public function CssCollectionOptimizer::deleteOld in Advanced CSS/JS Aggregation 8.2

Delete old optimized collection assets.

File

src/Asset/CssCollectionOptimizer.php, line 275

Class

CssCollectionOptimizer

Namespace

Drupal\advagg\Asset

Code

public function deleteOld() {
  $log = [];
  $this->state
    ->delete('system.css_cache_files');
  Cache::invalidateTags([
    'library_info',
  ]);
  $delete_old = function ($uri) use (&$log) {

    // Default stale file threshold is 30 days.
    // Delete old if > 3 times that.
    if (REQUEST_TIME - filemtime($uri) > $this->systemConfig
      ->get('stale_file_threshold') * 3) {
      file_unmanaged_delete($uri);
      $log[] = $uri;
    }
  };
  file_scan_directory($this->dumper
    ->preparePath('css'), '/.*/', [
    'callback' => $delete_old,
  ]);
  return $log;
}