commit: skip discarding the index if there is no pre-commit hook

If there is not a pre-commit hook, there is no reason to discard
the index and reread it.

This change checks to presence of a pre-commit hook and then only
discards the index if there was one.

Signed-off-by: Kevin Willford <kewillf@microsoft.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Kevin Willford 2017-08-14 15:54:25 -06:00 committed by Junio C Hamano
parent 3d9c5b5c44
commit 680ee550d7

View file

@ -943,13 +943,16 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
return 0;
}
/*
* Re-read the index as pre-commit hook could have updated it,
* and write it out as a tree. We must do this before we invoke
* the editor and after we invoke run_status above.
*/
discard_cache();
if (!no_verify && find_hook("pre-commit")) {
/*
* Re-read the index as pre-commit hook could have updated it,
* and write it out as a tree. We must do this before we invoke
* the editor and after we invoke run_status above.
*/
discard_cache();
}
read_cache_from(index_file);
if (update_main_cache_tree(0)) {
error(_("Error building trees"));
return 0;