/**
  * @param string $dirNormal
  * @param PhingFile $file
  * @return string|false
  * @throws IOException
  */
 private function getIncludePattern($dirNormal, PhingFile $file)
 {
     $fileUtils = new FileUtils();
     $fileNormal = $fileUtils->normalize($file->getAbsolutePath());
     return rtrim(str_replace('\\', '/', substr($fileNormal, strlen($dirNormal))), '/') . '/';
 }