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# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import warnings
from pyfakefs.fake_pathlib import FakePathlibModule
from pyfakefs.fake_scandir import scandir, walk
def legacy_warning(module_name):
msg = (
f"You are using the legacy package '{module_name}' instead of the "
f"built-in module."
"Patching this package will no longer be supported in pyfakefs >= 6"
)
warnings.warn(msg, category=DeprecationWarning)
class FakePathlib2Module(FakePathlibModule):
"""Uses FakeFilesystem to provide a fake pathlib module replacement.
for the `pathlib2` package available on PyPi.
The usage of `pathlib2` is deprecated and will no longer be supported
in future pyfakefs versions.
"""
has_warned = False
def __getattribute__(self, name):
attr = object.__getattribute__(self, name)
if hasattr(attr, "__call__") and not FakePathlib2Module.has_warned:
FakePathlib2Module.has_warned = True
legacy_warning("pathlib2")
return attr
class FakeScanDirModule:
"""Uses FakeFilesystem to provide a fake module replacement
for the `scandir` package available on PyPi.
The usage of the `scandir` package is deprecated and will no longer be supported
in future pyfakefs versions.
You need a fake_filesystem to use this:
`filesystem = fake_filesystem.FakeFilesystem()`
`fake_scandir_module = fake_filesystem.FakeScanDirModule(filesystem)`
"""
@staticmethod
def dir():
"""Return the list of patched function names. Used for patching
functions imported from the module.
"""
return "scandir", "walk"
def __init__(self, filesystem):
self.filesystem = filesystem
has_warned = False
def scandir(self, path="."):
"""Return an iterator of DirEntry objects corresponding to the entries
in the directory given by path.
Args:
path: Path to the target directory within the fake filesystem.
Returns:
an iterator to an unsorted list of os.DirEntry objects for
each entry in path.
Raises:
OSError: if the target is not a directory.
"""
if not self.has_warned:
self.__class__.has_warned = True
legacy_warning("scandir")
return scandir(self.filesystem, path)
def walk(self, top, topdown=True, onerror=None, followlinks=False):
"""Perform a walk operation over the fake filesystem.
Args:
top: The root directory from which to begin walk.
topdown: Determines whether to return the tuples with the root as
the first entry (`True`) or as the last, after all the child
directory tuples (`False`).
onerror: If not `None`, function which will be called to handle the
`os.error` instance provided when `os.listdir()` fails.
followlinks: If `True`, symbolic links are followed.
Yields:
(path, directories, nondirectories) for top and each of its
subdirectories. See the documentation for the builtin os module
for further details.
"""
if not self.has_warned:
self.__class__.has_warned = True
legacy_warning("scandir")
return walk(self.filesystem, top, topdown, onerror, followlinks)
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