--- /dev/null
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Console\EventListener;
+
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Console\ConsoleEvents;
+use Symfony\Component\Console\Event\ConsoleErrorEvent;
+use Symfony\Component\Console\Event\ConsoleEvent;
+use Symfony\Component\Console\Event\ConsoleTerminateEvent;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+
+/**
+ * @author James Halsall <james.t.halsall@googlemail.com>
+ * @author Robin Chalas <robin.chalas@gmail.com>
+ */
+class ErrorListener implements EventSubscriberInterface
+{
+ private $logger;
+
+ public function __construct(LoggerInterface $logger = null)
+ {
+ $this->logger = $logger;
+ }
+
+ public function onConsoleError(ConsoleErrorEvent $event)
+ {
+ if (null === $this->logger) {
+ return;
+ }
+
+ $error = $event->getError();
+
+ if (!$inputString = $this->getInputString($event)) {
+ return $this->logger->error('An error occurred while using the console. Message: "{message}"', array('exception' => $error, 'message' => $error->getMessage()));
+ }
+
+ $this->logger->error('Error thrown while running command "{command}". Message: "{message}"', array('exception' => $error, 'command' => $inputString, 'message' => $error->getMessage()));
+ }
+
+ public function onConsoleTerminate(ConsoleTerminateEvent $event)
+ {
+ if (null === $this->logger) {
+ return;
+ }
+
+ $exitCode = $event->getExitCode();
+
+ if (0 === $exitCode) {
+ return;
+ }
+
+ if (!$inputString = $this->getInputString($event)) {
+ return $this->logger->debug('The console exited with code "{code}"', array('code' => $exitCode));
+ }
+
+ $this->logger->debug('Command "{command}" exited with code "{code}"', array('command' => $inputString, 'code' => $exitCode));
+ }
+
+ public static function getSubscribedEvents()
+ {
+ return array(
+ ConsoleEvents::ERROR => array('onConsoleError', -128),
+ ConsoleEvents::TERMINATE => array('onConsoleTerminate', -128),
+ );
+ }
+
+ private static function getInputString(ConsoleEvent $event)
+ {
+ $commandName = $event->getCommand() ? $event->getCommand()->getName() : null;
+ $input = $event->getInput();
+
+ if (method_exists($input, '__toString')) {
+ if ($commandName) {
+ return str_replace(array("'$commandName'", "\"$commandName\""), $commandName, (string) $input);
+ }
+
+ return (string) $input;
+ }
+
+ return $commandName;
+ }
+}