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search_scope.py
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# The following comment should be removed at some point in the future. # mypy: disallow-untyped-defs=False import itertools import logging import os import posixpath from pip._vendor.packaging.utils import canonicalize_name from pip._vendor.six.moves.urllib import parse as urllib_parse from pip._internal.models.index import PyPI from pip._internal.utils.compat import HAS_TLS from pip._internal.utils.misc import normalize_path, redact_auth_from_url from pip._internal.utils.typing import MYPY_CHECK_RUNNING if MYPY_CHECK_RUNNING: from typing import List logger = logging.getLogger(__name__) class SearchScope(object): """ Encapsulates the locations that pip is configured to search. """ @classmethod def create( cls, find_links, # type: List[str] index_urls, # type: List[str] ): # type: (...) -> SearchScope """ Create a SearchScope object after normalizing the `find_links`. """ # Build find_links. If an argument starts with ~, it may be # a local file relative to a home directory. So try normalizing # it and if it exists, use the normalized version. # This is deliberately conservative - it might be fine just to # blindly normalize anything starting with a ~... built_find_links = [] # type: List[str] for link in find_links: if link.startswith('~'): new_link = normalize_path(link) if os.path.exists(new_link): link = new_link built_find_links.append(link) # If we don't have TLS enabled, then WARN if anyplace we're looking # relies on TLS. if not HAS_TLS: for link in itertools.chain(index_urls, built_find_links): parsed = urllib_parse.urlparse(link) if parsed.scheme == 'https': logger.warning( 'pip is configured with locations that require ' 'TLS/SSL, however the ssl module in Python is not ' 'available.' ) break return cls( find_links=built_find_links, index_urls=index_urls, ) def __init__( self, find_links, # type: List[str] index_urls, # type: List[str] ): # type: (...) -> None self.find_links = find_links self.index_urls = index_urls def get_formatted_locations(self): # type: () -> str lines = [] if self.index_urls and self.index_urls != [PyPI.simple_url]: lines.append( 'Looking in indexes: {}'.format(', '.join( redact_auth_from_url(url) for url in self.index_urls)) ) if self.find_links: lines.append( 'Looking in links: {}'.format(', '.join( redact_auth_from_url(url) for url in self.find_links)) ) return '\n'.join(lines) def get_index_urls_locations(self, project_name): # type: (str) -> List[str] """Returns the locations found via self.index_urls Checks the url_name on the main (first in the list) index and use this url_name to produce all locations """ def mkurl_pypi_url(url): loc = posixpath.join( url, urllib_parse.quote(canonicalize_name(project_name))) # For maximum compatibility with easy_install, ensure the path # ends in a trailing slash. Although this isn't in the spec # (and PyPI can handle it without the slash) some other index # implementations might break if they relied on easy_install's # behavior. if not loc.endswith('/'): loc = loc + '/' return loc return [mkurl_pypi_url(url) for url in self.index_urls]