function RecursiveExtensionFilterIterator::accept

File

core/lib/Drupal/Core/Extension/Discovery/RecursiveExtensionFilterIterator.php, line 131

Class

RecursiveExtensionFilterIterator

Filters a RecursiveDirectoryIterator to discover extensions.

Namespace

Code

public function accept() {
    $name = $this->current()
        ->getFilename();
    // FilesystemIterator::SKIP_DOTS only skips '.' and '..', but not hidden
    // directories (like '.git').
    if ($name[0] == '.') {
        return FALSE;
    }
    if ($this->isDir()) {
        // If this is a subdirectory of a base search path, only recurse into the
        // fixed list of expected extension type directory names. Required for
        // scanning the top-level/root directory; without this condition, we would
        // recurse into the whole filesystem tree that possibly contains other
        // files aside from Drupal.
        if ($this->current()
            ->getSubPath() == '') {
            return in_array($name, $this->allowedExtensionTypes, TRUE);
        }
        // 'config' directories are special-cased here, because every extension
        // contains one. However, those default configuration directories cannot
        // contain extensions. The directory name cannot be globally skipped,
        // because core happens to have a directory of an actual module that is
        // named 'config'. By explicitly testing for that case, we can skip all
        // other config directories, and at the same time, still allow the core
        // config module to be overridden/replaced in a profile/site directory
        // (whereas it must be located directly in a modules directory).
        if ($name == 'config') {
            return substr($this->current()
                ->getPathname(), -14) == 'modules/config';
        }
        // Accept the directory unless the folder is skipped.
        return !in_array($name, $this->skippedFolders, TRUE);
    }
    else {
        // Only accept extension info files.
        return substr($name, -9) == '.info.yml';
    }
}