public function probePhpCsFixer()
{
$execFinder = new ExecutableFinder();
$execFinder->setSuffixes(['.bat', '.cmd', '.sh', '']);
$fixer = $execFinder->find('php-cs-fixer', 'php-cs-fixer');
$builder = new ProcessBuilder([$fixer, '--version']);
$builder->setWorkingDirectory(getcwd())->setTimeout(3600);
$process = $builder->getProcess();
$process->run();
if (!$process->isSuccessful()) {
throw new \RuntimeException('Please install php-cs-fixer');
}
return $fixer;
}