Deployment\Preprocessor::compressCss PHP Метод

    public function compressCss($content, $origFile)
    {
        if ($this->requireCompressMark && !preg_match('#/\\*+!#', $content)) {
            // must contain /**!
            return $content;
        }
        $this->logger->log("Compressing {$origFile}");
        $data = ['code' => $content, 'type' => 'css', 'options' => ['advanced' => TRUE, 'aggressiveMerging' => TRUE, 'rebase' => FALSE, 'processImport' => FALSE, 'compatibility' => 'ie8', 'keepSpecialComments' => '1']];
        $output = Helpers::fetchUrl('https://refresh-sf.herokuapp.com/css/', $error, $data);
        if ($error) {
            $this->logger->log("Unable to minfy: {$error}\n");
            return $content;
        }
        $json = @json_decode($output, TRUE);
        if (!isset($json['code'])) {
            $this->logger->log("Unable to minfy. Server response: {$output}\n");
            return $content;
        }
        return $json['code'];
    }