@matheusbsbs / matheus-bagliano / commits / 9f6e63b966

merge: don't run post-hook logic on --no-verify

Fix a minor bug introduced in bc40ce4de61 (merge: --no-verify to bypass pre-merge-commit hook, 2019-08-07), when that change made the --no-verify option bypass the "pre-merge-commit" hook it didn't update the corresponding find_hook() (later hook_exists()) condition. As can be seen in the preceding commit in 6098817fd7f (git-merge: honor pre-merge-commit hook, 2019-08-07) the two should go hand in hand. There's no point in invoking discard_cache() here if the hook couldn't have possibly updated the index. It's buggy that we use "hook_exist()" here, and as discussed in the subsequent commit it's subject to obscure race conditions that we're about to fix, but for now this change is a strict improvement that retains any caveats to do with the use of "hooks_exist()" as-is. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Ævar Arnfjörð Bjarmason committed Mar 7, 2022 at 13:33 UTC 9f6e63b966e9876ca6f990819fabafc473a3c9b0

1 file changed +12 -9

builtin/merge.c

+12 -9

@@ -845,15 +845,18 @@ static void prepare_to_commit(struct commit_list *remoteheads)

845 struct strbuf msg = STRBUF_INIT;

846 const char *index_file = get_index_file();

847

848 - if (!no_verify && run_commit_hook(0 < option_edit, index_file, "pre-merge-commit", NULL))

849 - abort_commit(remoteheads, NULL);

850 - /*

851 - * Re-read the index as pre-merge-commit hook could have updated it,

852 - * and write it out as a tree. We must do this before we invoke

853 - * the editor and after we invoke run_status above.

854 - */

855 - if (hook_exists("pre-merge-commit"))

856 - discard_cache();

848 + if (!no_verify) {

849 + if (run_commit_hook(0 < option_edit, index_file,

850 + "pre-merge-commit", NULL))

851 + abort_commit(remoteheads, NULL);

852 + /*

853 + * Re-read the index as pre-merge-commit hook could have updated it,

854 + * and write it out as a tree. We must do this before we invoke

855 + * the editor and after we invoke run_status above.

856 + */

857 + if (hook_exists("pre-merge-commit"))

858 + discard_cache();

859 + }

860 read_cache_from(index_file);

861 strbuf_addbuf(&msg, &merge_msg);

862 if (squash)