From 6417cf9c21e9b3f450cd78352d19f43a4dd5a495 Mon Sep 17 00:00:00 2001
From: Shourya Shukla <shouryashukla.oo@gmail.com>
Date: Fri, 8 May 2020 11:51:36 +0530
Subject: [PATCH] submodule: port subcommand 'set-url' from shell to C

Convert submodule subcommand 'set-url' to a builtin. Port 'set-url' to
'submodule--helper.c' and call the latter via 'git-submodule.sh'.

Signed-off-by: Shourya Shukla <shouryashukla.oo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin/submodule--helper.c | 32 ++++++++++++++++++++++++++++++++
 git-submodule.sh            | 22 +---------------------
 2 files changed, 33 insertions(+), 21 deletions(-)

diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index 1a4b391c88..46c03d2a12 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -2246,6 +2246,37 @@ static int module_config(int argc, const char **argv, const char *prefix)
 	usage_with_options(git_submodule_helper_usage, module_config_options);
 }
 
+static int module_set_url(int argc, const char **argv, const char *prefix)
+{
+	int quiet = 0;
+	const char *newurl;
+	const char *path;
+	char *config_name;
+
+	struct option options[] = {
+		OPT__QUIET(&quiet, N_("Suppress output for setting url of a submodule")),
+		OPT_END()
+	};
+	const char *const usage[] = {
+		N_("git submodule--helper set-url [--quiet] <path> <newurl>"),
+		NULL
+	};
+
+	argc = parse_options(argc, argv, prefix, options, usage, 0);
+
+	if (argc != 2 || !(path = argv[0]) || !(newurl = argv[1]))
+		usage_with_options(usage, options);
+
+	config_name = xstrfmt("submodule.%s.url", path);
+
+	config_set_in_gitmodules_file_gently(config_name, newurl);
+	sync_submodule(path, prefix, quiet ? OPT_QUIET : 0);
+
+	free(config_name);
+
+	return 0;
+}
+
 #define SUPPORT_SUPER_PREFIX (1<<0)
 
 struct cmd_struct {
@@ -2276,6 +2307,7 @@ static struct cmd_struct commands[] = {
 	{"is-active", is_active, 0},
 	{"check-name", check_name, 0},
 	{"config", module_config, 0},
+	{"set-url", module_set_url, 0},
 };
 
 int cmd_submodule__helper(int argc, const char **argv, const char *prefix)
diff --git a/git-submodule.sh b/git-submodule.sh
index 08e0439df0..39ebdf25b5 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -805,27 +805,7 @@ cmd_set_url() {
 		shift
 	done
 
-	if test $# -ne 2
-	then
-		usage
-	fi
-
-	# we can't use `git submodule--helper name` here because internally, it
-	# hashes the path so a trailing slash could lead to an unintentional no match
-	name="$(git submodule--helper list "$1" | cut -f2)"
-	if test -z "$name"
-	then
-		exit 1
-	fi
-
-	url="$2"
-	if test -z "$url"
-	then
-		exit 1
-	fi
-
-	git submodule--helper config submodule."$name".url "$url"
-	git submodule--helper sync ${GIT_QUIET:+--quiet} "$name"
+	git ${wt_prefix:+-C "$wt_prefix"} ${prefix:+--super-prefix "$prefix"} submodule--helper set-url ${GIT_QUIET:+--quiet} -- "$@"
 }
 
 #