Na}{

File Content: `generate.py`

#!/usr/bin/python3
#
# Copyright (C) 2018 Canonical, Ltd.
# Author: Mathieu Trudel-Lapierre <mathieu.trudel-lapierre@canonical.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 3.
#
# 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/>.

'''netplan generate command line'''

import logging
import os
import sys
import subprocess
import shutil

import netplan.cli.utils as utils


class NetplanGenerate(utils.NetplanCommand):

    def __init__(self):
        super().__init__(command_id='generate',
                         description='Generate backend specific configuration files'
                                     ' from /etc/netplan/*.yaml',
                         leaf=True)

    def run(self):
        self.parser.add_argument('--root-dir',
                                 help='Search for and generate configuration files in this root directory instead of /')
        self.parser.add_argument('--mapping',
                                 help='Display the netplan device ID/backend/interface name mapping and exit.')

        self.func = self.command_generate

        self.parse_args()
        self.run_command()

    def command_generate(self):
        # if we are inside a snap, then call dbus to run netplan apply instead
        if "SNAP" in os.environ:
            # TODO: maybe check if we are inside a classic snap and don't do
            # this if we are in a classic snap?
            busctl = shutil.which("busctl")
            if busctl is None:
                raise RuntimeError("missing busctl utility")  # pragma: nocover
            # XXX: DO NOT TOUCH or change this API call, it is used by snapd to communicate
            #      using core20 netplan binary/client/CLI on core18 base systems. Any change
            #      must be agreed upon with the snapd team, so we don't break support for
            #      base systems running older netplan versions.
            #      https://github.com/snapcore/snapd/pull/10212
            res = subprocess.call([busctl, "call", "--quiet", "--system",
                                   "io.netplan.Netplan",  # the service
                                   "/io/netplan/Netplan",  # the object
                                   "io.netplan.Netplan",  # the interface
                                   "Generate",  # the method
                                   ])

            if res != 0:
                if res == 130:
                    raise PermissionError(
                        "failed to communicate with dbus service")
                else:
                    raise RuntimeError(
                        "failed to communicate with dbus service: error %s" % res)
            else:
                return

        argv = [utils.get_generator_path()]
        if self.root_dir:
            argv += ['--root-dir', self.root_dir]
        if self.mapping:
            argv += ['--mapping', self.mapping]
        logging.debug('command generate: running %s', argv)
        # FIXME: os.execv(argv[0], argv) would be better but fails coverage
        sys.exit(subprocess.call(argv))
Name	Size	Permission
__init__.py	1380 bytes	0644
apply.py	19984 bytes	0644
generate.py	3538 bytes	0644
get.py	2793 bytes	0644
info.py	2490 bytes	0644
ip.py	5906 bytes	0644
migrate.py	20467 bytes	0644
set.py	8909 bytes	0644
sriov_rebind.py	1951 bytes	0644
try_command.py	8186 bytes	0644
File Content: generate.py

File Content: `generate.py`
