docs: def find_cache_directory(remote):
      """
      Find the directory where temporary local checkouts are to be stored.
  
      :returns: The absolute pathname of a directory (a string).
      """
      return os.path.join('/var/cache/vcs-repo-mgr' if os.access('/var/cache', os.W_OK) else tempfile.gettempdir(),
                          urlparse.quote(remote, safe=''))