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# Copyright (C) 2009, 2010 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
"""A collection of commonly used 'Features' which bzrlib uses to skip tests."""
import os
import stat
from bzrlib import tests
from bzrlib.symbol_versioning import deprecated_in
class _NotRunningAsRoot(tests.Feature):
def _probe(self):
try:
uid = os.getuid()
except AttributeError:
# If there is no uid, chances are there is no root either
return True
return uid != 0
def feature_name(self):
return 'Not running as root'
not_running_as_root = _NotRunningAsRoot()
apport = tests.ModuleAvailableFeature('apport')
paramiko = tests.ModuleAvailableFeature('paramiko')
pycurl = tests.ModuleAvailableFeature('pycurl')
pywintypes = tests.ModuleAvailableFeature('pywintypes')
subunit = tests.ModuleAvailableFeature('subunit')
class _BackslashDirSeparatorFeature(tests.Feature):
def _probe(self):
try:
os.lstat(os.getcwd() + '\\')
except OSError:
return False
else:
return True
def feature_name(self):
return "Filesystem treats '\\' as a directory separator."
backslashdir_feature = _BackslashDirSeparatorFeature()
class _PosixPermissionsFeature(tests.Feature):
def _probe(self):
def has_perms():
# create temporary file and check if specified perms are maintained.
import tempfile
write_perms = stat.S_IRUSR | stat.S_IWUSR | stat.S_IXUSR
f = tempfile.mkstemp(prefix='bzr_perms_chk_')
fd, name = f
os.close(fd)
os.chmod(name, write_perms)
read_perms = os.stat(name).st_mode & 0777
os.unlink(name)
return (write_perms == read_perms)
return (os.name == 'posix') and has_perms()
def feature_name(self):
return 'POSIX permissions support'
posix_permissions_feature = _PosixPermissionsFeature()
class _ChownFeature(tests.Feature):
"""os.chown is supported"""
def _probe(self):
return os.name == 'posix' and hasattr(os, 'chown')
chown_feature = _ChownFeature()
class ExecutableFeature(tests.Feature):
"""Feature testing whether an executable of a given name is on the PATH."""
def __init__(self, name):
super(ExecutableFeature, self).__init__()
self.name = name
self._path = None
@property
def path(self):
# This is a property, so accessing path ensures _probe was called
self.available()
return self._path
def _probe(self):
path = os.environ.get('PATH')
if path is None:
return False
for d in path.split(os.pathsep):
if d:
f = os.path.join(d, self.name)
if os.access(f, os.X_OK):
self._path = f
return True
return False
def feature_name(self):
return '%s executable' % self.name
bash_feature = ExecutableFeature('bash')
sed_feature = ExecutableFeature('sed')
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