Make GIT_INDEX_FILE apply to git-commit

diff --git a/git-commit.sh b/git-commit.sh
index ab43217be4b49ce71ffee461569e0e4b395dfb5d..fdaa019e8f0bdcb222043352068ca2ba6f064cf9 100755 (executable)
--- a/git-commit.sh
+++ b/git-commit.sh
@@ -26,7 +26,7 @@ refuse_partial () {
 }
 
 TMP_INDEX=
-THIS_INDEX="$GIT_DIR/index"
+THIS_INDEX="${GIT_INDEX_FILE:-$GIT_DIR/index}"
 NEXT_INDEX="$GIT_DIR/next-index$$"
 rm -f "$NEXT_INDEX"
 save_index () {