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From: "Don Goodman-Wilson via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: don@goodman-wilson.com, stolee@gmail.com, peff@peff.net,
	sandals@crustytoothpaste.net, Matt Rogers <mattr94@gmail.com>,
	Eric Sunshine <sunshine@sunshineco.com>,
	Taylor Blau <me@ttaylorr.com>,
	Phillip Wood <phillip.wood123@gmail.com>,
	Alban Gruin <alban.gruin@gmail.com>, Johannes Sixt <j6t@kdbg.org>,
	Johannes Schindelin <johannes.schindelin@gmx.de>,
	Don Goodman-Wilson <don@goodman-wilson.com>
Subject: [PATCH v2 08/12] init: allow overriding the default main branch name via the config
Date: Mon, 15 Jun 2020 12:50:12 +0000	[thread overview]
Message-ID: <c711eba7e760b4f80ab8ef69ed1d69d9710d85c7.1592225416.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.656.v2.git.1592225416.gitgitgadget@gmail.com>

From: Don Goodman-Wilson <don@goodman-wilson.com>

We just introduced the command-line option `--main-branch=<branch-name>`
to allow initializing a new repository with a different initial branch
than the hard-coded one.

To allow users to override the default main branch name more permanently
(i.e. without having to specify the name manually for each and every
`git init` invocation), let's introduce the `init.defaultBranch` config
setting.

Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Helped-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Don Goodman-Wilson <don@goodman-wilson.com>
---
 Documentation/config/init.txt |  4 ++++
 builtin/init-db.c             |  6 ++++--
 refs.c                        |  7 +++++--
 refs.h                        |  4 ++++
 t/t0001-init.sh               | 16 ++++++++++++++++
 5 files changed, 33 insertions(+), 4 deletions(-)

diff --git a/Documentation/config/init.txt b/Documentation/config/init.txt
index 46fa8c6a082..6ae4a38416e 100644
--- a/Documentation/config/init.txt
+++ b/Documentation/config/init.txt
@@ -1,3 +1,7 @@
 init.templateDir::
 	Specify the directory from which templates will be copied.
 	(See the "TEMPLATE DIRECTORY" section of linkgit:git-init[1].)
+
+init.defaultBranch::
+	Allows overriding the default branch name when initializing
+	a new repository.
diff --git a/builtin/init-db.c b/builtin/init-db.c
index 287cdafaab1..d09c9dc7845 100644
--- a/builtin/init-db.c
+++ b/builtin/init-db.c
@@ -266,10 +266,11 @@ static int create_default_files(const char *template_path,
 	reinit = (!access(path, R_OK)
 		  || readlink(path, junk, sizeof(junk)-1) != -1);
 	if (!reinit) {
-		char *ref;
+		char *ref, *fall_back = NULL;
 
 		if (!main_branch)
-			main_branch = "master";
+			main_branch = fall_back =
+				git_main_branch_name(MAIN_BRANCH_FOR_INIT);
 
 		ref = xstrfmt("refs/heads/%s", main_branch);
 		if (check_refname_format(ref, 0) < 0)
@@ -280,6 +281,7 @@ static int create_default_files(const char *template_path,
 		free(ref);
 
 		git_config_set("core.mainbranch", main_branch);
+		free(fall_back);
 	} else if (main_branch)
 		warning(_("re-init: ignoring --main-branch=%s"), main_branch);
 
diff --git a/refs.c b/refs.c
index 7da3ac178c4..4b0e5b14062 100644
--- a/refs.c
+++ b/refs.c
@@ -563,8 +563,11 @@ void expand_ref_prefix(struct argv_array *prefixes, const char *prefix)
 char *repo_main_branch_name(struct repository *r, int flags)
 {
 	int full_name = flags & MAIN_BRANCH_FULL_NAME;
-	const char *config_key = "core.mainbranch";
-	const char *config_display_key = "core.mainBranch";
+	int for_init = flags & MAIN_BRANCH_FOR_INIT;
+	const char *config_key = for_init ?
+		 "init.defaultbranch" : "core.mainbranch";
+	const char *config_display_key = for_init ?
+		 "init.defaultBranch" : "core.mainBranch";
 	const char *fall_back = "master";
 	char *name = NULL, *ret;
 
diff --git a/refs.h b/refs.h
index 96472f9a9f5..c801d08490c 100644
--- a/refs.h
+++ b/refs.h
@@ -158,10 +158,14 @@ int dwim_log(const char *str, int len, struct object_id *oid, char **ref);
  * Retrieves the name of the main (or: primary) branch of the given
  * repository.
  *
+ * To obtain the default for newly-initialized repositories, pass the flag
+ * `MAIN_BRANCH_FOR_INIT`.
+ *
  * The result is an allocated string. Unless the flags ask for a short name, it
  * will be prefixed with "refs/heads/".
  */
 #define MAIN_BRANCH_FULL_NAME (1<<0)
+#define MAIN_BRANCH_FOR_INIT   (1<<1)
 char *git_main_branch_name(int flags);
 char *repo_main_branch_name(struct repository *r, int flags);
 
diff --git a/t/t0001-init.sh b/t/t0001-init.sh
index 5d8e321a703..fbf02066940 100755
--- a/t/t0001-init.sh
+++ b/t/t0001-init.sh
@@ -479,4 +479,20 @@ test_expect_success '--main-branch' '
 	grep hello actual
 '
 
+test_expect_success 'overridden default main branch name (config)' '
+	test_config_global init.defaultBranch nmb &&
+	git init main-branch-config &&
+	git -C main-branch-config symbolic-ref HEAD >actual &&
+	grep nmb actual &&
+	git -C main-branch-config config core.mainBranch >actual &&
+	echo nmb >expect &&
+	test_cmp expect actual
+'
+
+test_expect_success 'invalid default branch name' '
+	test_config_global init.defaultBranch "with space" &&
+	test_must_fail git init main-branch-invalid 2>err &&
+	test_i18ngrep "invalid branch name" err
+'
+
 test_done
-- 
gitgitgadget


  parent reply	other threads:[~2020-06-15 12:50 UTC|newest]

Thread overview: 180+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-10 21:19 [PATCH 0/9] Allow overriding the default name of the default branch Johannes Schindelin via GitGitGadget
2020-06-10 21:19 ` [PATCH 1/9] init: allow overriding the default branch name for new repositories Don Goodman-Wilson via GitGitGadget
2020-06-10 23:22   ` brian m. carlson
2020-06-11  0:16   ` Eric Sunshine
2020-06-11 14:09     ` Johannes Schindelin
2020-06-11 15:28       ` Junio C Hamano
2020-06-16 12:45     ` Jeff King
2020-06-16 12:47       ` Jeff King
2020-06-18 13:08         ` Johannes Schindelin
2020-06-23 20:32       ` Johannes Schindelin
2020-06-11  9:35   ` Phillip Wood
2020-06-12 11:55     ` Johannes Schindelin
2020-06-12 16:51       ` Junio C Hamano
2020-06-14 22:00         ` Johannes Schindelin
2020-06-15 10:00         ` Phillip Wood
2020-06-11 10:23   ` Alban Gruin
2020-06-11 23:14     ` Junio C Hamano
2020-06-11 23:46       ` brian m. carlson
2020-06-12 12:45         ` Johannes Schindelin
2020-06-13 18:01       ` Alban Gruin
2020-06-14  8:57         ` Johannes Schindelin
2020-06-16 12:25           ` Jeff King
2020-06-18 10:17             ` Johannes Schindelin
2020-06-10 21:19 ` [PATCH 2/9] remote: respect `core.defaultBranchName` Johannes Schindelin via GitGitGadget
2020-06-16 12:35   ` Jeff King
2020-06-18 10:21     ` Johannes Schindelin
2020-06-18 11:50       ` Jeff King
2020-06-23 21:15         ` Johannes Schindelin
2020-06-10 21:19 ` [PATCH 3/9] send-pack/transport-helper: " Johannes Schindelin via GitGitGadget
2020-06-10 21:19 ` [PATCH 4/9] testsvn: " Johannes Schindelin via GitGitGadget
2020-06-10 21:19 ` [PATCH 5/9] submodule: use the (possibly overridden) default branch name Johannes Schindelin via GitGitGadget
2020-06-15 10:46   ` Denton Liu
2020-06-10 21:19 ` [PATCH 6/9] clone: learn about the possibly-configured " Johannes Schindelin via GitGitGadget
2020-06-10 22:58   ` Junio C Hamano
2020-06-10 21:19 ` [PATCH 7/9] fmt-merge-msg: " Johannes Schindelin via GitGitGadget
2020-06-10 22:59   ` Junio C Hamano
2020-06-10 21:19 ` [PATCH 8/9] fast-export: respect the possibly-overridden " Johannes Schindelin via GitGitGadget
2020-06-10 21:54   ` Matt Rogers
2020-06-10 23:25     ` Junio C Hamano
2020-06-10 23:39     ` brian m. carlson
2020-06-11  0:20       ` Matt Rogers
2020-06-11  5:26         ` Junio C Hamano
2020-06-11 14:05           ` Johannes Schindelin
2020-06-11 15:05             ` Re* " Junio C Hamano
2020-06-11 16:44               ` Junio C Hamano
2020-06-11 18:18                 ` Junio C Hamano
2020-06-12 12:07                   ` Johannes Schindelin
2020-06-12 12:32                     ` Junio C Hamano
2020-06-12 12:03               ` Johannes Schindelin
2020-06-12 12:50                 ` Junio C Hamano
2020-06-12 12:53               ` Johannes Schindelin
2020-06-12 13:18                 ` Johannes Schindelin
2020-06-12 15:19                   ` Junio C Hamano
2020-06-12 15:22                     ` Junio C Hamano
2020-06-13  5:00                       ` Johannes Schindelin
2020-06-12 15:14                 ` Junio C Hamano
2020-06-13 11:49                   ` Johannes Sixt
2020-06-13 16:25                     ` Junio C Hamano
2020-06-13 14:47                       ` Johannes Schindelin
2020-06-13 18:49                         ` Junio C Hamano
2020-06-14  8:55                           ` Johannes Schindelin
2020-06-17 20:06                             ` Junio C Hamano
2020-06-23 21:11                               ` Johannes Schindelin
2020-06-23 21:32                                 ` Junio C Hamano
2020-06-13 14:44                   ` Johannes Schindelin
2020-06-11 13:57     ` Johannes Schindelin
2020-06-11 18:19       ` Junio C Hamano
2020-06-12 12:07         ` Johannes Schindelin
2020-06-10 21:19 ` [PATCH 9/9] Document how the default branch name can be overridden Johannes Schindelin via GitGitGadget
2020-06-11  0:18   ` Junio C Hamano
2020-06-10 23:11 ` [PATCH 0/9] Allow overriding the default name of the default branch Junio C Hamano
2020-06-11  5:42   ` Junio C Hamano
2020-06-11 13:44   ` Johannes Schindelin
2020-06-11 14:44     ` Junio C Hamano
2020-06-10 23:41 ` brian m. carlson
2020-06-11  1:07 ` Taylor Blau
2020-06-11 14:33   ` Johannes Schindelin
2020-06-15 10:03 ` Pratyush Yadav
2020-06-14 22:26   ` Johannes Schindelin
2020-06-16  0:19     ` Denton Liu
2020-06-23 20:10       ` Johannes Schindelin
2020-06-15 23:10   ` brian m. carlson
2020-06-15 12:50 ` [PATCH v2 00/12] " Johannes Schindelin via GitGitGadget
2020-06-15 12:50   ` [PATCH v2 01/12] fast-export: do anonymize the primary branch name Junio C Hamano via GitGitGadget
2020-06-16 12:58     ` Jeff King
2020-06-17 18:16       ` Junio C Hamano
2020-06-17 21:23         ` Jeff King
2020-06-18  2:06           ` Elijah Newren
2020-06-18  6:30             ` Junio C Hamano
2020-06-18  7:13               ` Elijah Newren
2020-06-18 11:45             ` Jeff King
2020-06-15 12:50   ` [PATCH v2 02/12] fmt-merge-msg: introduce a way to override the main " Johannes Schindelin via GitGitGadget
2020-06-15 15:00     ` Phillip Wood
2020-06-23 12:31       ` Johannes Schindelin
2020-06-15 17:05     ` Junio C Hamano
2020-06-23 19:19       ` Johannes Schindelin
2020-06-16  8:46     ` Ævar Arnfjörð Bjarmason
2020-06-17 18:21       ` Junio C Hamano
2020-06-16 13:04     ` Jeff King
2020-06-17 18:23       ` Junio C Hamano
2020-06-18 13:15         ` Johannes Schindelin
2020-06-17 20:56     ` Johannes Sixt
2020-06-17 21:16       ` Junio C Hamano
2020-06-23 21:12         ` Johannes Schindelin
2020-06-15 12:50   ` [PATCH v2 03/12] send-pack/transport-helper: respect `core.mainBranch` Johannes Schindelin via GitGitGadget
2020-06-15 12:50   ` [PATCH v2 04/12] git_main_branch_name(): optionally report the full ref name Johannes Schindelin via GitGitGadget
2020-06-15 15:04     ` Phillip Wood
2020-06-23 19:17       ` Johannes Schindelin
2020-06-15 12:50   ` [PATCH v2 05/12] fast-export: handle overridden main branch names correctly Johannes Schindelin via GitGitGadget
2020-06-15 15:05     ` Phillip Wood
2020-06-16 13:10       ` Jeff King
2020-06-16 15:49         ` Phillip Wood
2020-06-18 10:08         ` Johannes Schindelin
2020-06-15 17:09     ` Junio C Hamano
2020-06-23 19:22       ` Johannes Schindelin
2020-06-15 12:50   ` [PATCH v2 06/12] branch -m: adjust `core.mainBranch` if necessary Johannes Schindelin via GitGitGadget
2020-06-15 12:50   ` [PATCH v2 07/12] init: allow specifying the main branch name for the new repository Johannes Schindelin via GitGitGadget
2020-06-15 12:50   ` Don Goodman-Wilson via GitGitGadget [this message]
2020-06-15 12:50   ` [PATCH v2 09/12] clone: handle overridden main branch names Johannes Schindelin via GitGitGadget
2020-06-16 13:22     ` Jeff King
2020-06-23 20:58       ` Johannes Schindelin
2020-06-15 12:50   ` [PATCH v2 10/12] remote: learn about the possibly-overridden default main branch name Johannes Schindelin via GitGitGadget
2020-06-15 12:50   ` [PATCH v2 11/12] submodule: use the correct default for the " Johannes Schindelin via GitGitGadget
2020-06-16 13:46     ` Jeff King
2020-06-23 21:03       ` Johannes Schindelin
2020-06-23 21:14         ` Jeff King
2020-06-15 12:50   ` [PATCH v2 12/12] testsvn: respect `init.defaultBranch` Johannes Schindelin via GitGitGadget
2020-06-16 13:51     ` Jeff King
2020-06-23 21:07       ` Johannes Schindelin
2020-06-23 22:33   ` [PATCH v3 0/8] Allow overriding the default name of the default branch Johannes Schindelin via GitGitGadget
2020-06-23 22:33     ` [PATCH v3 1/8] fmt-merge-msg: stop treating `master` specially Johannes Schindelin via GitGitGadget
2020-06-24 16:16       ` Junio C Hamano
2020-06-25 13:07         ` Johannes Schindelin
2020-06-23 22:33     ` [PATCH v3 2/8] send-pack/transport-helper: avoid mentioning a particular branch Johannes Schindelin via GitGitGadget
2020-06-24  0:36       ` Junio C Hamano
2020-06-24 12:44         ` Johannes Schindelin
2020-06-24 15:44           ` Junio C Hamano
2020-06-25 13:05             ` Johannes Schindelin
2020-06-23 22:33     ` [PATCH v3 3/8] submodule: use a better fall-back for missing remote.<name>.branch Johannes Schindelin via GitGitGadget
2020-06-24  2:18       ` Philippe Blain
2020-06-24 12:51         ` Johannes Schindelin
2020-06-23 22:33     ` [PATCH v3 4/8] init: allow specifying the initial branch name for the new repository Johannes Schindelin via GitGitGadget
2020-06-24  0:58       ` Junio C Hamano
2020-06-24 12:55         ` Johannes Schindelin
2020-06-23 22:33     ` [PATCH v3 5/8] init: allow setting the default for the initial branch name via the config Don Goodman-Wilson via GitGitGadget
2020-06-24  1:05       ` Junio C Hamano
2020-06-24 12:56         ` Johannes Schindelin
2020-06-24 16:25           ` Junio C Hamano
2020-06-23 22:33     ` [PATCH v3 6/8] clone: use configured default branch name when appropriate Johannes Schindelin via GitGitGadget
2020-06-23 22:33     ` [PATCH v3 7/8] remote: use the " Johannes Schindelin via GitGitGadget
2020-06-24  1:10       ` Junio C Hamano
2020-06-24 13:00         ` Johannes Schindelin
2020-06-23 22:33     ` [PATCH v3 8/8] testsvn: respect `init.defaultBranch` Johannes Schindelin via GitGitGadget
2020-06-24 14:46     ` [PATCH v4 0/9] Allow overriding the default name of the default branch Johannes Schindelin via GitGitGadget
2020-06-24 14:46       ` [PATCH v4 1/9] fmt-merge-msg: stop treating `master` specially Johannes Schindelin via GitGitGadget
2020-06-29 16:20         ` Đoàn Trần Công Danh
2020-06-29 13:27           ` Johannes Schindelin
2020-06-30 15:05             ` Đoàn Trần Công Danh
2020-07-01 10:39               ` Johannes Schindelin
2020-07-01 19:54                 ` Junio C Hamano
2020-06-24 14:46       ` [PATCH v4 2/9] send-pack/transport-helper: avoid mentioning a particular branch Johannes Schindelin via GitGitGadget
2020-06-24 14:46       ` [PATCH v4 3/9] submodule: fall back to remote's HEAD for missing remote.<name>.branch Johannes Schindelin via GitGitGadget
2020-06-24 16:17         ` Junio C Hamano
2020-06-24 14:46       ` [PATCH v4 4/9] docs: add missing diamond brackets Johannes Schindelin via GitGitGadget
2020-06-24 14:46       ` [PATCH v4 5/9] init: allow specifying the initial branch name for the new repository Johannes Schindelin via GitGitGadget
2020-06-24 14:46       ` [PATCH v4 6/9] init: allow setting the default for the initial branch name via the config Don Goodman-Wilson via GitGitGadget
2020-06-24 14:46       ` [PATCH v4 7/9] clone: use configured default branch name when appropriate Johannes Schindelin via GitGitGadget
2020-06-24 14:46       ` [PATCH v4 8/9] remote: use the " Johannes Schindelin via GitGitGadget
2020-06-24 14:46       ` [PATCH v4 9/9] testsvn: respect `init.defaultBranch` Johannes Schindelin via GitGitGadget
2020-06-24 16:26       ` [PATCH v4 0/9] Allow overriding the default name of the default branch Junio C Hamano
2020-06-25 13:03         ` Johannes Schindelin
2020-06-29 22:41       ` brian m. carlson
2020-07-12 13:03         ` Edward Thomson
2020-07-12  8:19           ` Johannes Schindelin
     [not found]             ` <CA+WKDT1GMNTY5N862-7ui70D6-b1u6fuUkvctEYo+57aJGbjmw@mail.gmail.com>
2020-07-14 14:55               ` Johannes Schindelin
2020-06-16  9:47 ` [PATCH " Ævar Arnfjörð Bjarmason
2020-06-16 14:09   ` Jeff King
2020-06-16 14:24     ` Jeff King
2020-06-23 20:28       ` Johannes Schindelin
2020-06-17 20:28   ` Junio C Hamano

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