class JpegoptimFilter

JpegoptimFilterTest.php in drupal/core/vendor/kriswallsmith/assetic/tests/Assetic/Test/Filter/JpegoptimFilterTest.php

class JpegoptimFilter implements FilterInterface {
  private $jpegoptimBin;
  private $stripAll;
  private $max;

  /**
   * Constructor.
   *
   * @param string $jpegoptimBin Path to the jpegoptim binary
   */
  public function __construct($jpegoptimBin = '/usr/bin/jpegoptim') {
    $this->jpegoptimBin = $jpegoptimBin;
  }
  public function setStripAll($stripAll) {
    $this->stripAll = $stripAll;
  }
  public function setMax($max) {
    $this->max = $max;
  }
  public function filterLoad(AssetInterface $asset) {
  }
  public function filterDump(AssetInterface $asset) {
    $pb = new ProcessBuilder(array(
      $this->jpegoptimBin,
    ));
    if ($this->stripAll) {
      $pb
        ->add('--strip-all');
    }
    if ($this->max) {
      $pb
        ->add('--max=' . $this->max);
    }
    $pb
      ->add($input = tempnam(sys_get_temp_dir(), 'assetic_jpegoptim'));
    file_put_contents($input, $asset
      ->getContent());
    $proc = $pb
      ->getProcess();
    $proc
      ->run();
    if (false !== strpos($proc
      ->getOutput(), 'ERROR')) {
      unlink($input);
      throw FilterException::fromProcess($proc)
        ->setInput($asset
        ->getContent());
    }
    $asset
      ->setContent(file_get_contents($input));
    unlink($input);
  }

}