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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 argparse
import json
import jmespath
from pathlib import Path
from sys import exit
from time import sleep
from vyos.util import call
import vyos.version
motd_file = Path('/run/motd.d/10-vyos-update')
if __name__ == '__main__':
# Parse command arguments and get config
parser = argparse.ArgumentParser()
parser.add_argument('-c',
'--config',
action='store',
help='Path to system-update-check configuration',
required=True,
type=Path)
args = parser.parse_args()
try:
config_path = Path(args.config)
config = json.loads(config_path.read_text())
except Exception as err:
print(
f'Configuration file "{config_path}" does not exist or malformed: {err}'
)
exit(1)
url_json = config.get('url')
local_data = vyos.version.get_full_version_data()
local_version = local_data.get('version')
while True:
remote_data = vyos.version.get_remote_version(url_json)
if remote_data:
url = jmespath.search('[0].url', remote_data)
remote_version = jmespath.search('[0].version', remote_data)
if local_version != remote_version and remote_version:
call(f'wall -n "Update available: {remote_version} \nUpdate URL: {url}"')
# MOTD used in /run/motd.d/10-update
motd_file.parent.mkdir(exist_ok=True)
motd_file.write_text(f'---\n'
f'Current version: {local_version}\n'
f'Update available: \033[1;34m{remote_version}\033[0m\n'
f'---\n')
# Check every 12 hours
sleep(43200)
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