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#!/usr/bin/env python3
#
# Copyright VyOS maintainers and contributors <maintainers@vyos.io>
#
# 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 sys
import logging
from pathlib import Path
from argparse import ArgumentParser
from vyos.compose_config import ComposeConfig
from vyos.compose_config import ComposeConfigError
from vyos.utils.activate import refresh_activation_list
from vyos.utils.activate import get_activation_scripts
from vyos.utils.activate import get_activation
from vyos.utils.activate import set_activation
from vyos.utils.activate import is_active
from vyos.utils.system import load_as_module
from vyos.utils.func import FalseCallable
from vyos.defaults import directories
from vyos.defaults import activation_list
parser = ArgumentParser()
parser.add_argument(
'config_file',
type=str,
help='configuration file to modify with system-specific settings',
)
parser.add_argument('--test-script', type=str, help='test effect of named script')
args = parser.parse_args()
checkpoint_file = '/run/vyos-activate-checkpoint'
log_file = Path(directories['config']).joinpath('vyos-activate.log')
logger = logging.getLogger(__name__)
fh = logging.FileHandler(log_file)
formatter = logging.Formatter('%(message)s')
fh.setFormatter(formatter)
logger.addHandler(fh)
if 'vyos-activate-debug' in Path('/proc/cmdline').read_text():
print(f'\nactivate-debug enabled: file {checkpoint_file}_* on error')
debug = checkpoint_file
logger.setLevel(logging.DEBUG)
else:
debug = None
logger.setLevel(logging.INFO)
def file_ext(file_name: str) -> str:
"""Return an identifier from file name for checkpoint file extension."""
return Path(file_name).stem
refresh_activation_list()
if not Path(activation_list).exists():
logger.error('Missing config activation list!')
sys.exit(1)
script_dir = Path(directories['activate'])
if args.test_script:
script_list = [script_dir.joinpath(args.test_script).stem]
else:
script_list = list(get_activation_scripts())
config_file = args.config_file
config_str = Path(config_file).read_text()
compose = ComposeConfig(config_str, checkpoint_file=debug)
false_call = FalseCallable()
update_config = False
for file in script_list:
if not is_active(file):
continue
logger.info(f'calling {file}')
mod_name = Path(file).stem.replace('-', '_')
mod = load_as_module(mod_name, script_dir.joinpath(f'{file}.py').as_posix())
pre_condition = getattr(mod, 'pre_condition', false_call)
post_condition = getattr(mod, 'post_condition', false_call)
activate = getattr(mod, 'activate', false_call)
if not activate:
logger.error(f'missing activate function in {file}')
continue
if not pre_condition or pre_condition():
try:
compose.apply_func(activate)
except ComposeConfigError as e:
if debug:
compose.write(f'{compose.checkpoint_file}_{file_ext(file)}')
logger.error(f'config-activation error in {file}: {e}')
update_config = False
break
if post_condition:
post_condition()
if get_activation(file) == 'once':
set_activation(file, 'off')
update_config = True
if update_config:
compose.write(config_file, with_version=True)
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