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<?php |
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/** |
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* Minify a file or set of files |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with this program; if not, write to the Free Software Foundation, Inc., |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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* http://www.gnu.org/copyleft/gpl.html |
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* |
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* @file |
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* @ingroup Maintenance |
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*/ |
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require_once __DIR__ . '/Maintenance.php'; |
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/** |
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* Maintenance script that minifies a file or set of files. |
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* |
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* @ingroup Maintenance |
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*/ |
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class MinifyScript extends Maintenance { |
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public $outDir; |
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public function __construct() { |
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parent::__construct(); |
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$this->addOption( 'outfile', |
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'File for output. Only a single file may be specified for input.', |
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false, true ); |
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$this->addOption( 'outdir', |
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"Directory for output. If this is not specified, and neither is --outfile, then the\n" . |
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"output files will be sent to the same directories as the input files.", |
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false, true ); |
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$this->addDescription( "Minify a file or set of files.\n\n" . |
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"If --outfile is not specified, then the output file names will have a .min extension\n" . |
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"added, e.g. jquery.js -> jquery.min.js." |
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); |
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} |
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public function execute() { |
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if ( !count( $this->mArgs ) ) { |
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$this->error( "minify.php: At least one input file must be specified." ); |
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exit( 1 ); |
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} |
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if ( $this->hasOption( 'outfile' ) ) { |
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if ( count( $this->mArgs ) > 1 ) { |
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$this->error( '--outfile may only be used with a single input file.' ); |
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exit( 1 ); |
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} |
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// Minify one file |
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$this->minify( $this->getArg( 0 ), $this->getOption( 'outfile' ) ); |
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return; |
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} |
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$outDir = $this->getOption( 'outdir', false ); |
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foreach ( $this->mArgs as $arg ) { |
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$inPath = realpath( $arg ); |
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$inName = basename( $inPath ); |
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$inDir = dirname( $inPath ); |
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if ( strpos( $inName, '.min.' ) !== false ) { |
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$this->error( "Skipping $inName\n" ); |
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continue; |
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} |
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if ( !file_exists( $inPath ) ) { |
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$this->error( "File does not exist: $arg", true ); |
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} |
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$extension = $this->getExtension( $inName ); |
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$outName = substr( $inName, 0, -strlen( $extension ) ) . 'min.' . $extension; |
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if ( $outDir === false ) { |
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$outPath = $inDir . '/' . $outName; |
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} else { |
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$outPath = $outDir . '/' . $outName; |
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} |
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$this->minify( $inPath, $outPath ); |
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} |
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} |
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public function getExtension( $fileName ) { |
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$dotPos = strrpos( $fileName, '.' ); |
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if ( $dotPos === false ) { |
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$this->error( "No file extension, cannot determine type: $fileName" ); |
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exit( 1 ); |
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} |
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return substr( $fileName, $dotPos + 1 ); |
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} |
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public function minify( $inPath, $outPath ) { |
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$extension = $this->getExtension( $inPath ); |
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$this->output( basename( $inPath ) . ' -> ' . basename( $outPath ) . '...' ); |
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$inText = file_get_contents( $inPath ); |
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if ( $inText === false ) { |
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$this->error( "Unable to open file $inPath for reading." ); |
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exit( 1 ); |
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} |
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$outFile = fopen( $outPath, 'w' ); |
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if ( !$outFile ) { |
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$this->error( "Unable to open file $outPath for writing." ); |
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exit( 1 ); |
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} |
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switch ( $extension ) { |
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case 'js': |
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$outText = JavaScriptMinifier::minify( $inText ); |
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break; |
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case 'css': |
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$outText = CSSMin::minify( $inText ); |
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break; |
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default: |
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$this->error( "No minifier defined for extension \"$extension\"" ); |
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} |
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fwrite( $outFile, $outText ); |
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fclose( $outFile ); |
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$this->output( " ok\n" ); |
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} |
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} |
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$maintClass = 'MinifyScript'; |
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require_once RUN_MAINTENANCE_IF_MAIN; |
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wikimedia /
mediawiki
Loading history...
The PSR-1: Basic Coding Standard recommends that a file should either introduce new symbols, that is classes, functions, constants or similar, or have side effects. Side effects are anything that executes logic, like for example printing output, changing ini settings or writing to a file.
The idea behind this recommendation is that merely auto-loading a class should not change the state of an application. It also promotes a cleaner style of programming and makes your code less prone to errors, because the logic is not spread out all over the place.
To learn more about the PSR-1, please see the PHP-FIG site on the PSR-1.