Autoconfigure EventDispatcher

composer.json

@@ -28,7 +28,8 @@
     "phpstan/phpstan-deprecation-rules": "^0.11.2",
     "phpstan/phpstan-nette": "^0.11.1",
     "phpstan/phpstan-shim": "^0.11.8",
-    "phpstan/phpstan-strict-rules": "^0.11.1"
+    "phpstan/phpstan-strict-rules": "^0.11.1",
+    "symfony/event-dispatcher": "^4.0.0"
   },
   "suggest": {
     "nette/di": "to use ConsoleExtension[CompilerExtension]"

src/DI/ConsoleExtension.php

@@ -8,6 +8,7 @@
 use Nette\DI\CompilerExtension;
 use Nette\DI\Definitions\ServiceDefinition;
 use Nette\DI\Definitions\Statement;
+use Nette\DI\MissingServiceException;
 use Nette\DI\ServiceCreationException;
 use Nette\Http\Request;
 use Nette\Http\UrlScript;
@@ -18,6 +19,7 @@
 use stdClass;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\CommandLoader\CommandLoaderInterface;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 
 /**
  * @property-read stdClass $config
@@ -195,6 +197,14 @@ public function beforeCompile(): void
 			$commandLoaderDef = $builder->getDefinition($this->prefix('commandLoader'));
 			$commandLoaderDef->getFactory()->arguments = ['@container', $commandMap];
 		}
+
+		// Register event dispatcher, if available
+		try {
+			$dispatcherDef = $builder->getDefinitionByType(EventDispatcherInterface::class);
+			$applicationDef->addSetup('setDispatcher', [$dispatcherDef]);
+		} catch (MissingServiceException $e) {
+			// Event dispatcher is not installed, ignore
+		}
 	}
 
 }

tests/cases/Unit/DI/ConsoleExtension.EventDispatcher.phpt

@@ -0,0 +1,51 @@
+<?php declare(strict_types = 1);
+
+use Contributte\Console\Application;
+use Contributte\Console\DI\ConsoleExtension;
+use Nette\DI\Compiler;
+use Nette\DI\Container;
+use Nette\DI\ContainerLoader;
+use Symfony\Component\Console\ConsoleEvents;
+use Symfony\Component\Console\Event\ConsoleErrorEvent;
+use Symfony\Component\Console\Input\ArrayInput;
+use Symfony\Component\Console\Output\NullOutput;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
+use Tester\Assert;
+use Tester\FileMock;
+use Tests\Fixtures\ThrowingCommand;
+
+require_once __DIR__ . '/../../../bootstrap.php';
+
+test(function (): void {
+	$loader = new ContainerLoader(TEMP_DIR, true);
+	$class = $loader->load(function (Compiler $compiler): void {
+		$compiler->addExtension('console', new ConsoleExtension(true));
+		$compiler->loadConfig(FileMock::create('
+		services:
+			- Tests\Fixtures\ThrowingCommand
+			- Symfony\Component\EventDispatcher\EventDispatcher
+		', 'neon'));
+	}, [getmypid(), 1]);
+
+	/** @var Container $container */
+	$container = new $class();
+
+	/** @var Application $application */
+	$application = $container->getByType(Application::class);
+	Assert::type(Application::class, $container->getByType(Application::class));
+
+	/** @var EventDispatcherInterface $dispatcher */
+	$dispatcher = $container->getByType(EventDispatcherInterface::class);
+	$dispatcher->addListener(ConsoleEvents::ERROR, function (ConsoleErrorEvent $event): void {
+		Assert::same(ThrowingCommand::ERROR_MESSAGE, $event->getError()->getMessage());
+	});
+
+	Assert::exception(function () use ($application): void {
+		$application->doRun(
+			new ArrayInput([
+				'command' => 'throwing',
+			]),
+			new NullOutput()
+		);
+	}, Throwable::class, ThrowingCommand::ERROR_MESSAGE);
+});

tests/fixtures/ThrowingCommand.php

@@ -0,0 +1,31 @@
+<?php declare(strict_types = 1);
+
+namespace Tests\Fixtures;
+
+use Exception;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+final class ThrowingCommand extends Command
+{
+
+	/** @var string */
+	protected static $defaultName = 'throwing';
+
+	public const ERROR_MESSAGE = 'I am internally broken.';
+
+	/**
+	 * Configure command
+	 */
+	protected function configure(): void
+	{
+		$this->setName(self::$defaultName);
+	}
+
+	protected function execute(InputInterface $input, OutputInterface $output): void
+	{
+		throw new Exception(self::ERROR_MESSAGE);
+	}
+
+}