[PATCH 1/4] transport: add parse_transport_option() method

["Xing Xin via GitGitGadget" <gitgitgadget@gmail.com>]

From: Xing Xin <xingxin.xx@bytedance.com>

Introduce the `parse_transport_option()` method used to parse
`push.pushOption` configuration values. This method will be further
utilized in subsequent commits to parse a newly added
`fetch.serverOption` configuration for fetches, which aligns with the
design pattern of `push.pushOption`.

Signed-off-by: Xing Xin <xingxin.xx@bytedance.com>
---
 builtin/push.c | 6 +-----
 transport.c    | 8 ++++++++
 transport.h    | 3 +++
 3 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/builtin/push.c b/builtin/push.c
index 7a67398124f..63d19acfb27 100644
--- a/builtin/push.c
+++ b/builtin/push.c
@@ -519,11 +519,7 @@ static int git_push_config(const char *k, const char *v,
 	} else if (!strcmp(k, "push.pushoption")) {
 		if (!v)
 			return config_error_nonbool(k);
-		else
-			if (!*v)
-				string_list_clear(&push_options_config, 0);
-			else
-				string_list_append(&push_options_config, v);
+		parse_transport_option(v, &push_options_config);
 		return 0;
 	} else if (!strcmp(k, "color.push")) {
 		push_use_color = git_config_colorbool(k, v);
diff --git a/transport.c b/transport.c
index bab28965f96..ca6cd5b3436 100644
--- a/transport.c
+++ b/transport.c
@@ -1091,6 +1091,14 @@ int is_transport_allowed(const char *type, int from_user)
 	BUG("invalid protocol_allow_config type");
 }
 
+void parse_transport_option(const char *option, struct string_list *transport_options)
+{
+	if (!*option)
+		string_list_clear(transport_options, 0);
+	else
+		string_list_append(transport_options, option);
+}
+
 void transport_check_allowed(const char *type)
 {
 	if (!is_transport_allowed(type, -1))
diff --git a/transport.h b/transport.h
index 6393cd9823c..1b8735e2ca4 100644
--- a/transport.h
+++ b/transport.h
@@ -342,4 +342,7 @@ void transport_print_push_status(const char *dest, struct ref *refs,
 /* common method used by transport-helper.c and send-pack.c */
 void reject_atomic_push(struct ref *refs, int mirror_mode);
 
+/* common method to parse push-option for pushes or server-option for fetches */
+void parse_transport_option(const char *option, struct string_list *transport_options);
+
 #endif
-- 
gitgitgadget