[PATCH] t9902: Instruct git-completion.bash about a test mode

["Jean-Noël AVILA" <jn.avila@free.fr>]

In test mode, git completion should propose commands only if they
belong to the list of authorized commands.

Signed-off-by: Jean-Noel Avila <jn.avila@free.fr>
---

Better show some code than try to explain. Here is what I mean by
"filter the output git help -a". 

 contrib/completion/git-completion.bash | 16 +++++++++++++++-
 t/t9902-completion.sh                  |  4 ++--
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 14dd5e7..6490553 100644
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -531,6 +531,20 @@ __git_complete_strategy ()
 	return 1
 }
 
+if test -z "$AUTHORIZED_CMD_LIST"; then
+	__git_cmdlist ()
+	{ 
+		echo $1;
+	}
+else
+	__git_cmdlist ()
+	{ 
+		if [[ " $AUTHORIZED_CMD_LIST " =~ " $1 " ]] ; then
+				echo $1
+		fi
+	}
+fi
+
 __git_list_all_commands ()
 {
 	local i IFS=" "$'\n'
@@ -538,7 +552,7 @@ __git_list_all_commands ()
 	do
 		case $i in
 		*--*)             : helper pattern;;
-		*) echo $i;;
+		*) __git_cmdlist $i;;
 		esac
 	done
 }
diff --git a/t/t9902-completion.sh b/t/t9902-completion.sh
index 3cd53f8..5e7d81e 100755
--- a/t/t9902-completion.sh
+++ b/t/t9902-completion.sh
@@ -12,8 +12,8 @@ complete ()
 	# do nothing
 	return 0
 }
-
-. "$GIT_BUILD_DIR/contrib/completion/git-completion.bash"
+AUTHORIZED_CMD_LIST=" checkout show add filter-branch ls-files send-email describe"
+. "$GIT_BUILD_DIR/contrib/completion/git-completion.bash" 
 
 # We don't need this function to actually join words or do anything special.
 # Also, it's cleaner to avoid touching bash's internal completion variables.
-- 
1.8.1.1.271.g02f55e6