MediaWiki 1.30.2

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

diff --git a/maintenance/purgeModuleDeps.php b/maintenance/purgeModuleDeps.php
new file mode 100644 (file)
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+++ b/maintenance/purgeModuleDeps.php
@@ -0,0 +1,72 @@
+<?php
+/**
+ * Remove all cache entries for ResourceLoader modules from the database.
+ *
+ * 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
+ * @author Timo Tijhof
+ */
+
+use Wikimedia\Rdbms\IDatabase;
+
+require_once __DIR__ . '/Maintenance.php';
+
+/**
+ * Maintenance script to purge the module_deps database cache table.
+ *
+ * @ingroup Maintenance
+ */
+class PurgeModuleDeps extends Maintenance {
+       public function __construct() {
+               parent::__construct();
+               $this->addDescription(
+                       'Remove all cache entries for ResourceLoader modules from the database' );
+               $this->setBatchSize( 500 );
+       }
+
+       public function execute() {
+               $this->output( "Cleaning up module_deps table...\n" );
+
+               $dbw = $this->getDB( DB_MASTER );
+               $res = $dbw->select( 'module_deps', [ 'md_module', 'md_skin' ], [], __METHOD__ );
+               $rows = iterator_to_array( $res, false );
+
+               $modDeps = $dbw->tableName( 'module_deps' );
+               $i = 1;
+               foreach ( array_chunk( $rows, $this->mBatchSize ) as $chunk ) {
+                       // WHERE ( mod=A AND skin=A ) OR ( mod=A AND skin=B) ..
+                       $conds = array_map( function ( stdClass $row ) use ( $dbw ) {
+                               return $dbw->makeList( (array)$row, IDatabase::LIST_AND );
+                       }, $chunk );
+                       $conds = $dbw->makeList( $conds, IDatabase::LIST_OR );
+
+                       $this->beginTransaction( $dbw, __METHOD__ );
+                       $dbw->query( "DELETE FROM $modDeps WHERE $conds", __METHOD__ );
+                       $numRows = $dbw->affectedRows();
+                       $this->output( "Batch $i: $numRows rows\n" );
+                       $this->commitTransaction( $dbw, __METHOD__ );
+
+                       $i++;
+               }
+
+               $this->output( "Done\n" );
+       }
+}
+
+$maintClass = 'PurgeModuleDeps';
+require_once RUN_MAINTENANCE_IF_MAIN;