Filter for the Google Closure Compiler JAR.
@link https://developers.google.com/closure/compiler/ @author Kris Wallsmith <kris.wallsmith@gmail.com>
Expanded class hierarchy of CompilerJarFilter
class CompilerJarFilter extends BaseCompilerFilter {
private $jarPath;
private $javaPath;
public function __construct($jarPath, $javaPath = '/usr/bin/java') {
$this->jarPath = $jarPath;
$this->javaPath = $javaPath;
}
public function filterDump(AssetInterface $asset) {
$cleanup = array();
$pb = new ProcessBuilder(array(
$this->javaPath,
'-jar',
$this->jarPath,
));
if (null !== $this->compilationLevel) {
$pb
->add('--compilation_level')
->add($this->compilationLevel);
}
if (null !== $this->jsExterns) {
$cleanup[] = $externs = tempnam(sys_get_temp_dir(), 'assetic_google_closure_compiler');
file_put_contents($externs, $this->jsExterns);
$pb
->add('--externs')
->add($externs);
}
if (null !== $this->externsUrl) {
$cleanup[] = $externs = tempnam(sys_get_temp_dir(), 'assetic_google_closure_compiler');
file_put_contents($externs, file_get_contents($this->externsUrl));
$pb
->add('--externs')
->add($externs);
}
if (null !== $this->excludeDefaultExterns) {
$pb
->add('--use_only_custom_externs');
}
if (null !== $this->formatting) {
$pb
->add('--formatting')
->add($this->formatting);
}
if (null !== $this->useClosureLibrary) {
$pb
->add('--manage_closure_dependencies');
}
if (null !== $this->warningLevel) {
$pb
->add('--warning_level')
->add($this->warningLevel);
}
if (null !== $this->language) {
$pb
->add('--language_in')
->add($this->language);
}
$pb
->add('--js')
->add($cleanup[] = $input = tempnam(sys_get_temp_dir(), 'assetic_google_closure_compiler'));
file_put_contents($input, $asset
->getContent());
$proc = $pb
->getProcess();
$code = $proc
->run();
array_map('unlink', $cleanup);
if (0 < $code) {
throw FilterException::fromProcess($proc)
->setInput($asset
->getContent());
}
$asset
->setContent($proc
->getOutput());
}
}