source: sandbox/newExpressoMail/newExpressoMail/Assetic/Filter/UglifyJsFilter.php @ 7265

Revision 7265, 3.3 KB checked in by gustavo, 12 years ago (diff)

Ticket #0000 - Criado novo modulo para o desenvolvimento do novo ExpressoMail?

  • Property svn:executable set to *
Line 
1<?php
2
3/*
4 * This file is part of the Assetic package, an OpenSky project.
5 *
6 * (c) 2010-2012 OpenSky Project Inc
7 *
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
10 */
11
12namespace Assetic\Filter;
13
14use Assetic\Asset\AssetInterface;
15use Assetic\Exception\FilterException;
16use Symfony\Component\Process\ProcessBuilder;
17
18/**
19 * UglifyJs filter.
20 *
21 * @link https://github.com/mishoo/UglifyJS
22 * @author André Roaldseth <andre@roaldseth.net>
23 */
24class UglifyJsFilter implements FilterInterface
25{
26    private $uglifyJsPath;
27    private $nodeJsPath;
28
29    private $noCopyright;
30    private $beautify;
31    private $unsafe;
32
33    /**
34     * @param string $uglifyJsPath Absolute path to the uglifyjs executable
35     * @param string $nodeJsPath   Absolute path to the folder containg node.js executable
36     */
37    public function __construct($uglifyJsPath, $nodeJsPath = null)
38    {
39        $this->uglifyJsPath = $uglifyJsPath;
40        $this->nodeJsPath = $nodeJsPath;
41    }
42
43    /**
44     * Removes the first block of comments as well
45     * @param bool $noCopyright True to enable
46     */
47    public function setNoCopyright($noCopyright)
48    {
49        $this->noCopyright = $noCopyright;
50    }
51
52    /**
53     * Output indented code
54     * @param bool $beautify True to enable
55     */
56    public function setBeautify($beautify)
57    {
58        $this->beautify = $beautify;
59    }
60
61    /**
62     * Enable additional optimizations that are known to be unsafe in some situations.
63     * @param bool $unsafe True to enable
64     */
65    public function setUnsafe($unsafe)
66    {
67        $this->unsafe = $unsafe;
68    }
69
70    /**
71     * @see Assetic\Filter\FilterInterface::filterLoad()
72     */
73    public function filterLoad(AssetInterface $asset)
74    {
75    }
76
77    /**
78     * Run the asset through UglifyJs
79     *
80     * @see Assetic\Filter\FilterInterface::filterDump()
81     */
82    public function filterDump(AssetInterface $asset)
83    {
84        $executables = array();
85
86        if ($this->nodeJsPath !== null) {
87            $executables[] = $this->nodeJsPath;
88        }
89
90        $executables[] = $this->uglifyJsPath;
91
92        $pb = new ProcessBuilder($executables);
93
94        if ($this->noCopyright) {
95            $pb->add('--no-copyright');
96        }
97
98        if ($this->beautify) {
99            $pb->add('--beautify');
100        }
101
102        if ($this->unsafe) {
103            $pb->add('--unsafe');
104        }
105
106        // input and output files
107        $input = tempnam(sys_get_temp_dir(), 'input');
108        $output = tempnam(sys_get_temp_dir(), 'output');
109
110        file_put_contents($input, $asset->getContent());
111        $pb->add('-o')->add($output)->add($input);
112
113        $proc = $pb->getProcess();
114        $code = $proc->run();
115        unlink($input);
116
117        if (0 < $code) {
118            if (file_exists($output)) {
119                unlink($output);
120            }
121
122            if (127 === $code) {
123                throw new \RuntimeException('Path to node executable could not be resolved.');
124            }
125
126            throw FilterException::fromProcess($proc)->setInput($asset->getContent());
127        }
128
129        if (!file_exists($output)) {
130            throw new \RuntimeException('Error creating output file.');
131        }
132
133        $uglifiedJs = file_get_contents($output);
134        unlink($output);
135
136        $asset->setContent($uglifiedJs);
137    }
138}
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