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merge: Honor prepare-commit-msg return code

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65969d4 (merge: honor prepare-commit-msg hook, 2011-02-14) tried to
make "git commit" and "git merge" consistent, because a merge that
required user assistance has to be concluded with "git commit", but
back then only "git commit" triggered prepare-commit-msg hook.

When it added a call to run the prepare-commit-msg hook, however, it
forgot to check the exit code from the hook like "git commit" does,
and ended up replacing one inconsistency with another.

When prepare-commit-msg hook that is run from "git merge" exits with
a non-zero status, abort the commit.

Signed-off-by: Antoine Pelisse <apelisse@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Antoine Pelisse 2013-01-02 19:42:50 +01:00 committed by Junio C Hamano
parent 15999998fb
commit 3e4141d08c
2 changed files with 17 additions and 2 deletions
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5
builtin/merge.c
View file

@ -903,8 +903,9 @@ static void prepare_to_commit(struct commit_list *remoteheads)
if (0 < option_edit)
strbuf_add_lines(&msg, "# ", comment, strlen(comment));
write_merge_msg(&msg);
run_hook(get_index_file(), "prepare-commit-msg",
git_path("MERGE_MSG"), "merge", NULL, NULL);
if (run_hook(get_index_file(), "prepare-commit-msg",
git_path("MERGE_MSG"), "merge", NULL, NULL))
abort_commit(remoteheads, NULL);
if (0 < option_edit) {
if (launch_editor(git_path("MERGE_MSG"), NULL, NULL))
abort_commit(remoteheads, NULL);

14
t/t7505-prepare-commit-msg-hook.sh
View file

@ -167,5 +167,19 @@ test_expect_success 'with failing hook (--no-verify)' '
'
test_expect_success 'with failing hook (merge)' '
git checkout -B other HEAD@{1} &&
echo "more" >> file &&
git add file &&
rm -f "$HOOK" &&
git commit -m other &&
write_script "$HOOK" <<-EOF
exit 1
EOF
git checkout - &&
test_must_fail git merge other
'
test_done