From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS53758 23.128.96.0/24 X-Spam-Status: No, score=-4.0 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_DNSWL_LOW, SPF_HELO_PASS,SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by dcvr.yhbt.net (Postfix) with ESMTP id B019C1F8C6 for ; Fri, 13 Aug 2021 13:07:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240572AbhHMNIE (ORCPT ); Fri, 13 Aug 2021 09:08:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46288 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240566AbhHMNID (ORCPT ); Fri, 13 Aug 2021 09:08:03 -0400 Received: from mail-wm1-x331.google.com (mail-wm1-x331.google.com [IPv6:2a00:1450:4864:20::331]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 81044C061756 for ; Fri, 13 Aug 2021 06:07:36 -0700 (PDT) Received: by mail-wm1-x331.google.com with SMTP id 79-20020a1c0452000000b002e6cf79e572so389127wme.1 for ; Fri, 13 Aug 2021 06:07:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=message-id:in-reply-to:references:from:date:subject:fcc :content-transfer-encoding:mime-version:to:cc; bh=EQ8ors4lvko58L9IGsI1EHrAFj18KXtkvxdcPJfgL74=; b=mWSVjRWdi6Dzzt8Mur7Wz7GhmGQ+0kewq+wThAwFlSUfjvtThMcrVP/dqmRRx4Vjmo FYFuzmfjMcv2o0p3oCBCG0MwmnI5VY6mDU51LEix0AtdB2WvxkiLje9bCWYbdT3FoKkM LXOJcZqaWIe7smxdZ1wcOfpKQkPBNQHWO+ndAsZAhSajJJVuY7g1NRF8QpRg/31VIecj Nn0Xb2/S354le3hOiIWN8521jaN4Y3YAYzV5hAMvVtQx5ouyhaTuMwuma0Mgx4DIQSpd TPEUpxGuvaXTqdHPLkZCGwRKul0RND6ZoYhfDIKlWZIllZKKfYGSIOdFQZOMlXlYXBE+ 8aZQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:in-reply-to:references:from:date :subject:fcc:content-transfer-encoding:mime-version:to:cc; bh=EQ8ors4lvko58L9IGsI1EHrAFj18KXtkvxdcPJfgL74=; b=li2guB7L98iTk97d6nkaYWyO31vBhPLxIMtFccJ7J4tepkPaY2dxfJ9KjRDMYUc6ZV dSZo/U1r+6lZYdx9mGa1iZenpTwiFAxSIAHQvwpaO/dz7za18K5af8KD/1gSGa07WpHU Aq1gtS7ULxgcoMRg+PUcv+wB+nKOORpoP4XesSH1qzO38ApyhR4LpIOR0G4xkDv7bfYs sa1T3MHfjAPX7ywQK7gaykJYIwVqOWC0xVUvDBj1WBQ7KJFu79COzMUQRT7sx5/A9DVE r4laqQdoJJvLg3WbB96FBikNyakTEwa+F60KeUbYBopDW7WOvYbWPrspfgmbkpj64bga gPPA== X-Gm-Message-State: AOAM532Zx6Ib8GFGzrnt2f3XcQWK4CNQhsVBKU4eBA+9GhJARAKIEsS1 LsZ3x6wnHTyUR401zIbQGZipaeKHYeQ= X-Google-Smtp-Source: ABdhPJzM35JaUIwjMwoCg0QupVmo7zIWDVWusufUSCzNgnV1cnbpvSdhK0IyjPBoDY/53ZrkqA2jvQ== X-Received: by 2002:a1c:7408:: with SMTP id p8mr2637692wmc.24.1628860055116; Fri, 13 Aug 2021 06:07:35 -0700 (PDT) Received: from [127.0.0.1] ([13.74.141.28]) by smtp.gmail.com with ESMTPSA id o22sm1243980wmq.3.2021.08.13.06.07.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Aug 2021 06:07:34 -0700 (PDT) Message-Id: In-Reply-To: References: From: "Phillip Wood via GitGitGadget" Date: Fri, 13 Aug 2021 13:07:30 +0000 Subject: [PATCH 1/4] rebase -r: make 'merge -c' behave like reword Fcc: Sent Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit MIME-Version: 1.0 To: git@vger.kernel.org Cc: Johannes Schindelin , SZEDER =?UTF-8?Q?G=C3=A1bor?= , Phillip Wood , Phillip Wood Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org From: Phillip Wood If the user runs git log while rewording a commit it is confusing if sometimes we're amending the commit that's being reworded and at other times we're creating a new commit depending on whether we could fast-forward or not[1]. For this reason the reword command ensures that there are no uncommitted changes when rewording. The reword command also allows the user to edit the todo list while the rebase is paused. As 'merge -c' also rewords commits make it behave like reword and add a test. [1] https://lore.kernel.org/git/xmqqlfvu4be3.fsf@gitster-ct.c.googlers.com/T/#m133009cb91cf0917bcf667300f061178be56680a Signed-off-by: Phillip Wood --- sequencer.c | 24 +++++++++++-------- t/lib-rebase.sh | 50 ++++++++++++++++++++++++++++++++++++++++ t/t3430-rebase-merges.sh | 20 ++++++++-------- 3 files changed, 75 insertions(+), 19 deletions(-) diff --git a/sequencer.c b/sequencer.c index 7f07cd00f3f..cc8a361cceb 100644 --- a/sequencer.c +++ b/sequencer.c @@ -3739,10 +3739,9 @@ static struct commit *lookup_label(const char *label, int len, static int do_merge(struct repository *r, struct commit *commit, const char *arg, int arg_len, - int flags, struct replay_opts *opts) + int flags, int *check_todo, struct replay_opts *opts) { - int run_commit_flags = (flags & TODO_EDIT_MERGE_MSG) ? - EDIT_MSG | VERIFY_MSG : 0; + int run_commit_flags = 0; struct strbuf ref_name = STRBUF_INIT; struct commit *head_commit, *merge_commit, *i; struct commit_list *bases, *j, *reversed = NULL; @@ -3898,10 +3897,9 @@ static int do_merge(struct repository *r, rollback_lock_file(&lock); ret = fast_forward_to(r, &commit->object.oid, &head_commit->object.oid, 0, opts); - if (flags & TODO_EDIT_MERGE_MSG) { - run_commit_flags |= AMEND_MSG; + if (flags & TODO_EDIT_MERGE_MSG) goto fast_forward_edit; - } + goto leave_merge; } @@ -4035,10 +4033,17 @@ static int do_merge(struct repository *r, * value (a negative one would indicate that the `merge` * command needs to be rescheduled). */ - fast_forward_edit: ret = !!run_git_commit(git_path_merge_msg(r), opts, run_commit_flags); + if (!ret && flags & TODO_EDIT_MERGE_MSG) { + fast_forward_edit: + *check_todo = 1; + run_commit_flags |= AMEND_MSG | EDIT_MSG | VERIFY_MSG; + ret = !!run_git_commit(NULL, opts, run_commit_flags); + } + + leave_merge: strbuf_release(&ref_name); rollback_lock_file(&lock); @@ -4405,9 +4410,8 @@ static int pick_commits(struct repository *r, if ((res = do_reset(r, arg, item->arg_len, opts))) reschedule = 1; } else if (item->command == TODO_MERGE) { - if ((res = do_merge(r, item->commit, - arg, item->arg_len, - item->flags, opts)) < 0) + if ((res = do_merge(r, item->commit, arg, item->arg_len, + item->flags, &check_todo, opts)) < 0) reschedule = 1; else if (item->commit) record_in_rewritten(&item->commit->object.oid, diff --git a/t/lib-rebase.sh b/t/lib-rebase.sh index dc75b834518..99d9e7efd2d 100644 --- a/t/lib-rebase.sh +++ b/t/lib-rebase.sh @@ -151,3 +151,53 @@ test_editor_unchanged () { EOF test_cmp expect actual } + +# Set up an editor for testing reword commands +# Checks that there are no uncommitted changes when rewording and that the +# todo-list is reread after each +set_reword_editor () { + >reword-actual && + >reword-oid && + + # Check rewording keeps the original authorship + GIT_AUTHOR_NAME="Reword Author" + GIT_AUTHOR_EMAIL="reword.author@example.com" + GIT_AUTHOR_DATE=@123456 + + write_script reword-sequence-editor.sh <<-\EOF && + todo="$(cat "$1")" && + echo "exec git log -1 --pretty=format:'%an <%ae> %at%n%B%n' \ + >>reword-actual" >"$1" && + printf "%s\n" "$todo" >>"$1" + EOF + + write_script reword-editor.sh <<-EOF && + # Save the oid of the first reworded commit so we can check rebase + # fast-forwards to it + if ! test -s reword-oid + then + git rev-parse HEAD >reword-oid + fi && + # There should be no uncommited changes + git diff --exit-code HEAD && + # The todo-list should be re-read after a reword + GIT_SEQUENCE_EDITOR="\"$PWD/reword-sequence-editor.sh\"" \ + git rebase --edit-todo && + echo edited >>"\$1" + EOF + + test_set_editor "$PWD/reword-editor.sh" +} + +# Check the results of a rebase after calling set_reword_editor +# Pass the commits that were reworded in the order that they were picked +# Expects the first pick to be a fast-forward +check_reworded_commits () { + test_cmp_rev "$(cat reword-oid)" "$1^{commit}" && + git log --format="%an <%ae> %at%n%B%nedited%n" --no-walk=unsorted "$@" \ + >reword-expected && + test_cmp reword-expected reword-actual && + git log --format="%an <%ae> %at%n%B" -n $# --first-parent --reverse \ + >reword-log && + test_cmp reword-expected reword-log +} diff --git a/t/t3430-rebase-merges.sh b/t/t3430-rebase-merges.sh index 6748070df52..183c3a23838 100755 --- a/t/t3430-rebase-merges.sh +++ b/t/t3430-rebase-merges.sh @@ -172,17 +172,19 @@ test_expect_success 'failed `merge ` does not crash' ' grep "^Merge branch ${SQ}G${SQ}$" .git/rebase-merge/message ' -test_expect_success 'fast-forward merge -c still rewords' ' - git checkout -b fast-forward-merge-c H && +test_expect_success 'merge -c commits before rewording and reloads todo-list' ' + cat >script-from-scratch <<-\EOF && + merge -c E B + merge -c H G + EOF + + git checkout -b merge-c H && ( - set_fake_editor && - FAKE_COMMIT_MESSAGE=edited \ - GIT_SEQUENCE_EDITOR="echo merge -c H G >" \ - git rebase -ir @^ + set_reword_editor && + GIT_SEQUENCE_EDITOR="\"$PWD/replace-editor.sh\"" \ + git rebase -i -r D ) && - echo edited >expected && - git log --pretty=format:%B -1 >actual && - test_cmp expected actual + check_reworded_commits E H ' test_expect_success 'with a branch tip that was cherry-picked already' ' -- gitgitgadget