Neos\Flow\Package\PackageManager::movePackage PHP Method

    protected function movePackage($fromAbsolutePath, $toAbsolutePath)
    {
        Files::createDirectoryRecursively($toAbsolutePath);
        Files::copyDirectoryRecursively($fromAbsolutePath, $toAbsolutePath, false, true);
        Files::removeDirectoryRecursively($fromAbsolutePath);
    }