Subject: [GSoC PATCH v10 3/5] repo: add the field layout.bare

From: Lucas Seiki Oshiro <[email-masked]>
Date: Fri, 15 Aug 2025 10:55:19 -0300

This commit is part of the series that introduces the new subcommand
git-repo-info.

The flag --is-bare-repository from git-rev-parse is used for retrieving
whether the current repository is bare. This way, it is used for
querying repository metadata, fitting in the purpose of git-repo-info.

Then, add a new field layout.bare to the git-repo-info subcommand
containing that information.

Helped-by: Phillip Wood <[email-masked]>
Helped-by: Junio C Hamano <[email-masked]>
Helped-by: Justin Tobler <[email-masked]>
Helped-by: Eric Sunshine <[email-masked]>
Mentored-by: Karthik Nayak <[email-masked]>
Mentored-by: Patrick Steinhardt <[email-masked]>
Signed-off-by: Lucas Seiki Oshiro <[email-masked]>
---
 Documentation/git-repo.adoc |  3 +++
 builtin/repo.c              | 10 ++++++++++
 t/t1900-repo.sh             | 17 +++++++++++++++++
 3 files changed, 30 insertions(+)

diff --git a/Documentation/git-repo.adoc b/Documentation/git-repo.adoc
index a708c70a3d..d26c01a21b 100644
--- a/Documentation/git-repo.adoc
+++ b/Documentation/git-repo.adoc
@@ -38,6 +38,9 @@ In order to obtain a set of values from `git repo info`, you should provide
 the keys that identify them. Here's a list of the available keys and the
 values that they return:
 
+`layout.bare`::
+`true` if this is a bare repository, otherwise `false`.
+
 `references.format`::
 The reference storage format. The valid values are:
 +
diff --git a/builtin/repo.c b/builtin/repo.c
index 73d4e27a16..aada476e1c 100644
--- a/builtin/repo.c
+++ b/builtin/repo.c
@@ -1,4 +1,7 @@
+#define USE_THE_REPOSITORY_VARIABLE
+
 #include "builtin.h"
+#include "environment.h"
 #include "parse-options.h"
 #include "quote.h"
 #include "refs.h"
@@ -16,6 +19,12 @@ struct field {
 	get_value_fn *get_value;
 };
 
+static int get_layout_bare(struct repository *repo UNUSED, struct strbuf *buf)
+{
+	strbuf_addstr(buf, is_bare_repository() ? "true" : "false");
+	return 0;
+}
+
 static int get_references_format(struct repository *repo, struct strbuf *buf)
 {
 	strbuf_addstr(buf,
@@ -25,6 +34,7 @@ static int get_references_format(struct repository *repo, struct strbuf *buf)
 
 /* repo_info_fields keys must be in lexicographical order */
 static const struct field repo_info_fields[] = {
+	{ "layout.bare", get_layout_bare },
 	{ "references.format", get_references_format },
 };
 
diff --git a/t/t1900-repo.sh b/t/t1900-repo.sh
index dca4023a00..8368a168b6 100755
--- a/t/t1900-repo.sh
+++ b/t/t1900-repo.sh
@@ -35,6 +35,23 @@ test_repo_info 'ref format files is retrieved correctly' \
 test_repo_info 'ref format reftable is retrieved correctly' \
 	'git init --ref-format=reftable' 'format-reftable' 'references.format' 'reftable'
 
+test_repo_info 'bare repository = false is retrieved correctly' \
+	'git init' 'nonbare' 'layout.bare' 'false'
+
+test_repo_info 'bare repository = true is retrieved correctly' \
+	'git init --bare' 'bare' 'layout.bare' 'true'
+
+test_expect_success 'values returned in order requested' '
+	cat >expect <<-\EOF &&
+	layout.bare=false
+	references.format=files
+	layout.bare=false
+	EOF
+	git init --ref-format=files ordered &&
+	git -C ordered repo info layout.bare references.format layout.bare >actual &&
+	test_cmp expect actual
+'
+
 test_expect_success 'git-repo-info fails if an invalid key is requested' '
 	echo "error: key ${SQ}foo${SQ} not found" >expected_err &&
 	test_must_fail git repo info foo 2>actual_err &&
-- 
2.39.5 (Apple Git-154)