push: propagate push-options with --recurse-submodules

Teach push --recurse-submodules to propagate push-options recursively to
the pushes performed in the submodules.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

submodule.c

@@ -782,7 +782,9 @@ int find_unpushed_submodules(struct sha1_array *commits,
 	return needs_pushing->nr;
 }
 
-static int push_submodule(const char *path, int dry_run)
+static int push_submodule(const char *path,
+			  const struct string_list *push_options,
+			  int dry_run)
 {
 	if (add_submodule_odb(path))
 		return 1;
@@ -793,6 +795,12 @@ static int push_submodule(const char *path, int dry_run)
 		if (dry_run)
 			argv_array_push(&cp.args, "--dry-run");
 
+		if (push_options && push_options->nr) {
+			const struct string_list_item *item;
+			for_each_string_list_item(item, push_options)
+				argv_array_pushf(&cp.args, "--push-option=%s",
+						 item->string);
+		}
 		prepare_submodule_repo_env(&cp.env_array);
 		cp.git_cmd = 1;
 		cp.no_stdin = 1;
@@ -807,6 +815,7 @@ static int push_submodule(const char *path, int dry_run)
 
 int push_unpushed_submodules(struct sha1_array *commits,
 			     const char *remotes_name,
+			     const struct string_list *push_options,
 			     int dry_run)
 {
 	int i, ret = 1;
@@ -818,7 +827,7 @@ int push_unpushed_submodules(struct sha1_array *commits,
 	for (i = 0; i < needs_pushing.nr; i++) {
 		const char *path = needs_pushing.items[i].string;
 		fprintf(stderr, "Pushing submodule '%s'\n", path);
-		if (!push_submodule(path, dry_run)) {
+		if (!push_submodule(path, push_options, dry_run)) {
 			fprintf(stderr, "Unable to push submodule '%s'\n", path);
 			ret = 0;
 		}

submodule.h

@@ -92,6 +92,7 @@ extern int find_unpushed_submodules(struct sha1_array *commits,
 				    struct string_list *needs_pushing);
 extern int push_unpushed_submodules(struct sha1_array *commits,
 				    const char *remotes_name,
+				    const struct string_list *push_options,
 				    int dry_run);
 extern void connect_work_tree_and_git_dir(const char *work_tree, const char *git_dir);
 extern int parallel_submodules(void);

t/t5545-push-options.sh

@@ -142,6 +142,46 @@ test_expect_success 'push options work properly across http' '
 	test_cmp expect actual
 '
 
+test_expect_success 'push options and submodules' '
+	test_when_finished "rm -rf parent" &&
+	test_when_finished "rm -rf parent_upstream" &&
+	mk_repo_pair &&
+	git -C upstream config receive.advertisePushOptions true &&
+	cp -r upstream parent_upstream &&
+	test_commit -C upstream one &&
+
+	test_create_repo parent &&
+	git -C parent remote add up ../parent_upstream &&
+	test_commit -C parent one &&
+	git -C parent push --mirror up &&
+
+	git -C parent submodule add ../upstream workbench &&
+	git -C parent/workbench remote add up ../../upstream &&
+	git -C parent commit -m "add submoule" &&
+
+	test_commit -C parent/workbench two &&
+	git -C parent add workbench &&
+	git -C parent commit -m "update workbench" &&
+
+	git -C parent push \
+		--push-option=asdf --push-option="more structured text" \
+		--recurse-submodules=on-demand up master &&
+
+	git -C upstream rev-parse --verify master >expect &&
+	git -C parent/workbench rev-parse --verify master >actual &&
+	test_cmp expect actual &&
+
+	git -C parent_upstream rev-parse --verify master >expect &&
+	git -C parent rev-parse --verify master >actual &&
+	test_cmp expect actual &&
+
+	printf "asdf\nmore structured text\n" >expect &&
+	test_cmp expect upstream/.git/hooks/pre-receive.push_options &&
+	test_cmp expect upstream/.git/hooks/post-receive.push_options &&
+	test_cmp expect parent_upstream/.git/hooks/pre-receive.push_options &&
+	test_cmp expect parent_upstream/.git/hooks/post-receive.push_options
+'
+
 stop_httpd
 
 test_done

transport.c

@@ -1031,6 +1031,7 @@ int transport_push(struct transport *transport,
 
 			if (!push_unpushed_submodules(&commits,
 						      transport->remote->name,
+						      transport->push_options,
 						      pretend)) {
 				sha1_array_clear(&commits);
 				die("Failed to push all needed submodules!");