protected function deleteIgnoredFiles()
    {
        if ($this->ignore) {
            foreach ($this->phpci->ignore as $file) {
                $cmd = 'rm -Rf "%s/%s"';
                if (IS_WIN) {
                    $cmd = 'rmdir /S /Q "%s\%s"';
                }
                $this->phpci->executeCommand($cmd, $this->directory, $file);
            }
        }
    }