You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
bazarr/libs/twine/wheel.py

92 lines
3.0 KiB

# 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,
)
class Wheel(distribution.Distribution):
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")
@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])]
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)
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()