Source code for qubesadmin.tools.qvm_tags

#
# The Qubes OS Project, https://www.qubes-os.org/
#
# Copyright (C) 2010-2016  Joanna Rutkowska <[email protected]>
# Copyright (C) 2016       Wojtek Porczyk <[email protected]>
#
# 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-features - 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())