pexpect_helper.py
+configure_file(build_tools/pexpect_helper.py pexpect_helper.py COPYONLY)
+
+# Make the directory in which to run tests.
+# Also symlink fish to where the tests expect it to be.
+# Lastly put fish_test_helper there too.
+add_custom_target(tests_buildroot_target
+                  COMMAND ${CMAKE_COMMAND} -E make_directory ${TEST_INSTALL_DIR}
+                  COMMAND DESTDIR=${TEST_INSTALL_DIR} ${CMAKE_COMMAND}
+                          --build ${CMAKE_CURRENT_BINARY_DIR} --target install
+                  COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_BINARY_DIR}/fish_test_helper
+                          ${TEST_INSTALL_DIR}/${CMAKE_INSTALL_PREFIX}/bin
+                  COMMAND ${CMAKE_COMMAND} -E create_symlink
+                          ${TEST_INSTALL_DIR}/${CMAKE_INSTALL_PREFIX}
+                          ${TEST_ROOT_DIR}
+                  DEPENDS fish fish_test_helper)
+
+if(NOT FISH_IN_TREE_BUILD)
+  # We need to symlink share/functions for the tests.
+  # This should be simplified.
+  add_custom_target(symlink_functions
+    COMMAND ${CMAKE_COMMAND} -E create_symlink
+            ${CMAKE_CURRENT_SOURCE_DIR}/share/functions
+            ${CMAKE_CURRENT_BINARY_DIR}/share/functions)
+  add_dependencies(tests_buildroot_target symlink_functions)
+else()
+  add_custom_target(symlink_functions)
+endif()
+
+# Prep the environment for running the unit tests.
+add_custom_target(test_prep
+    # Add directories hard-coded into the tests
+    COMMAND ${CMAKE_COMMAND} -E remove_directory ${TEST_DIR}/data
+    COMMAND ${CMAKE_COMMAND} -E make_directory ${TEST_DIR}/data
+    COMMAND ${CMAKE_COMMAND} -E remove_directory ${TEST_DIR}/temp
+    COMMAND ${CMAKE_COMMAND} -E make_directory ${TEST_DIR}/temp
+
+    # Add the XDG_* directories
+    COMMAND ${CMAKE_COMMAND} -E remove_directory ${TEST_DIR}/xdg_data
+    COMMAND ${CMAKE_COMMAND} -E make_directory ${TEST_DIR}/xdg_data
+    COMMAND ${CMAKE_COMMAND} -E remove_directory ${TEST_DIR}/xdg_config
+    COMMAND ${CMAKE_COMMAND} -E make_directory ${TEST_DIR}/xdg_config
+    COMMAND ${CMAKE_COMMAND} -E remove_directory ${TEST_DIR}/xdg_runtime
+    COMMAND ${CMAKE_COMMAND} -E make_directory ${TEST_DIR}/xdg_runtime
+
+    DEPENDS tests_buildroot_target tests_dir
+    USES_TERMINAL)
+
+# Define our individual tests.
+# Each test is conceptually independent.
+# However when running all tests, we want to run them serially for sanity's sake.
+# So define both a normal target, and a serial variant which enforces ordering.
+foreach(TESTTYPE test serial_test)
+  add_custom_target(${TESTTYPE}_low_level
+    COMMAND env XDG_DATA_HOME=${CMAKE_CURRENT_BINARY_DIR}/test/xdg_data
+                XDG_CONFIG_HOME=${CMAKE_CURRENT_BINARY_DIR}/test/xdg_config
+                XDG_RUNTIME_HOME=${CMAKE_CURRENT_BINARY_DIR}/test/xdg_runtime
+                ./fish_tests
+    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+    DEPENDS fish_tests
+    USES_TERMINAL)
+
+  add_custom_target(${TESTTYPE}_fishscript
+                    COMMAND
+                        cd tests &&
+                        env XDG_DATA_HOME=${CMAKE_CURRENT_BINARY_DIR}/test/xdg_data
+                            XDG_CONFIG_HOME=${CMAKE_CURRENT_BINARY_DIR}/test/xdg_config
+                            XDG_RUNTIME_HOME=${CMAKE_CURRENT_BINARY_DIR}/test/xdg_runtime
+                        ${TEST_ROOT_DIR}/bin/fish test.fish
+                    DEPENDS test_prep
+                    USES_TERMINAL)
+
+  add_custom_target(${TESTTYPE}_interactive
+      COMMAND cd tests &&
+                env XDG_DATA_HOME=${CMAKE_CURRENT_BINARY_DIR}/test/xdg_data
+                    XDG_CONFIG_HOME=${CMAKE_CURRENT_BINARY_DIR}/test/xdg_config
+                    XDG_RUNTIME_HOME=${CMAKE_CURRENT_BINARY_DIR}/test/xdg_runtime
+                ${TEST_ROOT_DIR}/bin/fish interactive.fish
+      DEPENDS test_prep
+      USES_TERMINAL)
+endforeach(TESTTYPE)
+
+# Now add a dependency chain between the serial versions.
+# This ensures they run in order.
+add_dependencies(serial_test_low_level test_prep)
+add_dependencies(serial_test_fishscript serial_test_low_level)
+add_dependencies(serial_test_interactive serial_test_fishscript)
+
+
+add_custom_target(serial_test_high_level
+                  DEPENDS serial_test_interactive serial_test_fishscript)
+
+# Create the 'test' target.
+# Set a policy so CMake stops complaining about the name 'test'.
+cmake_policy(PUSH)
+
+if(${CMAKE_VERSION} VERSION_LESS 3.11.0 AND POLICY CMP0037)
+  cmake_policy(SET CMP0037 OLD)
+endif()
+add_custom_target(test)
+cmake_policy(POP)
+add_dependencies(test serial_test_high_level)
+
+# Group test targets into a TestTargets folder
+set_property(TARGET test tests_dir
+                    test_low_level
+                    test_fishscript
+                    test_interactive
+                    test_fishscript test_prep
+                    tests_buildroot_target
+                    serial_test_high_level
+                    serial_test_low_level
+                    serial_test_fishscript
+                    serial_test_interactive
+                    symlink_functions
+             PROPERTY FOLDER cmake/TestTargets)

cmake/Version.cmake

@@ -0,0 +1,55 @@
+# This file adds commands to manage the FISH-BUILD-VERSION-FILE (hereafter
+# FBVF). This file exists in the build directory and is used to populate the
+# documentation and also the version string in fish_version.o (printed with
+# `echo $version` and also fish --version). The essential idea is that we are
+# going to invoke git_version_gen.sh, which will update the
+# FISH-BUILD-VERSION-FILE only if it needs to change; this is what makes
+# incremental rebuilds fast.
+#
+# This code is delicate, with the chief subtlety revolving around Ninja. A
+# natural and naive approach would tell the generated build system that FBVF is
+# a dependency of fish_version.o, and that git_version_gen.sh updates it. Make
+# will then invoke the script, check the timestamp on fish_version.o and FBVF,
+# see that FBVF is earlier, and then not rebuild fish_version.o. Ninja,
+# however, decides what to build up-front and will unconditionally rebuild
+# fish_version.o.
+#
+# To avoid this with Ninja, we want to hook into its 'restat' option which we
+# can do through the BYPRODUCTS feature of CMake. See
+# https://cmake.org/cmake/help/latest/policy/CMP0058.html
+#
+# Unfortunately BYPRODUCTS behaves strangely with the Makefile generator: it
+# marks FBVF as generated and then CMake itself will `touch` it on every build,
+# meaning that using BYPRODUCTS will cause fish_version.o to be rebuilt
+# unconditionally with the Makefile generator. Thus we want to use the
+# natural-and-naive approach for Makefiles.
+
+# **IMPORTANT** If you touch these build rules, please test both Ninja and
+# Makefile generators with both a clean and dirty git tree. Verify that both
+# generated build systems rebuild fish when the git tree goes from dirty to
+# clean (and vice versa), and verify they do NOT rebuild it when the git tree
+# stays the same (incremental builds must be fast).
+
+# Just a handy abbreviation.
+set(FBVF FISH-BUILD-VERSION-FILE)
+
+# TODO: find a cleaner way to do this.
+IF (${CMAKE_GENERATOR} STREQUAL Ninja)
+  set(FBVF-OUTPUT fish-build-version-witness.txt)
+  set(CFBVF-BYPRODUCTS ${FBVF})
+else(${CMAKE_GENERATOR} STREQUAL Ninja)
+  set(FBVF-OUTPUT ${FBVF})
+  set(CFBVF-BYPRODUCTS)
+endif(${CMAKE_GENERATOR} STREQUAL Ninja)
+
+# Set up the version targets
+add_custom_target(CHECK-FISH-BUILD-VERSION-FILE
+                  COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/build_tools/git_version_gen.sh ${CMAKE_CURRENT_BINARY_DIR}
+                  WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+                  BYPRODUCTS ${CFBVF-BYPRODUCTS})
+
+add_custom_command(OUTPUT ${FBVF-OUTPUT}
+                    DEPENDS CHECK-FISH-BUILD-VERSION-FILE)
+
+# Abbreviation for the target.
+set(CFBVF CHECK-FISH-BUILD-VERSION-FILE)

cmake/checks/mbrtowc_invalid_utf8.cpp

@@ -0,0 +1,18 @@
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <cwchar>
+
+// Check whether the runtime mbrtowc implementation attempts to encode
+// invalid UTF-8 values.
+
+int main() {
+    // TODO: I'm not sure how to enforce a UTF-8 locale without overriding the language
+    char sample[] = "hello world";
+    sample[0] |= 0xF8;
+    wchar_t wsample[100] {};
+    std::mbstate_t state = std::mbstate_t();
+    int res = std::mbrtowc(wsample, sample, strlen(sample), &state);
+
+    return res < 0 ? 0 : 1;
+}

cmake/gettext.cmake

@@ -0,0 +1,43 @@
+set(languages de en fr nb nn pl pt_BR sv zh_CN)
+
+include(FeatureSummary)
+
+option(WITH_GETTEXT "translate messages if gettext is available" ON)
+if(WITH_GETTEXT)
+  find_package(Intl QUIET)
+  find_package(Gettext)
+  if(GETTEXT_FOUND)
+      set(HAVE_GETTEXT 1)
+      include_directories(${Intl_INCLUDE_DIR})
+  endif()
+endif()
+add_feature_info(gettext GETTEXT_FOUND "translate messages with gettext")
+
+# Define translations
+if(GETTEXT_FOUND)
+  foreach(lang ${languages})
+    # Our translations aren't set up entirely as CMake expects, so installation is done in
+    # cmake/Install.cmake instead of using INSTALL_DESTINATION
+    gettext_process_po_files(${lang} ALL
+                             PO_FILES po/${lang}.po)
+  endforeach()
+endif()
+
+cmake_push_check_state()
+set(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES} ${Intl_INCLUDE_DIR})
+set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${Intl_LIBRARIES})
+# libintl.h can be compiled into the stdlib on some GLibC systems
+if(Intl_FOUND AND Intl_LIBRARIES)
+  set(LIBINTL_INCLUDE "#include <libintl.h>")
+endif()
+check_cxx_source_compiles("
+${LIBINTL_INCLUDE}
+#include <stdlib.h>
+int main () {
+    extern int  _nl_msg_cat_cntr;
+    int tmp = _nl_msg_cat_cntr;
+    exit(tmp);
+}
+"
+    HAVE__NL_MSG_CAT_CNTR)
+cmake_pop_check_state()

color.cpp

@@ -1,365 +0,0 @@
-/** \file color.cpp Color class implementation
-*/
-
-#include "color.h"
-#include "fallback.h"
-
-bool rgb_color_t::try_parse_special(const wcstring &special)
-{
-    bzero(&data, sizeof data);
-    const wchar_t *name = special.c_str();
-    if (! wcscasecmp(name, L"normal"))
-    {
-        this->type = type_normal;
-    }
-    else if (! wcscasecmp(name, L"reset"))
-    {
-        this->type = type_reset;
-    }
-    else if (! wcscasecmp(name, L"ignore"))
-    {
-        this->type = type_ignore;
-    }
-    else
-    {
-        this->type = type_none;
-    }
-    return this->type != type_none;
-}
-
-static int parse_hex_digit(wchar_t x)
-{
-    switch (x)
-    {
-        case L'0':
-            return 0x0;
-        case L'1':
-            return 0x1;
-        case L'2':
-            return 0x2;
-        case L'3':
-            return 0x3;
-        case L'4':
-            return 0x4;
-        case L'5':
-            return 0x5;
-        case L'6':
-            return 0x6;
-        case L'7':
-            return 0x7;
-        case L'8':
-            return 0x8;
-        case L'9':
-            return 0x9;
-        case L'a':
-        case L'A':
-            return 0xA;
-        case L'b':
-        case L'B':
-            return 0xB;
-        case L'c':
-        case L'C':
-            return 0xC;
-        case L'd':
-        case L'D':
-            return 0xD;
-        case L'e':
-        case L'E':
-            return 0xE;
-        case L'f':
-        case L'F':
-            return 0xF;
-        default:
-            return -1;
-    }
-}
-
-static unsigned long squared_difference(long p1, long p2)
-{
-    unsigned long diff = (unsigned long)labs(p1 - p2);
-    return diff * diff;
-}
-
-static unsigned char convert_color(const unsigned char rgb[3], const uint32_t *colors, size_t color_count)
-{
-    long r = rgb[0], g = rgb[1], b = rgb[2];
-    unsigned long best_distance = (unsigned long)(-1);
-    unsigned char best_index = (unsigned char)(-1);
-    for (unsigned char idx = 0; idx < color_count; idx++)
-    {
-        uint32_t color = colors[idx];
-        long test_r = (color >> 16) & 0xFF, test_g = (color >> 8) & 0xFF, test_b = (color >> 0) & 0xFF;
-        unsigned long distance = squared_difference(r, test_r) + squared_difference(g, test_g) + squared_difference(b, test_b);
-        if (distance <= best_distance)
-        {
-            best_index = idx;
-            best_distance = distance;
-        }
-    }
-    return best_index;
-
-}
-
-bool rgb_color_t::try_parse_rgb(const wcstring &name)
-{
-    bzero(&data, sizeof data);
-    /* We support the following style of rgb formats (case insensitive):
-        #FA3
-        #F3A035
-        FA3
-        F3A035
-    */
-
-    size_t digit_idx = 0, len = name.size();
-
-    /* Skip any leading # */
-    if (len > 0 && name.at(0) == L'#')
-        digit_idx++;
-
-    bool success = false;
-    size_t i;
-    if (len - digit_idx == 3)
-    {
-        // type FA3
-        for (i=0; i < 3; i++)
-        {
-            int val = parse_hex_digit(name.at(digit_idx++));
-            if (val < 0) break;
-            data.rgb[i] = val*16+val;
-        }
-        success = (i == 3);
-    }
-    else if (len - digit_idx == 6)
-    {
-        // type F3A035
-        for (i=0; i < 3; i++)
-        {
-            int hi = parse_hex_digit(name.at(digit_idx++));
-            int lo = parse_hex_digit(name.at(digit_idx++));
-            if (lo < 0 || hi < 0) break;
-            data.rgb[i] = hi*16+lo;
-        }
-        success = (i == 3);
-    }
-    if (success)
-    {
-        this->type = type_rgb;
-    }
-    return success;
-}
-
-struct named_color_t
-{
-    const wchar_t * name;
-    unsigned char idx;
-    unsigned char rgb[3];
-};
-
-static const named_color_t named_colors[11] =
-{
-    {L"black", 0, {0, 0, 0}},
-    {L"red", 1, {0xFF, 0, 0}},
-    {L"green", 2, {0, 0xFF, 0}},
-    {L"brown", 3, {0x72, 0x50, 0}},
-    {L"yellow", 3, {0xFF, 0xFF, 0}},
-    {L"blue", 4, {0, 0, 0xFF}},
-    {L"magenta", 5, {0xFF, 0, 0xFF}},
-    {L"purple", 5, {0xFF, 0, 0xFF}},
-    {L"cyan", 6, {0, 0xFF, 0xFF}},
-    {L"white", 7, {0xFF, 0xFF, 0xFF}},
-    {L"normal", 8, {0xFF, 0xFF, 0XFF}}
-};
-
-wcstring_list_t rgb_color_t::named_color_names(void)
-{
-    size_t count = sizeof named_colors / sizeof *named_colors;
-    wcstring_list_t result;
-    result.reserve(count);
-    for (size_t i=0; i < count; i++)
-    {
-        result.push_back(named_colors[i].name);
-    }
-    return result;
-}
-
-bool rgb_color_t::try_parse_named(const wcstring &str)
-{
-    bzero(&data, sizeof data);
-    size_t max = sizeof named_colors / sizeof *named_colors;
-    for (size_t idx=0; idx < max; idx++)
-    {
-        if (0 == wcscasecmp(str.c_str(), named_colors[idx].name))
-        {
-            data.name_idx = named_colors[idx].idx;
-            this->type = type_named;
-            return true;
-        }
-    }
-    return false;
-}
-
-static const wchar_t *name_for_color_idx(unsigned char idx)
-{
-    size_t max = sizeof named_colors / sizeof *named_colors;
-    for (size_t i=0; i < max; i++)
-    {
-        if (named_colors[i].idx == idx)
-        {
-            return named_colors[i].name;
-        }
-    }
-    return L"unknown";
-}
-
-rgb_color_t::rgb_color_t(unsigned char t, unsigned char i) : type(t), flags(), data()
-{
-    data.name_idx = i;
-}
-
-rgb_color_t rgb_color_t::normal()
-{
-    return rgb_color_t(type_normal);
-}
-rgb_color_t rgb_color_t::reset()
-{
-    return rgb_color_t(type_reset);
-}
-rgb_color_t rgb_color_t::ignore()
-{
-    return rgb_color_t(type_ignore);
-}
-rgb_color_t rgb_color_t::none()
-{
-    return rgb_color_t(type_none);
-}
-rgb_color_t rgb_color_t::white()
-{
-    return rgb_color_t(type_named, 7);
-}
-rgb_color_t rgb_color_t::black()
-{
-    return rgb_color_t(type_named, 0);
-}
-
-static unsigned char term8_color_for_rgb(const unsigned char rgb[3])
-{
-    const uint32_t kColors[] =
-    {
-        0x000000, //Black
-        0xFF0000, //Red
-        0x00FF00, //Green
-        0xFFFF00, //Yellow
-        0x0000FF, //Blue
-        0xFF00FF, //Magenta
-        0x00FFFF, //Cyan
-        0xFFFFFF, //White
-    };
-    return convert_color(rgb, kColors, sizeof kColors / sizeof *kColors);
-}
-
-static unsigned char term256_color_for_rgb(const unsigned char rgb[3])
-{
-    const uint32_t kColors[240] =
-    {
-        0x000000, 0x00005f, 0x000087, 0x0000af, 0x0000d7, 0x0000ff, 0x005f00, 0x005f5f,
-        0x005f87, 0x005faf, 0x005fd7, 0x005fff, 0x008700, 0x00875f, 0x008787, 0x0087af,
-        0x0087d7, 0x0087ff, 0x00af00, 0x00af5f, 0x00af87, 0x00afaf, 0x00afd7, 0x00afff,
-        0x00d700, 0x00d75f, 0x00d787, 0x00d7af, 0x00d7d7, 0x00d7ff, 0x00ff00, 0x00ff5f,
-        0x00ff87, 0x00ffaf, 0x00ffd7, 0x00ffff, 0x5f0000, 0x5f005f, 0x5f0087, 0x5f00af,
-        0x5f00d7, 0x5f00ff, 0x5f5f00, 0x5f5f5f, 0x5f5f87, 0x5f5faf, 0x5f5fd7, 0x5f5fff,
-        0x5f8700, 0x5f875f, 0x5f8787, 0x5f87af, 0x5f87d7, 0x5f87ff, 0x5faf00, 0x5faf5f,
-        0x5faf87, 0x5fafaf, 0x5fafd7, 0x5fafff, 0x5fd700, 0x5fd75f, 0x5fd787, 0x5fd7af,
-        0x5fd7d7, 0x5fd7ff, 0x5fff00, 0x5fff5f, 0x5fff87, 0x5fffaf, 0x5fffd7, 0x5fffff,
-        0x870000, 0x87005f, 0x870087, 0x8700af, 0x8700d7, 0x8700ff, 0x875f00, 0x875f5f,
-        0x875f87, 0x875faf, 0x875fd7, 0x875fff, 0x878700, 0x87875f, 0x878787, 0x8787af,
-        0x8787d7, 0x8787ff, 0x87af00, 0x87af5f, 0x87af87, 0x87afaf, 0x87afd7, 0x87afff,
-        0x87d700, 0x87d75f, 0x87d787, 0x87d7af, 0x87d7d7, 0x87d7ff, 0x87ff00, 0x87ff5f,
-        0x87ff87, 0x87ffaf, 0x87ffd7, 0x87ffff, 0xaf0000, 0xaf005f, 0xaf0087, 0xaf00af,
-        0xaf00d7, 0xaf00ff, 0xaf5f00, 0xaf5f5f, 0xaf5f87, 0xaf5faf, 0xaf5fd7, 0xaf5fff,
-        0xaf8700, 0xaf875f, 0xaf8787, 0xaf87af, 0xaf87d7, 0xaf87ff, 0xafaf00, 0xafaf5f,
-        0xafaf87, 0xafafaf, 0xafafd7, 0xafafff, 0xafd700, 0xafd75f, 0xafd787, 0xafd7af,
-        0xafd7d7, 0xafd7ff, 0xafff00, 0xafff5f, 0xafff87, 0xafffaf, 0xafffd7, 0xafffff,
-        0xd70000, 0xd7005f, 0xd70087, 0xd700af, 0xd700d7, 0xd700ff, 0xd75f00, 0xd75f5f,
-        0xd75f87, 0xd75faf, 0xd75fd7, 0xd75fff, 0xd78700, 0xd7875f, 0xd78787, 0xd787af,
-        0xd787d7, 0xd787ff, 0xd7af00, 0xd7af5f, 0xd7af87, 0xd7afaf, 0xd7afd7, 0xd7afff,
-        0xd7d700, 0xd7d75f, 0xd7d787, 0xd7d7af, 0xd7d7d7, 0xd7d7ff, 0xd7ff00, 0xd7ff5f,
-        0xd7ff87, 0xd7ffaf, 0xd7ffd7, 0xd7ffff, 0xff0000, 0xff005f, 0xff0087, 0xff00af,
-        0xff00d7, 0xff00ff, 0xff5f00, 0xff5f5f, 0xff5f87, 0xff5faf, 0xff5fd7, 0xff5fff,
-        0xff8700, 0xff875f, 0xff8787, 0xff87af, 0xff87d7, 0xff87ff, 0xffaf00, 0xffaf5f,
-        0xffaf87, 0xffafaf, 0xffafd7, 0xffafff, 0xffd700, 0xffd75f, 0xffd787, 0xffd7af,
-        0xffd7d7, 0xffd7ff, 0xffff00, 0xffff5f, 0xffff87, 0xffffaf, 0xffffd7, 0xffffff,
-        0x080808, 0x121212, 0x1c1c1c, 0x262626, 0x303030, 0x3a3a3a, 0x444444, 0x4e4e4e,
-        0x585858, 0x626262, 0x6c6c6c, 0x767676, 0x808080, 0x8a8a8a, 0x949494, 0x9e9e9e,
-        0xa8a8a8, 0xb2b2b2, 0xbcbcbc, 0xc6c6c6, 0xd0d0d0, 0xdadada, 0xe4e4e4, 0xeeeeee
-    };
-    return 16 + convert_color(rgb, kColors, sizeof kColors / sizeof *kColors);
-}
-
-unsigned char rgb_color_t::to_term256_index() const
-{
-    assert(type == type_rgb);
-    return term256_color_for_rgb(data.rgb);
-}
-
-unsigned char rgb_color_t::to_name_index() const
-{
-    assert(type == type_named || type == type_rgb);
-    if (type == type_named)
-    {
-        return data.name_idx;
-    }
-    else if (type == type_rgb)
-    {
-        return term8_color_for_rgb(data.rgb);
-    }
-    else
-    {
-        /* This is an error */
-        return (unsigned char)(-1);
-    }
-}
-
-void rgb_color_t::parse(const wcstring &str)
-{
-    bool success = false;
-    if (! success) success = try_parse_special(str);
-    if (! success) success = try_parse_named(str);
-    if (! success) success = try_parse_rgb(str);
-    if (! success)
-    {
-        bzero(this->data.rgb, sizeof this->data.rgb);
-        this->type = type_none;
-    }
-}
-
-rgb_color_t::rgb_color_t(const wcstring &str)
-{
-    this->parse(str);
-}
-
-rgb_color_t::rgb_color_t(const std::string &str)
-{
-    this->parse(str2wcstring(str));
-}
-
-wcstring rgb_color_t::description() const
-{
-    switch (type)
-    {
-        case type_none:
-            return L"none";
-        case type_named:
-            return format_string(L"named(%d: %ls)", (int)data.name_idx, name_for_color_idx(data.name_idx));
-        case type_rgb:
-            return format_string(L"rgb(0x%02x%02x%02x)", data.rgb[0], data.rgb[1], data.rgb[2]);
-        case type_reset:
-            return L"reset";
-        case type_normal:
-            return L"normal";
-        case type_ignore:
-            return L"ignore";
-        default:
-            abort();
-            return L"";
-    }
-}

color.h

@@ -1,177 +0,0 @@
-/** \file color.h Color class.
-  */
-#ifndef FISH_COLOR_H
-#define FISH_COLOR_H
-
-#include <stdint.h>
-#include <cstddef>
-#include "config.h"
-#include "common.h"
-
-
-/* A type that represents a color. We work hard to keep it at a size of 4 bytes. */
-class rgb_color_t
-{
-
-    /* Types */
-    enum
-    {
-        type_none,
-        type_named,
-        type_rgb,
-        type_normal,
-        type_reset,
-        type_ignore
-    };
-    unsigned char type:4;
-
-    /* Flags */
-    enum
-    {
-        flag_bold = 1 << 0,
-        flag_underline = 1 << 1
-    };
-    unsigned char flags:4;
-
-    union
-    {
-        unsigned char name_idx; //0-10
-        unsigned char rgb[3];
-    } data;
-
-    /** Try parsing a special color name like "normal" */
-    bool try_parse_special(const wcstring &str);
-
-    /** Try parsing an rgb color like "#F0A030" */
-    bool try_parse_rgb(const wcstring &str);
-
-    /** Try parsing an explicit color name like "magenta" */
-    bool try_parse_named(const wcstring &str);
-
-    /* Parsing entry point */
-    void parse(const wcstring &str);
-
-    /** Private constructor */
-    explicit rgb_color_t(unsigned char t, unsigned char i=0);
-
-public:
-
-    /** Default constructor of type none */
-    explicit rgb_color_t() : type(type_none), flags(), data() {}
-
-    /** Parse a color from a string */
-    explicit rgb_color_t(const wcstring &str);
-    explicit rgb_color_t(const std::string &str);
-
-    /** Returns white */
-    static rgb_color_t white();
-
-    /** Returns black */
-    static rgb_color_t black();
-
-    /** Returns the reset special color */
-    static rgb_color_t reset();
-
-    /** Returns the normal special color */
-    static rgb_color_t normal();
-
-    /** Returns the ignore special color */
-    static rgb_color_t ignore();
-
-    /** Returns the none special color */
-    static rgb_color_t none();
-
-    /** Returns whether the color is the ignore special color */
-    bool is_ignore(void) const
-    {
-        return type == type_ignore;
-    }
-
-    /** Returns whether the color is the normal special color */
-    bool is_normal(void) const
-    {
-        return type == type_normal;
-    }
-
-    /** Returns whether the color is the reset special color */
-    bool is_reset(void) const
-    {
-        return type == type_reset;
-    }
-
-    /** Returns whether the color is the none special color */
-    bool is_none(void) const
-    {
-        return type == type_none;
-    }
-
-    /** Returns whether the color is a named color (like "magenta") */
-    bool is_named(void) const
-    {
-        return type == type_named;
-    }
-
-    /** Returns whether the color is specified via RGB components */
-    bool is_rgb(void) const
-    {
-        return type == type_rgb;
-    }
-
-    /** Returns whether the color is special, that is, not rgb or named */
-    bool is_special(void) const
-    {
-        return type != type_named && type != type_rgb;
-    }
-
-    /** Returns a description of the color */
-    wcstring description() const;
-
-    /** Returns the name index for the given color. Requires that the color be named or RGB. */
-    unsigned char to_name_index() const;
-
-    /** Returns the term256 index for the given color. Requires that the color be named or RGB. */
-    unsigned char to_term256_index() const;
-
-    /** Returns whether the color is bold */
-    bool is_bold() const
-    {
-        return !!(flags & flag_bold);
-    }
-
-    /** Set whether the color is bold */
-    void set_bold(bool x)
-    {
-        if (x) flags |= flag_bold;
-        else flags &= ~flag_bold;
-    }
-
-    /** Returns whether the color is underlined */
-    bool is_underline() const
-    {
-        return !!(flags & flag_underline);
-    }
-
-    /** Set whether the color is underlined */
-    void set_underline(bool x)
-    {
-        if (x) flags |= flag_underline;
-        else flags &= ~flag_underline;
-    }
-
-    /** Compare two colors for equality */
-    bool operator==(const rgb_color_t &other) const
-    {
-        return type == other.type && ! memcmp(&data, &other.data, sizeof data);
-    }
-
-    /** Compare two colors for inequality */
-    bool operator!=(const rgb_color_t &other) const
-    {
-        return !(*this == other);
-    }
-
-    /** Returns the names of all named colors */
-    static wcstring_list_t named_color_names(void);
-};
-
-#endif

common.h

@@ -1,819 +0,0 @@
-/** \file common.h
-	Prototypes for various functions, mostly string utilities, that are used by most parts of fish.
-*/
-
-#ifndef FISH_COMMON_H
-/**
-   Header guard
-*/
-#define FISH_COMMON_H
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <wchar.h>
-#include <termios.h>
-#include <string>
-#include <sstream>
-#include <vector>
-#include <pthread.h>
-#include <string.h>
-
-#include <errno.h>
-#include <assert.h>
-#include "util.h"
-
-/**
-   Avoid writing the type name twice in a common "static_cast-initialization".
-   Caveat: This doesn't work with type names containing commas!
-*/
-#define CAST_INIT(type, dst, src) type dst = static_cast<type >(src)
-
-class completion_t;
-
-/* Common string type */
-typedef std::wstring wcstring;
-typedef std::vector<wcstring> wcstring_list_t;
-
-/**
-   Maximum number of bytes used by a single utf-8 character
-*/
-#define MAX_UTF8_BYTES 6
-
-/**
-   This is in the unicode private use area.
-*/
-#define ENCODE_DIRECT_BASE 0xf100
-
-/**
-  Highest legal ascii value
-*/
-#define ASCII_MAX 127u
-
-/**
-  Highest legal 16-bit unicode value
-*/
-#define UCS2_MAX 0xffffu
-
-/**
-  Highest legal byte value
-*/
-#define BYTE_MAX 0xffu
-
-/**
-  Escape special fish syntax characters like the semicolon
- */
-#define UNESCAPE_SPECIAL 1
-
-/**
-  Allow incomplete escape sequences
- */
-#define UNESCAPE_INCOMPLETE 2
-
-/* Flags for the escape() and escape_string() functions */
-enum
-{
-    /** Escape all characters, including magic characters like the semicolon */
-    ESCAPE_ALL = 1 << 0,
-
-    /** Do not try to use 'simplified' quoted escapes, and do not use empty quotes as the empty string */
-    ESCAPE_NO_QUOTED = 1 << 1,
-
-    /** Do not escape tildes */
-    ESCAPE_NO_TILDE = 1 << 2
-};
-typedef unsigned int escape_flags_t;
-
-/**
- Helper macro for errors
- */
-#define VOMIT_ON_FAILURE(a) do { if (0 != (a)) { int err = errno; fprintf(stderr, "%s failed on line %d in file %s: %d (%s)\n", #a, __LINE__, __FILE__, err, strerror(err)); abort(); }} while (0)
-
-/** Exits without invoking destructors (via _exit), useful for code after fork. */
-void exit_without_destructors(int code) __attribute__((noreturn));
-
-/**
-	Save the shell mode on startup so we can restore them on exit
-*/
-extern struct termios shell_modes;
-
-/**
-   The character to use where the text has been truncated. Is an
-   ellipsis on unicode system and a $ on other systems.
-*/
-extern wchar_t ellipsis_char;
-
-/* Character representing an omitted newline at the end of text */
-extern wchar_t omitted_newline_char;
-
-/**
-   The verbosity level of fish. If a call to debug has a severity
-   level higher than \c debug_level, it will not be printed.
-*/
-extern int debug_level;
-
-/**
-   Profiling flag. True if commands should be profiled.
-*/
-extern char *profile;
-
-/**
-   Name of the current program. Should be set at startup. Used by the
-   debug function.
-*/
-extern const wchar_t *program_name;
-
-/**
-   This macro is used to check that an input argument is not null. It
-   is a bit lika a non-fatal form of assert. Instead of exit-ing on
-   failure, the current function is ended at once. The second
-   parameter is the return value of the current function on failure.
-*/
-#define CHECK( arg, retval )											\
-	if (!(arg)) 														\
-	{																	\
-		debug( 0,														\
-			   "function %s called with null value for argument %s. ",  \
-			   __func__,												\
-			   #arg );													\
-		bugreport();													\
-		show_stackframe();												\
-		return retval;													\
-	}
-
-/**
-   Pause for input, then exit the program. If supported, print a backtrace first.
-*/
-#define FATAL_EXIT()											\
-	{															\
-		char exit_read_buff;			\
-		show_stackframe();										\
-		read( 0, &exit_read_buff, 1 );			\
-		exit_without_destructors( 1 );												\
-	}															\
- 
-
-/**
-   Exit program at once, leaving an error message about running out of memory.
-*/
-#define DIE_MEM()														\
-	{																	\
-		fwprintf( stderr,												\
-				  L"fish: Out of memory on line %ld of file %s, shutting down fish\n", \
-				  (long)__LINE__,												\
-				  __FILE__ );											\
-		FATAL_EXIT();														\
-	}
-
-/**
-   Check if signals are blocked. If so, print an error message and
-   return from the function performing this check.
-*/
-#define CHECK_BLOCK(retval) 											\
-	if (signal_is_blocked()) 											\
-	{																	\
-		debug( 0,														\
-			    "function %s called while blocking signals. ",  		\
-			   __func__);												\
-		bugreport();													\
-		show_stackframe();												\
-		return retval;													\
-	}
-
-/**
-   Shorthand for wgettext call
-*/
-#define _(wstr) wgettext(wstr)
-
-/**
-   Noop, used to tell xgettext that a string should be translated,
-   even though it is not directly sent to wgettext.
-*/
-#define N_(wstr) wstr
-
-/**
-   Check if the specified string element is a part of the specified string list
- */
-#define contains( str,... ) contains_internal( str, __VA_ARGS__, NULL )
-
-/**
-  Print a stack trace to stderr
-*/
-void show_stackframe();
-
-
-/**
-   Read a line from the stream f into the string. Returns
-   the number of bytes read or -1 on failure.
-
-   If the carriage return character is encountered, it is
-   ignored. fgetws() considers the line to end if reading the file
-   results in either a newline (L'\n') character, the null (L'\\0')
-   character or the end of file (WEOF) character.
-*/
-int fgetws2(wcstring *s, FILE *f);
-
-
-/**
- Returns a  wide character string equivalent of the
- specified multibyte character string
-
- This function encodes illegal character sequences in a reversible
- way using the private use area.
- */
-wcstring str2wcstring(const char *in);
-wcstring str2wcstring(const char *in, size_t len);
-wcstring str2wcstring(const std::string &in);
-
-/**
-   Returns a newly allocated multibyte character string equivalent of
-   the specified wide character string
-
-   This function decodes illegal character sequences in a reversible
-   way using the private use area.
-*/
-char *wcs2str(const wchar_t *in);
-char *wcs2str(const wcstring &in);
-std::string wcs2string(const wcstring &input);
-
-/** Test if a string prefixes another. Returns true if a is a prefix of b */
-bool string_prefixes_string(const wcstring &proposed_prefix, const wcstring &value);
-bool string_prefixes_string(const wchar_t *proposed_prefix, const wcstring &value);
-
-/** Test if a string is a suffix of another */
-bool string_suffixes_string(const wcstring &proposed_suffix, const wcstring &value);
-bool string_suffixes_string(const wchar_t *proposed_suffix, const wcstring &value);
-
-/** Test if a string prefixes another without regard to case. Returns true if a is a prefix of b */
-bool string_prefixes_string_case_insensitive(const wcstring &proposed_prefix, const wcstring &value);
-
-enum fuzzy_match_type_t
-{
-    /* We match the string exactly: FOOBAR matches FOOBAR */
-    fuzzy_match_exact = 0,
-
-    /* We match a prefix of the string: FO matches FOOBAR */
-    fuzzy_match_prefix,
-
-    /* We match the string exactly, but in a case insensitive way: foobar matches FOOBAR */
-    fuzzy_match_case_insensitive,
-
-    /* We match a prefix of the string, in a case insensitive way: foo matches FOOBAR */
-    fuzzy_match_prefix_case_insensitive,
-
-    /* We match a substring of the string: OOBA matches FOOBAR */
-    fuzzy_match_substring,
-
-    /* A subsequence match with insertions only: FBR matches FOOBAR */
-    fuzzy_match_subsequence_insertions_only,
-
-    /* We don't match the string */
-    fuzzy_match_none
-};
-
-/* Indicates where a match type requires replacing the entire token */
-static inline bool match_type_requires_full_replacement(fuzzy_match_type_t t)
-{
-    switch (t)
-    {
-        case fuzzy_match_exact:
-        case fuzzy_match_prefix:
-            return false;
-        default:
-            return true;
-    }
-}
-
-/* Indicates where a match shares a prefix with the string it matches */
-static inline bool match_type_shares_prefix(fuzzy_match_type_t t)
-{
-    switch (t)
-    {
-        case fuzzy_match_exact:
-        case fuzzy_match_prefix:
-        case fuzzy_match_case_insensitive:
-        case fuzzy_match_prefix_case_insensitive:
-            return true;
-        default:
-            return false;
-    }
-}
-
-/** Test if string is a fuzzy match to another */
-struct string_fuzzy_match_t
-{
-    enum fuzzy_match_type_t type;
-
-    /* Strength of the match. The value depends on the type. Lower is stronger. */
-    size_t match_distance_first;
-    size_t match_distance_second;
-
-    /* Constructor */
-    string_fuzzy_match_t(enum fuzzy_match_type_t t, size_t distance_first = 0, size_t distance_second = 0);
-
-    /* Return -1, 0, 1 if this match is (respectively) better than, equal to, or worse than rhs */
-    int compare(const string_fuzzy_match_t &rhs) const;
-};
-
-/* Compute a fuzzy match for a string. If maximum_match is not fuzzy_match_none, limit the type to matches at or below that type. */
-string_fuzzy_match_t string_fuzzy_match_string(const wcstring &string, const wcstring &match_against, fuzzy_match_type_t limit_type = fuzzy_match_none);
-
-
-/** Test if a list contains a string using a linear search. */
-bool list_contains_string(const wcstring_list_t &list, const wcstring &str);
-
-
-void assert_is_main_thread(const char *who);
-#define ASSERT_IS_MAIN_THREAD_TRAMPOLINE(x) assert_is_main_thread(x)
-#define ASSERT_IS_MAIN_THREAD() ASSERT_IS_MAIN_THREAD_TRAMPOLINE(__FUNCTION__)
-
-void assert_is_background_thread(const char *who);
-#define ASSERT_IS_BACKGROUND_THREAD_TRAMPOLINE(x) assert_is_background_thread(x)
-#define ASSERT_IS_BACKGROUND_THREAD() ASSERT_IS_BACKGROUND_THREAD_TRAMPOLINE(__FUNCTION__)
-
-/* Useful macro for asserting that a lock is locked. This doesn't check whether this thread locked it, which it would be nice if it did, but here it is anyways. */
-void assert_is_locked(void *mutex, const char *who, const char *caller);
-#define ASSERT_IS_LOCKED(x) assert_is_locked((void *)(&x), #x, __FUNCTION__)
-
-/** Format the specified size (in bytes, kilobytes, etc.) into the specified stringbuffer. */
-wcstring format_size(long long sz);
-
-/** Version of format_size that does not allocate memory. */
-void format_size_safe(char buff[128], unsigned long long sz);
-
-/** Our crappier versions of debug which is guaranteed to not allocate any memory, or do anything other than call write(). This is useful after a call to fork() with threads. */
-void debug_safe(int level, const char *msg, const char *param1 = NULL, const char *param2 = NULL, const char *param3 = NULL, const char *param4 = NULL, const char *param5 = NULL, const char *param6 = NULL, const char *param7 = NULL, const char *param8 = NULL, const char *param9 = NULL, const char *param10 = NULL, const char *param11 = NULL, const char *param12 = NULL);
-
-/** Writes out a long safely */
-void format_long_safe(char buff[128], long val);
-void format_long_safe(wchar_t buff[128], long val);
-
-
-template<typename T>
-T from_string(const wcstring &x)
-{
-    T result;
-    std::wstringstream stream(x);
-    stream >> result;
-    return result;
-}
-
-template<typename T>
-T from_string(const std::string &x)
-{
-    T result = T();
-    std::stringstream stream(x);
-    stream >> result;
-    return result;
-}
-
-template<typename T>
-wcstring to_string(const T &x)
-{
-    std::wstringstream stream;
-    stream << x;
-    return stream.str();
-}
-
-/* wstringstream is a huge memory pig. Let's provide some specializations where we can. */
-template<>
-inline wcstring to_string(const long &x)
-{
-    wchar_t buff[128];
-    format_long_safe(buff, x);
-    return wcstring(buff);
-}
-
-template<>
-inline bool from_string(const std::string &x)
-{
-    return ! x.empty() && strchr("YTyt1", x.at(0));
-}
-
-template<>
-inline bool from_string(const wcstring &x)
-{
-    return ! x.empty() && wcschr(L"YTyt1", x.at(0));
-}
-
-template<>
-inline wcstring to_string(const int &x)
-{
-    return to_string(static_cast<long>(x));
-}
-
-wchar_t **make_null_terminated_array(const wcstring_list_t &lst);
-char **make_null_terminated_array(const std::vector<std::string> &lst);
-
-/* Helper class for managing a null-terminated array of null-terminated strings (of some char type) */
-template <typename CharType_t>
-class null_terminated_array_t
-{
-    CharType_t **array;
-
-    /* No assignment or copying */
-    void operator=(null_terminated_array_t rhs);
-    null_terminated_array_t(const null_terminated_array_t &);
-
-    typedef std::vector<std::basic_string<CharType_t> > string_list_t;
-
-    size_t size() const
-    {
-        size_t len = 0;
-        if (array != NULL)
-        {
-            while (array[len] != NULL)
-            {
-                len++;
-            }
-        }
-        return len;
-    }
-
-    void free(void)
-    {
-        ::free((void *)array);
-        array = NULL;
-    }
-
-public:
-    null_terminated_array_t() : array(NULL) { }
-    null_terminated_array_t(const string_list_t &argv) : array(make_null_terminated_array(argv))
-    {
-    }
-
-    ~null_terminated_array_t()
-    {
-        this->free();
-    }
-
-    void set(const string_list_t &argv)
-    {
-        this->free();
-        this->array = make_null_terminated_array(argv);
-    }
-
-    const CharType_t * const *get() const
-    {
-        return array;
-    }
-
-    void clear()
-    {
-        this->free();
-    }
-};
-
-/* Helper function to convert from a null_terminated_array_t<wchar_t> to a null_terminated_array_t<char_t> */
-void convert_wide_array_to_narrow(const null_terminated_array_t<wchar_t> &arr, null_terminated_array_t<char> *output);
-
-/* Helper class to cache a narrow version of a wcstring in a malloc'd buffer, so that we can read it after fork() */
-class narrow_string_rep_t
-{
-private:
-    const char *str;
-
-    /* No copying */
-    narrow_string_rep_t &operator=(const narrow_string_rep_t &);
-    narrow_string_rep_t(const narrow_string_rep_t &x);
-
-public:
-    ~narrow_string_rep_t()
-    {
-        free((void *)str);
-    }
-
-    narrow_string_rep_t() : str(NULL) {}
-
-    void set(const wcstring &s)
-    {
-        free((void *)str);
-        str = wcs2str(s.c_str());
-    }
-
-    const char *get() const
-    {
-        return str;
-    }
-};
-
-bool is_forked_child();
-
-/* Basic scoped lock class */
-class scoped_lock
-{
-    pthread_mutex_t *lock_obj;
-    bool locked;
-
-    /* No copying */
-    scoped_lock &operator=(const scoped_lock &);
-    scoped_lock(const scoped_lock &);
-
-public:
-    void lock(void);
-    void unlock(void);
-    scoped_lock(pthread_mutex_t &mutex);
-    ~scoped_lock();
-};
-
-
-/**
-   A scoped manager to save the current value of some variable, and optionally
-   set it to a new value. On destruction it restores the variable to its old
-   value.
-
-   This can be handy when there are multiple code paths to exit a block.
-*/
-template <typename T>
-class scoped_push
-{
-    T * const ref;
-    T saved_value;
-    bool restored;
-
-public:
-    scoped_push(T *r): ref(r), saved_value(*r), restored(false)
-    {
-    }
-
-    scoped_push(T *r, const T &new_value) : ref(r), saved_value(*r), restored(false)
-    {
-        *r = new_value;
-    }
-
-    ~scoped_push()
-    {
-        restore();
-    }
-
-    void restore()
-    {
-        if (!restored)
-        {
-            std::swap(*ref, saved_value);
-            restored = true;
-        }
-    }
-};
-
-
-/* Wrapper around wcstok */
-class wcstokenizer
-{
-    wchar_t *buffer, *str, *state;
-    const wcstring sep;
-
-    /* No copying */
-    wcstokenizer &operator=(const wcstokenizer &);
-    wcstokenizer(const wcstokenizer &);
-
-public:
-    wcstokenizer(const wcstring &s, const wcstring &separator);
-    bool next(wcstring &result);
-    ~wcstokenizer();
-};
-
-/**
- Appends a path component, with a / if necessary
- */
-void append_path_component(wcstring &path, const wcstring &component);
-
-wcstring format_string(const wchar_t *format, ...);
-wcstring vformat_string(const wchar_t *format, va_list va_orig);
-void append_format(wcstring &str, const wchar_t *format, ...);
-void append_formatv(wcstring &str, const wchar_t *format, va_list ap);
-
-/**
-   Returns a newly allocated wide character string array equivalent of
-   the specified multibyte character string array
-*/
-char **wcsv2strv(const wchar_t * const *in);
-
-/**
-   Test if the given string is a valid variable name.
-
-   \return null if this is a valid name, and a pointer to the first invalid character otherwise
-*/
-
-wchar_t *wcsvarname(const wchar_t *str);
-
-
-/**
-   Test if the given string is a valid function name.
-
-   \return null if this is a valid name, and a pointer to the first invalid character otherwise
-*/
-
-const wchar_t *wcsfuncname(const wchar_t *str);
-
-/**
-   Test if the given string is valid in a variable name
-
-   \return 1 if this is a valid name, 0 otherwise
-*/
-
-int wcsvarchr(wchar_t chr);
-
-
-/**
-   A wcswidth workalike. Fish uses this since the regular wcswidth seems flaky.
-*/
-int my_wcswidth(const wchar_t *c);
-
-/**
-   This functions returns the end of the quoted substring beginning at
-   \c in. The type of quoting character is detemrined by examining \c
-   in. Returns 0 on error.
-
-   \param in the position of the opening quote
-*/
-wchar_t *quote_end(const wchar_t *in);
-
-/**
-   A call to this function will reset the error counter. Some
-   functions print out non-critical error messages. These should check
-   the error_count before, and skip printing the message if
-   MAX_ERROR_COUNT messages have been printed. The error_reset()
-   should be called after each interactive command executes, to allow
-   new messages to be printed.
-*/
-void error_reset();
-
-/**
-   This function behaves exactly like a wide character equivalent of
-   the C function setlocale, except that it will also try to detect if
-   the user is using a Unicode character set, and if so, use the
-   unicode ellipsis character as ellipsis, instead of '$'.
-*/
-wcstring wsetlocale(int category, const wchar_t *locale);
-
-/**
-   Checks if \c needle is included in the list of strings specified. A warning is printed if needle is zero.
-
-   \param needle the string to search for in the list
-
-   \return zero if needle is not found, of if needle is null, non-zero otherwise
-*/
-__sentinel bool contains_internal(const wchar_t *needle, ...);
-__sentinel bool contains_internal(const wcstring &needle, ...);
-
-/**
-   Call read while blocking the SIGCHLD signal. Should only be called
-   if you _know_ there is data available for reading, or the program
-   will hang until there is data.
-*/
-long read_blocked(int fd, void *buf, size_t count);
-
-/**
-   Loop a write request while failure is non-critical. Return -1 and set errno
-   in case of critical error.
- */
-ssize_t write_loop(int fd, const char *buff, size_t count);
-
-/**
-   Loop a read request while failure is non-critical. Return -1 and set errno
-   in case of critical error.
- */
-ssize_t read_loop(int fd, void *buff, size_t count);
-
-
-/**
-   Issue a debug message with printf-style string formating and
-   automatic line breaking. The string will begin with the string \c
-   program_name, followed by a colon and a whitespace.
-
-   Because debug is often called to tell the user about an error,
-   before using wperror to give a specific error message, debug will
-   never ever modify the value of errno.
-
-   \param level the priority of the message. Lower number means higher priority. Messages with a priority_number higher than \c debug_level will be ignored..
-   \param msg the message format string.
-
-   Example:
-
-   <code>debug( 1, L"Pi = %.3f", M_PI );</code>
-
-   will print the string 'fish: Pi = 3.141', given that debug_level is 1 or higher, and that program_name is 'fish'.
-*/
-void debug(int level, const char *msg, ...);
-void debug(int level, const wchar_t *msg, ...);
-
-/**
-   Replace special characters with backslash escape sequences. Newline is
-   replaced with \n, etc.
-
-   \param in The string to be escaped
-   \param escape_all Whether all characters wich hold special meaning in fish (Pipe, semicolon, etc,) should be escaped, or only unprintable characters
-   \return The escaped string, or 0 if there is not enough memory
-*/
-
-wchar_t *escape(const wchar_t *in, escape_flags_t flags);
-wcstring escape_string(const wcstring &in, escape_flags_t flags);
-
-/**
-   Expand backslashed escapes and substitute them with their unescaped
-   counterparts. Also optionally change the wildcards, the tilde
-   character and a few more into constants which are defined in a
-   private use area of Unicode. This assumes wchar_t is a unicode
-   character set.
-
-   The result must be free()d. The original string is not modified. If
-   an invalid sequence is specified, 0 is returned.
-
-*/
-wchar_t *unescape(const wchar_t * in,
-                  int escape_special);
-
-bool unescape_string(wcstring &str,
-                     int escape_special);
-
-
-/**
-    Returns the width of the terminal window, so that not all
-    functions that use these values continually have to keep track of
-    it separately.
-
-    Only works if common_handle_winch is registered to handle winch signals.
-*/
-int common_get_width();
-/**
-   Returns the height of the terminal window, so that not all
-   functions that use these values continually have to keep track of
-   it separatly.
-
-   Only works if common_handle_winch is registered to handle winch signals.
-*/
-int common_get_height();
-
-/**
-  Handle a window change event by looking up the new window size and
-  saving it in an internal variable used by common_get_wisth and
-  common_get_height().
-*/
-void common_handle_winch(int signal);
-
-/**
-   Write paragraph of output to the specified stringbuffer, and redo
-   the linebreaks to fit the current screen.
-*/
-void write_screen(const wcstring &msg, wcstring &buff);
-
-/**
-   Tokenize the specified string into the specified wcstring_list_t.
-   \param val the input string. The contents of this string is not changed.
-   \param out the list in which to place the elements.
-*/
-void tokenize_variable_array(const wcstring &val, wcstring_list_t &out);
-
-/**
-   Make sure the specified direcotry exists. If needed, try to create
-   it and any currently not existing parent directories..
-
-   \return 0 if, at the time of function return the directory exists, -1 otherwise.
-*/
-int create_directory(const wcstring &d);
-
-/**
-   Print a short message about how to file a bug report to stderr
-*/
-void bugreport();
-
-/**
-   Return the number of seconds from the UNIX epoch, with subsecond
-   precision. This function uses the gettimeofday function, and will
-   have the same precision as that function.
-
-   If an error occurs, NAN is returned.
- */
-double timef();
-
-/**
-	Call the following function early in main to set the main thread.
-    This is our replacement for pthread_main_np().
- */
-void set_main_thread();
-bool is_main_thread();
-
-/** Configures thread assertions for testing */
-void configure_thread_assertions_for_testing();
-
-/** Set up a guard to complain if we try to do certain things (like take a lock) after calling fork */
-void setup_fork_guards(void);
-
-/** Save the value of tcgetpgrp so we can restore it on exit */
-void save_term_foreground_process_group(void);
-void restore_term_foreground_process_group(void);
-
-/** Return whether we are the child of a fork */
-bool is_forked_child(void);
-void assert_is_not_forked_child(const char *who);
-#define ASSERT_IS_NOT_FORKED_CHILD_TRAMPOLINE(x) assert_is_not_forked_child(x)
-#define ASSERT_IS_NOT_FORKED_CHILD() ASSERT_IS_NOT_FORKED_CHILD_TRAMPOLINE(__FUNCTION__)
-
-extern "C" {
-    __attribute__((noinline)) void debug_thread_error(void);
-}
-
-/** Return the path of an appropriate runtime data directory */
-std::string common_get_runtime_path();
-
-#endif

complete.h

@@ -1,279 +0,0 @@
-/** \file complete.h
-  Prototypes for functions related to tab-completion.
-
-  These functions are used for storing and retrieving tab-completion
-  data, as well as for performing tab-completion.
-*/
-
-#ifndef FISH_COMPLETE_H
-
-/**
-   Header guard
-*/
-#define FISH_COMPLETE_H
-
-
-#include <wchar.h>
-
-#include "util.h"
-#include "common.h"
-/**
- * Use all completions
- */
-#define SHARED 0
-/**
- * Do not use file completion
- */
-#define NO_FILES 1
-/**
- * Require a parameter after completion
- */
-#define NO_COMMON 2
-/**
- * Only use the argument list specifies with completion after
- * option. This is the same as (NO_FILES & NO_COMMON)
- */
-#define EXCLUSIVE 3
-
-/**
- * Command is a path
- */
-#define PATH 1
-/**
- * Command is not a path
- */
-#define COMMAND 0
-
-/**
- * Separator between completion and description
- */
-#define COMPLETE_SEP L'\004'
-
-/**
- * Separator between completion and description
- */
-#define COMPLETE_SEP_STR L"\004"
-
-/**
- * Separator between completion items in fish_pager. This is used for
- * completion grouping, e.g. when putting completions with the same
- * descriptions on the same line.
- */
-#define COMPLETE_ITEM_SEP L'\uf500'
-
-/**
- * Character that separates the completion and description on
- * programmable completions
- */
-#define PROG_COMPLETE_SEP L'\t'
-
-enum
-{
-    /**
-       Do not insert space afterwards if this is the only completion. (The
-       default is to try insert a space)
-    */
-    COMPLETE_NO_SPACE = 1 << 0,
-
-    /** This is not the suffix of a token, but replaces it entirely */
-    COMPLETE_REPLACES_TOKEN = 1 << 2,
-
-    /** This completion may or may not want a space at the end - guess by
-       checking the last character of the completion. */
-    COMPLETE_AUTO_SPACE = 1 << 3,
-
-    /** This completion should be inserted as-is, without escaping. */
-    COMPLETE_DONT_ESCAPE = 1 << 4,
-
-    /** If you do escape, don't escape tildes */
-    COMPLETE_DONT_ESCAPE_TILDES = 1 << 5
-};
-typedef int complete_flags_t;
-
-
-class completion_t
-{
-
-private:
-    /* No public default constructor */
-    completion_t();
-public:
-
-    /* Destructor. Not inlining it saves code size. */
-    ~completion_t();
-
-    /** The completion string */
-    wcstring completion;
-
-    /** The description for this completion */
-    wcstring description;
-
-    /** The type of fuzzy match */
-    string_fuzzy_match_t match;
-
-    /**
-       Flags determining the completion behaviour.
-
-       Determines whether a space should be inserted after this
-       completion if it is the only possible completion using the
-       COMPLETE_NO_SPACE flag.
-
-       The COMPLETE_NO_CASE can be used to signal that this completion
-       is case insensitive.
-    */
-    int flags;
-
-    /* Construction. Note: defining these so that they are not inlined reduces the executable size. */
-    completion_t(const wcstring &comp, const wcstring &desc = L"", string_fuzzy_match_t match = string_fuzzy_match_t(fuzzy_match_exact), int flags_val = 0);
-    completion_t(const completion_t &);
-    completion_t &operator=(const completion_t &);
-    
-    /* Compare two completions. No operating overlaoding to make this always explicit (there's potentially multiple ways to compare completions). */
-    static bool is_alphabetically_less_than(const completion_t &a, const completion_t &b);
-    static bool is_alphabetically_equal_to(const completion_t &a, const completion_t &b);
-};
-
-enum
-{
-    COMPLETION_REQUEST_DEFAULT = 0,
-    COMPLETION_REQUEST_AUTOSUGGESTION = 1 << 0, // indicates the completion is for an autosuggestion
-    COMPLETION_REQUEST_DESCRIPTIONS = 1 << 1, // indicates that we want descriptions
-    COMPLETION_REQUEST_FUZZY_MATCH = 1 << 2 // indicates that we don't require a prefix match
-};
-typedef uint32_t completion_request_flags_t;
-
-/** Given a list of completions, returns a list of their completion fields */
-wcstring_list_t completions_to_wcstring_list(const std::vector<completion_t> &completions);
-
-/**
-
-  Add a completion.
-
-  All supplied values are copied, they should be freed by or otherwise
-  disposed by the caller.
-
-  Examples:
-
-  The command 'gcc -o' requires that a file follows it, so the
-  NO_COMMON option is suitable. This can be done using the following
-  line:
-
-  complete -c gcc -s o -r
-
-  The command 'grep -d' required that one of the strings 'read',
-  'skip' or 'recurse' is used. As such, it is suitable to specify that
-  a completion requires one of them. This can be done using the
-  following line:
-
-  complete -c grep -s d -x -a "read skip recurse"
-
-
-  \param cmd Command to complete.
-  \param cmd_type If cmd_type is PATH, cmd will be interpreted as the absolute
-      path of the program (optionally containing wildcards), otherwise it
-      will be interpreted as the command name.
-  \param short_opt The single character name of an option. (-a is a short option,
-      --all and  -funroll are long options)
-  \param long_opt The multi character name of an option. (-a is a short option,
-      --all and  -funroll are long options)
-  \param long_mode Whether to use old style, single dash long options.
-  \param result_mode Whether to search further completions when this
-      completion has been succesfully matched. If result_mode is SHARED,
-      any other completions may also be used. If result_mode is NO_FILES,
-      file completion should not be used, but other completions may be
-      used. If result_mode is NO_COMMON, on option may follow it - only a
-      parameter. If result_mode is EXCLUSIVE, no option may follow it, and
-      file completion is not performed.
-  \param comp A space separated list of completions which may contain subshells.
-  \param desc A description of the completion.
-  \param condition a command to be run to check it this completion should be used.
-      If \c condition is empty, the completion is always used.
-  \param flags A set of completion flags
-*/
-void complete_add(const wchar_t *cmd,
-                  bool cmd_is_path,
-                  wchar_t short_opt,
-                  const wchar_t *long_opt,
-                  int long_mode,
-                  int result_mode,
-                  const wchar_t *condition,
-                  const wchar_t *comp,
-                  const wchar_t *desc,
-                  int flags);
-/**
-  Sets whether the completion list for this command is complete. If
-  true, any options not matching one of the provided options will be
-  flagged as an error by syntax highlighting.
-*/
-void complete_set_authoritative(const wchar_t *cmd, bool cmd_type, bool authoritative);
-
-/**
-  Remove a previously defined completion
-*/
-void complete_remove(const wchar_t *cmd,
-                     bool cmd_is_path,
-                     wchar_t short_opt,
-                     const wchar_t *long_opt);
-
-
-/** Find all completions of the command cmd, insert them into out. If to_load is
- * not NULL, append all commands that we would autoload, but did not (presumably
- * because this is not the main thread)
- */
-void complete(const wcstring &cmd,
-              std::vector<completion_t> &comp,
-              completion_request_flags_t flags,
-              wcstring_list_t *to_load = NULL);
-
-/**
-   Print a list of all current completions into the string.
-
-   \param out The string to write completions to
-*/
-void complete_print(wcstring &out);
-
-/**
-   Tests if the specified option is defined for the specified command
-*/
-int complete_is_valid_option(const wcstring &str,
-                             const wcstring &opt,
-                             wcstring_list_t *inErrorsOrNull,
-                             bool allow_autoload);
-
-/**
-   Tests if the specified argument is valid for the specified option
-   and command
-*/
-bool complete_is_valid_argument(const wcstring &str,
-                                const wcstring &opt,
-                                const wcstring &arg);
-
-
-/**
-   Load command-specific completions for the specified command. This
-   is done automatically whenever completing any given command, so
-   there is no need to call this except in the case of completions
-   with internal dependencies.
-
-   \param cmd the command for which to load command-specific completions
-   \param reload should the commands completions be reloaded, even if they where
-      previously loaded. (This is set to true on actual completions, so that
-      changed completion are updated in running shells)
-*/
-void complete_load(const wcstring &cmd, bool reload);
-
-/**
-   Create a new completion entry
-
-   \param completions The array of completions to append to
-   \param comp The completion string
-   \param desc The description of the completion
-   \param flags completion flags
-
-*/
-void append_completion(std::vector<completion_t> &completions, const wcstring &comp, const wcstring &desc = L"", int flags = 0, string_fuzzy_match_t match = string_fuzzy_match_t(fuzzy_match_exact));
-
-/* Function used for testing */
-void complete_set_variable_names(const wcstring_list_t *names);
-
-#endif

config_cmake.h.in

@@ -0,0 +1,209 @@
+/* Define to 1 if you have the `backtrace_symbols' function. */
+#cmakedefine HAVE_BACKTRACE_SYMBOLS 1
+
+/* Define to 1 if compiled on WSL */
+#cmakedefine WSL 1
+
+/* Define to 1 if you have the `clock_gettime' function. */
+#cmakedefine HAVE_CLOCK_GETTIME 1
+
+/* Define to 1 if you have the `ctermid_r' function. */
+#cmakedefine HAVE_CTERMID_R 1
+
+/* Define to 1 if C++11 thread_local is supported. */
+#cmakedefine HAVE_CX11_THREAD_LOCAL 1
+
+/* Define to 1 if you have the `dirfd' function. */
+#cmakedefine HAVE_DIRFD 1
+
+/* Define to 1 if you have the <execinfo.h> header file. */
+#cmakedefine HAVE_EXECINFO_H 1
+
+/* Define to 1 if you have the `flock' function. */
+#cmakedefine HAVE_FLOCK 1
+
+/* Define to 1 if you have the `futimens' function. */
+#cmakedefine HAVE_FUTIMENS 1
+
+/* Define to 1 if you have the `futimes' function. */
+#cmakedefine HAVE_FUTIMES 1
+
+/* Define to 1 if you have the `getifaddrs' function. */
+#cmakedefine HAVE_GETIFADDRS 1
+
+/* Define to 1 if you have the `getpwent' function. */
+#cmakedefine HAVE_GETPWENT 1
+
+/* Define to 1 if you have the 'getrusage' function. */
+#cmakedefine HAVE_GETRUSAGE 1
+
+/* Define to 1 if you have the `gettext' function. */
+#cmakedefine HAVE_GETTEXT 1
+
+/* Define to 1 if you have the `killpg' function. */
+#cmakedefine HAVE_KILLPG 1
+
+/* Define to 1 if you have the `mkostemp' function. */
+#cmakedefine HAVE_MKOSTEMP 1
+
+/* Define to 1 if you have the <curses.h> header file. */
+#cmakedefine HAVE_CURSES_H 1
+
+/* Define to 1 if you have the <ncurses/curses.h> header file. */
+#cmakedefine HAVE_NCURSES_CURSES_H 1
+
+/* Define to 1 if you have the <ncurses.h> header file. */
+#cmakedefine HAVE_NCURSES_H 1
+
+/* Define to 1 if you have the <ncurses/term.h> header file. */
+#cmakedefine HAVE_NCURSES_TERM_H 1
+
+/* Define to 1 if you have the 'eventfd' function. */
+#cmakedefine HAVE_EVENTFD 1
+
+/* Define to 1 if you have the 'pipe2' function. */
+#cmakedefine HAVE_PIPE2 1
+
+/* Define to 1 if you have the <siginfo.h> header file. */
+#cmakedefine HAVE_SIGINFO_H 1
+
+/* Define to 1 if you have the <spawn.h> header file. */
+#cmakedefine HAVE_SPAWN_H 1
+
+/* Define to 1 if you have the `std::wcscasecmp' function. */
+#cmakedefine HAVE_STD__WCSCASECMP 1
+
+/* Define to 1 if you have the `std::wcsdup' function. */
+#cmakedefine HAVE_STD__WCSDUP 1
+
+/* Define to 1 if you have the `std::wcsncasecmp' function. */
+#cmakedefine HAVE_STD__WCSNCASECMP 1
+
+/* Define to 1 if `d_type' is a member of `struct dirent'. */
+#cmakedefine HAVE_STRUCT_DIRENT_D_TYPE 1
+
+/* Define to 1 if `st_ctime_nsec' is a member of `struct stat'. */
+#cmakedefine HAVE_STRUCT_STAT_ST_CTIME_NSEC 1
+
+/* Define to 1 if `st_mtimespec.tv_nsec' is a member of `struct stat'. */
+#cmakedefine HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC 1
+
+/* Define to 1 if `st_mtim.tv_nsec' is a member of `struct stat'. */
+#cmakedefine HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC 1
+
+/* Define to 1 if the sys_errlist array is available. */
+#cmakedefine HAVE_SYS_ERRLIST 1
+
+/* Define to 1 if you have the <sys/ioctl.h> header file. */
+#cmakedefine HAVE_SYS_IOCTL_H 1
+
+/* Define to 1 if you have the <sys/select.h> header file. */
+#cmakedefine HAVE_SYS_SELECT_H 1
+
+/* Define to 1 if you have the <sys/sysctl.h> header file. */
+#cmakedefine HAVE_SYS_SYSCTL_H 1
+
+/* Define to 1 if you have the <termios.h> header file. */
+#cmakedefine HAVE_TERMIOS_H 1
+
+/* Define to 1 if you have the <term.h> header file. */
+#cmakedefine HAVE_TERM_H 1
+
+/* Define to 1 if you have the `wcscasecmp' function. */
+#cmakedefine HAVE_WCSCASECMP 1
+
+/* Define to 1 if you have the `wcsdup' function. */
+#cmakedefine HAVE_WCSDUP 1
+
+/* Define to 1 if you have the `wcslcpy' function. */
+#cmakedefine HAVE_WCSLCPY 1
+
+/* Define to 1 if you have the `wcsncasecmp' function. */
+#cmakedefine HAVE_WCSNCASECMP 1
+
+/* Define to 1 if you have the `wcsndup' function. */
+#cmakedefine HAVE_WCSNDUP 1
+
+/* Define to 1 if you have the `wcstod_l' function. */
+#cmakedefine HAVE_WCSTOD_L 1
+
+/* Define to 1 if the winsize struct and TIOCGWINSZ macro exist */
+#cmakedefine HAVE_WINSIZE 1
+
+/* Define to 1 if the _nl_msg_cat_cntr symbol is exported. */
+#cmakedefine HAVE__NL_MSG_CAT_CNTR 1
+
+/* Define to 1 if std::make_unique is available. */
+#cmakedefine HAVE_STD__MAKE_UNIQUE 1
+
+/* Define to 1 if the _sys_errs array is available. */
+#cmakedefine HAVE__SYS__ERRS 1
+
+/* Define to 1 to disable ncurses macros that conflict with the STL */
+#define NCURSES_NOMACROS 1
+
+/* Define to 1 to disable curses macros that conflict with the STL */
+#define NOMACROS 1
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "https://github.com/fish-shell/fish-shell/issues"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "fish"
+
+/* Use a variadic tparm on NetBSD curses. */
+#cmakedefine TPARM_VARARGS 1
+
+/* Define to 1 if tparm accepts a fixed amount of parameters. */
+#cmakedefine TPARM_SOLARIS_KLUDGE 1
+
+/* Enable GNU extensions on systems that have them.  */
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE 1
+#endif
+
+/* The size of wchar_t in bits. */
+#define WCHAR_T_BITS ${WCHAR_T_BITS}
+
+/* Define if xlocale.h is required for locale_t or wide character support */
+#cmakedefine HAVE_XLOCALE_H 1
+
+/* Enable large inode numbers on Mac OS X 10.5.  */
+#ifndef _DARWIN_USE_64_BIT_INODE
+# define _DARWIN_USE_64_BIT_INODE 1
+#endif
+
+/* Define to 1 if mbrtowc attempts to convert invalid UTF-8 sequences */
+#cmakedefine HAVE_BROKEN_MBRTOWC_UTF8 1
+
+/* Support __warn_unused on function return values. */
+#if __GNUC__ >= 3
+#ifndef __warn_unused
+#define __warn_unused __attribute__ ((warn_unused_result))
+#endif
+#else
+#define __warn_unused
+#endif
+
+/* Like __warn_unused, but applies to a type.
+   At the moment only clang supports this as a type attribute.
+
+   We need to check for __has_attribute being a thing before or old gcc fails - #7554.
+*/
+#ifndef __has_attribute
+  #define __has_attribute(x) 0  // Compatibility with non-clang and old gcc compilers.
+#endif
+
+#if defined(__clang__) && __has_attribute(warn_unused_result)
+#ifndef __warn_unused_type
+#define __warn_unused_type __attribute__ ((warn_unused_result))
+#endif
+#else
+#define __warn_unused_type
+#endif
+
+#if __has_attribute(fallthrough)
+#define __fallthrough__ __attribute__ ((fallthrough));
+#else
+#define __fallthrough__
+#endif

configure.ac

@@ -1,942 +0,0 @@
-#
-# This file is the main build configuration file for fish. It is used
-# to determine your systems capabilities, and tries to adapt fish to
-# take maximum advantage of the services your system offers.
-#
-# Process this file using the 'autoconf' command to produce a working
-# configure script, which should in turn be executed in order to
-# configure the build process.
-#
-
-m4_syscmd([build_tools/git_version_gen.sh 2>/dev/null])
-
-AC_PREREQ([2.60])
-AC_INIT(fish,
-        m4_esyscmd([cut -f 3 -d ' ' FISH-BUILD-VERSION-FILE | tr -d '\n']),
-        fish-users@lists.sf.net)
-
-conf_arg=$@
-
-#
-# List of output variables produced by this configure script
-#
-
-AC_SUBST(docdir)
-AC_SUBST(HAVE_GETTEXT)
-AC_SUBST(HAVE_DOXYGEN)
-AC_SUBST(LDFLAGS_FISH)
-AC_SUBST(LIBS_FISH)
-AC_SUBST(LIBS_FISH_INDENT)
-AC_SUBST(LIBS_FISH_PAGER)
-AC_SUBST(LIBS_FISHD)
-AC_SUBST(LIBS_MIMEDB)
-AC_SUBST(localedir)
-AC_SUBST(optbindirs)
-AC_SUBST(prefix)
-
-
-#
-# If needed, run autoconf to regenerate the configure file
-#
-# This makes sure that after running autoconf once to create the first
-# version of configure, we never again need to worry about manually
-# running autoconf to handle an updates configure.ac.
-#
-
-AC_MSG_CHECKING([if autoconf needs to be run])
-if test configure -ot configure.ac; then
-  AC_MSG_RESULT([yes])
-  if which autoconf >/dev/null; then
-    # No need to provide any error messages if autoconf fails, the
-    # shell and autconf should take care of that themselves
-    AC_MSG_NOTICE([running autoconf])
-    if autoconf; then
-      ./configure "$@"
-      exit
-    fi
-    exit 1
-  else
-    AC_MSG_ERROR(
-      [cannot find the autoconf program in your path.
-This program needs to be run whenever the configure.ac file is modified.
-Please install it and try again.]
-    )
-  fi
-else
-  AC_MSG_RESULT([no])
-fi
-
-
-#
-# If needed, run autoheader to regenerate config.h.in
-#
-# This makes sure we never ever have to run autoheader manually. It
-# will be run whenever needed automatically.
-#
-
-AC_MSG_CHECKING([if autoheader needs to be run])
-if test ! -f ./config.h.in -o config.h.in -ot configure.ac; then
-  AC_MSG_RESULT([yes])
-  if which autoheader >/dev/null; then
-    AC_MSG_NOTICE([running autoheader])
-    autoheader || exit 1
-  else
-    AC_MSG_ERROR(
-      [cannot find the autoheader program in your path.
-This program needs to be run whenever the configure.ac file is modified.
-Please install it and try again.]
-    )
-  fi
-else
-  AC_MSG_RESULT([no])
-fi
-
-#
-# Set up various programs needed for install
-# Note AC_PROG_CXX sets CXXFLAGS if not set, which we want
-# So ensure this happens before we modify CXXFLAGS below
-#
-
-AC_PROG_CXX([g++ c++])
-AC_PROG_INSTALL
-AC_LANG(C++)
-
-echo "CXXFLAGS: $CXXFLAGS"
-
-#
-# Detect directories which may contain additional headers, libraries
-# and commands. This needs to be done early - before Autoconf starts
-# to mess with CXXFLAGS and all the other environemnt variables.
-#
-# This mostly helps OS X users, since fink usually installs out of
-# tree and doesn't update CXXFLAGS.
-#
-# It also helps FreeBSD which puts libiconv in /usr/local/lib
-
-for i in /usr/pkg /sw /opt /opt/local /usr/local; do
-
-  AC_MSG_CHECKING([for $i/include include directory])
-  if test -d $i/include; then
-    AC_MSG_RESULT(yes)
-    CXXFLAGS="$CXXFLAGS -I$i/include/"
-  else
-  AC_MSG_RESULT(no)
-  fi
-
-  AC_MSG_CHECKING([for $i/lib library directory])
-  if test -d $i/lib; then
-    AC_MSG_RESULT(yes)
-    LDFLAGS="$LDFLAGS -L$i/lib/"
-  else
-    AC_MSG_RESULT(no)
-  fi
-
-  AC_MSG_CHECKING([for $i/bin command directory])
-  if test -d $i/bin; then
-    AC_MSG_RESULT(yes)
-    optbindirs="$optbindirs $i/bin"
-  else
-    AC_MSG_RESULT(no)
-  fi
-
-done
-
-
-#
-# Tell autoconf to create config.h header
-#
-AC_CONFIG_HEADERS(config.h)
-
-
-#
-# This adds markup to the code that results in a few extra compile
-# time checks on recent GCC versions. It helps stop a few common bugs.
-#
-
-AH_BOTTOM([#if __GNUC__ >= 3
-#define __warn_unused __attribute__ ((warn_unused_result))
-#define __sentinel __attribute__ ((sentinel))
-#else
-#define __warn_unused
-#define __sentinel
-#endif])
-
-
-#
-# Optionally drop gettext support
-#
-
-AC_ARG_WITH(
-  gettext,
-  AS_HELP_STRING(
-    [--without-gettext],
-    [do not translate messages, even if gettext is available]
-  ),
-  [local_gettext=$withval],
-  [local_gettext=check]
-)
-
-AS_IF([test x$local_gettext != xno],
-  [ AC_CHECK_PROGS( [found_msgfmt], [msgfmt], [no] )
-    if test x$found_msgfmt != xno; then
-      AC_DEFINE([USE_GETTEXT],[1],[Perform string translations with gettext])
-    elif test "x$local_gettext" != "xcheck" ; then
-      AC_MSG_FAILURE([--with-gettext was given, but the msgfmt program could not be found])
-    else
-      local_gettext=no
-    fi
-   ],
-)
-
-#
-# Build/clean the documentation only if Doxygen is available
-#
-
-doxygen_minimum=1.5
-
-AC_ARG_WITH(
-  doxygen,
-  AS_HELP_STRING(
-    [--with-doxygen],
-    [use Doxygen to regenerate documentation]
-  ),
-  [use_doxygen=$withval],
-  [use_doxygen=auto]
-)
-
-AS_IF([test "$use_doxygen" != "no"],
-  [
-    AC_CHECK_PROGS([found_doxygen], [doxygen], [no])
-    if test "$found_doxygen" != no; then
-      # test version
-      AC_MSG_CHECKING([the doxygen version])
-      doxygen_version=`doxygen --version 2>/dev/null`
-      AC_MSG_RESULT([$doxygen_version])
-      dnl This requires autoconf 2.60 or newer
-      AS_VERSION_COMPARE([$doxygen_version], [$doxygen_minimum],
-        [ if test "$use_doxygen" = auto; then
-            AC_MSG_WARN([doxygen version $doxygen_version found, but $doxygen_minimum required])
-            HAVE_DOXYGEN=0
-          else
-            AC_MSG_FAILURE([doxygen version $doxygen_version found, but $doxygen_minimum required])
-          fi
-        ],
-        [HAVE_DOXYGEN=1], [HAVE_DOXYGEN=1])
-    elif test "$use_doxygen" != auto; then
-      AC_MSG_FAILURE([--with-doxygen was given, but the doxygen program could not be found])
-    else
-      HAVE_DOXYGEN=0
-    fi
-  ],
-)
-
-#
-# Try to enable large file support. This will make sure that on systems
-# where off_t can be either 32 or 64 bit, the latter size is used. On
-# other systems, this should do nothing. (Hopefully)
-#
-
-CXXFLAGS="$CXXFLAGS -D_LARGEFILE_SOURCE=1 -D_FILE_OFFSET_BITS=64"
-
-#
-# If we are using gcc, set some flags that increase the odds of the
-# compiler producing a working binary...
-#
-
-if test "$GCC" = yes; then
-
-  #
-  # -fno-optimize-sibling-calls seems to work around a bug where
-  # sending a SIGWINCH to fish on NetBSD 3.0 causes fish to exit when
-  # compiled with GCC 3.3.3. This is probably either a compiler bug
-  # or a libc bug, but adding this flag seems to fix things for
-  # now. Long term, the real problem should be tracked down and
-  # truly fixed, at which point we can remove this silly flag. This
-  # bug has been verified to not exist on Linux using GCC 3.3.3.
-  #
-
-  GCC_VERSION=$($CC -dumpversion)
-  GCC_VERSION_MAJOR=$(echo $GCC_VERSION | cut -d'.' -f1)
-  GCC_VERSION_MINOR=$(echo $GCC_VERSION | cut -d'.' -f2)
-  GCC_VERSION_PATCH=$(echo $GCC_VERSION | cut -d'.' -f3)
-
-  if test "$GCC_VERSION_MAJOR" -le 3; then
-    if test 0"$GCC_VERSION_MINOR" -le 3; then
-      if test 0"$GCC_VERSION_PATCH" -le 3; then
-        CXXFLAGS="$CXXFLAGS -fno-optimize-sibling-calls"
-      fi
-    fi
-  fi
-
-  # fish does not use exceptions
-  # Disabling exceptions saves about 20% (!) of the compiled code size
-  CXXFLAGS="$CXXFLAGS -fno-exceptions"
-
-
-  #
-  # -Wall is there to keep me on my toes
-  #
-
-  # Some day...
-  CXXFLAGS="$CXXFLAGS -Wall"
-
-  #
-  # This is needed in order to get the really cool backtraces on Linux
-  #
-
-  if test `uname` != "Darwin"; then
-    LDFLAGS_FISH="$LDFLAGS_FISH -rdynamic"
-  fi
-
-fi
-
-
-#
-# If we are compiling against glibc, set some flags to work around
-# some rather stupid attempts to hide prototypes for *wprintf
-# functions, as well as prototypes of various gnu extensions.
-#
-
-AC_MSG_CHECKING([if we are compiling against glibc])
-AC_RUN_IFELSE(
-  [
-    AC_LANG_PROGRAM(
-      [
-        #include <stdlib.h>
-        #ifdef __GLIBC__
-        #define STATUS 0
-        #else
-        #define STATUS 1
-        #endif
-      ],
-      [
-        return STATUS;
-      ]
-    )
-  ],
-  [glibc=yes],
-  [glibc=no]
-)
-
-if test "$glibc" = yes; then
-  AC_MSG_RESULT(yes)
-
-  #
-  # This gives us access to prototypes for gnu extensions and C99
-  # functions if we are compiling agains glibc. All GNU extensions
-  # that are used must have a fallback implementation available in
-  # fallback.h, in order to keep fish working on non-gnu platforms.
-  #
-
-  CXXFLAGS="$CXXFLAGS -D_GNU_SOURCE=1 -D_ISO99_SOURCE=1"
-else
-  AC_MSG_RESULT(no)
-fi
-
-
-#
-# Test cpu for special handling of ppc
-#
-# This is used to skip use of tputs on ppc systems, since it seemed to
-# be broken, at least on older debin-based systems. This is obviously
-# not the right way to to detect whether this workaround should be
-# used, since it catches far to many systems, but I do not have the
-# hardware available to narrow this problem down, and in practice, it
-# seems that tputs is never really needed.
-#
-
-AC_CANONICAL_TARGET
-
-if test $target_cpu = powerpc; then
-  AC_DEFINE([TPUTS_KLUDGE],[1],[Evil kludge to get Power based machines to work])
-fi
-
-
-#
-# Solaris-specific flags go here
-#
-
-AC_MSG_CHECKING([if we are under Solaris])
-case $target_os in
-  solaris*)
-    AC_DEFINE( __EXTENSIONS__, 1, [Macro to enable additional prototypes under Solaris])
-    AC_MSG_RESULT(yes)
-    ;;
-  *)
-    AC_MSG_RESULT(no)
-    ;;
-esac
-
-# Check for Solaris curses tputs having fixed length parameter list.
-AC_MSG_CHECKING([if we are using non varargs tparm.])
-AC_COMPILE_IFELSE(
-  [
-    AC_LANG_PROGRAM(
-      [
-        #include <curses.h>
-        #include <term.h>
-      ],
-      [
-        tparm( "" );
-      ]
-    )
-  ],
-  [tparm_solaris_kludge=no],
-  [tparm_solaris_kludge=yes]
-)
-if test "x$tparm_solaris_kludge" = "xyes"; then
-  AC_MSG_RESULT(yes)
-  AC_DEFINE(
-    [TPARM_SOLARIS_KLUDGE],
-    [1],
-    [Define to 1 if tparm accepts a fixed amount of paramters.]
-  )
-else
-  AC_MSG_RESULT(no)
-fi
-
-
-#
-# BSD-specific flags go here
-#
-
-AC_MSG_CHECKING([if we are under BSD])
-case $target_os in
-  *bsd*)
-    AC_DEFINE( __BSD_VISIBLE, 1, [Macro to enable additional prototypes under BSD])
-    AC_DEFINE( _NETBSD_SOURCE, 1, [Macro to enable additional prototypes under BSD])
-    AC_MSG_RESULT(yes)
-    ;;
-  *)
-    AC_MSG_RESULT(no)
-    ;;
-esac
-
-
-#
-# Set up PREFIX and related preprocessor symbols. Fish needs to know
-# where it will be installed. One of the reasons for this is so that
-# it can make sure the fish installation directory is in the path
-# during startup.
-#
-
-if [[ "$prefix" = NONE ]]; then
-  prefix=/usr/local
-fi
-
-
-#
-# Set up the directory where the documentation files should be
-# installed
-#
-
-AC_ARG_VAR( [docdir], [Documentation direcotry] )
-
-if test -z $docdir; then
-  docdir=$datadir/doc/fish
-else
-  docdir=$docdir
-fi
-
-
-#
-# Set up locale directory. This is where the .po files will be
-# installed.
-#
-
-localedir=$datadir/locale
-
-
-#
-# See if Linux procfs is present. This is used to get extra
-# information about running processes.
-#
-
-AC_CHECK_FILES([/proc/self/stat])
-
-
-#
-# This is ued to tell the wgetopt library to translate strings. This
-# way wgetopt can be dropped into any project without requiring i18n.
-#
-
-AC_DEFINE(
-  [HAVE_TRANSLATE_H],
-  [1],
-  [Define to 1 if the wgettext function should be used for translating strings.]
-)
-
-
-#
-# Check presense of various libraries. This is done on a per-binary
-# level, since including various extra libraries in all binaries only
-# because thay are used by some of them can cause extra bloat and
-# slower compiles when developing fish.
-#
-
-# Check for os dependant libraries for all binaries.
-LIBS_COMMON=$LIBS
-LIBS=""
-AC_SEARCH_LIBS( connect, socket, , [AC_MSG_ERROR([Cannot find the socket library, needed to build this package.] )] )
-AC_SEARCH_LIBS( nanosleep, rt, , [AC_MSG_ERROR([Cannot find the rt library, needed to build this package.] )] )
-AC_SEARCH_LIBS( pthread_create, pthread, , [AC_MSG_ERROR([Cannot find the pthread library, needed to build this package.] )] )
-AC_SEARCH_LIBS( setupterm, [ncurses curses], , [AC_MSG_ERROR([Could not find a curses implementation, needed to build fish. If this is Linux, try running 'sudo apt-get install libncurses5-dev' or 'sudo yum install ncurses-devel'])] )
-AC_SEARCH_LIBS( [nan], [m], [AC_DEFINE( [HAVE_NAN], [1], [Define to 1 if you have the nan function])] )
-LIBS_SHARED=$LIBS
-LIBS=$LIBS_COMMON
-
-#
-# Check for libraries needed by fish.
-#
-
-LIBS_COMMON=$LIBS
-LIBS="$LIBS_SHARED"
-if test x$local_gettext != xno; then
-  AC_SEARCH_LIBS( gettext, intl,,)
-fi
-
-# Check for libiconv_open if we can't find iconv_open. Silly OS X does
-# weird macro magic for the sole purpose of amusing me.
-AC_SEARCH_LIBS( iconv_open, iconv, , [AC_SEARCH_LIBS( libiconv_open, iconv, , [AC_MSG_ERROR([Could not find an iconv implementation, needed to build fish])] )] )
-
-LIBS_FISH=$LIBS
-LIBS=$LIBS_COMMON
-
-#
-# Check for libraries needed by fish_indent.
-#
-
-LIBS_COMMON=$LIBS
-LIBS="$LIBS_SHARED"
-if test x$local_gettext != xno; then
-  AC_SEARCH_LIBS( gettext, intl,,)
-fi
-LIBS_FISH_INDENT=$LIBS
-LIBS=$LIBS_COMMON
-
-#
-# Check for libraries needed by fish_pager.
-#
-
-LIBS_COMMON=$LIBS
-LIBS="$LIBS_SHARED"
-if test x$local_gettext != xno; then
-  AC_SEARCH_LIBS( gettext, intl,,)
-fi
-AC_SEARCH_LIBS( iconv_open, iconv, , [AC_SEARCH_LIBS( libiconv_open, iconv, , [AC_MSG_ERROR([Could not find an iconv implementation, needed to build fish])] )] )
-LIBS_FISH_PAGER=$LIBS
-LIBS=$LIBS_COMMON
-
-#
-# Check for libraries needed by fishd.
-#
-
-LIBS_COMMON=$LIBS
-LIBS="$LIBS_SHARED"
-if test x$local_gettext != xno; then
-  AC_SEARCH_LIBS( gettext, intl,,)
-fi
-AC_SEARCH_LIBS( iconv_open, iconv, , [AC_SEARCH_LIBS( libiconv_open, iconv, , [AC_MSG_ERROR([Could not find an iconv implementation, needed to build fish])] )] )
-LIBS_FISHD=$LIBS
-LIBS=$LIBS_COMMON
-
-#
-# Check for libraries needed by mimedb.
-#
-
-LIBS_COMMON=$LIBS
-LIBS="$LIBS_SHARED"
-if test x$local_gettext != xno; then
-  AC_SEARCH_LIBS( gettext, intl,,)
-fi
-LIBS_MIMEDB=$LIBS
-LIBS=$LIBS_COMMON
-
-
-#
-# Check presense of various header files
-#
-
-AC_CHECK_HEADERS([getopt.h termios.h sys/resource.h term.h ncurses/term.h ncurses.h curses.h stropts.h siginfo.h sys/select.h sys/ioctl.h execinfo.h spawn.h sys/sysctl.h])
-
-if test x$local_gettext != xno; then
-  AC_CHECK_HEADERS([libintl.h])
-fi
-
-AC_CHECK_HEADER(
-  [regex.h],
-  [
-    AC_DEFINE(
-      [HAVE_REGEX_H],
-      [1],
-      [Define to 1 if you have the <regex.h> header file.]
-    )
-  ],
-  [AC_MSG_ERROR([Could not find the header regex.h, needed to build fish])]
-)
-
-
-#
-# On some platforms (Solaris 10) adding -std=c99 in turn requires that
-# _POSIX_C_SOURCE be defined to 200112L otherwise several
-# POSIX-specific, non-ISO-C99 types/prototypes are made unavailable
-# e.g. siginfo_t. Defining _XOPEN_SOURCE to 600 is compatible with
-# the _POSIX_C_SOURCE value and provides a little assurance that
-# extension functions' prototypes are available, e.g. killpg().
-#
-# Some other platforms (OS X), will remove types/prototypes/macros
-# e.g. SIGWINCH if either _POSIX_C_SOURCE or _XOPEN_SOURCE is defined.
-#
-# This test adds these macros only if they enable a program that uses
-# both Posix and non-standard features to compile, and that program
-# does not compile without these macros.
-#
-# We try to make everyone happy.
-#
-# The ordering of the various autoconf tests is very critical as well:
-#
-# * This test needs to be run _after_ header detection tests, so that
-# the proper headers are included.
-#
-# * This test needs to be run _before_ testing for the presense of any
-# prototypes or other language functinality.
-#
-# * This test should be (but does not need to be) run after the
-# conditional definition of __EXTENSIONS__, to avoid redundant tests.
-#
-
-XCXXFLAGS="$CXXFLAGS"
-
-echo checking how to use -D_XOPEN_SOURCE=600 and -D_POSIX_C_SOURCE=200112L...
-local_found_posix_switch=no
-
-for i in "" "-D_POSIX_C_SOURCE=200112L" "-D_XOPEN_SOURCE=600 -D_POSIX_C_SOURCE=200112L"; do
-
-  AC_MSG_CHECKING( if switches \"$i\" works)
-  CXXFLAGS="$XCXXFLAGS $i"
-
-  #
-  # Try to run this program, which should test various extensions
-  # and Posix functionality. If this program works, then everything
-  # should work. Hopefully.
-  #
-
-  AC_TRY_LINK(
-    [
-      #include <stdlib.h>
-      #include <stdio.h>
-      #include <sys/types.h>
-
-      /* POSIX, C89 and C99: POSIX extends this header.
-       * For: kill(), killpg(), siginfo_t, sigset_t,
-       * struct sigaction, sigemptyset(), sigaction(),
-       * SIGIO and SIGWINCH.  */
-      #include <signal.h>
-
-      #ifdef HAVE_SIGINFO_H
-      /* Neither POSIX, C89 nor C99: Solaris-specific (others?).
-       * For: siginfo_t (also defined by signal.h when in
-       * POSIX/extensions mode). */
-      #include <siginfo.h>
-      #endif
-
-      #ifdef HAVE_SYS_IOCTL_H
-      /* As above (under at least Linux and FreeBSD). */
-      #include <sys/ioctl.h>
-      #endif
-    ],
-    [
-      /* Avert high-level optimisation, by making the program's
-       * return value depend on all tested identifiers. */
-      long ret = 0;
-      /* POSIX only: might be unhidden by _POSIX_C_SOURCE. */
-      struct sigaction sa;
-      sigset_t ss;
-      siginfo_t info;
-      ret += (long)(void *)&info + kill( 0, 0 ) +
-        sigaction( 0, &sa, 0 ) + sigemptyset( &ss );
-      /* Extended-POSIX: might be unhidden by _XOPEN_SOURCE. */
-      ret += killpg( 0, 0 );
-      /* Non-standard: might be hidden by the macros. */
-      {
-        struct winsize termsize;
-        ret += (long)(void *)&termsize;
-        ret += SIGWINCH + TIOCGWINSZ + SIGIO;
-      }
-      return ret;
-
-    ],
-    local_cv_use__posix_c_source=yes,
-    local_cv_use__posix_c_source=no,
-  )
-
-  if test x$local_cv_use__posix_c_source = xyes; then
-    AC_MSG_RESULT( yes )
-    local_found_posix_switch=yes
-    break;
-  else
-    AC_MSG_RESULT( no )
-  fi
-
-done
-
-#
-# We didn't find any combination of switches that worked - revert to
-# no switches and hope that the fallbacks work.  A warning will be
-# printed at the end of the configure script.
-#
-
-if test ! x$local_found_posix_switch = xyes; then
-  CXXFLAGS="$XCXXFLAGS"
-fi
-
-
-#
-# Check for presense of various functions used by fish
-#
-
-AC_CHECK_FUNCS( wcsdup wcsndup wcslen wcscasecmp wcsncasecmp fwprintf )
-AC_CHECK_FUNCS( futimes wcwidth wcswidth wcstok fputwc fgetwc )
-AC_CHECK_FUNCS( wcstol wcslcat wcslcpy lrand48_r killpg )
-AC_CHECK_FUNCS( backtrace backtrace_symbols sysconf getifaddrs )
-
-if test x$local_gettext != xno; then
-  AC_CHECK_FUNCS( gettext dcgettext )
-
-#
-# The Makefile also needs to know if we have gettext, so it knows if
-# the translations should be installed.
-#
-  AC_CHECK_FUNC( gettext, HAVE_GETTEXT=1, HAVE_GETTEXT=0 )
-fi
-
-#
-# Here follows a list of small programs used to test for various
-# features that Autoconf doesn't tell us about
-#
-
-
-#
-# Check if realpath accepts null for its second argument
-#
-
-AC_MSG_CHECKING([if realpath accepts null for its second argument])
-AC_RUN_IFELSE(
-  [
-    AC_LANG_PROGRAM(
-      [
-        #include <limits.h>
-        #include <errno.h>
-        #include <stdlib.h>
-      ],
-      [
-        int status;
-        char *res;
-        res = realpath( "somefile", 0 );
-        status = !(res != 0 || errno == ENOENT);
-        exit( status );
-      ]
-    )
-  ],
-  [have_realpath_null=yes],
-  [have_realpath_null=no]
-)
-
-if test "$have_realpath_null" = yes; then
-  AC_MSG_RESULT(yes)
-  AC_DEFINE(
-    [HAVE_REALPATH_NULL],
-    [1],
-    [Define to 1 if realpath accepts null for its second argument.]
-  )
-else
-  AC_MSG_RESULT(no)
-fi
-
-
-#
-# Check if struct winsize and TIOCGWINSZ exist
-#
-
-AC_MSG_CHECKING([if struct winsize and TIOCGWINSZ exist])
-AC_LINK_IFELSE(
-  [
-    AC_LANG_PROGRAM(
-      [
-        #ifdef HAVE_TERMIOS_H
-        #include <termios.h>
-        #endif
-
-        #ifdef HAVE_SYS_IOCTL_H
-        #include <sys/ioctl.h>
-        #endif
-      ],
-      [
-        struct winsize termsize = {0};
-        TIOCGWINSZ;
-      ]
-    )
-  ],
-  [
-    AC_MSG_RESULT(yes);
-    AC_DEFINE([HAVE_WINSIZE], [1], [Define to 1 if the winsize struct and TIOCGWINSZ macro exist])
-  ],
-  [
-    AC_MSG_RESULT(no)
-  ]
-)
-
-
-#
-# If we have a fwprintf in libc, test that it actually works. As of
-# March 2006, it is broken under Dragonfly BSD.
-#
-
-if test "$ac_cv_func_fwprintf" = yes; then
-
-  AC_MSG_CHECKING([if fwprintf is broken])
-  AC_RUN_IFELSE(
-    [
-      AC_LANG_PROGRAM(
-        [
-          #include <stdlib.h>
-          #include <stdio.h>
-          #include <locale.h>
-          #include <wchar.h>
-        ],
-        [
-          setlocale( LC_ALL, "" );
-          fwprintf( stderr, L"%ls%ls", L"", L"fish:" );
-        ]
-      )
-    ],
-    [
-      AC_MSG_RESULT(no)
-    ],
-    [
-      AC_MSG_RESULT([yes])
-      AC_DEFINE([HAVE_BROKEN_FWPRINTF], [1], [Define to 1 one if the implemented fwprintf is broken])
-    ]
-  )
-
-fi
-
-
-# Check for _nl_msg_cat_cntr symbol
-AC_MSG_CHECKING([for _nl_msg_cat_cntr symbol])
-AC_TRY_LINK(
-  [
-    #if HAVE_LIBINTL_H
-    #include <libintl.h>
-    #endif
-  ],
-  [
-    extern int  _nl_msg_cat_cntr;
-    int tmp = _nl_msg_cat_cntr;
-    exit(tmp);
-  ],
-  have__nl_msg_cat_cntr=yes,
-  have__nl_msg_cat_cntr=no
-)
-if test "$have__nl_msg_cat_cntr" = yes; then
-  AC_MSG_RESULT(yes)
-  AC_DEFINE(
-    [HAVE__NL_MSG_CAT_CNTR],
-    [1],
-    [Define to 1 if the _nl_msg_cat_cntr symbol is exported.]
-  )
-else
-  AC_MSG_RESULT(no)
-fi
-
-# Check for __environ symbol
-AC_MSG_CHECKING([for __environ symbol])
-AC_TRY_LINK(
-  [
-    #include <unistd.h>
-  ],
-  [
-    extern char **__environ;
-    char **tmp = __environ;
-    exit(tmp!=0);
-  ],
-  have___environ=yes,
-  have___environ=no
-)
-if test "$have___environ" = yes; then
-  AC_MSG_RESULT(yes)
-  AC_DEFINE(
-    [HAVE___ENVIRON],
-    [1],
-    [Define to 1 if the __environ symbol is exported.]
-  )
-else
-  AC_MSG_RESULT(no)
-fi
-
-# Check if getopt_long exists and works
-AC_MSG_CHECKING([if getopt_long exists and works])
-AC_TRY_LINK(
-  [
-    #if HAVE_GETOPT_H
-    #include <getopt.h>
-    #endif
-  ],
-  [
-    static struct option
-      long_options[] =
-      {
-        0, 0, 0, 0
-      }
-    ;
-    int opt = getopt_long( 0,
-                 0,
-                 0,
-                 long_options,
-                 0 );
-
-  ],
-  have_working_getopt_long=yes,
-  have_working_getopt_long=no
-)
-if test "$have_working_getopt_long" = yes; then
-  AC_MSG_RESULT(yes)
-  AC_DEFINE(
-    [HAVE_WORKING_GETOPT_LONG],
-    [1],
-    [Define to 1 if getopt_long exists and works.]
-  )
-else
-  AC_MSG_RESULT(no)
-fi
-
-# Check if del_curterm is broken - in that case we redefine
-# del_curterm as a no-op, to avoid a double-free
-
-AC_MSG_CHECKING([If del_curterm is broken])
-case $target_os in
-  *bsd*)
-    AC_MSG_RESULT(yes)
-    AC_DEFINE(
-      [HAVE_BROKEN_DEL_CURTERM],
-      [1],
-      [del_curterm is broken, redefine it to a no-op to avoid a double-free bug]
-    )
-    ;;
-  *)
-    AC_MSG_RESULT(no)
-    ;;
-esac
-
-# Tell the world what we know
-AC_CONFIG_FILES([Makefile fish.spec])
-AC_OUTPUT
-
-if test ! x$local_found_posix_switch = xyes; then
-  echo "Can't find a combination of switches to enable common extensions like detecting window size."
-  echo "Some fish features may be disabled."
-fi
-
-echo "fish is now configured."
-echo "Use 'make' and 'make install' to build and install fish."
-