[PATCH 3/3] completion: use specified file (if any) when completing config vars

[Stephen Boyd <bebarino@gmail.com>]

Only list the variables that can actually be affected by the command by
searching the arguments for a config file setting.

Signed-off-by: Stephen Boyd <bebarino@gmail.com>
---
 contrib/completion/git-completion.bash |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index f179cc8..8a9863b 100755
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -1349,7 +1349,10 @@ _git_send_email ()
 
 __git_config_get_set_variables ()
 {
-	for i in $(git --git-dir="$(__gitdir)" config --list); do
+	local args="--global --system --file= -f"
+	local config_file="$(__git_find_argument_and_value "$args")"
+	for i in $(git --git-dir="$(__gitdir)" config $config_file --list \
+			2>/dev/null); do
 		case "$i" in
 		*.*)
 			echo "${i/=*/}"
-- 
1.6.3.rc4.29.g8146