MediaWiki  REL1_22
purgeParserCache.php
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00001 <?php
00025 require __DIR__ . '/Maintenance.php';
00026 
00032 class PurgeParserCache extends Maintenance {
00033     public $lastProgress;
00034 
00035     function __construct() {
00036         parent::__construct();
00037         $this->addDescription( "Remove old objects from the parser cache. " .
00038             "This only works when the parser cache is in an SQL database." );
00039         $this->addOption( 'expiredate', 'Delete objects expiring before this date.', false, true );
00040         $this->addOption( 'age',
00041             'Delete objects created more than this many seconds ago, assuming $wgParserCacheExpireTime ' .
00042                 'has been consistent.',
00043             false, true );
00044     }
00045 
00046     function execute() {
00047         $inputDate = $this->getOption( 'expiredate' );
00048         $inputAge = $this->getOption( 'age' );
00049         if ( $inputDate !== null ) {
00050             $date = wfTimestamp( TS_MW, strtotime( $inputDate ) );
00051         } elseif ( $inputAge !== null ) {
00052             global $wgParserCacheExpireTime;
00053             $date = wfTimestamp( TS_MW, time() + $wgParserCacheExpireTime - intval( $inputAge ) );
00054         } else {
00055             $this->error( "Must specify either --expiredate or --age", 1 );
00056         }
00057 
00058         $english = Language::factory( 'en' );
00059         $this->output( "Deleting objects expiring before " . $english->timeanddate( $date ) . "\n" );
00060 
00061         $pc = wfGetParserCacheStorage();
00062         $success = $pc->deleteObjectsExpiringBefore( $date, array( $this, 'showProgress' ) );
00063         if ( !$success ) {
00064             $this->error( "\nCannot purge this kind of parser cache.", 1 );
00065         }
00066         $this->showProgress( 100 );
00067         $this->output( "\nDone\n" );
00068     }
00069 
00070     function showProgress( $percent ) {
00071         $percentString = sprintf( "%.2f", $percent );
00072         if ( $percentString === $this->lastProgress ) {
00073             return;
00074         }
00075         $this->lastProgress = $percentString;
00076 
00077         $stars = floor( $percent / 2 );
00078         $this->output( '[' . str_repeat( '*', $stars ) . str_repeat( '.', 50 - $stars ) . '] ' .
00079             "$percentString%\r" );
00080 
00081     }
00082 }
00083 $maintClass = 'PurgeParserCache';
00084 require_once RUN_MAINTENANCE_IF_MAIN;