mirror of https://github.com/pypa/pip
43 lines
1.1 KiB
Python
43 lines
1.1 KiB
Python
import sys
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from pip._vendor.six.moves.urllib import parse as urllib_parse
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from pip._vendor.six.moves.urllib import request as urllib_request
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from pip._internal.utils.typing import MYPY_CHECK_RUNNING
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if MYPY_CHECK_RUNNING:
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from typing import Optional, Text, Union
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def get_url_scheme(url):
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# type: (Union[str, Text]) -> Optional[Text]
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if ':' not in url:
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return None
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return url.split(':', 1)[0].lower()
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def url_to_path(url):
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# type: (str) -> str
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"""
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Convert a file: URL to a path.
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"""
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assert url.startswith('file:'), (
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"You can only turn file: urls into filenames (not %r)" % url)
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_, netloc, path, _, _ = urllib_parse.urlsplit(url)
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if not netloc or netloc == 'localhost':
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# According to RFC 8089, same as empty authority.
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netloc = ''
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elif sys.platform == 'win32':
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# If we have a UNC path, prepend UNC share notation.
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netloc = '\\\\' + netloc
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else:
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raise ValueError(
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'non-local file URIs are not supported on this platform: %r'
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% url
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)
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path = urllib_request.url2pathname(netloc + path)
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return path
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