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<?php
/**
* Minify a file or set of files
*/
require_once( dirname( __FILE__ ) . '/Maintenance.php' );
class MinifyScript extends Maintenance {
var $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->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 ) {
echo "Skipping $inName\n";
continue;
}
if ( !file_exists( $inPath ) ) {
$this->error( "File does not exist: $arg" );
exit( 1 );
}
$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: $arg" );
exit( 1 );
}
return substr( $fileName, $dotPos + 1 );
}
public function minify( $inPath, $outPath ) {
$extension = $this->getExtension( $inPath );
echo 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 = JSMin::minify( $inText );
break;
default:
$this->error( "No minifier defined for extension \"$extension\"" );
}
fwrite( $outFile, $outText );
fclose( $outFile );
echo " ok\n";
}
}
$maintClass = 'MinifyScript';
require_once( DO_MAINTENANCE );
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