maintenance/clearInterwikiCache.php

   1 <?php
   2 /**
   3  * Clear the cache of interwiki prefixes for all local wikis.
   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  */
  23
  24 require_once __DIR__ . '/Maintenance.php';
  25
  26 /**
  27  * Maintenance script to clear the cache of interwiki prefixes for all local wikis.
  28  *
  29  * @ingroup Maintenance
  30  */
  31 class ClearInterwikiCache extends Maintenance {
  32
  33         public function __construct() {
  34                 parent::__construct();
  35                 $this->addDescription( 'Clear all interwiki links for all languages from the cache' );
  36         }
  37
  38         public function execute() {
  39                 global $wgLocalDatabases, $wgMemc;
  40                 $dbr = $this->getDB( DB_REPLICA );
  41                 $res = $dbr->select( 'interwiki', [ 'iw_prefix' ], '', __METHOD__ );
  42                 $prefixes = [];
  43                 foreach ( $res as $row ) {
  44                         $prefixes[] = $row->iw_prefix;
  45                 }
  46
  47                 foreach ( $wgLocalDatabases as $db ) {
  48                         $this->output( "$db..." );
  49                         foreach ( $prefixes as $prefix ) {
  50                                 $wgMemc->delete( "$db:interwiki:$prefix" );
  51                         }
  52                         $this->output( "done\n" );
  53                 }
  54         }
  55 }
  56
  57 $maintClass = ClearInterwikiCache::class;
  58 require_once RUN_MAINTENANCE_IF_MAIN;