private function getPathMappingStates(Args $args)
    {
        $states = array(
            PathMappingState::ENABLED => 'enabled',
            PathMappingState::NOT_FOUND => 'not-found',
            PathMappingState::CONFLICT => 'conflict',
        );

        $states = array_filter($states, function ($option) use ($args) {
            return $args->isOptionSet($option);
        });

        return array_keys($states) ?: PathMappingState::all();
    }