Add command to execute individual job

app/Console/JobCommand.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace Kanboard\Console;
+
+use Kanboard\Core\Queue\JobHandler;
+use SimpleQueue\Job;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * Class JobCommand
+ *
+ * @package Kanboard\Console
+ * @author  Frederic Guillot
+ */
+class JobCommand extends BaseCommand
+{
+    protected function configure()
+    {
+        $this
+            ->setName('job')
+            ->setDescription('Execute individual job (read payload from stdin)')
+        ;
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $payload = fgets(STDIN);
+
+        $job = new Job();
+        $job->unserialize($payload);
+
+        JobHandler::getInstance($this->container)->executeJob($job);
+    }
+}

app/Core/Queue/QueueManager.php

@@ -64,7 +64,7 @@ class QueueManager extends Base
     public function listen()
     {
         if ($this->queue === null) {
-            throw new LogicException('No queue driver defined!');
+            throw new LogicException('No queue driver defined or unable to connect to broker!');
         }
 
         while ($job = $this->queue->pull()) {

app/ServiceProvider/CommandProvider.php

@@ -5,6 +5,7 @@ namespace Kanboard\ServiceProvider;
 use Kanboard\Console\CronjobCommand;
 use Kanboard\Console\DatabaseMigrationCommand;
 use Kanboard\Console\DatabaseVersionCommand;
+use Kanboard\Console\JobCommand;
 use Kanboard\Console\LocaleComparatorCommand;
 use Kanboard\Console\LocaleSyncCommand;
 use Kanboard\Console\PluginInstallCommand;
@@ -52,6 +53,7 @@ class CommandProvider implements ServiceProviderInterface
         $application->add(new TaskTriggerCommand($container));
         $application->add(new CronjobCommand($container));
         $application->add(new WorkerCommand($container));
+        $application->add(new JobCommand($container));
         $application->add(new ResetPasswordCommand($container));
         $application->add(new ResetTwoFactorCommand($container));
         $application->add(new PluginUpgradeCommand($container));