maintenance/purgeModuleDeps.php

   1 <?php
   2 /**
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  16  * http://www.gnu.org/copyleft/gpl.html
  17  *
  18  * @file
  19  * @ingroup Maintenance
  20  */
  21
  22 use MediaWiki\Maintenance\Maintenance;
  23 use Wikimedia\Rdbms\IDatabase;
  24
  25 // @codeCoverageIgnoreStart
  26 require_once __DIR__ . '/Maintenance.php';
  27 // @codeCoverageIgnoreEnd
  28
  29 /**
  30  * Maintenance script to purge the module_deps database cache table for ResourceLoader.
  31  *
  32  * @ingroup Maintenance
  33  * @ingroup ResourceLoader
  34  */
  35 class PurgeModuleDeps extends Maintenance {
  36         public function __construct() {
  37                 parent::__construct();
  38                 $this->addDescription(
  39                         'Remove all cache entries for ResourceLoader modules from the database' );
  40                 $this->setBatchSize( 500 );
  41         }
  42
  43         public function execute() {
  44                 $this->output( "Cleaning up module_deps table...\n" );
  45
  46                 $dbw = $this->getPrimaryDB();
  47                 $res = $dbw->newSelectQueryBuilder()
  48                         ->select( [ 'md_module', 'md_skin' ] )
  49                         ->from( 'module_deps' )
  50                         ->caller( __METHOD__ )->fetchResultSet();
  51                 $rows = iterator_to_array( $res, false );
  52
  53                 $modDeps = $dbw->tableName( 'module_deps' );
  54                 $i = 1;
  55                 foreach ( array_chunk( $rows, $this->getBatchSize() ) as $chunk ) {
  56                         // WHERE ( mod=A AND skin=A ) OR ( mod=A AND skin=B) ..
  57                         $conds = array_map( static function ( stdClass $row ) use ( $dbw ) {
  58                                 return $dbw->makeList( (array)$row, IDatabase::LIST_AND );
  59                         }, $chunk );
  60                         $conds = $dbw->makeList( $conds, IDatabase::LIST_OR );
  61
  62                         $this->beginTransaction( $dbw, __METHOD__ );
  63                         $dbw->query( "DELETE FROM $modDeps WHERE $conds", __METHOD__ );
  64                         $numRows = $dbw->affectedRows();
  65                         $this->output( "Batch $i: $numRows rows\n" );
  66                         $this->commitTransaction( $dbw, __METHOD__ );
  67
  68                         $i++;
  69                 }
  70
  71                 $this->output( "Done\n" );
  72         }
  73 }
  74
  75 // @codeCoverageIgnoreStart
  76 $maintClass = PurgeModuleDeps::class;
  77 require_once RUN_MAINTENANCE_IF_MAIN;
  78 // @codeCoverageIgnoreEnd