public function JsOptimizer::minifyJshrink in Advanced CSS/JS Aggregation 8.2

Minify a JS string using jshrink.

Parameters

string $contents: Javascript string.

array $asset: An asset.

bool $log_errors: FALSE to disable logging to watchdog on failure.

File

advagg_js_minify/src/Asset/JsOptimizer.php, line 389

Class

JsOptimizer

Optimizes a JavaScript asset.

Namespace

Drupal\advagg_js_minify\Asset

Code

public function minifyJshrink(&$contents, array $asset, $log_errors = TRUE) {
  $contents_before = $contents;

  // Only include jshrink.inc if the JShrink\Minifier class doesn't exist.
  if (!class_exists('\\JShrink\\Minifier')) {
    include drupal_get_path('module', 'advagg_js_minify') . '/jshrink.inc';
    $nesting_level = ini_get('xdebug.max_nesting_level');
    if (!empty($nesting_level) && $nesting_level < 200) {
      ini_set('xdebug.max_nesting_level', 200);
    }
  }
  ob_start();
  try {

    // JShrink the contents of the aggregated file.
    $contents = \JShrink\Minifier::minify($contents, [
      'flaggedComments' => FALSE,
    ]);

    // Capture any output from JShrink.
    $error = trim(ob_get_contents());
    if (!empty($error)) {
      throw new \Exception($error);
    }
  } catch (\Exception $e) {

    // Log the JShrink exception and rollback to uncompressed content.
    if ($log_errors) {
      $this->logger
        ->warning($e
        ->getMessage() . '<pre>' . $contents_before . '</pre>', []);
    }
    $contents = $contents_before;
  }
  ob_end_clean();
}