/**
* Compresses the files (if necessary).
*
* @param Builder $builder The archive builder.
*
* @return BuildCommand For method chaining.
*
* @throws InvalidArgumentException If the algorithm is invalid.
*/
private function compressFiles(Builder $builder)
{
$event = new PreCompressEvent($builder, constant('Phar::' . $this->config['build']['compress']));
$this->dispatcher->dispatch(Events::PRE_BUILD_COMPRESS, $event);
if (Builder::NONE !== $event->getAlgorithm()) {
$builder->compressFiles($event->getAlgorithm());
}
$this->dispatcher->dispatch(Events::POST_BUILD_COMPRESS, new PostCompressEvent($builder, $event->getAlgorithm()));
return $this;
}
