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

Revision 7265, 3.0 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 * UglifyCss filter.
20 *
21 * @link https://github.com/fmarcia/UglifyCSS
22 * @author Franck Marcia <franck.marcia@gmail.com>
23 */
24class UglifyCssFilter implements FilterInterface
25{
26    private $uglifyCssPath;
27    private $nodeJsPath;
28
29    private $expandVars;
30    private $uglyComments;
31    private $cuteComments;
32
33    /**
34     * @param string $uglifyCssPath Absolute path to the uglifycss executable
35     * @param string $nodeJsPath Absolute path to the folder containg node.js executable
36     */
37    public function __construct($uglifyCssPath, $nodeJsPath = null)
38    {
39        $this->uglifyCssPath = $uglifyCssPath;
40        $this->nodeJsPath = $nodeJsPath;
41    }
42
43    /**
44     * Expand variables
45     * @param bool $expandVars True to enable
46     */
47    public function setExpandVars($expandVars)
48    {
49        $this->expandVars = $expandVars;
50    }
51
52    /**
53     * Remove newlines within preserved comments
54     * @param bool $uglyComments True to enable
55     */
56    public function setUglyComments($uglyComments)
57    {
58        $this->uglyComments = $uglyComments;
59    }
60
61    /**
62     * Preserve newlines within and around preserved comments
63     * @param bool $cuteComments True to enable
64     */
65    public function setCuteComments($cuteComments)
66    {
67        $this->cuteComments = $cuteComments;
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->uglifyCssPath;
91
92        $pb = new ProcessBuilder($executables);
93
94        if ($this->expandVars) {
95            $pb->add('--expand-vars');
96        }
97
98        if ($this->uglyComments) {
99            $pb->add('--ugly-comments');
100        }
101
102        if ($this->cuteComments) {
103            $pb->add('--cute-comments');
104        }
105
106        // input and output files
107        $input = tempnam(sys_get_temp_dir(), 'input');
108
109        file_put_contents($input, $asset->getContent());
110        $pb->add($input);
111
112        $proc = $pb->getProcess();
113        $code = $proc->run();
114        unlink($input);
115
116        if (127 === $code) {
117            throw new \RuntimeException('Path to node executable could not be resolved.');
118        }
119
120        if (0 < $code) {
121            throw FilterException::fromProcess($proc)->setInput($asset->getContent());
122        }
123
124        $asset->setContent($proc->getOutput());
125    }
126}
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