Function threaded_check_leading_path

symlinks.c:235–254

* Return zero if some leading path component of 'name' does not exist. * * Return -1 if leading path exists and is a directory. * * Return the length of a leading component if it either exists but it's not a * directory, or if we were unable to lstat() it. If warn_on_lstat_err is true, * also emit a warning for this error. */

 * also emit a warning for this error.
 */
static int threaded_check_leading_path(struct cache_def *cache, const char *name,
				       int len, int warn_on_lstat_err)
{
	unsigned int flags;
	int match_len = lstat_cache_matchlen(cache, name, len, &flags,
			   FL_SYMLINK|FL_NOENT|FL_DIR, USE_ONLY_LSTAT);
	int saved_errno = errno;

	if (flags & FL_NOENT)
		return 0;
	else if (flags & FL_DIR)
		return -1;
	if (warn_on_lstat_err && (flags & FL_LSTATERR)) {
		char *path = xmemdupz(name, match_len);
		errno = saved_errno;
		warning_errno(_("failed to lstat '%s'"), path);
		free(path);
	}
	return match_len;
}

int has_dirs_only_path(const char *name, int len, int prefix_len)
{