1 files changed, 122 insertions, 0 deletions
diff --git a/www/wiki/maintenance/runJobs.php b/www/wiki/maintenance/runJobs.php
new file mode 100644
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+++ b/www/wiki/maintenance/runJobs.php
@@ -0,0 +1,122 @@
+<?php
+/**
+ * Run pending jobs.
+ *
+ * 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';
+
+use MediaWiki\Logger\LoggerFactory;
+
+// So extensions (and other code) can check whether they're running in job mode
+define( 'MEDIAWIKI_JOB_RUNNER', true );
+
+/**
+ * Maintenance script that runs pending jobs.
+ *
+ * @ingroup Maintenance
+ */
+class RunJobs extends Maintenance {
+	public function __construct() {
+		parent::__construct();
+		$this->addDescription( 'Run pending jobs' );
+		$this->addOption( 'maxjobs', 'Maximum number of jobs to run', false, true );
+		$this->addOption( 'maxtime', 'Maximum amount of wall-clock time', false, true );
+		$this->addOption( 'type', 'Type of job to run', false, true );
+		$this->addOption( 'procs', 'Number of processes to use', false, true );
+		$this->addOption( 'nothrottle', 'Ignore job throttling configuration', false, false );
+		$this->addOption( 'result', 'Set to "json" to print only a JSON response', false, true );
+		$this->addOption( 'wait', 'Wait for new jobs instead of exiting', false, false );
+	}
+
+	public function memoryLimit() {
+		if ( $this->hasOption( 'memory-limit' ) ) {
+			return parent::memoryLimit();
+		}
+
+		// Don't eat all memory on the machine if we get a bad job.
+		return "150M";
+	}
+
+	public function execute() {
+		if ( $this->hasOption( 'procs' ) ) {
+			$procs = intval( $this->getOption( 'procs' ) );
+			if ( $procs < 1 || $procs > 1000 ) {
+				$this->fatalError( "Invalid argument to --procs" );
+			} elseif ( $procs != 1 ) {
+				$fc = new ForkController( $procs );
+				if ( $fc->start() != 'child' ) {
+					exit( 0 );
+				}
+			}
+		}
+
+		$outputJSON = ( $this->getOption( 'result' ) === 'json' );
+		$wait = $this->hasOption( 'wait' );
+
+		$runner = new JobRunner( LoggerFactory::getInstance( 'runJobs' ) );
+		if ( !$outputJSON ) {
+			$runner->setDebugHandler( [ $this, 'debugInternal' ] );
+		}
+
+		$type = $this->getOption( 'type', false );
+		$maxJobs = $this->getOption( 'maxjobs', false );
+		$maxTime = $this->getOption( 'maxtime', false );
+		$throttle = !$this->hasOption( 'nothrottle' );
+
+		while ( true ) {
+			$response = $runner->run( [
+				'type'     => $type,
+				'maxJobs'  => $maxJobs,
+				'maxTime'  => $maxTime,
+				'throttle' => $throttle,
+			] );
+
+			if ( $outputJSON ) {
+				$this->output( FormatJson::encode( $response, true ) );
+			}
+
+			if (
+				!$wait ||
+				$response['reached'] === 'time-limit' ||
+				$response['reached'] === 'job-limit' ||
+				$response['reached'] === 'memory-limit'
+			) {
+				break;
+			}
+
+			if ( $maxJobs !== false ) {
+				$maxJobs -= count( $response['jobs'] );
+			}
+
+			sleep( 1 );
+		}
+	}
+
+	/**
+	 * @param string $s
+	 */
+	public function debugInternal( $s ) {
+		$this->output( $s );
+	}
+}
+
+$maintClass = RunJobs::class;
+require_once RUN_MAINTENANCE_IF_MAIN;