134 lines
4.5 KiB
Python
134 lines
4.5 KiB
Python
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import itertools
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import logging
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import os
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import posixpath
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import urllib.parse
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from typing import List
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from pip._vendor.packaging.utils import canonicalize_name
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from pip._internal.models.index import PyPI
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from pip._internal.utils.compat import has_tls
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from pip._internal.utils.misc import normalize_path, redact_auth_from_url
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logger = logging.getLogger(__name__)
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class SearchScope:
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"""
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Encapsulates the locations that pip is configured to search.
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"""
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__slots__ = ["find_links", "index_urls", "no_index"]
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@classmethod
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def create(
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cls,
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find_links: List[str],
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index_urls: List[str],
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no_index: bool,
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) -> "SearchScope":
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"""
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Create a SearchScope object after normalizing the `find_links`.
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"""
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# Build find_links. If an argument starts with ~, it may be
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# a local file relative to a home directory. So try normalizing
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# it and if it exists, use the normalized version.
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# This is deliberately conservative - it might be fine just to
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# blindly normalize anything starting with a ~...
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built_find_links: List[str] = []
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for link in find_links:
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if link.startswith("~"):
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new_link = normalize_path(link)
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if os.path.exists(new_link):
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link = new_link
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built_find_links.append(link)
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# If we don't have TLS enabled, then WARN if anyplace we're looking
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# relies on TLS.
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if not has_tls():
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for link in itertools.chain(index_urls, built_find_links):
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parsed = urllib.parse.urlparse(link)
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if parsed.scheme == "https":
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logger.warning(
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"pip is configured with locations that require "
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"TLS/SSL, however the ssl module in Python is not "
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"available."
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)
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break
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return cls(
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find_links=built_find_links,
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index_urls=index_urls,
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no_index=no_index,
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)
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def __init__(
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self,
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find_links: List[str],
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index_urls: List[str],
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no_index: bool,
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) -> None:
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self.find_links = find_links
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self.index_urls = index_urls
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self.no_index = no_index
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def get_formatted_locations(self) -> str:
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lines = []
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redacted_index_urls = []
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if self.index_urls and self.index_urls != [PyPI.simple_url]:
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for url in self.index_urls:
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redacted_index_url = redact_auth_from_url(url)
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# Parse the URL
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purl = urllib.parse.urlsplit(redacted_index_url)
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# URL is generally invalid if scheme and netloc is missing
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# there are issues with Python and URL parsing, so this test
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# is a bit crude. See bpo-20271, bpo-23505. Python doesn't
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# always parse invalid URLs correctly - it should raise
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# exceptions for malformed URLs
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if not purl.scheme and not purl.netloc:
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logger.warning(
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'The index url "%s" seems invalid, please provide a scheme.',
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redacted_index_url,
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)
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redacted_index_urls.append(redacted_index_url)
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lines.append(
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"Looking in indexes: {}".format(", ".join(redacted_index_urls))
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)
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if self.find_links:
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lines.append(
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"Looking in links: {}".format(
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", ".join(redact_auth_from_url(url) for url in self.find_links)
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)
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)
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return "\n".join(lines)
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def get_index_urls_locations(self, project_name: str) -> List[str]:
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"""Returns the locations found via self.index_urls
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Checks the url_name on the main (first in the list) index and
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use this url_name to produce all locations
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"""
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def mkurl_pypi_url(url: str) -> str:
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loc = posixpath.join(
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url, urllib.parse.quote(canonicalize_name(project_name))
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)
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# For maximum compatibility with easy_install, ensure the path
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# ends in a trailing slash. Although this isn't in the spec
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# (and PyPI can handle it without the slash) some other index
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# implementations might break if they relied on easy_install's
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# behavior.
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if not loc.endswith("/"):
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loc = loc + "/"
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return loc
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return [mkurl_pypi_url(url) for url in self.index_urls]
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