purgeModuleDeps.php

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<?php
use Wikimedia\Rdbms\IDatabase;
 
// @codeCoverageIgnoreStart
require_once __DIR__ . '/Maintenance.php';
// @codeCoverageIgnoreEnd
 
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