# Copyright 2022-2023 ETSI TeraFlowSDN - TFS OSG (https://tfs.etsi.org/)
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


import os

TRUE_VALUES = {'T', 'TRUE', 'YES', '1'}
DEVICE_EMULATED_ONLY = os.environ.get('DEVICE_EMULATED_ONLY')
LOAD_ALL_DEVICE_DRIVERS = (DEVICE_EMULATED_ONLY is None) or (DEVICE_EMULATED_ONLY.upper() not in TRUE_VALUES)