/usr/lib/python2.7/dist-packages/bzrlib/transport/fakenfs.py is in python-bzrlib 2.7.0-2ubuntu3.1.
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#
# 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 adapts another transport to look like NFS.
Currently this means that the rename() call will raise ResourceBusy when a
target path is a directory.
To get a fake nfs transport use get_transport('fakenfs+' + real_url)
"""
from __future__ import absolute_import
from stat import S_ISDIR
from bzrlib import (
errors,
urlutils,
)
from bzrlib.transport import decorator
class FakeNFSTransportDecorator(decorator.TransportDecorator):
"""A transport that behaves like NFS, for testing"""
@classmethod
def _get_url_prefix(self):
"""FakeNFS transports are identified by 'fakenfs+'"""
return 'fakenfs+'
def rename(self, rel_from, rel_to):
"""See Transport.rename().
This variation on rename converts DirectoryNotEmpty and FileExists
errors into ResourceBusy if the target is a directory.
"""
try:
self._decorated.rename(rel_from, rel_to)
except (errors.DirectoryNotEmpty, errors.FileExists), e:
# if this is a directory rename, raise
# resourcebusy rather than DirectoryNotEmpty
stat = self._decorated.stat(rel_to)
if S_ISDIR(stat.st_mode):
raise errors.ResourceBusy(rel_to)
else:
raise
def delete(self, relpath):
if urlutils.basename(relpath).startswith('.nfs'):
raise errors.ResourceBusy(self.abspath(relpath))
return self._decorated.delete(relpath)
def get_test_permutations():
"""Return the permutations to be used in testing."""
from bzrlib.tests import test_server
return [(FakeNFSTransportDecorator, test_server.FakeNFSServer),]
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