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#!/usr/bin/python3
# Copyright VyOS maintainers and contributors <maintainers@vyos.io>
#
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library. If not, see <http://www.gnu.org/licenses/>.
import os
import sys
import shlex
import argparse
from vyos.defaults import directories
from vyos.remote import get_remote_config
from vyos.config import Config
from vyos.configtree import ConfigTree
from vyos.configtree import mask_inclusive
from vyos.configtree import merge
from vyos.migrate import ConfigMigrate
from vyos.migrate import ConfigMigrateError
from vyos.load_config import load_explicit
parser = argparse.ArgumentParser()
parser.add_argument('config_file', help='config file to merge from')
parser.add_argument(
'--destructive', action='store_true', help='replace values with those of merge file'
)
parser.add_argument('--paths', nargs='+', help='only merge from listed paths')
parser.add_argument(
'--migrate', action='store_true', help='migrate config file before merge'
)
args = parser.parse_args()
file_name = args.config_file
paths = [shlex.split(s) for s in args.paths] if args.paths else []
configdir = directories['config']
protocols = ['scp', 'sftp', 'http', 'https', 'ftp', 'tftp']
if any(file_name.startswith(f'{x}://') for x in protocols):
file_path = get_remote_config(file_name)
if not file_path:
sys.exit(f'No such file {file_name}')
else:
full_path = os.path.realpath(file_name)
if os.path.isfile(full_path):
file_path = full_path
else:
file_path = os.path.join(configdir, file_name)
if not os.path.isfile(file_path):
sys.exit(f'No such file {file_name}')
if args.migrate:
migrate = ConfigMigrate(file_path)
try:
migrate.run()
except ConfigMigrateError as e:
sys.exit(e)
with open(file_path) as f:
merge_str = f.read()
merge_ct = ConfigTree(merge_str)
if paths:
mask = ConfigTree('')
for p in paths:
mask.set(p)
merge_ct = mask_inclusive(merge_ct, mask)
config = Config()
if config.vyconf_session is not None:
out, err = config.vyconf_session.merge_config(
file_path, destructive=args.destructive
)
if err:
sys.exit(out)
print(out)
else:
session_ct = config.get_config_tree()
merge_res = merge(session_ct, merge_ct, destructive=args.destructive)
load_explicit(merge_res)
if config.session_changed():
print("Merge complete. Use 'commit' to make changes effective.")
else:
print('No configuration changes to commit.')
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