private function updateDistBundles()
    {
        $fs = $this->app['filesystem']->getFilesystem('root');
        $files = [
            '.bolt.yml',
            'composer.json',
            'composer.lock',
            'src/Site/CustomisationExtension.php',
        ];
        foreach ($files as $file) {
            $dist = $fs->getFile($file . '.dist');
            if (!$fs->has($file) && $dist->exists()) {
                $dist->rename($file);
            }
        }
    }