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Show info about all-the-package-names helper for yarn/npm completions

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The informational message is only shown the first time an attempt at
completing `yarn add` is made per session. This should vastly improve
the discoverability of this feature as regular yarn/npm users would
never have `all-the-package-names` installed normally.
This commit is contained in:
Mahmoud Al-Qudsi
2019-01-10 22:34:30 -06:00
parent 848ca1c1cc
commit 56cedac3b5
1 changed files with 14 additions and 10 deletions
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24
share/completions/yarn.fish
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@@ -4,27 +4,31 @@
# If all-the-package-names is installed, it will be used to generate npm completions.
# Install globally with `sudo npm install -g all-the-package-names`. Keep it up to date.
function __yarn_list_packages
function __yarn_helper_installed
if not type -q all-the-package-names
return
if not set -qg __fish_yarn_pkg_info_shown
set -l old (commandline)
commandline -r ""
echo \nfish: Run `yarn global add all-the-package-names` to gain intelligent \
package completion > /dev/stderr
commandline -f repaint
commandline -r $old
set -g __fish_yarn_pkg_info_shown 1
end
return 1
end
all-the-package-names
end
# Entire list of packages is too long to be used efficiently in a `complete` subcommand.
# Search it for matches instead.
function __yarn_filtered_list_packages
# We used to avoid the duplication of this check by calling __yarn_list_packages
# instead of all-the-package-names directly below, but a) that breaks IO buffering
# because the output of all-the-package-names is > 10 MiB (#5267), and b) IO
# buffering slowed down the call considerably in all cases.
if not type -q all-the-package-names
if not __yarn_helper_installed
return
end
# Do not provide any completions if nothing has been entered yet
# Do not provide any completions if nothing has been entered yet to avoid long hang.
if string match -r . (commandline -ct)
# Filter the results here rather than in the C++ code due to #5267
all-the-package-names | string match -er -- "(?:\\b|_)"(commandline -ct |
string escape --style=regex) | head -n1000
end