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-rw-r--r--maintenance/copyJobQueue.php99
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diff --git a/maintenance/copyJobQueue.php b/maintenance/copyJobQueue.php
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+<?php
+/**
+ * Copy all jobs from one job queue system to another.
+ *
+ * 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
+ */
+
+require_once __DIR__ . '/Maintenance.php';
+
+/**
+ * Copy all jobs from one job queue system to another.
+ * This uses an ad-hoc $wgJobQueueMigrationConfig setting,
+ * which is a map of queue system names to JobQueue::factory() parameters.
+ * The parameters should not have wiki or type settings and thus partial.
+ *
+ * @ingroup Maintenance
+ */
+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;