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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 ) {
$dst->push( $batch );
$totalOK += count( $batch );
$batch = array();
$dst->waitForBackups();
}
}
if ( count( $batch ) ) {
$dst->push( $batch );
$totalOK += count( $batch );
$dst->waitForBackups();
}
return array( $total, $totalOK );
}
}
$maintClass = 'CopyJobQueue';
require_once RUN_MAINTENANCE_IF_MAIN;
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