Function validate_submodule_legacy_git_dir

submodule.c:2402–2445

}

static int validate_submodule_legacy_git_dir(char *git_dir, const char *submodule_name)
{
	size_t len = strlen(git_dir), suffix_len = strlen(submodule_name);
	char *p;
	int ret = 0;

	if (the_repository->repository_format_submodule_path_cfg)
		BUG("validate_submodule_git_dir() must be called with "
		    "extensions.submodulePathConfig disabled.");

	if (len <= suffix_len || (p = git_dir + len - suffix_len)[-1] != '/' ||
	    strcmp(p, submodule_name))
		BUG("submodule name '%s' not a suffix of git dir '%s'",
		    submodule_name, git_dir);

	/*
	 * We prevent the contents of sibling submodules' git directories to
	 * clash.
	 *
	 * Example: having a submodule named `hippo` and another one named
	 * `hippo/hooks` would result in the git directories
	 * `.git/modules/hippo/` and `.git/modules/hippo/hooks/`, respectively,
	 * but the latter directory is already designated to contain the hooks
	 * of the former.
	 */
	for (; *p; p++) {
		if (is_dir_sep(*p)) {
			char c = *p;

			*p = '\0';
			if (is_git_directory(git_dir))
				ret = -1;
			*p = c;

			if (ret < 0)
				return error(_("submodule git dir '%s' is "
					       "inside git dir '%.*s'"),
					     git_dir,
					     (int)(p - git_dir), git_dir);
		}
	}

	return 0;
}

int validate_submodule_git_dir(char *git_dir, const char *submodule_name)
{