copyJobQueue.php

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<?php
require_once __DIR__ . '/Maintenance.php';

class CopyJobQueue extends Maintenance {
    public function __construct() {
        parent::__construct();
        $this->mDescription = "Copy jobs from one queue system to another.";
        $this->addOption( 'src', 'Key to $wgJobQueueMigrationConfig for source', true, true );
        $this->addOption( 'dst', 'Key to $wgJobQueueMigrationConfig for destination', true, true );
        $this->addOption( 'type', 'Types of jobs to copy (use "all" for all)', true, true );
        $this->setBatchSize( 500 );
    }

    public function execute() {
        global $wgJobQueueMigrationConfig;

        $srcKey = $this->getOption( 'src' );
        $dstKey = $this->getOption( 'dst' );

        if ( !isset( $wgJobQueueMigrationConfig[$srcKey] ) ) {
            $this->error( "\$wgJobQueueMigrationConfig not set for '$srcKey'.", 1 );
        } elseif ( !isset( $wgJobQueueMigrationConfig[$dstKey] ) ) {
            $this->error( "\$wgJobQueueMigrationConfig not set for '$dstKey'.", 1 );
        }

        $types = ( $this->getOption( 'type' ) === 'all' )
            ? JobQueueGroup::singleton()->getQueueTypes()
            : array( $this->getOption( 'type' ) );

        foreach ( $types as $type ) {
            $baseConfig = array( 'type' => $type, 'wiki' => wfWikiID() );
            $src = JobQueue::factory( $baseConfig + $wgJobQueueMigrationConfig[$srcKey] );
            $dst = JobQueue::factory( $baseConfig + $wgJobQueueMigrationConfig[$dstKey] );

            list( $total, $totalOK ) = $this->copyJobs( $src, $dst, $src->getAllQueuedJobs() );
            $this->output( "Copied $totalOK/$total queued $type jobs.\n" );

            list( $total, $totalOK ) = $this->copyJobs( $src, $dst, $src->getAllDelayedJobs() );
            $this->output( "Copied $totalOK/$total delayed $type jobs.\n" );
        }
    }

    protected function copyJobs( JobQueue $src, JobQueue $dst, $jobs ) {
        $total = 0;
        $totalOK = 0;
        $batch = array();
        foreach ( $jobs as $job ) {
            ++$total;
            $batch[] = $job;
            if ( count( $batch ) >= $this->mBatchSize ) {
                if ( $dst->push( $batch ) ) {
                    $totalOK += count( $batch );
                }
                $batch = array();
                $dst->waitForBackups();
            }
        }
        if ( count( $batch ) ) {
            if ( $dst->push( $batch ) ) {
                $totalOK += count( $batch );
            }
            $dst->waitForBackups();
        }
        return array( $total, $totalOK );
    }
}

$maintClass = 'CopyJobQueue';
require_once RUN_MAINTENANCE_IF_MAIN;