wt-status: implement opportunisitc index update correctly

The require_clean_work_tree() function calls hold_locked_index()
with die_on_error=0 to signal that it is OK if it fails to obtain
the lock, but unconditionally calls update_index_if_able(), which
will try to write into fd=-1.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano 2016-12-07 11:11:26 -08:00
parent 8d7a455ed5
commit 89d38fb266

View File

@ -2258,11 +2258,12 @@ int has_uncommitted_changes(int ignore_submodules)
int require_clean_work_tree(const char *action, const char *hint, int ignore_submodules, int gently)
{
struct lock_file *lock_file = xcalloc(1, sizeof(*lock_file));
int err = 0;
int err = 0, fd;
hold_locked_index(lock_file, 0);
fd = hold_locked_index(lock_file, 0);
refresh_cache(REFRESH_QUIET);
update_index_if_able(&the_index, lock_file);
if (0 <= fd)
update_index_if_able(&the_index, lock_file);
rollback_lock_file(lock_file);
if (has_unstaged_changes(ignore_submodules)) {