Source code for twine.wheel

# Copyright 2013 Donald Stufft
#
# 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
#
# https://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 io
import os
import re
import zipfile
from typing import List, Optional

from pkginfo import distribution

from twine import exceptions

# Monkeypatch Metadata 2.0 support
distribution.HEADER_ATTRS_2_0 = distribution.HEADER_ATTRS_1_2
distribution.HEADER_ATTRS.update({"2.0": distribution.HEADER_ATTRS_2_0})


wheel_file_re = re.compile(
    r"""^(?P<namever>(?P<name>.+?)(-(?P<ver>\d.+?))?)
        ((-(?P<build>\d.*?))?-(?P<pyver>.+?)-(?P<abi>.+?)-(?P<plat>.+?)
        \.whl|\.dist-info)$""",
    re.VERBOSE,
)


[docs]class Wheel(distribution.Distribution):
[docs] def __init__(self, filename: str, metadata_version: Optional[str] = None) -> None: self.filename = filename self.basefilename = os.path.basename(self.filename) self.metadata_version = metadata_version self.extractMetadata()
@property def py_version(self) -> str: wheel_info = wheel_file_re.match(self.basefilename) if wheel_info is None: return "any" else: return wheel_info.group("pyver")
[docs] @staticmethod def find_candidate_metadata_files(names: List[str]) -> List[List[str]]: """Filter files that may be METADATA files.""" tuples = [x.split("/") for x in names if "METADATA" in x] return [x[1] for x in sorted([(len(x), x) for x in tuples])]
[docs] def read(self) -> bytes: fqn = os.path.abspath(os.path.normpath(self.filename)) if not os.path.exists(fqn): raise exceptions.InvalidDistribution("No such file: %s" % fqn) if fqn.endswith(".whl"): archive = zipfile.ZipFile(fqn) names = archive.namelist() def read_file(name: str) -> bytes: return archive.read(name) else: raise exceptions.InvalidDistribution( "Not a known archive format for file: %s" % fqn ) try: for path in self.find_candidate_metadata_files(names): candidate = "/".join(path) data = read_file(candidate) if b"Metadata-Version" in data: return data finally: archive.close() raise exceptions.InvalidDistribution("No METADATA in archive: %s" % fqn)
[docs] def parse(self, data: bytes) -> None: super().parse(data) fp = io.StringIO(distribution.must_decode(data)) msg = distribution.parse(fp) self.description = msg.get_payload()