[RFC/PATCH v4 6/6] completion: add public _GIT_complete helper

[Felipe Contreras <felipe.contreras@gmail.com>]

So that users can easily define aliases, such as:

 _GIT_complete gf git_fetch

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
---
 contrib/completion/git-completion.bash |   10 +++++-----
 t/t9902-completion.sh                  |    9 ++++++++-
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 049110e..2b7ef02 100755
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -2678,6 +2678,7 @@ _gitk ()
 
 __git_func_wrap ()
 {
+	local cmd="${1#git_}" cmd_pos=1
 	if [[ -n ${ZSH_VERSION-} ]]; then
 		emulate -L bash
 		setopt KSH_TYPESET
@@ -2695,8 +2696,7 @@ __git_func_wrap ()
 	_$1
 }
 
-# this is NOT a public function; use at your own risk
-__git_complete ()
+_GIT_complete ()
 {
 	local name="${2-$1}"
 	local wrapper="_${name}_wrap"
@@ -2705,13 +2705,13 @@ __git_complete ()
 		|| complete -o default -o nospace -F $wrapper $1
 }
 
-__git_complete git
-__git_complete gitk
+_GIT_complete git
+_GIT_complete gitk
 
 # 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 [ Cygwin = "$(uname -o 2>/dev/null)" ]; then
-__git_complete git.exe git
+_GIT_complete git.exe git
 fi
diff --git a/t/t9902-completion.sh b/t/t9902-completion.sh
index 6904594..2037452 100755
--- a/t/t9902-completion.sh
+++ b/t/t9902-completion.sh
@@ -63,7 +63,7 @@ run_completion ()
 	local _cword
 	_words=( $1 )
 	(( _cword = ${#_words[@]} - 1 ))
-	_git_wrap && print_comp
+	${comp_wrap-_git_wrap} && print_comp
 }
 
 test_completion ()
@@ -316,4 +316,11 @@ test_expect_success 'global options extra checks' '
 	test_completion "git --no-pager tag -d v" "v0.1 "
 '
 
+test_expect_success 'aliases' '
+	local comp_wrap=_git_fetch_wrap &&
+	_GIT_complete gf git_fetch &&
+	test_completion "gf o" "origin " &&
+	test_completion "gf origin m" "master:master "
+'
+
 test_done
-- 
1.7.10