MediaWiki 1.30.2

[autoinstallsdev/mediawiki.git] / maintenance / clearInterwikiCache.php

diff --git a/maintenance/clearInterwikiCache.php b/maintenance/clearInterwikiCache.php
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+++ b/maintenance/clearInterwikiCache.php
@@ -0,0 +1,58 @@
+<?php
+/**
+ * Clear the cache of interwiki prefixes for all local wikis.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @ingroup Maintenance
+ */
+
+require_once __DIR__ . '/Maintenance.php';
+
+/**
+ * Maintenance script to clear the cache of interwiki prefixes for all local wikis.
+ *
+ * @ingroup Maintenance
+ */
+class ClearInterwikiCache extends Maintenance {
+
+       public function __construct() {
+               parent::__construct();
+               $this->addDescription( 'Clear all interwiki links for all languages from the cache' );
+       }
+
+       public function execute() {
+               global $wgLocalDatabases, $wgMemc;
+               $dbr = $this->getDB( DB_REPLICA );
+               $res = $dbr->select( 'interwiki', [ 'iw_prefix' ], false );
+               $prefixes = [];
+               foreach ( $res as $row ) {
+                       $prefixes[] = $row->iw_prefix;
+               }
+
+               foreach ( $wgLocalDatabases as $db ) {
+                       $this->output( "$db..." );
+                       foreach ( $prefixes as $prefix ) {
+                               $wgMemc->delete( "$db:interwiki:$prefix" );
+                       }
+                       $this->output( "done\n" );
+               }
+       }
+}
+
+$maintClass = "ClearInterwikiCache";
+require_once RUN_MAINTENANCE_IF_MAIN;