104 lines
2.3 KiB
PHP
104 lines
2.3 KiB
PHP
<?php
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/*
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* This file is part of the Assetic package, an OpenSky project.
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*
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* (c) 2010-2012 OpenSky Project Inc
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Assetic\Filter;
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use Assetic\Asset\AssetInterface;
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use Assetic\Exception\FilterException;
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use Symfony\Component\Process\ProcessBuilder;
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/**
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* Runs assets through jpegtran.
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*
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* @link http://jpegclub.org/jpegtran/
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* @author Kris Wallsmith <kris.wallsmith@gmail.com>
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*/
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class JpegtranFilter implements FilterInterface
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{
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const COPY_NONE = 'none';
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const COPY_COMMENTS = 'comments';
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const COPY_ALL = 'all';
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private $jpegtranBin;
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private $optimize;
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private $copy;
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private $progressive;
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private $restart;
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/**
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* Constructor.
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*
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* @param string $jpegtranBin Path to the jpegtran binary
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*/
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public function __construct($jpegtranBin = '/usr/bin/jpegtran')
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{
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$this->jpegtranBin = $jpegtranBin;
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}
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public function setOptimize($optimize)
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{
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$this->optimize = $optimize;
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}
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public function setCopy($copy)
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{
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$this->copy = $copy;
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}
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public function setProgressive($progressive)
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{
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$this->progressive = $progressive;
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}
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public function setRestart($restart)
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{
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$this->restart = $restart;
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}
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public function filterLoad(AssetInterface $asset)
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{
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}
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public function filterDump(AssetInterface $asset)
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{
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$pb = new ProcessBuilder(array($this->jpegtranBin));
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if ($this->optimize) {
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$pb->add('-optimize');
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}
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if ($this->copy) {
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$pb->add('-copy')->add($this->copy);
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}
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if ($this->progressive) {
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$pb->add('-progressive');
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}
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if (null !== $this->restart) {
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$pb->add('-restart')->add($this->restart);
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}
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$pb->add($input = tempnam(sys_get_temp_dir(), 'assetic_jpegtran'));
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file_put_contents($input, $asset->getContent());
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$proc = $pb->getProcess();
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$code = $proc->run();
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unlink($input);
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if (0 < $code) {
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throw FilterException::fromProcess($proc)->setInput($asset->getContent());
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}
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$asset->setContent($proc->getOutput());
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}
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}
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