diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-08 15:11:26 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-08 15:11:26 +0000 |
commit | fcea19dfd2c426bac0456da850e7c12258e4b9eb (patch) | |
tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /third_party/python/setuptools/pkg_resources/_vendor/importlib_resources/_compat.py | |
parent | Adding upstream version 115.7.0esr. (diff) | |
download | firefox-esr-fcea19dfd2c426bac0456da850e7c12258e4b9eb.tar.xz firefox-esr-fcea19dfd2c426bac0456da850e7c12258e4b9eb.zip |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/python/setuptools/pkg_resources/_vendor/importlib_resources/_compat.py')
-rw-r--r-- | third_party/python/setuptools/pkg_resources/_vendor/importlib_resources/_compat.py | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/third_party/python/setuptools/pkg_resources/_vendor/importlib_resources/_compat.py b/third_party/python/setuptools/pkg_resources/_vendor/importlib_resources/_compat.py new file mode 100644 index 0000000000..8b5b1d280f --- /dev/null +++ b/third_party/python/setuptools/pkg_resources/_vendor/importlib_resources/_compat.py @@ -0,0 +1,108 @@ +# flake8: noqa + +import abc +import os +import sys +import pathlib +from contextlib import suppress +from typing import Union + + +if sys.version_info >= (3, 10): + from zipfile import Path as ZipPath # type: ignore +else: + from ..zipp import Path as ZipPath # type: ignore + + +try: + from typing import runtime_checkable # type: ignore +except ImportError: + + def runtime_checkable(cls): # type: ignore + return cls + + +try: + from typing import Protocol # type: ignore +except ImportError: + Protocol = abc.ABC # type: ignore + + +class TraversableResourcesLoader: + """ + Adapt loaders to provide TraversableResources and other + compatibility. + + Used primarily for Python 3.9 and earlier where the native + loaders do not yet implement TraversableResources. + """ + + def __init__(self, spec): + self.spec = spec + + @property + def path(self): + return self.spec.origin + + def get_resource_reader(self, name): + from . import readers, _adapters + + def _zip_reader(spec): + with suppress(AttributeError): + return readers.ZipReader(spec.loader, spec.name) + + def _namespace_reader(spec): + with suppress(AttributeError, ValueError): + return readers.NamespaceReader(spec.submodule_search_locations) + + def _available_reader(spec): + with suppress(AttributeError): + return spec.loader.get_resource_reader(spec.name) + + def _native_reader(spec): + reader = _available_reader(spec) + return reader if hasattr(reader, 'files') else None + + def _file_reader(spec): + try: + path = pathlib.Path(self.path) + except TypeError: + return None + if path.exists(): + return readers.FileReader(self) + + return ( + # native reader if it supplies 'files' + _native_reader(self.spec) + or + # local ZipReader if a zip module + _zip_reader(self.spec) + or + # local NamespaceReader if a namespace module + _namespace_reader(self.spec) + or + # local FileReader + _file_reader(self.spec) + # fallback - adapt the spec ResourceReader to TraversableReader + or _adapters.CompatibilityFiles(self.spec) + ) + + +def wrap_spec(package): + """ + Construct a package spec with traversable compatibility + on the spec/loader/reader. + + Supersedes _adapters.wrap_spec to use TraversableResourcesLoader + from above for older Python compatibility (<3.10). + """ + from . import _adapters + + return _adapters.SpecLoaderAdapter(package.__spec__, TraversableResourcesLoader) + + +if sys.version_info >= (3, 9): + StrPath = Union[str, os.PathLike[str]] +else: + # PathLike is only subscriptable at runtime in 3.9+ + StrPath = Union[str, "os.PathLike[str]"] |