wikimedia/mediawiki-core

<?php
/**
 * 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
 */

use Wikimedia\Rdbms\IDatabase;

// @codeCoverageIgnoreStart
require_once __DIR__ . '/Maintenance.php';
// @codeCoverageIgnoreEnd

/**
 * Maintenance script to purge the module_deps database cache table for ResourceLoader.
 *
 * @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->getPrimaryDB();
        $res = $dbw->newSelectQueryBuilder()
            ->select( [ 'md_module', 'md_skin' ] )
            ->from( 'module_deps' )
            ->caller( __METHOD__ )->fetchResultSet();
        $rows = iterator_to_array( $res, false );

        $modDeps = $dbw->tableName( 'module_deps' );
        $i = 1;
        foreach ( array_chunk( $rows, $this->getBatchSize() ) as $chunk ) {
            // WHERE ( mod=A AND skin=A ) OR ( mod=A AND skin=B) ..
            $conds = array_map( static 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" );
    }
}

// @codeCoverageIgnoreStart
$maintClass = PurgeModuleDeps::class;
require_once RUN_MAINTENANCE_IF_MAIN;
// @codeCoverageIgnoreEnd