~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2008 Canonical Ltd

#

# 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

"""Implementation of Transport that never has a smart medium.

This is mainly useful with HTTP transports, which sometimes have a smart medium

and sometimes don't.  By using this decorator, you can force those transports

to never have a smart medium.

"""

from bzrlib import errors

from bzrlib.transport.decorator import TransportDecorator, DecoratorServer

class NoSmartTransportDecorator(TransportDecorator):

    """A decorator for transports that disables get_smart_medium."""

    @classmethod

    def _get_url_prefix(self):

        return 'nosmart+'

    def get_smart_medium(self):

        raise errors.NoSmartMedium(self)

class NoSmartTransportServer(DecoratorServer):

    """Server for the NoSmartTransportDecorator for testing with."""

    def get_decorator_class(self):

        return NoSmartTransportDecorator

def get_test_permutations():

    """Return the permutations to be used in testing."""

    return [(NoSmartTransportDecorator, NoSmartTransportServer)]