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#!/usr/bin/env python3
#
# Copyright (C) 2022-2024 VyOS maintainers and contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or later as
# published by the Free Software Foundation.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import json
from pathlib import Path
from sys import exit
from vyos.config import Config
from vyos.utils.process import call
from vyos import ConfigError
from vyos import airbag
airbag.enable()
base = ['system', 'update-check']
service_name = 'vyos-system-update'
service_conf = Path(f'/run/{service_name}.conf')
motd_file = Path('/run/motd.d/10-vyos-update')
def get_config(config=None):
if config:
conf = config
else:
conf = Config()
if not conf.exists(base):
return None
config = conf.get_config_dict(base, key_mangling=('-', '_'),
get_first_key=True, no_tag_node_value_mangle=True)
return config
def verify(config):
# bail out early - looks like removal from running config
if config is None:
return
if 'url' not in config:
raise ConfigError('URL is required!')
def generate(config):
# bail out early - looks like removal from running config
if config is None:
# Remove old config and return
service_conf.unlink(missing_ok=True)
# MOTD used in /run/motd.d/10-update
motd_file.unlink(missing_ok=True)
return None
# Write configuration file
conf_json = json.dumps(config, indent=4)
service_conf.write_text(conf_json)
return None
def apply(config):
if config:
if 'auto_check' in config:
call(f'systemctl restart {service_name}.service')
else:
call(f'systemctl stop {service_name}.service')
if __name__ == '__main__':
try:
c = get_config()
verify(c)
generate(c)
apply(c)
except ConfigError as e:
print(e)
exit(1)
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