public AssetDumper::dump($data, $file_extension)
The file name for the CSS or JS cache file is generated from the hash of the aggregated contents of the files in $data. This forces proxies and browsers to download new CSS when the CSS changes.
Overrides AssetDumperInterface::dump
File
- core/lib/Drupal/Core/Asset/AssetDumper.php, line 19
Class
- AssetDumper
- Dumps a CSS or JavaScript asset.
Namespace
Drupal\Core\Asset
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | public function dump($data, $file_extension) { // Prefix filename to prevent blocking by firewalls which reject files // starting with "ad*". $filename = $file_extension . '_' . Crypt::hashBase64($data) . '.' . $file_extension; // Create the css/ or js/ path within the files folder. $uri = $path . '/' . $filename; // Create the CSS or JS file. file_prepare_directory($path, FILE_CREATE_DIRECTORY); if (!file_exists($uri) && !file_unmanaged_save_data($data, $uri, FILE_EXISTS_REPLACE)) { return FALSE; } // If CSS/JS gzip compression is enabled and the zlib extension is available // then create a gzipped version of this file. This file is served // conditionally to browsers that accept gzip using .htaccess rules. // It's possible that the rewrite rules in .htaccess aren't working on this // server, but there's no harm (other than the time spent generating the // file) in generating the file anyway. Sites on servers where rewrite rules // aren't working can set css.gzip to FALSE in order to skip // generating a file that won't be used. if (extension_loaded('zlib') && \Drupal::config('system.performance')->get($file_extension . '.gzip')) { if (!file_exists($uri . '.gz') && !file_unmanaged_save_data(gzencode($data, 9, FORCE_GZIP), $uri . '.gz', FILE_EXISTS_REPLACE)) { return FALSE; } } return $uri;} |
Please login to continue.