From f7d42ceec5265f6dbcaeb527657521b7ec8ddc94 Mon Sep 17 00:00:00 2001 From: Johannes Schindelin Date: Thu, 28 Jan 2021 16:16:42 +0000 Subject: [PATCH] rebase -i: do leave commit message intact in fixup! chains MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In 6e98de72c03 (sequencer (rebase -i): add support for the 'fixup' and 'squash' commands, 2017-01-02), this developer introduced a change of behavior by mistake: when encountering a `fixup!` commit (or multiple `fixup!` commits) without any `squash!` commit thrown in, the final `git commit` was invoked with `--cleanup=strip`. Prior to that commit, the commit command had been called without that `--cleanup` option. Since we explicitly read the original commit message from a file in that case, there is really no sense in forcing that clean-up. We actually need to actively suppress that clean-up lest a configured `commit.cleanup` may interfere with what we want to do: leave the commit message unchanged. Reported-by: Vojtěch Knyttl Helped-by: Martin Ågren Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- sequencer.c | 13 ++++++++++++- t/t3415-rebase-autosquash.sh | 8 ++++++++ 2 files changed, 20 insertions(+), 1 deletion(-) diff --git a/sequencer.c b/sequencer.c index 8909a46770..264d494a64 100644 --- a/sequencer.c +++ b/sequencer.c @@ -943,6 +943,7 @@ N_("you have staged changes in your working tree\n" #define CLEANUP_MSG (1<<3) #define VERIFY_MSG (1<<4) #define CREATE_ROOT_COMMIT (1<<5) +#define VERBATIM_MSG (1<<6) static int run_command_silent_on_success(struct child_process *cmd) { @@ -979,6 +980,9 @@ static int run_git_commit(const char *defmsg, { struct child_process cmd = CHILD_PROCESS_INIT; + if ((flags & CLEANUP_MSG) && (flags & VERBATIM_MSG)) + BUG("CLEANUP_MSG and VERBATIM_MSG are mutually exclusive"); + cmd.git_cmd = 1; if (is_rebase_i(opts) && read_env_script(&cmd.env_array)) { @@ -1012,6 +1016,8 @@ static int run_git_commit(const char *defmsg, strvec_pushl(&cmd.args, "-C", "HEAD", NULL); if ((flags & CLEANUP_MSG)) strvec_push(&cmd.args, "--cleanup=strip"); + if ((flags & VERBATIM_MSG)) + strvec_push(&cmd.args, "--cleanup=verbatim"); if ((flags & EDIT_MSG)) strvec_push(&cmd.args, "-e"); else if (!(flags & CLEANUP_MSG) && @@ -1380,6 +1386,9 @@ static int try_to_commit(struct repository *r, enum commit_msg_cleanup_mode cleanup; int res = 0; + if ((flags & CLEANUP_MSG) && (flags & VERBATIM_MSG)) + BUG("CLEANUP_MSG and VERBATIM_MSG are mutually exclusive"); + if (parse_head(r, ¤t_head)) return -1; @@ -1454,6 +1463,8 @@ static int try_to_commit(struct repository *r, if (flags & CLEANUP_MSG) cleanup = COMMIT_MSG_CLEANUP_ALL; + else if (flags & VERBATIM_MSG) + cleanup = COMMIT_MSG_CLEANUP_NONE; else if ((opts->signoff || opts->record_origin) && !opts->explicit_cleanup) cleanup = COMMIT_MSG_CLEANUP_SPACE; @@ -2002,7 +2013,7 @@ static int do_pick_commit(struct repository *r, if (!final_fixup) msg_file = rebase_path_squash_msg(); else if (file_exists(rebase_path_fixup_msg())) { - flags |= CLEANUP_MSG; + flags |= VERBATIM_MSG; msg_file = rebase_path_fixup_msg(); } else { const char *dest = git_path_squash_msg(r); diff --git a/t/t3415-rebase-autosquash.sh b/t/t3415-rebase-autosquash.sh index 7bab6000dc..88040bc435 100755 --- a/t/t3415-rebase-autosquash.sh +++ b/t/t3415-rebase-autosquash.sh @@ -440,4 +440,12 @@ test_expect_success 'fixup a fixup' ' test XZWY = $(git show | tr -cd W-Z) ' +test_expect_success 'fixup does not clean up commit message' ' + oneline="#818" && + git commit --allow-empty -m "$oneline" && + git commit --fixup HEAD --allow-empty && + git -c commit.cleanup=strip rebase -ki --autosquash HEAD~2 && + test "$oneline" = "$(git show -s --format=%s)" +' + test_done