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"""Represents a wheel file and provides access to the various parts of the
name that have meaning.
"""
import re
from pip._vendor.packaging.tags import Tag
from pip._internal.exceptions import InvalidWheelFilename
from pip._internal.utils.typing import MYPY_CHECK_RUNNING
if MYPY_CHECK_RUNNING:
from typing import List
class Wheel(object):
"""A wheel file"""
wheel_file_re = re.compile(
r"""^(?P<namever>(?P<name>.+?)-(?P<ver>.*?))
((-(?P<build>\d[^-]*?))?-(?P<pyver>.+?)-(?P<abi>.+?)-(?P<plat>.+?)
\.whl|\.dist-info)$""",
re.VERBOSE
)
def __init__(self, filename):
# type: (str) -> None
"""
:raises InvalidWheelFilename: when the filename is invalid for a wheel
"""
wheel_info = self.wheel_file_re.match(filename)
if not wheel_info:
raise InvalidWheelFilename(
"{} is not a valid wheel filename.".format(filename)
)
self.filename = filename
self.name = wheel_info.group('name').replace('_', '-')
# we'll assume "_" means "-" due to wheel naming scheme
# (https://github.com/pypa/pip/issues/1150)
self.version = wheel_info.group('ver').replace('_', '-')
self.build_tag = wheel_info.group('build')
self.pyversions = wheel_info.group('pyver').split('.')
self.abis = wheel_info.group('abi').split('.')
self.plats = wheel_info.group('plat').split('.')
# All the tag combinations from this file
self.file_tags = {
Tag(x, y, z) for x in self.pyversions
for y in self.abis for z in self.plats
}
def get_formatted_file_tags(self):
# type: () -> 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):
# type: (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.
"""
return min(tags.index(tag) for tag in self.file_tags if tag in tags)
def supported(self, tags):
# type: (List[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)