Merge branch 'xx/remote-server-option-config'

A new configuration variable remote.<name>.serverOption makes the
transport layer act as if the --serverOption=<value> option is
given from the command line.

* xx/remote-server-option-config:
  ls-remote: leakfix for not clearing server_options
  fetch: respect --server-option when fetching multiple remotes
  transport.c:🤝 make use of server options from remote
  remote: introduce remote.<name>.serverOption configuration
  transport: introduce parse_transport_option() method

builtin/fetch.c

@@ -1981,6 +1981,8 @@ static int fetch_multiple(struct string_list *list, int max_children,
 	strvec_pushl(&argv, "-c", "fetch.bundleURI=",
 		     "fetch", "--append", "--no-auto-gc",
 		     "--no-write-commit-graph", NULL);
+	for (i = 0; i < server_options.nr; i++)
+		strvec_pushf(&argv, "--server-option=%s", server_options.items[i].string);
 	add_options_to_argv(&argv, config);
 
 	if (max_children != 1 && list->nr != 1) {

builtin/ls-remote.c

@@ -173,5 +173,6 @@ int cmd_ls_remote(int argc,
 	transport_ls_refs_options_release(&transport_options);
 
 	strvec_clear(&pattern);
+	string_list_clear(&server_options, 0);
 	return status;
 }

builtin/push.c

@@ -519,14 +519,7 @@ static int git_push_config(const char *k, const char *v,
 			RECURSE_SUBMODULES_ON_DEMAND : RECURSE_SUBMODULES_OFF;
 		recurse_submodules = val;
 	} 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);
-		return 0;
+		return parse_transport_option(k, v, &push_options_config);
 	} else if (!strcmp(k, "color.push")) {
 		push_use_color = git_config_colorbool(k, v);
 		return 0;