completion: add more parameter value completion

diff --git a/builtin/commit.c b/builtin/commit.c
index 2f4af02a27281ca9b7dc7cd579c53680f9d41b56..b9e396f5e3c3be5e735d46746f8176c623f2e536 100644 (file)
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -352,7 +352,7 @@ static const char *prepare_index(int argc, const char **argv, const char *prefix
                if (write_locked_index(&the_index, &index_lock, 0))
                        die(_("unable to create temporary index"));
 
-               old_index_env = getenv(INDEX_ENVIRONMENT);
+               old_index_env = xstrdup_or_null(getenv(INDEX_ENVIRONMENT));
                setenv(INDEX_ENVIRONMENT, get_lock_file_path(&index_lock), 1);
 
                if (interactive_add(argc, argv, prefix, patch_interactive) != 0)
@@ -362,6 +362,7 @@ static const char *prepare_index(int argc, const char **argv, const char *prefix
                        setenv(INDEX_ENVIRONMENT, old_index_env, 1);
                else
                        unsetenv(INDEX_ENVIRONMENT);
+               FREE_AND_NULL(old_index_env);
 
                discard_cache();
                read_cache_from(get_lock_file_path(&index_lock));
@@ -1037,6 +1038,10 @@ static void handle_untracked_files_arg(struct wt_status *s)
                s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
        else if (!strcmp(untracked_files_arg, "all"))
                s->show_untracked_files = SHOW_ALL_UNTRACKED_FILES;
+       /*
+        * Please update $__git_untracked_file_modes in
+        * git-completion.bash when you add new options
+        */
        else
                die(_("Invalid untracked files mode '%s'"), untracked_files_arg);
 }
@@ -1178,6 +1183,10 @@ static int parse_and_validate_options(int argc, const char *argv[],
        else if (!strcmp(cleanup_arg, "scissors"))
                cleanup_mode = use_editor ? COMMIT_MSG_CLEANUP_SCISSORS :
                                            COMMIT_MSG_CLEANUP_SPACE;
+       /*
+        * Please update _git_commit() in git-completion.bash when you
+        * add new options.
+        */
        else
                die(_("Invalid cleanup mode %s"), cleanup_arg);