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# Copyright 2022-2024 VyOS maintainers and contributors <maintainers@vyos.io>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this library. If not, see <http://www.gnu.org/licenses/>.
# T4739 refactor, and remove "on" from segment routing from the configuration
from vyos.configtree import ConfigTree
def migrate(config: ConfigTree) -> None:
# Check if ISIS segment routing is configured. Then check if segment
# routing "on" exists, then delete the "on" as it is no longer needed.
# This is for global configuration.
if config.exists(['protocols', 'isis']):
if config.exists(['protocols', 'isis', 'segment-routing']):
if config.exists(['protocols', 'isis', 'segment-routing', 'enable']):
config.delete(['protocols', 'isis', 'segment-routing', 'enable'])
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