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From: Lucas Seiki Oshiro <lucasseikioshiro@gmail•com>
To: git@vger•kernel.org
Cc: ps@pks•im, karthik.188@gmail•com, gitster@pobox•com,
	Lucas Seiki Oshiro <lucasseikioshiro@gmail•com>
Subject: [GSoC PATCH v4 1/2] repo: add the flag -z as an alias for --format=nul
Date: Thu,  4 Sep 2025 10:40:16 -0300	[thread overview]
Message-ID: <20250904134017.47364-2-lucasseikioshiro@gmail.com> (raw)
In-Reply-To: <20250904134017.47364-1-lucasseikioshiro@gmail.com>

Other Git commands that have nul-terminated output (e.g. git-config,
git-status, git-ls-files) have a flag `-z` for using the null character
as the record separator.

Add the `-z` flag to git-repo-info as an alias for `--format=nul`,
making it consistent with the behavior of the other commands.

Mentored-by: Karthik Nayak <karthik.188@gmail•com>
Mentored-by: Patrick Steinhardt <ps@pks•im>
Signed-off-by: Lucas Seiki Oshiro <lucasseikioshiro@gmail•com>
---
 Documentation/git-repo.adoc |  6 ++++--
 builtin/repo.c              | 38 +++++++++++++++++++++++++------------
 t/t1900-repo.sh             | 12 ++++++++++++
 3 files changed, 42 insertions(+), 14 deletions(-)

diff --git a/Documentation/git-repo.adoc b/Documentation/git-repo.adoc
index 2870828d93..6f5ee88215 100644
--- a/Documentation/git-repo.adoc
+++ b/Documentation/git-repo.adoc
@@ -8,7 +8,7 @@ git-repo - Retrieve information about the repository
 SYNOPSIS
 --------
 [synopsis]
-git repo info [--format=(keyvalue|nul)] [<key>...]
+git repo info [--format=(keyvalue|nul)] [-z] [<key>...]
 
 DESCRIPTION
 -----------
@@ -18,7 +18,7 @@ THIS COMMAND IS EXPERIMENTAL. THE BEHAVIOR MAY CHANGE.
 
 COMMANDS
 --------
-`info [--format=(keyvalue|nul)] [<key>...]`::
+`info [--format=(keyvalue|nul)] [-z] [<key>...]`::
 	Retrieve metadata-related information about the current repository. Only
 	the requested data will be returned based on their keys (see "INFO KEYS"
 	section below).
@@ -40,6 +40,8 @@ supported:
 	between the key and the value and using a NUL character after each value.
 	This format is better suited for being parsed by another applications than
 	`keyvalue`. Unlike in the `keyvalue` format, the values are never quoted.
++
+`-z` is an alias for `--format=nul`.
 
 INFO KEYS
 ---------
diff --git a/builtin/repo.c b/builtin/repo.c
index 8c6e7f42ab..dc9a267469 100644
--- a/builtin/repo.c
+++ b/builtin/repo.c
@@ -9,7 +9,7 @@
 #include "shallow.h"
 
 static const char *const repo_usage[] = {
-	"git repo info [--format=(keyvalue|nul)] [<key>...]",
+	"git repo info [--format=(keyvalue|nul)] [-z] [<key>...]",
 	NULL
 };
 
@@ -112,26 +112,40 @@ static int print_fields(int argc, const char **argv,
 	return ret;
 }
 
+static int parse_format_cb(const struct option *opt,
+			   const char *arg, int unset UNUSED)
+{
+	enum output_format *format = opt->value;
+
+	if (opt->short_name == 'z')
+		*format = FORMAT_NUL_TERMINATED;
+	else if (!strcmp(arg, "nul"))
+		*format = FORMAT_NUL_TERMINATED;
+	else if (!strcmp(arg, "keyvalue"))
+		*format = FORMAT_KEYVALUE;
+	else
+		die(_("invalid format '%s'"), arg);
+
+	return 0;
+}
+
 static int repo_info(int argc, const char **argv, const char *prefix,
 		     struct repository *repo)
 {
-	const char *format_str = "keyvalue";
-	enum output_format format;
+	enum output_format format = FORMAT_KEYVALUE;
 	struct option options[] = {
-		OPT_STRING(0, "format", &format_str, N_("format"),
-			   N_("output format")),
+		OPT_CALLBACK_F(0, "format", &format, N_("format"),
+			       N_("output format"),
+			       PARSE_OPT_NONEG, parse_format_cb),
+		OPT_CALLBACK_F('z', NULL, &format, NULL,
+			       N_("synonym for --format=nul"),
+			       PARSE_OPT_NONEG | PARSE_OPT_NOARG,
+			       parse_format_cb),
 		OPT_END()
 	};
 
 	argc = parse_options(argc, argv, prefix, options, repo_usage, 0);
 
-	if (!strcmp(format_str, "keyvalue"))
-		format = FORMAT_KEYVALUE;
-	else if (!strcmp(format_str, "nul"))
-		format = FORMAT_NUL_TERMINATED;
-	else
-		die(_("invalid format '%s'"), format_str);
-
 	return print_fields(argc, argv, repo, format);
 }
 
diff --git a/t/t1900-repo.sh b/t/t1900-repo.sh
index a69c715357..ddf788d5a2 100755
--- a/t/t1900-repo.sh
+++ b/t/t1900-repo.sh
@@ -92,4 +92,16 @@ test_expect_success 'git-repo-info aborts when requesting an invalid format' '
 	test_cmp expect actual
 '
 
+test_expect_success '-z uses nul-terminated format' '
+	printf "layout.bare\nfalse\0layout.shallow\nfalse\0" >expected &&
+	git repo info -z layout.bare layout.shallow >actual &&
+	test_cmp expected actual
+'
+
+test_expect_success 'git repo info uses the last requested format' '
+	echo "layout.bare=false" >expected &&
+	git repo info --format=nul -z --format=keyvalue layout.bare >actual &&
+	test_cmp expected actual
+'
+
 test_done
-- 
2.39.5 (Apple Git-154)


  reply	other threads:[~2025-09-04 14:22 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-20 14:42 [GSoC PATCH 0/2] repo: add -z and objects.format Lucas Seiki Oshiro
2025-08-20 14:42 ` [GSoC PATCH 1/2] repo: add the flag -z as an alias for --format=nul Lucas Seiki Oshiro
2025-08-21 10:12   ` Karthik Nayak
2025-08-21 16:09     ` Junio C Hamano
2025-08-21 16:52       ` Karthik Nayak
2025-08-21 10:29   ` Patrick Steinhardt
2025-08-21 13:29     ` Lucas Seiki Oshiro
2025-08-21 17:28       ` Junio C Hamano
2025-08-21 20:57         ` Lucas Seiki Oshiro
2025-08-21 21:50           ` Junio C Hamano
2025-08-21 18:23   ` Jean-Noël AVILA
2025-08-21 19:52     ` Junio C Hamano
2025-08-20 14:42 ` [GSoC PATCH 2/2] repo: add the field objects.format Lucas Seiki Oshiro
2025-08-21 10:29   ` Patrick Steinhardt
2025-08-21 19:44   ` Junio C Hamano
2025-08-26 14:51     ` Lucas Seiki Oshiro
2025-08-21 10:14 ` [GSoC PATCH 0/2] repo: add -z and objects.format Karthik Nayak
2025-08-21 16:12   ` Junio C Hamano
2025-08-21 10:29 ` Patrick Steinhardt
2025-08-21 13:23   ` Lucas Seiki Oshiro
2025-08-21 14:55     ` Patrick Steinhardt
2025-08-21 17:28     ` Junio C Hamano
2025-08-26 18:13       ` Lucas Seiki Oshiro
2025-08-26 18:32 ` [GSoC PATCH v2 " Lucas Seiki Oshiro
2025-08-26 18:32   ` [GSoC PATCH v2 1/2] repo: add the flag -z as an alias for --format=nul Lucas Seiki Oshiro
2025-08-28 23:08     ` Junio C Hamano
2025-09-01 13:50       ` Lucas Seiki Oshiro
2025-08-26 18:32   ` [GSoC PATCH v2 2/2] repo: add the field objects.format Lucas Seiki Oshiro
2025-09-01 17:27 ` [GSoC PATCH v3 0/2] repo: add -z and objects.format Lucas Seiki Oshiro
2025-09-01 17:27   ` [GSoC PATCH v3 1/2] repo: add the flag -z as an alias for --format=nul Lucas Seiki Oshiro
2025-09-02 16:21     ` Junio C Hamano
2025-09-02 21:51       ` Lucas Seiki Oshiro
2025-09-01 17:27   ` [GSoC PATCH v3 2/2] repo: add the field objects.format Lucas Seiki Oshiro
2025-09-04 13:40 ` [GSoC PATCH v4 0/2] repo: add -z and objects.format Lucas Seiki Oshiro
2025-09-04 13:40   ` Lucas Seiki Oshiro [this message]
2025-09-04 13:40   ` [GSoC PATCH v4 2/2] repo: add the field objects.format Lucas Seiki Oshiro
2025-09-04 18:40   ` [GSoC PATCH v4 0/2] repo: add -z and objects.format Junio C Hamano

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