/**
* Compresses a string.
*
* @param string $content The content to compress
* @param string $type The type of content, either "js" or "css"
* @param array $options An indexed array of additional options
*
* @return string The compressed content
*/
protected function compress($content, $type, $options = array())
{
$pb = new ProcessBuilder();
$pb->add($this->javaPath)->add('-jar')->add($this->jarPath)->add('--type')->add($type);
foreach ($options as $option) {
$pb->add($option);
}
if (null !== $this->charset) {
$pb->add('--charset')->add($this->charset);
}
if (null !== $this->lineBreak) {
$pb->add('--line-break')->add($this->lineBreak);
}
$pb->setInput($content);
$proc = $pb->getProcess();
$code = $proc->run();
if (0 < $code) {
throw new \RuntimeException($proc->getErrorOutput());
}
return $proc->getOutput();
}
