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| """Represents a wheel file and provides access to the various parts of the | |
| name that have meaning. | |
| """ | |
| import re | |
| from typing import Dict, Iterable, List, Optional | |
| from pip._vendor.packaging.tags import Tag | |
| from pip._vendor.packaging.utils import BuildTag, parse_wheel_filename | |
| from pip._vendor.packaging.utils import ( | |
| InvalidWheelFilename as _PackagingInvalidWheelFilename, | |
| ) | |
| from pip._internal.exceptions import InvalidWheelFilename | |
| from pip._internal.utils.deprecation import deprecated | |
| class Wheel: | |
| """A wheel file""" | |
| legacy_wheel_file_re = re.compile( | |
| r"""^(?P<namever>(?P<name>[^\s-]+?)-(?P<ver>[^\s-]*?)) | |
| ((-(?P<build>\d[^-]*?))?-(?P<pyver>[^\s-]+?)-(?P<abi>[^\s-]+?)-(?P<plat>[^\s-]+?) | |
| \.whl|\.dist-info)$""", | |
| re.VERBOSE, | |
| ) | |
| def __init__(self, filename: str) -> None: | |
| self.filename = filename | |
| # To make mypy happy specify type hints that can come from either | |
| # parse_wheel_filename or the legacy_wheel_file_re match. | |
| self.name: str | |
| self._build_tag: Optional[BuildTag] = None | |
| try: | |
| wheel_info = parse_wheel_filename(filename) | |
| self.name, _version, self._build_tag, self.file_tags = wheel_info | |
| self.version = str(_version) | |
| except _PackagingInvalidWheelFilename as e: | |
| # Check if the wheel filename is in the legacy format | |
| legacy_wheel_info = self.legacy_wheel_file_re.match(filename) | |
| if not legacy_wheel_info: | |
| raise InvalidWheelFilename(e.args[0]) from None | |
| deprecated( | |
| reason=( | |
| f"Wheel filename {filename!r} is not correctly normalised. " | |
| "Future versions of pip will raise the following error:\n" | |
| f"{e.args[0]}\n\n" | |
| ), | |
| replacement=( | |
| "to rename the wheel to use a correctly normalised " | |
| "name (this may require updating the version in " | |
| "the project metadata)" | |
| ), | |
| gone_in="25.3", | |
| issue=12938, | |
| ) | |
| self.name = legacy_wheel_info.group("name").replace("_", "-") | |
| self.version = legacy_wheel_info.group("ver").replace("_", "-") | |
| # Generate the file tags from the legacy wheel filename | |
| pyversions = legacy_wheel_info.group("pyver").split(".") | |
| abis = legacy_wheel_info.group("abi").split(".") | |
| plats = legacy_wheel_info.group("plat").split(".") | |
| self.file_tags = frozenset( | |
| Tag(interpreter=py, abi=abi, platform=plat) | |
| for py in pyversions | |
| for abi in abis | |
| for plat in plats | |
| ) | |
| def build_tag(self) -> BuildTag: | |
| if self._build_tag is not None: | |
| return self._build_tag | |
| # Parse the build tag from the legacy wheel filename | |
| legacy_wheel_info = self.legacy_wheel_file_re.match(self.filename) | |
| assert legacy_wheel_info is not None, "guaranteed by filename validation" | |
| build_tag = legacy_wheel_info.group("build") | |
| match = re.match(r"^(\d+)(.*)$", build_tag) | |
| assert match is not None, "guaranteed by filename validation" | |
| build_tag_groups = match.groups() | |
| self._build_tag = (int(build_tag_groups[0]), build_tag_groups[1]) | |
| return self._build_tag | |
| def get_formatted_file_tags(self) -> List[str]: | |
| """Return the wheel's tags as a sorted list of strings.""" | |
| return sorted(str(tag) for tag in self.file_tags) | |
| def support_index_min(self, tags: List[Tag]) -> int: | |
| """Return the lowest index that one of the wheel's file_tag combinations | |
| achieves in the given list of supported tags. | |
| For example, if there are 8 supported tags and one of the file tags | |
| is first in the list, then return 0. | |
| :param tags: the PEP 425 tags to check the wheel against, in order | |
| with most preferred first. | |
| :raises ValueError: If none of the wheel's file tags match one of | |
| the supported tags. | |
| """ | |
| try: | |
| return next(i for i, t in enumerate(tags) if t in self.file_tags) | |
| except StopIteration: | |
| raise ValueError() | |
| def find_most_preferred_tag( | |
| self, tags: List[Tag], tag_to_priority: Dict[Tag, int] | |
| ) -> int: | |
| """Return the priority of the most preferred tag that one of the wheel's file | |
| tag combinations achieves in the given list of supported tags using the given | |
| tag_to_priority mapping, where lower priorities are more-preferred. | |
| This is used in place of support_index_min in some cases in order to avoid | |
| an expensive linear scan of a large list of tags. | |
| :param tags: the PEP 425 tags to check the wheel against. | |
| :param tag_to_priority: a mapping from tag to priority of that tag, where | |
| lower is more preferred. | |
| :raises ValueError: If none of the wheel's file tags match one of | |
| the supported tags. | |
| """ | |
| return min( | |
| tag_to_priority[tag] for tag in self.file_tags if tag in tag_to_priority | |
| ) | |
| def supported(self, tags: Iterable[Tag]) -> bool: | |
| """Return whether the wheel is compatible with one of the given tags. | |
| :param tags: the PEP 425 tags to check the wheel against. | |
| """ | |
| return not self.file_tags.isdisjoint(tags) | |