From patchwork Sat Jun 19 00:31:16 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Emily Shaffer X-Patchwork-Id: 12332477 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 286E2C49EA3 for ; Sat, 19 Jun 2021 00:32:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0FC0F613BD for ; Sat, 19 Jun 2021 00:32:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234186AbhFSAdh (ORCPT ); Fri, 18 Jun 2021 20:33:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39802 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232558AbhFSAdg (ORCPT ); Fri, 18 Jun 2021 20:33:36 -0400 Received: from mail-qt1-x849.google.com (mail-qt1-x849.google.com [IPv6:2607:f8b0:4864:20::849]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5E34DC06175F for ; Fri, 18 Jun 2021 17:31:24 -0700 (PDT) Received: by mail-qt1-x849.google.com with SMTP id r1-20020ac85c810000b02901fa9798cdb5so8856439qta.8 for ; Fri, 18 Jun 2021 17:31:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=FD5hcH6TGsKG1jGfaoqsS6DaiS/WNMR5Nj45sxbaHSE=; b=tH2nP0bdTSRdMQc2278lvbAp/ayo5cYjoHCjGJFggcrVdJaeFM161PnQviDM/HfePT Vidn1deJyY7o/3RZvWbeo30/9vY4wu5GyqpP2PMf0EheOv9mcp3LWT7SXXcUcfLPsKwh w29eVjpm/4/tVdMr4X+E5nea2W4lheJKQKoOpaGxXiORUbBTQJb8oF0GPG4Z9+jN9AVk nPY1yMiHtq6wNGiD9hEZ2DhR3hH8UMRTr8LVYKnRXiyhP6z4EYfH8AAr5BrAzuUBEpcq LMU9ob4QdpAIYGzVDWbYXAK+eeP0cdyp/LAYQKP8IsnRuHgNpHEEAkjwXIOnvmlqsb7o +IIA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=FD5hcH6TGsKG1jGfaoqsS6DaiS/WNMR5Nj45sxbaHSE=; b=DjI+CeMSEDnvd+Z8itUdcuzPGnImssl3LnWYyPS3DdSKQYGSQccLSDBPfUoKZ404TO TtHlCAOL7rJp1DPNlY9BwRhEzncjUnZWPNBkEItKdXx2YyOTmeTGcniu7MW3/kdGAC8l Is3FN2YOLSYZ9A57ANOA/q2h6Ed6Pr5vW7XSbdptio8GCqAQ4GeRHJ9Guu1HykG8o/Vu qhtoPtrbHP2QhynZbe+a4R/fxNkh865n5HQl6ptw+No6tWSx6/iAInpv52Pj3RHL2e9p rzH1VCVRHBmC9GWlDFhu+NnGhxgrocda3eYbPSJQKoGA8mmvyaU79jdgfI1kGWJsqdKW H/lA== X-Gm-Message-State: AOAM532alafFnx6P9jdjTJy+izW2DimdGHhDAmwDlYDzE/XffoH9wDym 7iLGi0bzsCg9aLr12mmbfiXL96Hi9YeXJleHN53e+qXio6QcEhOS5ISAQeS2nosFK6dzxSkzYDH Y2N8MjXq/lYQp8mIJ6TUet+n1JUB2UErNodEEm1N4ZFzCxhXUqmEQwBea+i6NaL27wFFRx2mpUg == X-Google-Smtp-Source: ABdhPJwo86avQyP29adO9ZSfehxyzWauVDO3kyxumP9vBanEBJTTAScCwxiHuAaq0x6MZKDU3Punr4xRjCVJUNoliGc= X-Received: from podkayne.svl.corp.google.com ([2620:15c:2ce:200:551d:e7ea:4a2f:6667]) (user=emilyshaffer job=sendgmr) by 2002:a25:888e:: with SMTP id d14mr16019401ybl.443.1624062683386; Fri, 18 Jun 2021 17:31:23 -0700 (PDT) Date: Fri, 18 Jun 2021 17:31:16 -0700 In-Reply-To: <20210619003118.1352300-1-emilyshaffer@google.com> Message-Id: <20210619003118.1352300-2-emilyshaffer@google.com> Mime-Version: 1.0 References: <20210619003118.1352300-1-emilyshaffer@google.com> X-Mailer: git-send-email 2.32.0.288.g62a8d224e6-goog Subject: [PATCH v3 1/2] config: rename "submodule" scope to "gitmodules" From: Emily Shaffer To: git@vger.kernel.org Cc: Emily Shaffer Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org To prepare for the addition of a new config scope which only applies to submodule projects, disambiguate "CONFIG_SCOPE_SUBMODULES". This scope refers to configs gathered from the .gitmodules file in the superproject, so just call it "gitmodules." Signed-off-by: Emily Shaffer --- config.c | 4 ++-- config.h | 2 +- submodule-config.c | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/config.c b/config.c index f9c400ad30..a5fc4cacd5 100644 --- a/config.c +++ b/config.c @@ -3516,8 +3516,8 @@ const char *config_scope_name(enum config_scope scope) return "worktree"; case CONFIG_SCOPE_COMMAND: return "command"; - case CONFIG_SCOPE_SUBMODULE: - return "submodule"; + case CONFIG_SCOPE_GITMODULES: + return "gitmodules"; default: return "unknown"; } diff --git a/config.h b/config.h index 9038538ffd..5faa72f3f5 100644 --- a/config.h +++ b/config.h @@ -42,7 +42,7 @@ enum config_scope { CONFIG_SCOPE_LOCAL, CONFIG_SCOPE_WORKTREE, CONFIG_SCOPE_COMMAND, - CONFIG_SCOPE_SUBMODULE, + CONFIG_SCOPE_GITMODULES, }; const char *config_scope_name(enum config_scope scope); diff --git a/submodule-config.c b/submodule-config.c index 2026120fb3..ed8e671d17 100644 --- a/submodule-config.c +++ b/submodule-config.c @@ -637,7 +637,7 @@ static void config_from_gitmodules(config_fn_t fn, struct repository *repo, void { if (repo->worktree) { struct git_config_source config_source = { - 0, .scope = CONFIG_SCOPE_SUBMODULE + 0, .scope = CONFIG_SCOPE_GITMODULES }; const struct config_options opts = { 0 }; struct object_id oid; From patchwork Sat Jun 19 00:31:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Emily Shaffer X-Patchwork-Id: 12332481 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 446AEC49EA2 for ; Sat, 19 Jun 2021 00:32:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1DCF161284 for ; Sat, 19 Jun 2021 00:32:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234243AbhFSAdk (ORCPT ); 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Fri, 18 Jun 2021 17:31:25 -0700 (PDT) Date: Fri, 18 Jun 2021 17:31:17 -0700 In-Reply-To: <20210619003118.1352300-1-emilyshaffer@google.com> Message-Id: <20210619003118.1352300-3-emilyshaffer@google.com> Mime-Version: 1.0 References: <20210619003118.1352300-1-emilyshaffer@google.com> X-Mailer: git-send-email 2.32.0.288.g62a8d224e6-goog Subject: [PATCH v3 2/2] config: add 'config.superproject' file From: Emily Shaffer To: git@vger.kernel.org Cc: Emily Shaffer Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Some configs, such as wrapper directives like gerrit.createChangeId, or forthcoming hook configs, should apply to a superproject as well as all its submodules. It may not be appropriate to apply them globally - for example, if the user also contributes to many projects which do not use the configs necessary for one project-with-submodules - and it may be burdensome to apply them locally to the superproject and each of its submodules. Even if the user runs 'git submodule foreach "git config --local foo.bar', if a new submodule is added later on, that config is not applied to the new submodule. It is also inappropriate to share the entire superproject config, since some items - like remote URLs or partial-clone filters - would not apply to a submodule. To make life easier for projects with many submodules, then, create a new "config.superproject" config scope, which is included in the config parse for the superproject as well as for all the submodules of that superproject. For the superproject, this new config file is equally local to the local config; for the submodule, the new config file is less local than the local config. So let's include it directly before the local config during the config parse. Signed-off-by: Emily Shaffer --- Notes: Since v1: - Used test_when_finished liberally in tests instead of bare cleanup steps - Fixed some nits regarding xstrdup instead of strbuf_detach. One thing that I thought about but did not implement: rather than finding the path to the superproject's gitdir, you could imagine gathering the config by making a call out to 'git -C ../ config' - but on second thought, it seems like that will make it harder to edit. However, if we don't want to be able to edit superproject config from a submodule, that might be okay... (This approach could make 'git config --show-origin' harder to implement, though, I think.) So I did not make any changes about that. Documentation/git-config.txt | 21 +++++- builtin/config.c | 9 ++- config.c | 28 ++++++++ config.h | 3 + t/t1311-superproject-config.sh | 116 +++++++++++++++++++++++++++++++++ 5 files changed, 174 insertions(+), 3 deletions(-) create mode 100755 t/t1311-superproject-config.sh diff --git a/Documentation/git-config.txt b/Documentation/git-config.txt index 5cddadafd2..312deea21d 100644 --- a/Documentation/git-config.txt +++ b/Documentation/git-config.txt @@ -48,7 +48,7 @@ unset an existing `--type` specifier with `--no-type`. When reading, the values are read from the system, global and repository local configuration files by default, and options -`--system`, `--global`, `--local`, `--worktree` and +`--system`, `--global`, `--superproject`, `--local`, `--worktree` and `--file ` can be used to tell the command to read from only that location (see <>). @@ -127,6 +127,17 @@ rather than from all available files. + See also <>. +--superproject:: + For writing options: write to the superproject's + `.git/config.superproject` file, even if run from a submodule of that + superproject. ++ +For reading options: read only from the superproject's +`.git/config.superproject` file, even if run from a submodule of that +superproject, rather than from all available files. ++ +See also <>. + --local:: For writing options: write to the repository `.git/config` file. This is the default behavior. @@ -283,7 +294,7 @@ The default is to use a pager. FILES ----- -If not set explicitly with `--file`, there are four files where +If not set explicitly with `--file`, there are five files where 'git config' will search for configuration options: $(prefix)/etc/gitconfig:: @@ -301,6 +312,12 @@ $XDG_CONFIG_HOME/git/config:: User-specific configuration file. Also called "global" configuration file. +$GIT_DIR/config.superproject:: + When `git config` is run from a project which is a submodule of another + project, that superproject's $GIT_DIR will be used. Use this config file + to set configurations which need to be the same across a superproject + and all its submodules. + $GIT_DIR/config:: Repository specific configuration file. diff --git a/builtin/config.c b/builtin/config.c index 865fddd6ce..83376e0916 100644 --- a/builtin/config.c +++ b/builtin/config.c @@ -26,7 +26,7 @@ static char key_delim = ' '; static char term = '\n'; static int use_global_config, use_system_config, use_local_config; -static int use_worktree_config; +static int use_worktree_config, use_superproject_config; static struct git_config_source given_config_source; static int actions, type; static char *default_value; @@ -130,6 +130,8 @@ static struct option builtin_config_options[] = { OPT_GROUP(N_("Config file location")), OPT_BOOL(0, "global", &use_global_config, N_("use global config file")), OPT_BOOL(0, "system", &use_system_config, N_("use system config file")), + OPT_BOOL(0, "superproject", + &use_superproject_config, N_("use superproject config file")), OPT_BOOL(0, "local", &use_local_config, N_("use repository config file")), OPT_BOOL(0, "worktree", &use_worktree_config, N_("use per-worktree config file")), OPT_STRING('f', "file", &given_config_source.file, N_("file"), N_("use given config file")), @@ -697,6 +699,11 @@ int cmd_config(int argc, const char **argv, const char *prefix) else if (use_system_config) { given_config_source.file = git_system_config(); given_config_source.scope = CONFIG_SCOPE_SYSTEM; + } else if (use_superproject_config) { + struct strbuf superproject_cfg = STRBUF_INIT; + git_config_superproject(&superproject_cfg, get_git_dir()); + given_config_source.file = strbuf_detach(&superproject_cfg, NULL); + given_config_source.scope = CONFIG_SCOPE_SUPERPROJECT; } else if (use_local_config) { given_config_source.file = git_pathdup("config"); given_config_source.scope = CONFIG_SCOPE_LOCAL; diff --git a/config.c b/config.c index a5fc4cacd5..97d63a825c 100644 --- a/config.c +++ b/config.c @@ -21,6 +21,7 @@ #include "dir.h" #include "color.h" #include "refs.h" +#include "submodule.h" struct config_source { struct config_source *prev; @@ -1852,6 +1853,19 @@ void git_global_config(char **user_out, char **xdg_out) *xdg_out = xdg_config; } +void git_config_superproject(struct strbuf *sb, const char *gitdir) +{ + const char *sp_gitdir; + if (git_config_get_string_tmp("submodule.superprojectGitDir", &sp_gitdir)) + /* probably not a submodule */ + strbuf_addstr(sb, gitdir); + else + /* definitely a submodule */ + strbuf_addstr(sb, sp_gitdir); + + strbuf_addstr(sb, "/config.superproject"); +} + /* * Parse environment variable 'k' as a boolean (in various * possible spellings); if missing, use the default value 'def'. @@ -1911,6 +1925,17 @@ static int do_git_config_sequence(const struct config_options *opts, if (user_config && !access_or_die(user_config, R_OK, ACCESS_EACCES_OK)) ret += git_config_from_file(fn, user_config, data); + current_parsing_scope = CONFIG_SCOPE_SUPERPROJECT; + if (opts->git_dir && !opts->ignore_superproject) { + + struct strbuf superproject_gitdir = STRBUF_INIT; + git_config_superproject(&superproject_gitdir, opts->git_dir); + if (!access_or_die(superproject_gitdir.buf, R_OK, 0)) + ret += git_config_from_file(fn, superproject_gitdir.buf, data); + + strbuf_release(&superproject_gitdir); + } + current_parsing_scope = CONFIG_SCOPE_LOCAL; if (!opts->ignore_repo && repo_config && !access_or_die(repo_config, R_OK, 0)) @@ -2030,6 +2055,7 @@ void read_very_early_config(config_fn_t cb, void *data) opts.respect_includes = 1; opts.ignore_repo = 1; + opts.ignore_superproject = 1; opts.ignore_worktree = 1; opts.ignore_cmdline = 1; opts.system_gently = 1; @@ -3518,6 +3544,8 @@ const char *config_scope_name(enum config_scope scope) return "command"; case CONFIG_SCOPE_GITMODULES: return "gitmodules"; + case CONFIG_SCOPE_SUPERPROJECT: + return "superproject"; default: return "unknown"; } diff --git a/config.h b/config.h index 5faa72f3f5..69d7e4cb72 100644 --- a/config.h +++ b/config.h @@ -43,6 +43,7 @@ enum config_scope { CONFIG_SCOPE_WORKTREE, CONFIG_SCOPE_COMMAND, CONFIG_SCOPE_GITMODULES, + CONFIG_SCOPE_SUPERPROJECT, }; const char *config_scope_name(enum config_scope scope); @@ -84,6 +85,7 @@ typedef int (*config_parser_event_fn_t)(enum config_event_t type, struct config_options { unsigned int respect_includes : 1; unsigned int ignore_repo : 1; + unsigned int ignore_superproject : 1; unsigned int ignore_worktree : 1; unsigned int ignore_cmdline : 1; unsigned int system_gently : 1; @@ -318,6 +320,7 @@ int git_config_rename_section(const char *, const char *); int git_config_rename_section_in_file(const char *, const char *, const char *); int git_config_copy_section(const char *, const char *); int git_config_copy_section_in_file(const char *, const char *, const char *); +void git_config_superproject(struct strbuf *, const char *); int git_env_bool(const char *, int); unsigned long git_env_ulong(const char *, unsigned long); int git_config_system(void); diff --git a/t/t1311-superproject-config.sh b/t/t1311-superproject-config.sh new file mode 100755 index 0000000000..74b6ca2cac --- /dev/null +++ b/t/t1311-superproject-config.sh @@ -0,0 +1,116 @@ +#!/bin/sh + +test_description='Test git config --superproject in different settings' + +. ./test-lib.sh + +# follow t7400's example and use the trash dir repo as a submodule to add +submodurl=$(pwd -P) + +# since only the configs are modified, set up the repo structure only once +test_expect_success 'setup repo structure' ' + test_commit "base" && + git submodule add "${submodurl}" sub/ && + git commit -m "add a submodule" +' + +test_expect_success 'superproject config applies to super and submodule' ' + cat >.git/config.superproject <<-EOF && + [foo] + bar = baz + EOF + test_when_finished rm .git/config.superproject && + + git config --get foo.bar && + git -C sub config --get foo.bar + +' + +test_expect_success 'can add from super or sub' ' + git config --superproject apple.species honeycrisp && + git -C sub config --superproject banana.species cavendish && + test_when_finished rm .git/config.superproject && + + cat >expect <<-EOF && + apple.species=honeycrisp + banana.species=cavendish + EOF + + git config --list >actual && + grep -Ff expect actual && + + git -C sub config --list >actual && + grep -Ff expect actual +' + +test_expect_success 'can --unset from super or sub' ' + git config --superproject apple.species honeycrisp && + git -C sub config --superproject banana.species cavendish && + test_when_finished rm .git/config.superproject && + + git config --unset --superproject banana.species && + git -C sub config --unset --superproject apple.species +' + +test_expect_success 'can --edit superproject config' ' + test_config core.editor "echo [foo]bar=baz >" && + git config --edit --superproject && + test_when_finished rm .git/config.superproject && + + git config --get foo.bar +' + +test_expect_success 'can --show-origin the superproject config' ' + git config --superproject --add foo.bar baz && + test_when_finished rm .git/config.superproject && + + git config --list --show-origin >actual && + grep -F "config.superproject" actual +' + +test_expect_success 'can --show-scope the superproject config' ' + git config --superproject --add foo.bar baz && + test_when_finished rm .git/config.superproject && + + git config --list --show-scope >actual && + grep "superproject" actual +' + +test_expect_success 'pre-existing config applies to new submodule' ' + git config --superproject --add foo.bar baz && + test_when_finished rm .git/config.superproject && + + git submodule add "${submodurl}" sub2/ && + test_when_finished rm -fr sub2 && + git commit -m "add a second submodule" && + test_when_finished git reset HEAD^ && + + git -C sub2 config --get foo.bar +' + +# NEEDSWORK: submodule.c:get_superproject_working_tree doesn't support worktree +test_expect_failure 'worktrees can still access config.superproject' ' + git config --superproject --add foo.bar baz && + test_when_finished rm .git/config.superproject && + + git worktree add wt && + test_when_finished git worktree remove wt && + ( + cd wt && + git config --get foo.bar + ) +' + +# This test deletes the submodule! Keep it at the end of the test suite. +test_expect_success 'config.superproject works even with no submodules' ' + # get rid of the submodule + git reset HEAD^ && + rm -fr sub && + + git config --superproject --add foo.bar baz && + test_when_finished rm .git/config.superproject && + + git config --get foo.bar +' + +test_done