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#!/usr/bin/env python3
#
# Copyright (C) 2022 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 os
import json
import jmespath
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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