sequencer: do not update/refresh index if the lock cannot be held
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/sequencer.c b/sequencer.c
index bde5f04..7b886a6 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -679,7 +679,7 @@
if (read_index_preload(&the_index, NULL) < 0)
die(_("git %s: failed to read the index"), action_name(opts));
refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, NULL, NULL, NULL);
- if (the_index.cache_changed) {
+ if (the_index.cache_changed && index_fd >= 0) {
if (write_index(&the_index, index_fd) ||
commit_locked_index(&index_lock))
die(_("git %s: failed to refresh the index"), action_name(opts));
