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completion: add proper public __git_complete 

When __git_complete was introduced, it was meant to be temporarily, while
a proper guideline for public shell functions was established
(tentatively _GIT_complete), but since that never happened, people
in the wild started to use __git_complete, even though it was marked as
not public.

Eight years is more than enough wait, let's mark this function as
public, and make it a bit more user-friendly.

So that instead of doing:

  __git_complete gk __gitk_main

The user can do:

  __git_complete gk gitk

And instead of:

  __git_complete gf _git_fetch

Do:

  __git_complete gf git_fetch

Backwards compatibility is maintained.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Felipe Contreras 2020-12-30 17:29:50 -06:00 committed by Junio C Hamano
parent 0e02bdc17a
commit 5a067ba9d0
2 changed files with 46 additions and 8 deletions
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40
contrib/completion/git-completion.bash
View File

@ -29,6 +29,15 @@
# tell the completion to use commit completion. This also works with aliases
# of form "!sh -c '...'". For example, "!sh -c ': git commit ; ... '".
#
# If you have a command that is not part of git, but you would still
# like completion, you can use __git_complete:
#
# __git_complete gl git_log
#
# Or if it's a main command (i.e. git or gitk):
#
# __git_complete gk gitk
#
# Compatible with bash 3.2.57.
#
# You can set the following environment variables to influence the behavior of
@ -3497,10 +3506,7 @@ __git_func_wrap ()
$1
}
# Setup completion for certain functions defined above by setting common
# variables and workarounds.
# This is NOT a public function; use at your own risk.
__git_complete ()
___git_complete ()
{
local wrapper="__git_wrap${2}"
eval "$wrapper () { __git_func_wrap $2 ; }"
@ -3508,13 +3514,33 @@ __git_complete ()
|| complete -o default -o nospace -F $wrapper $1
}
__git_complete git __git_main
__git_complete gitk __gitk_main
# Setup the completion for git commands
# 1: command or alias
# 2: function to call (e.g. `git`, `gitk`, `git_fetch`)
__git_complete ()
{
local func
if __git_have_func $2; then
func=$2
elif __git_have_func __$2_main; then
func=__$2_main
elif __git_have_func _$2; then
func=_$2
else
echo "ERROR: could not find function '$2'" 1>&2
return 1
fi
___git_complete $1 $func
}
___git_complete git __git_main
___git_complete gitk __gitk_main
# The following are necessary only for Cygwin, and only are needed
# when the user has tab-completed the executable name and consequently
# included the '.exe' suffix.
#
if [ "$OSTYPE" = cygwin ]; then
__git_complete git.exe __git_main
___git_complete git.exe __git_main
fi

14
t/t9902-completion.sh
View File

@ -2382,10 +2382,22 @@ test_expect_success 'sourcing the completion script clears cached --options' '
test_expect_success '__git_complete' '
unset -f __git_wrap__git_main &&
__git_complete foo __git_main &&
__git_have_func __git_wrap__git_main &&
unset -f __git_wrap__git_main &&
__git_complete gf _git_fetch &&
__git_have_func __git_wrap_git_fetch
__git_have_func __git_wrap_git_fetch &&
__git_complete foo git &&
__git_have_func __git_wrap__git_main &&
unset -f __git_wrap__git_main &&
__git_complete gd git_diff &&
__git_have_func __git_wrap_git_diff &&
test_must_fail __git_complete ga missing
'
test_done