From patchwork Thu Feb 23 05:34:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Henrie X-Patchwork-Id: 13149870 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4F2D0C61DA4 for ; Thu, 23 Feb 2023 05:34:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233192AbjBWFe4 (ORCPT ); Thu, 23 Feb 2023 00:34:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50592 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233132AbjBWFet (ORCPT ); Thu, 23 Feb 2023 00:34:49 -0500 Received: from mail-pl1-x635.google.com (mail-pl1-x635.google.com [IPv6:2607:f8b0:4864:20::635]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1C857271D for ; Wed, 22 Feb 2023 21:34:48 -0800 (PST) Received: by mail-pl1-x635.google.com with SMTP id z2so11664749plf.12 for ; Wed, 22 Feb 2023 21:34:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=JLEMVH9RTBoP6j0fkKOr1RGoJg5q2GIkRVjMHaZlDpA=; b=BsX1Mf8lq3R0y8mbxN23DlD8Qcpjsxn2Dfkhbkb9iZFxK1Pfm/sDsOn3ferKul/3HE OBUkn1U6gZhzeLPZn8UdDFZvF7rsu7E5wAuS9Dr6zr+7kGoS8N/QRJtI9ZOFGW6VOcHw rEF/jEcs5r/yz+YGFQynhTTGHY4JzQGznF5WhdtuoL0Csdh8OJN+NZ9WIwYY8793LO0X 5ENucUHgeXyuRw3EEr0ymE/eS0GrQq91LCRqGgSIcg7ppzBMNNESlIermhNMTKm/xZ6l tAfn7xqzO0oeGGpIzge1/VdqFnw/D4VIsoDFnklA3S1INPpGba+RR42wtiJcWIna5mYn aDOg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=JLEMVH9RTBoP6j0fkKOr1RGoJg5q2GIkRVjMHaZlDpA=; b=m6HKYWjLX6zNMMu6XaLy/GgtAbhIFVgcEy+NA1I/Q1WeoPFM/ntFoM2mq0O9d7DMf3 efKoq4sGG098CNgYG/kc9Gei1wqGWhG1bUYZCEpapd2GiH/u9nckdTbSiLORd9+gv6iG bL30lw6rsavL1YS94Yqtwg9VM5LLSoYRFe8o6e2JIb6S7RhplESTkGDJVhW5acvL6vzn lpbzoGnWL8iwpXGRNUO8ZABLnT7sVSyazULOtgIJaLFIcpOXEUzLTiFdLaM4PCZKfST/ Os0OOEWnf2bG7TK7UozXEk7TTkLIN+G0f6TOrTyVWlGdC74OGyfGZeHpsfkw0/g/B9dV g9pA== X-Gm-Message-State: AO0yUKVEgXNn4tESX5KHVmbBSysri9cMgVXR4y5f8DbvDJVekGixoGg/ UEvh7wBwUlHw7RLmubekKgFJJtaPP/I= X-Google-Smtp-Source: AK7set9Xj6vXWl5+Yxtj/v17hHfzi3+saGMPMBEp6jOVL6xVSl6K3nhe3vhondN5SWkf9xv74HeWbw== X-Received: by 2002:a17:90b:4d0b:b0:22b:efa5:d05 with SMTP id mw11-20020a17090b4d0b00b0022befa50d05mr12918708pjb.40.1677130487074; Wed, 22 Feb 2023 21:34:47 -0800 (PST) Received: from xavier.lan ([2607:fa18:92fe:92b::2a2]) by smtp.gmail.com with ESMTPSA id e13-20020a17090a728d00b00233aacab89esm3943608pjg.48.2023.02.22.21.34.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 22 Feb 2023 21:34:46 -0800 (PST) From: Alex Henrie To: git@vger.kernel.org, tao@klerks.biz, gitster@pobox.com, newren@gmail.com, phillip.wood123@gmail.com, Johannes.Schindelin@gmx.de, sorganov@gmail.com Cc: Alex Henrie Subject: [PATCH v4 3/3] rebase: add a config option for --rebase-merges Date: Wed, 22 Feb 2023 22:34:10 -0700 Message-Id: <20230223053410.644503-3-alexhenrie24@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230223053410.644503-1-alexhenrie24@gmail.com> References: <20230223053410.644503-1-alexhenrie24@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org The purpose of the new option is to accommodate users who would like --rebase-merges to be on by default and to facilitate possibly turning on --rebase-merges by default without configuration in a future version of Git. Signed-off-by: Alex Henrie --- Documentation/config/rebase.txt | 10 ++++ Documentation/git-rebase.txt | 3 +- builtin/rebase.c | 47 ++++++++++++---- t/t3430-rebase-merges.sh | 96 +++++++++++++++++++++++++++++++++ 4 files changed, 144 insertions(+), 12 deletions(-) diff --git a/Documentation/config/rebase.txt b/Documentation/config/rebase.txt index f19bd0e040..308baa9dbb 100644 --- a/Documentation/config/rebase.txt +++ b/Documentation/config/rebase.txt @@ -67,3 +67,13 @@ rebase.rescheduleFailedExec:: rebase.forkPoint:: If set to false set `--no-fork-point` option by default. + +rebase.merges:: + Whether and how to set the `--rebase-merges` option by default. Can + be `rebase-cousins`, `no-rebase-cousins`, or a boolean. Setting to + true is equivalent to `--rebase-merges` without an argument, setting to + `rebase-cousins` or `no-rebase-cousins` is equivalent to + `--rebase-merges` with that value as its argument, and setting to false + is equivalent to `--no-rebase-merges`. Passing `--rebase-merges` on the + command line without an argument overrides a `rebase.merges=false` + configuration but does not override other values of `rebase.merge`. diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt index c98784a0d2..b02f9cbb8c 100644 --- a/Documentation/git-rebase.txt +++ b/Documentation/git-rebase.txt @@ -537,7 +537,8 @@ See also INCOMPATIBLE OPTIONS below. by recreating the merge commits. Any resolved merge conflicts or manual amendments in these merge commits will have to be resolved/re-applied manually. `--no-rebase-merges` can be used to - countermand a previous `--rebase-merges`. + countermand both the `rebase.merges` config option and a previous + `--rebase-merges`. + By default, or when `no-rebase-cousins` was specified, commits which do not have `` as direct ancestor will keep their original branch point, diff --git a/builtin/rebase.c b/builtin/rebase.c index b68fc2fbb7..45cf445d42 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -771,6 +771,20 @@ static int run_specific_rebase(struct rebase_options *opts) return status ? -1 : 0; } +static void parse_merges_value(struct rebase_options *options, const char *value) +{ + if (value) { + if (!strcmp("no-rebase-cousins", value)) + options->rebase_cousins = 0; + else if (!strcmp("rebase-cousins", value)) + options->rebase_cousins = 1; + else + die(_("Unknown mode: %s"), value); + } + + options->rebase_merges = 1; +} + static int rebase_config(const char *var, const char *value, void *data) { struct rebase_options *opts = data; @@ -815,6 +829,13 @@ static int rebase_config(const char *var, const char *value, void *data) return 0; } + if (!strcmp(var, "rebase.merges") && value && *value) { + opts->rebase_merges = git_parse_maybe_bool(value); + if (opts->rebase_merges < 0) + parse_merges_value(opts, value); + return 0; + } + if (!strcmp(var, "rebase.backend")) { return git_config_string(&opts->default_backend, var, value); } @@ -980,6 +1001,18 @@ static int parse_opt_empty(const struct option *opt, const char *arg, int unset) return 0; } +static int parse_opt_merges(const struct option *opt, const char *arg, int unset) +{ + struct rebase_options *options = opt->value; + + if (unset) + options->rebase_merges = 0; + else + parse_merges_value(options, arg); + + return 0; +} + static void NORETURN error_on_missing_default_upstream(void) { struct branch *current_branch = branch_get(NULL); @@ -1035,7 +1068,6 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) struct object_id branch_base; int ignore_whitespace = 0; const char *gpg_sign = NULL; - const char *rebase_merges = NULL; struct string_list strategy_options = STRING_LIST_INIT_NODUP; struct object_id squash_onto; char *squash_onto_name = NULL; @@ -1137,10 +1169,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) &options.allow_empty_message, N_("allow rebasing commits with empty messages"), PARSE_OPT_HIDDEN), - {OPTION_STRING, 'r', "rebase-merges", &rebase_merges, - N_("mode"), + OPT_CALLBACK_F('r', "rebase-merges", &options, N_("mode"), N_("try to rebase merges instead of skipping them"), - PARSE_OPT_OPTARG, NULL, (intptr_t)"no-rebase-cousins"}, + PARSE_OPT_OPTARG, parse_opt_merges), OPT_BOOL(0, "fork-point", &options.fork_point, N_("use 'merge-base --fork-point' to refine upstream")), OPT_STRING('s', "strategy", &options.strategy, @@ -1436,14 +1467,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) if (options.exec.nr) imply_merge(&options, "--exec"); - if (rebase_merges) { - if (!strcmp("rebase-cousins", rebase_merges)) - options.rebase_cousins = 1; - else if (strcmp("no-rebase-cousins", rebase_merges)) - die(_("Unknown mode: %s"), rebase_merges); - options.rebase_merges = 1; + if (options.rebase_merges) imply_merge(&options, "--rebase-merges"); - } if (options.type == REBASE_APPLY) { if (ignore_whitespace) diff --git a/t/t3430-rebase-merges.sh b/t/t3430-rebase-merges.sh index c73949df18..d4b0e8fd49 100755 --- a/t/t3430-rebase-merges.sh +++ b/t/t3430-rebase-merges.sh @@ -284,6 +284,102 @@ test_expect_success '--rebase-merges="" is invalid syntax' ' test_cmp expect actual ' +test_expect_success 'rebase.merges="" is equivalent to not passing --rebase-merges' ' + test_config rebase.merges "" && + git checkout -b config-merges-blank E && + git rebase C && + test_cmp_graph C.. <<-\EOF + * B + * D + o C + EOF +' + +test_expect_success 'rebase.merges=rebase-cousins is equivalent to --rebase-merges=rebase-cousins' ' + test_config rebase.merges rebase-cousins && + git checkout -b config-rebase-cousins main && + git rebase HEAD^ && + test_cmp_graph HEAD^.. <<-\EOF + * Merge the topic branch '\''onebranch'\'' + |\ + | * D + | * G + |/ + o H + EOF +' + +test_expect_success '--no-rebase-merges overrides rebase.merges=no-rebase-cousins' ' + test_config rebase.merges no-rebase-cousins && + git checkout -b override-config-no-rebase-cousins E && + git rebase --no-rebase-merges C && + test_cmp_graph C.. <<-\EOF + * B + * D + o C + EOF +' + +test_expect_success '--rebase-merges=no-rebase-cousins overrides rebase.merges=rebase-cousins' ' + test_config rebase.merges rebase-cousins && + git checkout -b override-config-rebase-cousins main && + git rebase --rebase-merges=no-rebase-cousins HEAD^ && + test_cmp_graph HEAD^.. <<-\EOF + * Merge the topic branch '\''onebranch'\'' + |\ + | * D + | * G + o | H + |/ + o A + EOF +' + +test_expect_success '--rebase-merges overrides rebase.merges=false' ' + test_config rebase.merges false && + git checkout -b override-config-merges-false E && + before="$(git rev-parse --verify HEAD)" && + test_tick && + git rebase --rebase-merges C && + test_cmp_rev HEAD $before +' + +test_expect_success '--rebase-merges does not override rebase.merges=rebase-cousins' ' + test_config rebase.merges rebase-cousins && + git checkout -b no-override-config-rebase-cousins main && + git rebase --rebase-merges HEAD^ && + test_cmp_graph HEAD^.. <<-\EOF + * Merge the topic branch '\''onebranch'\'' + |\ + | * D + | * G + |/ + o H + EOF +' + +test_expect_success 'local rebase.merges=false overrides global rebase.merges=true' ' + test_config_global rebase.merges true && + test_config rebase.merges false && + git checkout -b override-global-config E && + git rebase C && + test_cmp_graph C.. <<-\EOF + * B + * D + o C + EOF +' + +test_expect_success 'local rebase.merges="" does not override global rebase.merges=true' ' + test_config_global rebase.merges no-rebase-cousins && + test_config rebase.merges "" && + git checkout -b no-override-global-config E && + before="$(git rev-parse --verify HEAD)" && + test_tick && + git rebase C && + test_cmp_rev HEAD $before +' + test_expect_success 'refs/rewritten/* is worktree-local' ' git worktree add wt && cat >wt/script-from-scratch <<-\EOF &&