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