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Merge branch 'sb/merge-commit-msg-hook'

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As "git commit" to conclude a conflicted "git merge" honors the
commit-msg hook, "git merge" that recoreds a merge commit that
cleanly auto-merges should, but it didn't.

* sb/merge-commit-msg-hook:
  builtin/merge: honor commit-msg hook for merges
This commit is contained in:
Junio C Hamano 2017-09-19 10:47:56 +09:00
commit 0543de438f
2 changed files with 68 additions and 4 deletions
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8
builtin/merge.c
View File

@ -73,6 +73,7 @@ static int show_progress = -1;
static int default_to_upstream = 1;
static int signoff;
static const char *sign_commit;
static int verify_msg = 1;
static struct strategy all_strategy[] = {
{ "recursive", DEFAULT_TWOHEAD | NO_TRIVIAL },
@ -236,6 +237,7 @@ static struct option builtin_merge_options[] = {
N_("GPG sign commit"), PARSE_OPT_OPTARG, NULL, (intptr_t) "" },
OPT_BOOL(0, "overwrite-ignore", &overwrite_ignore, N_("update ignored files (default)")),
OPT_BOOL(0, "signoff", &signoff, N_("add Signed-off-by:")),
OPT_BOOL(0, "verify", &verify_msg, N_("verify commit-msg hook")),
OPT_END()
};
@ -780,6 +782,12 @@ static void prepare_to_commit(struct commit_list *remoteheads)
if (launch_editor(git_path_merge_msg(), NULL, NULL))
abort_commit(remoteheads, NULL);
}
if (verify_msg && run_commit_hook(0 < option_edit, get_index_file(),
"commit-msg",
git_path_merge_msg(), NULL))
abort_commit(remoteheads, NULL);
read_merge_msg(&msg);
strbuf_stripspace(&msg, 0 < option_edit);
if (!msg.len)

64
t/t7504-commit-msg-hook.sh
View File

@ -101,6 +101,10 @@ cat > "$HOOK" <<EOF
exit 1
EOF
commit_msg_is () {
test "$(git log --pretty=format:%s%b -1)" = "$1"
}
test_expect_success 'with failing hook' '
echo "another" >> file &&
@ -135,6 +139,32 @@ test_expect_success '--no-verify with failing hook (editor)' '
'
test_expect_success 'merge fails with failing hook' '
test_when_finished "git branch -D newbranch" &&
test_when_finished "git checkout -f master" &&
git checkout --orphan newbranch &&
: >file2 &&
git add file2 &&
git commit --no-verify file2 -m in-side-branch &&
test_must_fail git merge --allow-unrelated-histories master &&
commit_msg_is "in-side-branch" # HEAD before merge
'
test_expect_success 'merge bypasses failing hook with --no-verify' '
test_when_finished "git branch -D newbranch" &&
test_when_finished "git checkout -f master" &&
git checkout --orphan newbranch &&
: >file2 &&
git add file2 &&
git commit --no-verify file2 -m in-side-branch &&
git merge --no-verify --allow-unrelated-histories master &&
commit_msg_is "Merge branch '\''master'\'' into newbranch"
'
chmod -x "$HOOK"
test_expect_success POSIXPERM 'with non-executable hook' '
@ -178,10 +208,6 @@ exit 0
EOF
chmod +x "$HOOK"
commit_msg_is () {
test "$(git log --pretty=format:%s%b -1)" = "$1"
}
test_expect_success 'hook edits commit message' '
echo "additional" >> file &&
@ -217,7 +243,36 @@ test_expect_success "hook doesn't edit commit message (editor)" '
echo "more plus" > FAKE_MSG &&
GIT_EDITOR="\"\$FAKE_EDITOR\"" git commit --no-verify &&
commit_msg_is "more plus"
'
test_expect_success 'hook called in git-merge picks up commit message' '
test_when_finished "git branch -D newbranch" &&
test_when_finished "git checkout -f master" &&
git checkout --orphan newbranch &&
: >file2 &&
git add file2 &&
git commit --no-verify file2 -m in-side-branch &&
git merge --allow-unrelated-histories master &&
commit_msg_is "new message"
'
test_expect_failure 'merge --continue remembers --no-verify' '
test_when_finished "git branch -D newbranch" &&
test_when_finished "git checkout -f master" &&
git checkout master &&
echo a >file2 &&
git add file2 &&
git commit --no-verify -m "add file2 to master" &&
git checkout -b newbranch master^ &&
echo b >file2 &&
git add file2 &&
git commit --no-verify file2 -m in-side-branch &&
git merge --no-verify -m not-rewritten-by-hook master &&
# resolve conflict:
echo c >file2 &&
git add file2 &&
git merge --continue &&
commit_msg_is not-rewritten-by-hook
'
# set up fake editor to replace `pick` by `reword`
@ -237,4 +292,5 @@ test_expect_success 'hook is called for reword during `rebase -i`' '
'
test_done