def on_cleanup_error(function, path, excinfo):
                click.secho("warning: failed to remove file or directory: {}\n"
                            "please delete it manually.".format(path),
                            fg="red")
def visitdir(self, dir):
        dir = normalizerootdir(dir, "visitdir")
        if self._prefix and dir in self._roots:
            return "all"
        return (
            dir in self._roots
            or dir in self._dirs
            or any(parentdir in self._roots for parentdir in util.finddirs(dir))
        )