From patchwork Wed Aug 5 19:05:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Philippe Blain via GitGitGadget X-Patchwork-Id: 11702309 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 768CE1731 for ; Wed, 5 Aug 2020 19:06:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5CB4620842 for ; Wed, 5 Aug 2020 19:06:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="TngxwqfH" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727789AbgHETGo (ORCPT ); Wed, 5 Aug 2020 15:06:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40306 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728291AbgHETFt (ORCPT ); Wed, 5 Aug 2020 15:05:49 -0400 Received: from mail-wr1-x442.google.com (mail-wr1-x442.google.com [IPv6:2a00:1450:4864:20::442]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 04723C061756 for ; Wed, 5 Aug 2020 12:05:49 -0700 (PDT) Received: by mail-wr1-x442.google.com with SMTP id z18so38142484wrm.12 for ; Wed, 05 Aug 2020 12:05:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=message-id:from:date:subject:fcc:content-transfer-encoding :mime-version:to:cc; bh=6S+PdLUOfIR15iYUghOaFay92qW9JUqXCMzHAihWRT4=; b=TngxwqfHI4NlXb9UoMVINV+x4lDJK/VZGkaaP/DTcL/CRa33J0rTHyyUkjHftu4Pun ZlulIP2lzRQMzQLCAOOqxcE07qUKxBksyLuVOGvbCo7XXnaudCJzTs4A1zv5JsRsQYA4 d3AjQ/FkSHHNqWhXAxUADHUkQqNP/RY+r/Lsp14Qwqh9is7qAh44OD9pnEvCDDTdQhoV E2Z9LpCSObvGkI6xn21Sf2MzkhBlTChzqo5CLmiJ8Ii6wjP88EorgZEzhZdx8WXEpEO2 XewhAVQGAwNrf4zomkhYxOACQpXMr5qVx6DadV9QWAXPskaHQKrb2PtcYF+GBwgXBbbY ZUQw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:from:date:subject:fcc :content-transfer-encoding:mime-version:to:cc; bh=6S+PdLUOfIR15iYUghOaFay92qW9JUqXCMzHAihWRT4=; b=R0GqlsWmdsg5K/W6ICY3bSLu9+IZwG3J1tzzOpbrXM25vfsgfl7pk9w3E2Nn7TYLSL PbcoYFHRbsj2fVnS2xGiuoQIs7iB+5L1vkKVZ32ZPOKPXbLxOHBQXm7jDU8Nr3Cuccgl m+OIPlpzPjHeCN00kmFB//o6Wzv22mDLEAw9sr0tFQ/0Zz7mFpdnY8+hUQ8uV9QUJv/F 5z0/yLsvZylnOcUoM8I/SblZWN/0f3gSQjp3RIxdG4cBJeKNbWK7UUUIvuZHwUNA23Mg 2uwQaj/+Dn0fLwa0HXWjXcngWbHZjT3bz79GUJWeaQJI0heUcgcpEjT9lS/HQmhTY6Y5 Vo3w== X-Gm-Message-State: AOAM532rz2w4yDoUnoHbnuXCH0aDLkkFgGjr7snapR7hml7ZCArG4Ons pDFq6Fr8cyVAJkiStzgriZVJ4qKw X-Google-Smtp-Source: ABdhPJw7Z+9E3FioWlxmPujhi96yWknhkPgJDn6LJlBD2g5IM2Jt4TIyVFkxfg/OiUsq98LGTB5mag== X-Received: by 2002:adf:f207:: with SMTP id p7mr4022008wro.292.1596654347435; Wed, 05 Aug 2020 12:05:47 -0700 (PDT) Received: from [127.0.0.1] ([13.74.141.28]) by smtp.gmail.com with ESMTPSA id r3sm3854611wro.1.2020.08.05.12.05.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Aug 2020 12:05:46 -0700 (PDT) Message-Id: From: "Elijah Newren via GitGitGadget" Date: Wed, 05 Aug 2020 19:05:45 +0000 Subject: [PATCH] sequencer: avoid garbled merge machinery messages due to commit labels Fcc: Sent MIME-Version: 1.0 To: git@vger.kernel.org Cc: Elijah Newren , Elijah Newren Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org From: Elijah Newren sequencer's get_message() exists to provide good labels on conflict hunks; see commits d68565402a ("revert: clarify label on conflict hunks", 2010-03-20) bf975d379d ("cherry-pick, revert: add a label for ancestor", 2010-03-20) 043a4492b3 ("sequencer: factor code out of revert builtin", 2012-01-11). for background on this function. These labels are of the form ... or parent of ... These labels are then passed as branch names to the merge machinery. However, these labels, as formatted, often also serve to confuse. For example, if we have a rename involved in a content merge, then it results in text such as the following: <<<<<<<< HEAD:foo.c int j; ======== int counter; >>>>>>>> b01dface... Removed unnecessary stuff:bar.c Or in various conflict messages, it can make it very difficult to read: CONFLICT (rename/delete): foo.c deleted in b01dface... Removed unnecessary stuff and renamed in HEAD. Version HEAD of foo.c left in tree. CONFLICT (file location): dir1/foo.c added in b01dface... Removed unnecessary stuff inside a directory that was renamed in HEAD, suggesting it should perhaps be moved to dir2/foo.c. Make a minor change to remove the ellipses and add parentheses around the commit summary; this makes all three examples much easier to read: <<<<<<<< HEAD:foo.c int j; ======== int counter; >>>>>>>> b01dface (Removed unnecessary stuff):bar.c CONFLICT (rename/delete): foo.c deleted in b01dface (Removed unnecessary stuff) and renamed in HEAD. Version HEAD of foo.c left in tree. CONFLICT (file location): dir1/foo.c added in b01dface (Removed unnecessary stuff) inside a directory that was renamed in HEAD, suggesting it should perhaps be moved to dir2/foo.c. Signed-off-by: Elijah Newren --- sequencer: avoid garbled merge machinery messages due to commit labels Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-828%2Fnewren%2Fsequencer-merge-messages-v1 Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-828/newren/sequencer-merge-messages-v1 Pull-Request: https://github.com/git/git/pull/828 sequencer.c | 2 +- t/t3404-rebase-interactive.sh | 2 +- t/t3507-cherry-pick-conflict.sh | 20 ++++++++++---------- 3 files changed, 12 insertions(+), 12 deletions(-) base-commit: dc04167d378fb29d30e1647ff6ff51dd182bc9a3 diff --git a/sequencer.c b/sequencer.c index fd7701c88a..e988c12ad2 100644 --- a/sequencer.c +++ b/sequencer.c @@ -355,7 +355,7 @@ static int get_message(struct commit *commit, struct commit_message *out) subject_len = find_commit_subject(out->message, &subject); out->subject = xmemdupz(subject, subject_len); - out->label = xstrfmt("%s... %s", abbrev, out->subject); + out->label = xstrfmt("%s (%s)", abbrev, out->subject); out->parent_label = xstrfmt("parent of %s", out->label); return 0; diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh index 4a7d21f898..1d0a656ebd 100755 --- a/t/t3404-rebase-interactive.sh +++ b/t/t3404-rebase-interactive.sh @@ -256,7 +256,7 @@ test_expect_success 'stop on conflicting pick' ' D ======= G - >>>>>>> $commit... G + >>>>>>> $commit (G) EOF git tag new-branch1 && test_must_fail git rebase -i master && diff --git a/t/t3507-cherry-pick-conflict.sh b/t/t3507-cherry-pick-conflict.sh index 752bc43487..152ea11dc9 100755 --- a/t/t3507-cherry-pick-conflict.sh +++ b/t/t3507-cherry-pick-conflict.sh @@ -283,12 +283,12 @@ test_expect_success 'failed cherry-pick describes conflict in work tree' ' a ======= c - >>>>>>> objid picked + >>>>>>> objid (picked) EOF test_must_fail git cherry-pick picked && - sed "s/[a-f0-9]*\.\.\./objid/" foo >actual && + sed "s/[a-f0-9]* (/objid (/" foo >actual && test_cmp expected actual ' @@ -298,16 +298,16 @@ test_expect_success 'diff3 -m style' ' cat <<-EOF >expected && <<<<<<< HEAD a - ||||||| parent of objid picked + ||||||| parent of objid (picked) b ======= c - >>>>>>> objid picked + >>>>>>> objid (picked) EOF test_must_fail git cherry-pick picked && - sed "s/[a-f0-9]*\.\.\./objid/" foo >actual && + sed "s/[a-f0-9]* (/objid (/" foo >actual && test_cmp expected actual ' @@ -319,7 +319,7 @@ test_expect_success 'revert also handles conflicts sanely' ' a ======= b - >>>>>>> parent of objid picked + >>>>>>> parent of objid (picked) EOF { git checkout picked -- foo && @@ -345,7 +345,7 @@ test_expect_success 'revert also handles conflicts sanely' ' test_must_fail git update-index --refresh -q && test_must_fail git diff-index --exit-code HEAD && test_cmp expected-stages actual-stages && - sed "s/[a-f0-9]*\.\.\./objid/" foo >actual && + sed "s/[a-f0-9]* (/objid (/" foo >actual && test_cmp expected actual ' @@ -429,16 +429,16 @@ test_expect_success 'revert conflict, diff3 -m style' ' cat <<-EOF >expected && <<<<<<< HEAD a - ||||||| objid picked + ||||||| objid (picked) c ======= b - >>>>>>> parent of objid picked + >>>>>>> parent of objid (picked) EOF test_must_fail git revert picked && - sed "s/[a-f0-9]*\.\.\./objid/" foo >actual && + sed "s/[a-f0-9]* (/objid (/" foo >actual && test_cmp expected actual '