protected function importPackage($file)
    {
        $extension = strtolower(pathinfo($file, PATHINFO_EXTENSION));

        if ($extension === Packager::FILE_EXTENSION) {
            $this->importOldPackage($file);
        } else {
            $package = new Package($file, $this->option('delete'), $this->option('password'));
            $importer = new Importer($package);
            $importer->import();
            $log = $importer->getLog();
            $this->importLog[] = [
                'file' => $file,
                'log'  => $log
            ];
        }
    }