diff --git a/sequencer.c b/sequencer.c index 6b2f01f6d6..2eb5ec7227 100644 --- a/sequencer.c +++ b/sequencer.c @@ -2773,19 +2773,16 @@ static int continue_single_pick(void) return run_command_v_opt(argv, RUN_GIT_CMD); } -static int commit_staged_changes(struct replay_opts *opts) +static int commit_staged_changes(struct replay_opts *opts, + struct todo_list *todo_list) { unsigned int flags = ALLOW_EMPTY | EDIT_MSG; + unsigned int final_fixup = 0, is_clean; if (has_unstaged_changes(1)) return error(_("cannot rebase: You have unstaged changes.")); - if (!has_uncommitted_changes(0)) { - const char *cherry_pick_head = git_path_cherry_pick_head(); - if (file_exists(cherry_pick_head) && unlink(cherry_pick_head)) - return error(_("could not remove CHERRY_PICK_HEAD")); - return 0; - } + is_clean = !has_uncommitted_changes(0); if (file_exists(rebase_path_amend())) { struct strbuf rev = STRBUF_INIT; @@ -2798,19 +2795,107 @@ static int commit_staged_changes(struct replay_opts *opts) if (get_oid_hex(rev.buf, &to_amend)) return error(_("invalid contents: '%s'"), rebase_path_amend()); - if (oidcmp(&head, &to_amend)) + if (!is_clean && oidcmp(&head, &to_amend)) return error(_("\nYou have uncommitted changes in your " "working tree. Please, commit them\n" "first and then run 'git rebase " "--continue' again.")); + /* + * When skipping a failed fixup/squash, we need to edit the + * commit message, the current fixup list and count, and if it + * was the last fixup/squash in the chain, we need to clean up + * the commit message and if there was a squash, let the user + * edit it. + */ + if (is_clean && !oidcmp(&head, &to_amend) && + opts->current_fixup_count > 0 && + file_exists(rebase_path_stopped_sha())) { + const char *p = opts->current_fixups.buf; + int len = opts->current_fixups.len; + + opts->current_fixup_count--; + if (!len) + BUG("Incorrect current_fixups:\n%s", p); + while (len && p[len - 1] != '\n') + len--; + strbuf_setlen(&opts->current_fixups, len); + if (write_message(p, len, rebase_path_current_fixups(), + 0) < 0) + return error(_("could not write file: '%s'"), + rebase_path_current_fixups()); + + /* + * If a fixup/squash in a fixup/squash chain failed, the + * commit message is already correct, no need to commit + * it again. + * + * Only if it is the final command in the fixup/squash + * chain, and only if the chain is longer than a single + * fixup/squash command (which was just skipped), do we + * actually need to re-commit with a cleaned up commit + * message. + */ + if (opts->current_fixup_count > 0 && + !is_fixup(peek_command(todo_list, 0))) { + final_fixup = 1; + /* + * If there was not a single "squash" in the + * chain, we only need to clean up the commit + * message, no need to bother the user with + * opening the commit message in the editor. + */ + if (!starts_with(p, "squash ") && + !strstr(p, "\nsquash ")) + flags = (flags & ~EDIT_MSG) | CLEANUP_MSG; + } else if (is_fixup(peek_command(todo_list, 0))) { + /* + * We need to update the squash message to skip + * the latest commit message. + */ + struct commit *commit; + const char *path = rebase_path_squash_msg(); + + if (parse_head(&commit) || + !(p = get_commit_buffer(commit, NULL)) || + write_message(p, strlen(p), path, 0)) { + unuse_commit_buffer(commit, p); + return error(_("could not write file: " + "'%s'"), path); + } + unuse_commit_buffer(commit, p); + } + } strbuf_release(&rev); flags |= AMEND_MSG; } - if (run_git_commit(rebase_path_message(), opts, flags)) + if (is_clean) { + const char *cherry_pick_head = git_path_cherry_pick_head(); + + if (file_exists(cherry_pick_head) && unlink(cherry_pick_head)) + return error(_("could not remove CHERRY_PICK_HEAD")); + if (!final_fixup) + return 0; + } + + if (run_git_commit(final_fixup ? NULL : rebase_path_message(), + opts, flags)) return error(_("could not commit staged changes.")); unlink(rebase_path_amend()); + if (final_fixup) { + unlink(rebase_path_fixup_msg()); + unlink(rebase_path_squash_msg()); + } + if (opts->current_fixup_count > 0) { + /* + * Whether final fixup or not, we just cleaned up the commit + * message... + */ + unlink(rebase_path_current_fixups()); + strbuf_reset(&opts->current_fixups); + opts->current_fixup_count = 0; + } return 0; } @@ -2822,14 +2907,16 @@ int sequencer_continue(struct replay_opts *opts) if (read_and_refresh_cache(opts)) return -1; + if (read_populate_opts(opts)) + return -1; if (is_rebase_i(opts)) { - if (commit_staged_changes(opts)) + if ((res = read_populate_todo(&todo_list, opts))) + goto release_todo_list; + if (commit_staged_changes(opts, &todo_list)) return -1; } else if (!file_exists(get_todo_path(opts))) return continue_single_pick(); - if (read_populate_opts(opts)) - return -1; - if ((res = read_populate_todo(&todo_list, opts))) + else if ((res = read_populate_todo(&todo_list, opts))) goto release_todo_list; if (!is_rebase_i(opts)) { diff --git a/t/t3418-rebase-continue.sh b/t/t3418-rebase-continue.sh index 69cb079dd1..e9fd029160 100755 --- a/t/t3418-rebase-continue.sh +++ b/t/t3418-rebase-continue.sh @@ -88,14 +88,14 @@ test_expect_success 'rebase passes merge strategy options correctly' ' git rebase --continue ' -test_expect_failure '--skip after failed fixup cleans commit message' ' +test_expect_success '--skip after failed fixup cleans commit message' ' test_when_finished "test_might_fail git rebase --abort" && git checkout -b with-conflicting-fixup && test_commit wants-fixup && test_commit "fixup! wants-fixup" wants-fixup.t 1 wants-fixup-1 && test_commit "fixup! wants-fixup" wants-fixup.t 2 wants-fixup-2 && test_commit "fixup! wants-fixup" wants-fixup.t 3 wants-fixup-3 && - test_must_fail env FAKE_LINES="1 fixup 2 fixup 4" \ + test_must_fail env FAKE_LINES="1 fixup 2 squash 4" \ git rebase -i HEAD~4 && : now there is a conflict, and comments in the commit message && @@ -103,11 +103,38 @@ test_expect_failure '--skip after failed fixup cleans commit message' ' grep "fixup! wants-fixup" out && : skip and continue && - git rebase --skip && + echo "cp \"\$1\" .git/copy.txt" | write_script copy-editor.sh && + (test_set_editor "$PWD/copy-editor.sh" && git rebase --skip) && + + : the user should not have had to edit the commit message && + test_path_is_missing .git/copy.txt && : now the comments in the commit message should have been cleaned up && git show HEAD >out && - ! grep "fixup! wants-fixup" out + ! grep "fixup! wants-fixup" out && + + : now, let us ensure that "squash" is handled correctly && + git reset --hard wants-fixup-3 && + test_must_fail env FAKE_LINES="1 squash 4 squash 2 squash 4" \ + git rebase -i HEAD~4 && + + : the first squash failed, but there are two more in the chain && + (test_set_editor "$PWD/copy-editor.sh" && + test_must_fail git rebase --skip) && + + : not the final squash, no need to edit the commit message && + test_path_is_missing .git/copy.txt && + + : The first squash was skipped, therefore: && + git show HEAD >out && + test_i18ngrep "# This is a combination of 2 commits" out && + + (test_set_editor "$PWD/copy-editor.sh" && git rebase --skip) && + git show HEAD >out && + test_i18ngrep ! "# This is a combination" out && + + : Final squash failed, but there was still a squash && + test_i18ngrep "# This is a combination of 2 commits" .git/copy.txt ' test_expect_success 'setup rerere database' '