CleanupRemovedModules

Complexity

Total Complexity

4

Size/Duplication

Total Lines	31
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	3

Importance

Changes

0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	6	1
A	execute()	0	21	3

<?php

For compatibility and reusability of your code, PSR1 recommends that a file should introduce either new symbols (like classes, functions, etc.) or have side-effects (like outputting something, or including other files), but not both at the same time. The first symbol is defined on line 33 and the first side effect is on line 25.

/**
 * Remove cache entries for removed 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 Roan Kattouw
 */

require_once __DIR__ . '/Maintenance.php';

/**
 * Maintenance script to remove cache entries for removed ResourceLoader modules
 * from the database.
 *
 * @ingroup Maintenance
 */
class CleanupRemovedModules extends Maintenance {

	public function __construct() {
		parent::__construct();
		$this->addDescription(
			'Remove cache entries for removed ResourceLoader modules from the database' );
		$this->addOption( 'batchsize', 'Delete rows in batches of this size. Default: 500', false, true );
	}

	public function execute() {
		$dbw = $this->getDB( DB_MASTER );
		$rl = new ResourceLoader( ConfigFactory::getDefaultInstance()->makeConfig( 'main' ) );
		$moduleNames = $rl->getModuleNames();
		$moduleList = implode( ', ', array_map( [ $dbw, 'addQuotes' ], $moduleNames ) );
		$limit = max( 1, intval( $this->getOption( 'batchsize', 500 ) ) );

		$this->output( "Cleaning up module_deps table...\n" );
		$i = 1;
		$modDeps = $dbw->tableName( 'module_deps' );
		do {
			// $dbw->delete() doesn't support LIMIT :(
			$where = $moduleList ? "md_module NOT IN ($moduleList)" : '1=1';
			$dbw->query( "DELETE FROM $modDeps WHERE $where LIMIT $limit", __METHOD__ );
			$numRows = $dbw->affectedRows();
			$this->output( "Batch $i: $numRows rows\n" );
			$i++;
			wfWaitForSlaves();

The function wfWaitForSlaves() has been deprecated with message: since 1.27 Use LBFactory::waitForReplication

		} while ( $numRows > 0 );
		$this->output( "done\n" );
	}
}

$maintClass = "CleanupRemovedModules";
require_once RUN_MAINTENANCE_IF_MAIN;