/**
* Change the current head to a detached state to prevent un-pushable
* modifications affecting the development branch.
*
* @param OutputInterface $output
* @param $library
*/
protected function detachBranch(OutputInterface $output, Library $library)
{
$repository = $library->getRepository($output);
$repository->run('checkout', ['HEAD~0']);
if ($library->getBranch()) {
throw new \LogicException("Error checking out detached HEAD~0 of " . $library->getName());
}
}
