Allow calling cron.php with a background job class

Signed-off-by: Julius Härtl <jus@bitgrid.net>

Author: juliusknorr

cron.php

@@ -142,7 +142,8 @@
 		$endTime = time() + 14 * 60;
 
 		$executedJobs = [];
-		while ($job = $jobList->getNext($onlyTimeSensitive)) {
+		$jobClass = isset($argv[1]) ? $argv[1] : null;
+		while ($job = $jobList->getNext($onlyTimeSensitive, $jobClass)) {
 			if (isset($executedJobs[$job->getId()])) {
 				$jobList->unlockJob($job);
 				break;

lib/private/BackgroundJob/JobList.php

@@ -205,7 +205,7 @@ public function getJobs($job, ?int $limit, int $offset): array {
 	/**
 	 * get the next job in the list
 	 */
-	public function getNext(bool $onlyTimeSensitive = false): ?IJob {
+	public function getNext(bool $onlyTimeSensitive = false, string $jobClass = null): ?IJob {
 		$query = $this->connection->getQueryBuilder();
 		$query->select('*')
 			->from('jobs')
@@ -218,6 +218,10 @@ public function getNext(bool $onlyTimeSensitive = false): ?IJob {
 			$query->andWhere($query->expr()->eq('time_sensitive', $query->createNamedParameter(IJob::TIME_SENSITIVE, IQueryBuilder::PARAM_INT)));
 		}
 
+		if ($jobClass) {
+			$query->andWhere($query->expr()->eq('class', $query->createNamedParameter($jobClass)));
+		}
+
 		$update = $this->connection->getQueryBuilder();
 		$update->update('jobs')
 			->set('reserved_at', $update->createNamedParameter($this->timeFactory->getTime()))
@@ -238,7 +242,7 @@ public function getNext(bool $onlyTimeSensitive = false): ?IJob {
 
 			if ($count === 0) {
 				// Background job already executed elsewhere, try again.
-				return $this->getNext($onlyTimeSensitive);
+				return $this->getNext($onlyTimeSensitive, $jobClass);
 			}
 			$job = $this->buildJob($row);
 
@@ -252,7 +256,7 @@ public function getNext(bool $onlyTimeSensitive = false): ?IJob {
 				$reset->executeStatement();
 
 				// Background job from disabled app, try again.
-				return $this->getNext($onlyTimeSensitive);
+				return $this->getNext($onlyTimeSensitive, $jobClass);
 			}
 
 			return $job;

tests/lib/BackgroundJob/DummyJobList.php

@@ -91,7 +91,7 @@ public function getJobs($job, ?int $limit, int $offset): array {
 	/**
 	 * get the next job in the list
 	 */
-	public function getNext(bool $onlyTimeSensitive = false): ?IJob {
+	public function getNext(bool $onlyTimeSensitive = false, string $jobClass = null): ?IJob {
 		if (count($this->jobs) > 0) {
 			if ($this->last < (count($this->jobs) - 1)) {
 				$i = $this->last + 1;