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73 lines
2.3 KiB
73 lines
2.3 KiB
# Copyright 2021 The Meson development team |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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''' |
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This module soly exists to work around a pathlib.resolve bug on |
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certain Windows systems: |
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https://github.com/mesonbuild/meson/issues/7295 |
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https://bugs.python.org/issue31842 |
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It should **never** be used directly. Instead, it is automatically |
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used when `import pathlib` is used. This is achieved by messing with |
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`sys.modules['pathlib']` in mesonmain. |
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Additionally, the sole purpose of this module is to work around a |
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python bug. This only bugfixes to pathlib functions and classes are |
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allowed here. Finally, this file should be removed once all upstream |
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python bugs are fixed and it is OK to tell our users to "just upgrade |
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python". |
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''' |
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import pathlib |
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import os |
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import platform |
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__all__ = [ |
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'PurePath', |
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'PurePosixPath', |
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'PureWindowsPath', |
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'Path', |
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] |
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PurePath = pathlib.PurePath |
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PurePosixPath = pathlib.PurePosixPath |
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PureWindowsPath = pathlib.PureWindowsPath |
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# Only patch on platforms where the bug occurs |
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if platform.system().lower() in {'windows'}: |
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# Can not directly inherit from pathlib.Path because the __new__ |
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# operator of pathlib.Path() returns a {Posix,Windows}Path object. |
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class Path(type(pathlib.Path())): |
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def resolve(self, strict: bool = False) -> 'Path': |
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''' |
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Work around a resolve bug on certain Windows systems: |
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https://github.com/mesonbuild/meson/issues/7295 |
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https://bugs.python.org/issue31842 |
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''' |
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try: |
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return super().resolve(strict=strict) |
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except OSError: |
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return Path(os.path.normpath(self)) |
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else: |
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Path = pathlib.Path |
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PosixPath = pathlib.PosixPath |
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WindowsPath = pathlib.WindowsPath |
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__all__ += [ |
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'PosixPath', |
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'WindowsPath', |
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]
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