/**
* Runs the specified command
* @param Event $event The event
* @return int The command exit code
* @throws
*/
public function run(Event $event = null)
{
if ($event == null) {
//create the event
$event = new Event();
$event->setName(self::EVENT_DISPATCH)->setApplication($this)->setInputStream(new PhpInputStream(STDIN, false))->setOutputStream(new PhpOutputStream(STDOUT, false))->setErrorStream(new PhpOutputStream(STDERR, false))->setOptions(array())->setArguments(array());
//parse the command line arguments
$parser = new ArgvParser();
$parser->parse($event);
}
//start listening for signals
$this->setUpSignalHandler();
try {
//get the command name
if (count($this->commands) > 1) {
//check for the command argument
if (!$event->hasArgument(0)) {
throw new \InvalidArgumentException('Command argument required');
}
//get the name argument
$name = $event->getArgument(0);
//remove the command argument from the arguments
$argv = $event->getArguments();
array_shift($argv);
$event->setArguments($argv);
} else {
$name = null;
}
//get the command to run
if (!($command = $this->getCommand($name))) {
throw new \InvalidArgumentException("Command \"{$name}\" not found.");
}
//set the command
$event->setCommand($command);
//trigger the event
$this->em->trigger($event);
} catch (\Exception $exception) {
//stop listening for signals
$this->tearDownSignalHandler();
//trigger the exception event
try {
$eevent = clone $event;
$eevent->setName(self::EVENT_EXCEPTION)->setException($exception);
$this->em->trigger($eevent);
} catch (\Exception $exception) {
$this->printError($event, "An unhandled exception occurred: {$exception->getMessage()}");
}
return -1;
}
//stop listening for signals
$this->tearDownSignalHandler();
return $event->getExitCode();
}
/**
* @inheritdoc
*/
public function detach(EventManager $em)
{
$em->detach(Application::EVENT_INTERRUPT, array($this, 'interrupt'));
}