Eric Sunshine pointed out that I had such a commit message in https://public-inbox.org/git/CAPig+cRrS0_nYJJY=o6cbov630snqhpv5qgrqdd8mw-syzn...@mail.gmail.com/ and I went on a hunt to figure out how the heck this happened.
Turns out that if there is a fixup/squash chain where the *last* command fails with merge conflicts, and we either --skip ahead or resolve the conflict to a clean tree and then --continue, our code does not do a final cleanup. Contrary to my initial gut feeling, this bug was not introduced by my rewrite in C of the core parts of rebase -i, but it looks to me as if that bug was with us for a very long time (at least the --skip part). The developer (read: user of rebase -i) in me says that we would want to fast-track this, but the author of rebase -i in me says that we should be cautious and cook this in `next` for a while. Fixes since v2 (thanks, Stefan!): - Fixed commit message of 2/4: "Thisis" -> "This is". - Reinstated the order where the `message-squash` file is renamed to `message` first, and only if that succeeded, we delete the `message-fixup` file. Johannes Schindelin (4): rebase -i: demonstrate bugs with fixup!/squash! commit messages rebase -i: Handle "combination of <n> commits" with GETTEXT_POISON sequencer: leave a tell-tale when a fixup/squash failed rebase --skip: clean up commit message after a failed fixup/squash sequencer.c | 94 ++++++++++++++++++++++++++++---------- t/t3418-rebase-continue.sh | 22 +++++++++ 2 files changed, 93 insertions(+), 23 deletions(-) base-commit: fe0a9eaf31dd0c349ae4308498c33a5c3794b293 Published-As: https://github.com/dscho/git/releases/tag/clean-msg-after-fixup-continue-v3 Fetch-It-Via: git fetch https://github.com/dscho/git clean-msg-after-fixup-continue-v3 Interdiff vs v2: diff --git a/sequencer.c b/sequencer.c index 881503a6463..b8b72fd540f 100644 --- a/sequencer.c +++ b/sequencer.c @@ -2409,6 +2409,10 @@ static int error_failed_squash(struct commit *commit, { const char *amend_type = "squash"; + if (rename(rebase_path_squash_msg(), rebase_path_message())) + return error(_("could not rename '%s' to '%s'"), + rebase_path_squash_msg(), rebase_path_message()); + if (file_exists(rebase_path_fixup_msg())) { unlink(rebase_path_fixup_msg()); amend_type = "fixup"; @@ -2418,9 +2422,6 @@ static int error_failed_squash(struct commit *commit, return error(_("could not write '%s'"), rebase_path_amend_type()); - if (rename(rebase_path_squash_msg(), rebase_path_message())) - return error(_("could not rename '%s' to '%s'"), - rebase_path_squash_msg(), rebase_path_message()); unlink(git_path_merge_msg()); if (copy_file(git_path_merge_msg(), rebase_path_message(), 0666)) return error(_("could not copy '%s' to '%s'"), -- 2.17.0.windows.1.15.gaa56ade3205
