summaryrefslogtreecommitdiff
path: root/maintenance/minify.php
blob: 0846a64c0843b9f78232489ac86d0852dd3bf844 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
<?php
/**
 * Minify a file or set of files
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * @file
 * @ingroup Maintenance
 */

require_once( __DIR__ . '/Maintenance.php' );

/**
 * Maintenance script that minifies a file or set of files.
 *
 * @ingroup Maintenance
 */
class MinifyScript extends Maintenance {
	public $outDir;

	public function __construct() {
		parent::__construct();
		$this->addOption( 'outfile',
			'File for output. Only a single file may be specified for input.',
			false, true );
		$this->addOption( 'outdir',
			"Directory for output. If this is not specified, and neither is --outfile, then the\n" .
			"output files will be sent to the same directories as the input files.",
			false, true );
		$this->addOption( 'js-statements-on-own-line',
			"Boolean value for putting statements on their own line when minifying JavaScript.",
			false, true );
		$this->addOption( 'js-max-line-length',
			"Maximum line length for JavaScript minification.",
			false, true );
		$this->mDescription = "Minify a file or set of files.\n\n" .
			"If --outfile is not specified, then the output file names will have a .min extension\n" .
			"added, e.g. jquery.js -> jquery.min.js.";

	}

	public function execute() {
		if ( !count( $this->mArgs ) ) {
			$this->error( "minify.php: At least one input file must be specified." );
			exit( 1 );
		}

		if ( $this->hasOption( 'outfile' ) ) {
			if ( count( $this->mArgs ) > 1 ) {
				$this->error( '--outfile may only be used with a single input file.' );
				exit( 1 );
			}

			// Minify one file
			$this->minify( $this->getArg( 0 ), $this->getOption( 'outfile' ) );
			return;
		}

		$outDir = $this->getOption( 'outdir', false );

		foreach ( $this->mArgs as $arg ) {
			$inPath = realpath( $arg );
			$inName = basename( $inPath );
			$inDir = dirname( $inPath );

			if ( strpos( $inName, '.min.' ) !== false ) {
				$this->error( "Skipping $inName\n" );
				continue;
			}

			if ( !file_exists( $inPath ) ) {
				$this->error( "File does not exist: $arg", true );
			}

			$extension = $this->getExtension( $inName );
			$outName = substr( $inName, 0, -strlen( $extension ) ) . 'min.' . $extension;
			if ( $outDir === false ) {
				$outPath = $inDir . '/' . $outName;
			} else {
				$outPath = $outDir . '/' . $outName;
			}

			$this->minify( $inPath, $outPath );
		}
	}

	public function getExtension( $fileName ) {
		$dotPos = strrpos( $fileName, '.' );
		if ( $dotPos === false ) {
			$this->error( "No file extension, cannot determine type: $fileName" );
			exit( 1 );
		}
		return substr( $fileName, $dotPos + 1 );
	}

	public function minify( $inPath, $outPath ) {
		global $wgResourceLoaderMinifierStatementsOnOwnLine, $wgResourceLoaderMinifierMaxLineLength;

		$extension = $this->getExtension( $inPath );
		$this->output( basename( $inPath ) . ' -> ' . basename( $outPath ) . '...' );

		$inText = file_get_contents( $inPath );
		if ( $inText === false ) {
			$this->error( "Unable to open file $inPath for reading." );
			exit( 1 );
		}
		$outFile = fopen( $outPath, 'w' );
		if ( !$outFile ) {
			$this->error( "Unable to open file $outPath for writing." );
			exit( 1 );
		}

		switch ( $extension ) {
			case 'js':
				$outText = JavaScriptMinifier::minify( $inText,
					$this->getOption( 'js-statements-on-own-line', $wgResourceLoaderMinifierStatementsOnOwnLine ),
					$this->getOption( 'js-max-line-length', $wgResourceLoaderMinifierMaxLineLength )
				);
				break;
			case 'css':
				$outText = CSSMin::minify( $inText );
				break;
			default:
				$this->error( "No minifier defined for extension \"$extension\"" );
		}

		fwrite( $outFile, $outText );
		fclose( $outFile );
		$this->output( " ok\n" );
	}
}

$maintClass = 'MinifyScript';
require_once( RUN_MAINTENANCE_IF_MAIN );