maintenance/purgeModuleDeps.php

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