Function validate_and_set_submodule_gitdir

builtin/submodule--helper.c:477–501

#define INIT_CB_INIT { 0 }

static int validate_and_set_submodule_gitdir(struct strbuf *gitdir_path,
					     const char *submodule_name)
{
	const char *value;
	char *key;

	if (validate_submodule_git_dir(gitdir_path->buf, submodule_name))
		return -1;

	key = xstrfmt("submodule.%s.gitdir", submodule_name);

	/* Nothing to do if the config already exists. */
	if (!repo_config_get_string_tmp(the_repository, key, &value)) {
		free(key);
		return 0;
	}

	if (repo_config_set_gently(the_repository, key, gitdir_path->buf)) {
		free(key);
		return -1;
	}

	free(key);
	return 0;
}

static void create_default_gitdir_config(const char *submodule_name)
{