#!/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 json import re import sys import typing from jinja2 import Template from vyos.utils.process import rc_cmd import vyos.opmode journalctl_command_template = Template(""" --no-hostname --quiet {% if boot %} --boot {% endif %} {% if count %} --lines={{ count }} {% endif %} {% if reverse %} --reverse {% endif %} {% if since %} --since={{ since }} {% endif %} {% if unit %} --unit={{ unit }} {% endif %} {% if utc %} --utc {% endif %} {% if raw %} {# By default show 100 only lines for raw option if count does not set #} {# Protection from parsing the full log by default #} {% if not boot %} --lines={{ '' ~ count if count else '100' }} {% endif %} --no-pager --output=json {% endif %} """) def show(raw: bool, boot: typing.Optional[bool], count: typing.Optional[int], facility: typing.Optional[str], reverse: typing.Optional[bool], utc: typing.Optional[bool], unit: typing.Optional[str]): kwargs = dict(locals()) journalctl_options = journalctl_command_template.render(kwargs) journalctl_options = re.sub(r'\s+', ' ', journalctl_options) rc, output = rc_cmd(f'journalctl {journalctl_options}') if raw: # Each 'journalctl --output json' line is a separate JSON object # So we should return list of dict return [json.loads(line) for line in output.split('\n')] return output if __name__ == '__main__': try: res = vyos.opmode.run(sys.modules[__name__]) if res: print(res) except (ValueError, vyos.opmode.Error) as e: print(e) sys.exit(1)