~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2007 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

"""Transport implementation that doesn't detect clashing renames.

"""

from __future__ import absolute_import

from bzrlib import (

        errors,

        urlutils,

        )

from bzrlib.transport import decorator

class BrokenRenameTransportDecorator(decorator.TransportDecorator):

    """A transport that fails to detect clashing renames"""

    @classmethod

    def _get_url_prefix(self):

        """FakeNFS transports are identified by 'brokenrename+'"""

        return 'brokenrename+'

    def rename(self, rel_from, rel_to):

        """See Transport.rename().

        """

        try:

            if self._decorated.has(rel_to):

                rel_to = urlutils.join(rel_to, urlutils.basename(rel_from))

            self._decorated.rename(rel_from, rel_to)

        except (errors.DirectoryNotEmpty, errors.FileExists), e:

            # absorb the error

            return

def get_test_permutations():

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

    # we don't use this for general testing, only for the tests that

    # specifically want it

    return []