Filters an asset after it has been loaded.
AssetInterface $asset An asset:
Overrides FilterInterface::filterLoad
public function filterLoad(AssetInterface $asset) {
static $manifest = <<<EOF
name: Application%s
sources: [source.js]
EOF;
$hash = substr(sha1(time() . rand(11111, 99999)), 0, 7);
$package = sys_get_temp_dir() . '/assetic_packager_' . $hash;
mkdir($package);
file_put_contents($package . '/package.yml', sprintf($manifest, $hash));
file_put_contents($package . '/source.js', $asset
->getContent());
$packager = new \Packager(array_merge(array(
$package,
), $this->packages));
$content = $packager
->build(array(), array(), array(
'Application' . $hash,
));
unlink($package . '/package.yml');
unlink($package . '/source.js');
rmdir($package);
$asset
->setContent($content);
}