public static function create(array $config, LoggerInterface $logger = null)
{
if (empty($config)) {
throw new \InvalidArgumentException('Error while creating Deploy Runner, config is empty');
}
if (null === $logger) {
$logger = new NullLogger();
}
$self = new self();
$self->setLogger($logger);
$servers = $self->getServersFromConfig($config);
$steps = $self->getStepsFromConfig($config, $servers);
return new Runner(array_values($steps), $logger);
}
