76 lines
2.3 KiB
Python
76 lines
2.3 KiB
Python
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import io
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import os
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import tarfile
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import zipfile
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from .distribution import Distribution
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class SDist(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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@classmethod
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def _get_archive(cls, fqn):
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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 zipfile.is_zipfile(fqn):
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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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elif tarfile.is_tarfile(fqn):
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archive = tarfile.TarFile.open(fqn)
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names = archive.getnames()
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def read_file(name):
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return archive.extractfile(name).read()
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else:
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raise ValueError('Not a known archive format: %s' % fqn)
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return archive, names, read_file
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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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archive, names, read_file = self._get_archive(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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class UnpackedSDist(SDist):
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def __init__(self, filename, metadata_version=None):
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if os.path.isdir(filename):
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pass
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elif os.path.isfile(filename):
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filename = os.path.dirname(filename)
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else:
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raise ValueError('No such file: %s' % filename)
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super(UnpackedSDist, self).__init__(
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filename, metadata_version=metadata_version)
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def read(self):
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try:
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pkg_info = os.path.join(self.filename, 'PKG-INFO')
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with io.open(pkg_info, errors='ignore') as f:
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return f.read()
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except Exception as e:
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raise ValueError('Could not load %s as an unpacked sdist: %s'
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% (self.filename, e))
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