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40 lines
1.2 KiB
40 lines
1.2 KiB
import os
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import zipfile
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from .distribution import Distribution
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class BDist(Distribution):
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def __init__(self, filename, metadata_version=None):
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self.filename = filename
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self.metadata_version = metadata_version
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self.extractMetadata()
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def read(self):
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fqn = os.path.abspath(
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os.path.normpath(self.filename))
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if not os.path.exists(fqn):
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raise ValueError('No such file: %s' % fqn)
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if fqn.endswith('.egg'):
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archive = zipfile.ZipFile(fqn)
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names = archive.namelist()
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def read_file(name):
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return archive.read(name)
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else:
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raise ValueError('Not a known archive format: %s' % fqn)
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try:
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tuples = [x.split('/') for x in names if 'PKG-INFO' in x]
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schwarz = sorted([(len(x), x) for x in tuples])
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for path in [x[1] for x in schwarz]:
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candidate = '/'.join(path)
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data = read_file(candidate)
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if b'Metadata-Version' in data:
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return data
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finally:
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archive.close()
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raise ValueError('No PKG-INFO in archive: %s' % fqn)
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