public function digipolisCleanDir($dirs, $opts = ['sort' => PartialCleanDirsTask::SORT_NAME])
    {
        $dirsArg = array();
        foreach (array_map('trim', explode(',', $dirs)) as $dir) {
            $dirParts = explode(':', $dir);
            if (count($dirParts) > 1) {
                $dirsArg[$dirParts[0]] = $dirParts[1];
                continue;
            }
            $dirsArg[] = $dirParts[0];
        }
        return $this->taskPartialCleanDirs($dirsArg)
            ->sortBy($opts['sort'])
            ->run();
    }