/**
* @param InputInterface $input
* @return RootNode
* @throws Exception
*/
protected function getConfig(InputInterface $input) : RootNode
{
$filename = $input->getOption('file');
if ($filename != 'php://stdout' && !file_exists($filename)) {
@touch($filename);
}
if ($filename != 'php://stdout' && file_exists($filename)) {
if (!is_writable($filename)) {
throw new Exception('Given filename is not writable!');
}
}
if ($filename != 'php://stdout' && file_exists($filename)) {
$parser = new Parser();
return $parser->parseFile($filename);
}
return new RootNode();
}
