1 files changed, 58 insertions, 0 deletions
diff --git a/maintenance/clearInterwikiCache.php b/maintenance/clearInterwikiCache.php
new file mode 100644
index 00000000..88769df2
--- /dev/null
+++ 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->mDescription = "Clear all interwiki links for all languages from the cache";
+	}
+
+	public function execute() {
+		global $wgLocalDatabases, $wgMemc;
+		$dbr = wfGetDB( DB_SLAVE );
+		$res = $dbr->select( 'interwiki', array( 'iw_prefix' ), false );
+		$prefixes = array();
+		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 );