getComponentFolder example

  public function getComponentNames(array $list) {
    $extension = '.' . $this->getFileExtension();
    $pattern = '/' . preg_quote($extension, '/') . '$/';
    $folders = [];
    foreach ($list as $extension_object) {
      // We don't have to use ExtensionDiscovery here because our list of       // extensions was already obtained through an ExtensionDiscovery scan.       $directory = $this->getComponentFolder($extension_object);
      if (is_dir($directory)) {
        // glob() directly calls into libc glob(), which is not aware of PHP         // stream wrappers. Same for \GlobIterator (which additionally requires         // an absolute realpath() on Windows).         // @see https://github.com/mikey179/vfsStream/issues/2         $files = scandir($directory);

        foreach ($files as $file) {
          if ($file[0] !== '.' && preg_match($pattern, $file)) {
            $folders[basename($file, $extension)] = $directory;
          }
        }