diff options
| author | Oswald Buddenhagen <oswald.buddenhagen@gmx.de> | 2023-09-02 10:20:35 +0300 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2023-09-03 01:20:43 +0300 |
| commit | 883cb1b8f86d437a9d664ec046fa66e5e24f4a19 (patch) | |
| tree | a7b411dc0b721e5e9d2950149b5596fe4ef8e885 | |
| parent | fac96dfbb1c24369ba7d37a5affd8adfe6c650fd (diff) | |
sequencer: beautify subject of reverts of reverts
Instead of generating a silly-looking `Revert "Revert "foo""`, make it
a more humane `Reapply "foo"`.
This is done for two reasons:
- To cover the actually common case of just a double revert.
- To encourage people to rewrite summaries of recursive reverts by
setting an example (a subsequent commit will also do this explicitly
in the documentation).
To achieve these goals, the mechanism does not need to be particularly
sophisticated. Therefore, more complicated alternatives which would
"compress more efficiently" have not been implemented.
Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
| -rw-r--r-- | sequencer.c | 11 | ||||
| -rwxr-xr-x | t/t3501-revert-cherry-pick.sh | 23 |
2 files changed, 34 insertions, 0 deletions
diff --git a/sequencer.c b/sequencer.c index 5e0c15a16b..7dc13fdcca 100644 --- a/sequencer.c +++ b/sequencer.c @@ -2249,6 +2249,8 @@ static int do_pick_commit(struct repository *r, */ if (command == TODO_REVERT) { + const char *orig_subject; + base = commit; base_label = msg.label; next = parent; @@ -2256,6 +2258,15 @@ static int do_pick_commit(struct repository *r, if (opts->commit_use_reference) { strbuf_addstr(&msgbuf, "# *** SAY WHY WE ARE REVERTING ON THE TITLE LINE ***"); + } else if (skip_prefix(msg.subject, "Revert \"", &orig_subject) && + /* + * We don't touch pre-existing repeated reverts, because + * theoretically these can be nested arbitrarily deeply, + * thus requiring excessive complexity to deal with. + */ + !starts_with(orig_subject, "Revert \"")) { + strbuf_addstr(&msgbuf, "Reapply \""); + strbuf_addstr(&msgbuf, orig_subject); } else { strbuf_addstr(&msgbuf, "Revert \""); strbuf_addstr(&msgbuf, msg.subject); diff --git a/t/t3501-revert-cherry-pick.sh b/t/t3501-revert-cherry-pick.sh index e2ef619323..4158590322 100755 --- a/t/t3501-revert-cherry-pick.sh +++ b/t/t3501-revert-cherry-pick.sh @@ -176,6 +176,29 @@ test_expect_success 'advice from failed revert' ' test_cmp expected actual ' +test_expect_subject () { + echo "$1" >expect && + git log -1 --pretty=%s >actual && + test_cmp expect actual +} + +test_expect_success 'titles of fresh reverts' ' + test_commit --no-tag A file1 && + test_commit --no-tag B file1 && + git revert --no-edit HEAD && + test_expect_subject "Revert \"B\"" && + git revert --no-edit HEAD && + test_expect_subject "Reapply \"B\"" && + git revert --no-edit HEAD && + test_expect_subject "Revert \"Reapply \"B\"\"" +' + +test_expect_success 'title of legacy double revert' ' + test_commit --no-tag "Revert \"Revert \"B\"\"" file1 && + git revert --no-edit HEAD && + test_expect_subject "Revert \"Revert \"Revert \"B\"\"\"" +' + test_expect_success 'identification of reverted commit (default)' ' test_commit to-ident && test_when_finished "git reset --hard to-ident" && |