Source code for qubesadmin.tools.qvm_tags
#
# The Qubes OS Project, https://www.qubes-os.org/
#
# Copyright (C) 2010-2016 Joanna Rutkowska <joanna@invisiblethingslab.com>
# Copyright (C) 2016 Wojtek Porczyk <woju@invisiblethingslab.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; either version 2 of the License, or
# (at your option) any later version.
#
# 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, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
'''qvm-tags - Manage domain's tags'''
from __future__ import print_function
import sys
import qubesadmin
import qubesadmin.exc
import qubesadmin.tools
[docs]
def mode_query(args):
'''Query/list tags'''
if not hasattr(args, 'tag') or args.tag is None:
# list
tags = list(sorted(args.domains[0].tags))
if tags:
print('\n'.join(tags))
else:
# real query
if args.tag not in args.domains[0].tags:
return 1
print(args.tag)
return 0
[docs]
def mode_add(args):
'''Add tag'''
for tag in args.tag:
args.domains[0].tags.add(tag)
return 0
[docs]
def mode_del(args):
'''Delete tag'''
for tag in args.tag:
args.domains[0].tags.discard(tag)
return 0
[docs]
def get_parser():
''' Return qvm-tags tool command line parser '''
parser = qubesadmin.tools.QubesArgumentParser(
vmname_nargs=1,
description='manage domain\'s tags')
parser.register('action', 'parsers',
qubesadmin.tools.AliasedSubParsersAction)
sub_parsers = parser.add_subparsers(
title='commands',
description="For more information see qvm-tags command -h",
dest='command')
list_parser = sub_parsers.add_parser('list', aliases=('ls', 'l'),
help='list tags')
list_parser.add_argument('tag', nargs='?',
action='store', default=None)
list_parser.set_defaults(func=mode_query)
add_parser = sub_parsers.add_parser('add', aliases=('a', 'set'),
help='add tag')
add_parser.add_argument('tag', nargs='+',
action='store')
add_parser.set_defaults(func=mode_add)
del_parser = sub_parsers.add_parser('del', aliases=('d', 'unset', 'u'),
help='add tag')
del_parser.add_argument('tag', nargs=1,
action='store')
del_parser.set_defaults(func=mode_del)
parser.set_defaults(func=mode_query)
return parser
[docs]
def main(args=None, app=None):
'''Main routine of :program:`qvm-tags`.
:param list args: Optional arguments to override those delivered from \
command line.
'''
parser = get_parser()
args = parser.parse_args(args, app=app)
try:
return args.func(args)
except qubesadmin.exc.QubesException as e:
parser.error_runtime(e)
if __name__ == '__main__':
sys.exit(main())