Mercurial > repos > shellac > sam_consensus_v3
diff env/lib/python3.9/site-packages/pip/_internal/models/link.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/env/lib/python3.9/site-packages/pip/_internal/models/link.py Mon Mar 22 18:12:50 2021 +0000 @@ -0,0 +1,245 @@ +import os +import posixpath +import re +import urllib.parse + +from pip._internal.utils.filetypes import WHEEL_EXTENSION +from pip._internal.utils.misc import ( + redact_auth_from_url, + split_auth_from_netloc, + splitext, +) +from pip._internal.utils.models import KeyBasedCompareMixin +from pip._internal.utils.typing import MYPY_CHECK_RUNNING +from pip._internal.utils.urls import path_to_url, url_to_path + +if MYPY_CHECK_RUNNING: + from typing import Optional, Tuple, Union + + from pip._internal.index.collector import HTMLPage + from pip._internal.utils.hashes import Hashes + + +class Link(KeyBasedCompareMixin): + """Represents a parsed link from a Package Index's simple URL + """ + + __slots__ = [ + "_parsed_url", + "_url", + "comes_from", + "requires_python", + "yanked_reason", + "cache_link_parsing", + ] + + def __init__( + self, + url, # type: str + comes_from=None, # type: Optional[Union[str, HTMLPage]] + requires_python=None, # type: Optional[str] + yanked_reason=None, # type: Optional[str] + cache_link_parsing=True, # type: bool + ): + # type: (...) -> None + """ + :param url: url of the resource pointed to (href of the link) + :param comes_from: instance of HTMLPage where the link was found, + or string. + :param requires_python: String containing the `Requires-Python` + metadata field, specified in PEP 345. This may be specified by + a data-requires-python attribute in the HTML link tag, as + described in PEP 503. + :param yanked_reason: the reason the file has been yanked, if the + file has been yanked, or None if the file hasn't been yanked. + This is the value of the "data-yanked" attribute, if present, in + a simple repository HTML link. If the file has been yanked but + no reason was provided, this should be the empty string. See + PEP 592 for more information and the specification. + :param cache_link_parsing: A flag that is used elsewhere to determine + whether resources retrieved from this link + should be cached. PyPI index urls should + generally have this set to False, for + example. + """ + + # url can be a UNC windows share + if url.startswith('\\\\'): + url = path_to_url(url) + + self._parsed_url = urllib.parse.urlsplit(url) + # Store the url as a private attribute to prevent accidentally + # trying to set a new value. + self._url = url + + self.comes_from = comes_from + self.requires_python = requires_python if requires_python else None + self.yanked_reason = yanked_reason + + super().__init__(key=url, defining_class=Link) + + self.cache_link_parsing = cache_link_parsing + + def __str__(self): + # type: () -> str + if self.requires_python: + rp = f' (requires-python:{self.requires_python})' + else: + rp = '' + if self.comes_from: + return '{} (from {}){}'.format( + redact_auth_from_url(self._url), self.comes_from, rp) + else: + return redact_auth_from_url(str(self._url)) + + def __repr__(self): + # type: () -> str + return f'<Link {self}>' + + @property + def url(self): + # type: () -> str + return self._url + + @property + def filename(self): + # type: () -> str + path = self.path.rstrip('/') + name = posixpath.basename(path) + if not name: + # Make sure we don't leak auth information if the netloc + # includes a username and password. + netloc, user_pass = split_auth_from_netloc(self.netloc) + return netloc + + name = urllib.parse.unquote(name) + assert name, ( + 'URL {self._url!r} produced no filename'.format(**locals())) + return name + + @property + def file_path(self): + # type: () -> str + return url_to_path(self.url) + + @property + def scheme(self): + # type: () -> str + return self._parsed_url.scheme + + @property + def netloc(self): + # type: () -> str + """ + This can contain auth information. + """ + return self._parsed_url.netloc + + @property + def path(self): + # type: () -> str + return urllib.parse.unquote(self._parsed_url.path) + + def splitext(self): + # type: () -> Tuple[str, str] + return splitext(posixpath.basename(self.path.rstrip('/'))) + + @property + def ext(self): + # type: () -> str + return self.splitext()[1] + + @property + def url_without_fragment(self): + # type: () -> str + scheme, netloc, path, query, fragment = self._parsed_url + return urllib.parse.urlunsplit((scheme, netloc, path, query, None)) + + _egg_fragment_re = re.compile(r'[#&]egg=([^&]*)') + + @property + def egg_fragment(self): + # type: () -> Optional[str] + match = self._egg_fragment_re.search(self._url) + if not match: + return None + return match.group(1) + + _subdirectory_fragment_re = re.compile(r'[#&]subdirectory=([^&]*)') + + @property + def subdirectory_fragment(self): + # type: () -> Optional[str] + match = self._subdirectory_fragment_re.search(self._url) + if not match: + return None + return match.group(1) + + _hash_re = re.compile( + r'(sha1|sha224|sha384|sha256|sha512|md5)=([a-f0-9]+)' + ) + + @property + def hash(self): + # type: () -> Optional[str] + match = self._hash_re.search(self._url) + if match: + return match.group(2) + return None + + @property + def hash_name(self): + # type: () -> Optional[str] + match = self._hash_re.search(self._url) + if match: + return match.group(1) + return None + + @property + def show_url(self): + # type: () -> str + return posixpath.basename(self._url.split('#', 1)[0].split('?', 1)[0]) + + @property + def is_file(self): + # type: () -> bool + return self.scheme == 'file' + + def is_existing_dir(self): + # type: () -> bool + return self.is_file and os.path.isdir(self.file_path) + + @property + def is_wheel(self): + # type: () -> bool + return self.ext == WHEEL_EXTENSION + + @property + def is_vcs(self): + # type: () -> bool + from pip._internal.vcs import vcs + + return self.scheme in vcs.all_schemes + + @property + def is_yanked(self): + # type: () -> bool + return self.yanked_reason is not None + + @property + def has_hash(self): + # type: () -> bool + return self.hash_name is not None + + def is_hash_allowed(self, hashes): + # type: (Optional[Hashes]) -> bool + """ + Return True if the link has a hash and it is allowed. + """ + if hashes is None or not self.has_hash: + return False + # Assert non-None so mypy knows self.hash_name and self.hash are str. + assert self.hash_name is not None + assert self.hash is not None + + return hashes.is_hash_allowed(self.hash_name, hex_digest=self.hash)