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comparison lib/python3.8/site-packages/pip/_internal/models/search_scope.py @ 0:9e54283cc701 draft

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"planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
author guerler
date Mon, 27 Jul 2020 03:47:31 -0400
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-1:000000000000 0:9e54283cc701
1 import itertools
2 import logging
3 import os
4 import posixpath
5
6 from pip._vendor.packaging.utils import canonicalize_name
7 from pip._vendor.six.moves.urllib import parse as urllib_parse
8
9 from pip._internal.models.index import PyPI
10 from pip._internal.utils.compat import has_tls
11 from pip._internal.utils.misc import normalize_path, redact_auth_from_url
12 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
13
14 if MYPY_CHECK_RUNNING:
15 from typing import List
16
17
18 logger = logging.getLogger(__name__)
19
20
21 class SearchScope(object):
22
23 """
24 Encapsulates the locations that pip is configured to search.
25 """
26
27 @classmethod
28 def create(
29 cls,
30 find_links, # type: List[str]
31 index_urls, # type: List[str]
32 ):
33 # type: (...) -> SearchScope
34 """
35 Create a SearchScope object after normalizing the `find_links`.
36 """
37 # Build find_links. If an argument starts with ~, it may be
38 # a local file relative to a home directory. So try normalizing
39 # it and if it exists, use the normalized version.
40 # This is deliberately conservative - it might be fine just to
41 # blindly normalize anything starting with a ~...
42 built_find_links = [] # type: List[str]
43 for link in find_links:
44 if link.startswith('~'):
45 new_link = normalize_path(link)
46 if os.path.exists(new_link):
47 link = new_link
48 built_find_links.append(link)
49
50 # If we don't have TLS enabled, then WARN if anyplace we're looking
51 # relies on TLS.
52 if not has_tls():
53 for link in itertools.chain(index_urls, built_find_links):
54 parsed = urllib_parse.urlparse(link)
55 if parsed.scheme == 'https':
56 logger.warning(
57 'pip is configured with locations that require '
58 'TLS/SSL, however the ssl module in Python is not '
59 'available.'
60 )
61 break
62
63 return cls(
64 find_links=built_find_links,
65 index_urls=index_urls,
66 )
67
68 def __init__(
69 self,
70 find_links, # type: List[str]
71 index_urls, # type: List[str]
72 ):
73 # type: (...) -> None
74 self.find_links = find_links
75 self.index_urls = index_urls
76
77 def get_formatted_locations(self):
78 # type: () -> str
79 lines = []
80 if self.index_urls and self.index_urls != [PyPI.simple_url]:
81 lines.append(
82 'Looking in indexes: {}'.format(', '.join(
83 redact_auth_from_url(url) for url in self.index_urls))
84 )
85 if self.find_links:
86 lines.append(
87 'Looking in links: {}'.format(', '.join(
88 redact_auth_from_url(url) for url in self.find_links))
89 )
90 return '\n'.join(lines)
91
92 def get_index_urls_locations(self, project_name):
93 # type: (str) -> List[str]
94 """Returns the locations found via self.index_urls
95
96 Checks the url_name on the main (first in the list) index and
97 use this url_name to produce all locations
98 """
99
100 def mkurl_pypi_url(url):
101 # type: (str) -> str
102 loc = posixpath.join(
103 url,
104 urllib_parse.quote(canonicalize_name(project_name)))
105 # For maximum compatibility with easy_install, ensure the path
106 # ends in a trailing slash. Although this isn't in the spec
107 # (and PyPI can handle it without the slash) some other index
108 # implementations might break if they relied on easy_install's
109 # behavior.
110 if not loc.endswith('/'):
111 loc = loc + '/'
112 return loc
113
114 return [mkurl_pypi_url(url) for url in self.index_urls]