Function push_submodule

submodule.c:1123–1168

}

static int push_submodule(const char *path,
			  const struct remote *remote,
			  const struct refspec *rs,
			  const struct string_list *push_options,
			  int dry_run)
{
	if (validate_submodule_path(path) < 0)
		exit(128);

	if (for_each_remote_ref_submodule(path, has_remote, NULL) > 0) {
		struct child_process cp = CHILD_PROCESS_INIT;
		strvec_push(&cp.args, "push");
		/*
		 * When recursing into a submodule, treat any "only" configurations as "on-
		 * demand", since "only" would not work (we need all submodules to be pushed
		 * in order to be able to push the superproject).
		 */
		strvec_push(&cp.args, "--recurse-submodules=only-is-on-demand");
		if (dry_run)
			strvec_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)
				strvec_pushf(&cp.args, "--push-option=%s",
					     item->string);
		}

		if (remote->origin != REMOTE_UNCONFIGURED) {
			int i;
			strvec_push(&cp.args, remote->name);
			for (i = 0; i < rs->nr; i++)
				strvec_push(&cp.args, rs->items[i].raw);
		}

		prepare_submodule_repo_env(&cp.env);
		cp.git_cmd = 1;
		cp.no_stdin = 1;
		cp.dir = path;
		if (run_command(&cp))
			return 0;
		close(cp.out);
	}

	return 1;
}

/*
 * Perform a check in the submodule to see if the remote and refspec work.