class CssCollectionOptimizer in Flysystem 2.0.x

Optimizes CSS assets.

Hierarchy

• class \Drupal\Core\Asset\CssCollectionOptimizer implements AssetCollectionOptimizerInterface
  • class \Drupal\flysystem\Asset\CssCollectionOptimizer uses SchemeExtensionTrait

2 files declare their use of CssCollectionOptimizer

CollectionOptimizerTest.php in tests/src/Kernel/CollectionOptimizerTest.php

FlysystemServiceProviderTest.php in tests/src/Unit/FlysystemServiceProviderTest.php

File

src/Asset/CssCollectionOptimizer.php, line 10

Namespace

Drupal\flysystem\Asset

class CssCollectionOptimizer extends DrupalCssCollectionOptimizer {
  use SchemeExtensionTrait;

  /**
   * {@inheritdoc}
   */
  public function deleteAll() {
    $this->state
      ->delete('drupal_css_cache_files');

    /** @var \Drupal\Core\File\FileSystem $file_system */
    $file_system = \Drupal::service('file_system');
    $delete_stale = static function ($uri) use ($file_system) {

      // Default stale file threshold is 30 days (2592000 seconds).
      $stale_file_threshold = \Drupal::config('system.performance')
        ->get('stale_file_threshold') ?? 2592000;
      if (\Drupal::time()
        ->getRequestTime() - filemtime($uri) > $stale_file_threshold) {
        $file_system
          ->delete($uri);
      }
    };
    $css_dir = $this
      ->getSchemeForExtension('css') . '://css';
    if (is_dir($css_dir)) {
      $file_system
        ->scanDirectory($css_dir, '/.*/', [
        'callback' => $delete_stale,
      ]);
    }
  }

}

Members

Name	Modifiers	Type	Description	Overrides
CssCollectionOptimizer::$dumper	protected	property	An asset dumper.
CssCollectionOptimizer::$fileSystem	protected	property	The file system service.
CssCollectionOptimizer::$grouper	protected	property	A CSS asset grouper.
CssCollectionOptimizer::$optimizer	protected	property	A CSS asset optimizer.
CssCollectionOptimizer::$state	protected	property	The state key/value store.
CssCollectionOptimizer::deleteAll	public	function	Deletes all optimized asset collections assets. Overrides CssCollectionOptimizer::deleteAll
CssCollectionOptimizer::generateHash	protected	function	Generate a hash for a given group of CSS assets.
CssCollectionOptimizer::getAll	public	function	Returns all optimized asset collections assets. Overrides AssetCollectionOptimizerInterface::getAll
CssCollectionOptimizer::optimize	public	function	The cache file name is retrieved on a page load via a lookup variable that contains an associative array. The array key is the hash of the file names in $css while the value is the cache file name. The cache file is generated in two cases. First, if… Overrides AssetCollectionOptimizerInterface::optimize
CssCollectionOptimizer::__construct	public	function	Constructs a CssCollectionOptimizer.
SchemeExtensionTrait::getSchemeForExtension	public	function	Returns the scheme that should serve an extension.