public function JsMinifier::minifyJshrink in Advanced CSS/JS Aggregation 8.4

Same name and namespace in other branches

1. 8.3 advagg_js_minify/src/Asset/JsMinifier.php \Drupal\advagg_js_minify\Asset\JsMinifier::minifyJshrink()

Minify a JS string using jshrink.

Parameters

string $contents: Javascript string.

File

advagg_js_minify/src/Asset/JsMinifier.php, line 239

Class

JsMinifier

Optimizes a JavaScript asset.

Namespace

Drupal\advagg_js_minify\Asset

Code

public function minifyJshrink(&$contents, $path) {
  $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.
    // @codingStandardsIgnoreLine
    $contents = \JShrink\Minifier::minify($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.
    $this->logger
      ->warning('JShrink had a possible error minifying: @file. Using uncompressed version. Error: ' . $e
      ->getMessage(), [
      '@file' => $path,
    ]);
    $contents = $contents_before;
  }
  ob_end_clean();
}