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commit: honor advice.statusHints when rejecting an empty commit

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In ea9882bfc4 (commit: disable status hints when writing to
COMMIT_EDITMSG, 2013-09-12) the intent was to disable status hints
when writing to COMMIT_EDITMSG, because giving the hints in the "git
status" like output in the commit message template are too late to
be useful (they say things like "'git add' to stage", but that is
only possible after aborting the current "git commit" session).

But there is one case that the hints can be useful: When the current
attempt to commit is rejected because no change is recorded in the
index.  The message is given and "git commit" errors out, so the
hints can immediately be followed by the user.  Teach the codepath
to honor the configuration variable.

Signed-off-by: Heba Waly <heba.waly@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Heba Waly 2019-12-17 09:17:22 +00:00 committed by Junio C Hamano
parent 53a06cf39b
commit 5c4f55f1f6
2 changed files with 10 additions and 0 deletions
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1
builtin/commit.c
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@ -944,6 +944,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
*/
if (!committable && whence != FROM_MERGE && !allow_empty &&
!(amend && is_a_merge(current_head))) {
s->hints = advice_status_hints;
s->display_comment_prefix = old_display_comment_prefix;
run_status(stdout, index_file, prefix, 0, s);
if (amend)

9
t/t7500-commit-template-squash-signoff.sh
View File

@ -382,4 +382,13 @@ test_expect_success 'check commit with unstaged rename and copy' '
)
'
test_expect_success 'commit without staging files fails and displays hints' '
echo "initial" >file &&
git add file &&
git commit -m initial &&
echo "changes" >>file &&
test_must_fail git commit -m update >actual &&
test_i18ngrep "no changes added to commit (use \"git add\" and/or \"git commit -a\")" actual
'
test_done