From dbd228cc75d29cbc46445f22d8f2c6285fc40021 Mon Sep 17 00:00:00 2001
From: Mahmoud Al-Qudsi <mqudsi@neosmart.net>
Date: Wed, 26 Sep 2018 12:36:57 -0500
Subject: [PATCH] Add `hash` function for compatibility with sh/bash

---
 CHANGELOG.md              |  1 +
 share/functions/hash.fish | 10 ++++++++++
 2 files changed, 11 insertions(+)
 create mode 100644 share/functions/hash.fish

diff --git a/CHANGELOG.md b/CHANGELOG.md
index d812c21c2..32cb43678 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -68,6 +68,7 @@ fish 3.0 is a major release which brings with it both improvements in functional
 - `test` and `[` now support floating point values in numeric comparisons.
 - Autosuggestions try to avoid arguments that are already present in the command line.
 - Variables may be used inside commands (#154).
+- A `hash` function has been added for compatibiility with `sh` and `bash`
 
 ## Other significant changes
 - Command substitution output is now limited to 10 MB by default (#3822).
diff --git a/share/functions/hash.fish b/share/functions/hash.fish
new file mode 100644
index 000000000..d449a4725
--- /dev/null
+++ b/share/functions/hash.fish
@@ -0,0 +1,10 @@
+# Under (ba)sh, `hash` acts like a caching `which`, but it doesn't print
+# anything on success. Its return code is used to determine success vs failure.
+function hash
+	if not set -q argv[1]
+		echo "Usage: hash FILE" >&2
+		return 1
+	end
+	which $argv[1] 2>/dev/null 1>/dev/null
+	or printf "%s: not found!\n" $argv[1] >&2 && return 2 # ENOENT
+end