class CssCollectionOptimizer in Flysystem 8

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

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

JsCollectionOptimizerTest.php in tests/src/Unit/Asset/JsCollectionOptimizerTest.php

File

src/Asset/CssCollectionOptimizer.php, line 14

Namespace

Drupal\flysystem\Asset

class CssCollectionOptimizer extends DrupalCssCollectionOptimizer {
  use SchemeExtensionTrait;

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

      // Default stale file threshold is 30 days.
      if (REQUEST_TIME - filemtime($uri) > \Drupal::config('system.performance')
        ->get('stale_file_threshold')) {
        file_unmanaged_delete($uri);
      }
    };
    file_scan_directory($this
      ->getSchemeForExtension('css') . '://css', '/.*/', [
      '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.