Mercurial > repos > guerler > springsuite

annotate planemo/lib/python3.7/site-packages/pip/_internal/index.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
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1
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1 """Routines related to PyPI, indexes"""
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2 from __future__ import absolute_import
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3
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4 import cgi
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5 import itertools
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6 import logging
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7 import mimetypes
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8 import os
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9 import re
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10
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11 from pip._vendor import html5lib, requests, six
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12 from pip._vendor.distlib.compat import unescape
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13 from pip._vendor.packaging import specifiers
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14 from pip._vendor.packaging.utils import canonicalize_name
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15 from pip._vendor.packaging.version import parse as parse_version
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16 from pip._vendor.requests.exceptions import HTTPError, RetryError, SSLError
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17 from pip._vendor.six.moves.urllib import parse as urllib_parse
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18 from pip._vendor.six.moves.urllib import request as urllib_request
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19
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20 from pip._internal.download import is_url, url_to_path
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21 from pip._internal.exceptions import (
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22 BestVersionAlreadyInstalled, DistributionNotFound, InvalidWheelFilename,
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23 UnsupportedWheel,
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24 )
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25 from pip._internal.models.candidate import InstallationCandidate
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26 from pip._internal.models.format_control import FormatControl
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27 from pip._internal.models.link import Link
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28 from pip._internal.models.selection_prefs import SelectionPreferences
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29 from pip._internal.models.target_python import TargetPython
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30 from pip._internal.utils.compat import ipaddress
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31 from pip._internal.utils.logging import indent_log
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32 from pip._internal.utils.misc import (
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33 ARCHIVE_EXTENSIONS, SUPPORTED_EXTENSIONS, WHEEL_EXTENSION, path_to_url,
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34 redact_password_from_url,
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35 )
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36 from pip._internal.utils.packaging import check_requires_python
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37 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
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38 from pip._internal.wheel import Wheel
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39
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40 if MYPY_CHECK_RUNNING:
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41 from logging import Logger
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42 from typing import (
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43 Any, Callable, FrozenSet, Iterable, Iterator, List, MutableMapping,
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44 Optional, Sequence, Set, Text, Tuple, Union,
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45 )
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46 import xml.etree.ElementTree
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47 from pip._vendor.packaging.version import _BaseVersion
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48 from pip._vendor.requests import Response
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49 from pip._internal.models.search_scope import SearchScope
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50 from pip._internal.req import InstallRequirement
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51 from pip._internal.download import PipSession
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52 from pip._internal.pep425tags import Pep425Tag
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53 from pip._internal.utils.hashes import Hashes
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54
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55 BuildTag = Tuple[Any, ...] # either empty tuple or Tuple[int, str]
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56 CandidateSortingKey = (
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57 Tuple[int, int, int, _BaseVersion, BuildTag, Optional[int]]
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58 )
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59 HTMLElement = xml.etree.ElementTree.Element
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60 SecureOrigin = Tuple[str, str, Optional[str]]
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61
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62
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63 __all__ = ['FormatControl', 'FoundCandidates', 'PackageFinder']
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64
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65
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66 SECURE_ORIGINS = [
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67 # protocol, hostname, port
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68 # Taken from Chrome's list of secure origins (See: http://bit.ly/1qrySKC)
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69 ("https", "*", "*"),
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70 ("*", "localhost", "*"),
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71 ("*", "127.0.0.0/8", "*"),
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72 ("*", "::1/128", "*"),
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73 ("file", "*", None),
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74 # ssh is always secure.
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75 ("ssh", "*", "*"),
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76 ] # type: List[SecureOrigin]
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77
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78
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79 logger = logging.getLogger(__name__)
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80
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81
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82 def _match_vcs_scheme(url):
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83 # type: (str) -> Optional[str]
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84 """Look for VCS schemes in the URL.
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85
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86 Returns the matched VCS scheme, or None if there's no match.
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87 """
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88 from pip._internal.vcs import vcs
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89 for scheme in vcs.schemes:
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90 if url.lower().startswith(scheme) and url[len(scheme)] in '+:':
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91 return scheme
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92 return None
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93
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94
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95 def _is_url_like_archive(url):
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96 # type: (str) -> bool
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97 """Return whether the URL looks like an archive.
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98 """
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99 filename = Link(url).filename
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100 for bad_ext in ARCHIVE_EXTENSIONS:
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101 if filename.endswith(bad_ext):
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102 return True
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103 return False
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104
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105
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106 class _NotHTML(Exception):
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107 def __init__(self, content_type, request_desc):
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108 # type: (str, str) -> None
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109 super(_NotHTML, self).__init__(content_type, request_desc)
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110 self.content_type = content_type
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111 self.request_desc = request_desc
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112
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113
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114 def _ensure_html_header(response):
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115 # type: (Response) -> None
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116 """Check the Content-Type header to ensure the response contains HTML.
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117
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118 Raises `_NotHTML` if the content type is not text/html.
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119 """
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120 content_type = response.headers.get("Content-Type", "")
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121 if not content_type.lower().startswith("text/html"):
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122 raise _NotHTML(content_type, response.request.method)
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123
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124
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125 class _NotHTTP(Exception):
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126 pass
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127
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128
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129 def _ensure_html_response(url, session):
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130 # type: (str, PipSession) -> None
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131 """Send a HEAD request to the URL, and ensure the response contains HTML.
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132
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133 Raises `_NotHTTP` if the URL is not available for a HEAD request, or
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134 `_NotHTML` if the content type is not text/html.
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135 """
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136 scheme, netloc, path, query, fragment = urllib_parse.urlsplit(url)
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137 if scheme not in {'http', 'https'}:
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138 raise _NotHTTP()
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139
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140 resp = session.head(url, allow_redirects=True)
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141 resp.raise_for_status()
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142
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143 _ensure_html_header(resp)
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144
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145
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146 def _get_html_response(url, session):
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147 # type: (str, PipSession) -> Response
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148 """Access an HTML page with GET, and return the response.
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149
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150 This consists of three parts:
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151
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152 1. If the URL looks suspiciously like an archive, send a HEAD first to
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153 check the Content-Type is HTML, to avoid downloading a large file.
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154 Raise `_NotHTTP` if the content type cannot be determined, or
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155 `_NotHTML` if it is not HTML.
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156 2. Actually perform the request. Raise HTTP exceptions on network failures.
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157 3. Check the Content-Type header to make sure we got HTML, and raise
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158 `_NotHTML` otherwise.
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159 """
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160 if _is_url_like_archive(url):
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161 _ensure_html_response(url, session=session)
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162
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163 logger.debug('Getting page %s', redact_password_from_url(url))
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164
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165 resp = session.get(
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166 url,
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167 headers={
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168 "Accept": "text/html",
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169 # We don't want to blindly returned cached data for
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170 # /simple/, because authors generally expecting that
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171 # twine upload && pip install will function, but if
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172 # they've done a pip install in the last ~10 minutes
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173 # it won't. Thus by setting this to zero we will not
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174 # blindly use any cached data, however the benefit of
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175 # using max-age=0 instead of no-cache, is that we will
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176 # still support conditional requests, so we will still
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177 # minimize traffic sent in cases where the page hasn't
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178 # changed at all, we will just always incur the round
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179 # trip for the conditional GET now instead of only
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180 # once per 10 minutes.
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181 # For more information, please see pypa/pip#5670.
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182 "Cache-Control": "max-age=0",
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183 },
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184 )
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185 resp.raise_for_status()
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186
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187 # The check for archives above only works if the url ends with
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188 # something that looks like an archive. However that is not a
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189 # requirement of an url. Unless we issue a HEAD request on every
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190 # url we cannot know ahead of time for sure if something is HTML
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191 # or not. However we can check after we've downloaded it.
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192 _ensure_html_header(resp)
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193
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194 return resp
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195
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196
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197 def _handle_get_page_fail(
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198 link, # type: Link
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199 reason, # type: Union[str, Exception]
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200 meth=None # type: Optional[Callable[..., None]]
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201 ):
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202 # type: (...) -> None
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203 if meth is None:
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204 meth = logger.debug
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205 meth("Could not fetch URL %s: %s - skipping", link, reason)
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206
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207
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208 def _get_html_page(link, session=None):
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209 # type: (Link, Optional[PipSession]) -> Optional[HTMLPage]
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210 if session is None:
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211 raise TypeError(
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212 "_get_html_page() missing 1 required keyword argument: 'session'"
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213 )
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214
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215 url = link.url.split('#', 1)[0]
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216
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217 # Check for VCS schemes that do not support lookup as web pages.
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218 vcs_scheme = _match_vcs_scheme(url)
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219 if vcs_scheme:
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220 logger.debug('Cannot look at %s URL %s', vcs_scheme, link)
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221 return None
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222
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223 # Tack index.html onto file:// URLs that point to directories
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224 scheme, _, path, _, _, _ = urllib_parse.urlparse(url)
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225 if (scheme == 'file' and os.path.isdir(urllib_request.url2pathname(path))):
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226 # add trailing slash if not present so urljoin doesn't trim
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227 # final segment
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228 if not url.endswith('/'):
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229 url += '/'
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230 url = urllib_parse.urljoin(url, 'index.html')
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231 logger.debug(' file: URL is directory, getting %s', url)
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232
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233 try:
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234 resp = _get_html_response(url, session=session)
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235 except _NotHTTP:
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236 logger.debug(
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237 'Skipping page %s because it looks like an archive, and cannot '
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238 'be checked by HEAD.', link,
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239 )
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240 except _NotHTML as exc:
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241 logger.debug(
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242 'Skipping page %s because the %s request got Content-Type: %s',
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243 link, exc.request_desc, exc.content_type,
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244 )
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245 except HTTPError as exc:
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246 _handle_get_page_fail(link, exc)
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247 except RetryError as exc:
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248 _handle_get_page_fail(link, exc)
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249 except SSLError as exc:
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250 reason = "There was a problem confirming the ssl certificate: "
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251 reason += str(exc)
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252 _handle_get_page_fail(link, reason, meth=logger.info)
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253 except requests.ConnectionError as exc:
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254 _handle_get_page_fail(link, "connection error: %s" % exc)
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255 except requests.Timeout:
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256 _handle_get_page_fail(link, "timed out")
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257 else:
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258 return HTMLPage(resp.content, resp.url, resp.headers)
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259 return None
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260
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261
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262 def _check_link_requires_python(
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263 link, # type: Link
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264 version_info, # type: Tuple[int, int, int]
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265 ignore_requires_python=False, # type: bool
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266 ):
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267 # type: (...) -> bool
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268 """
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269 Return whether the given Python version is compatible with a link's
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270 "Requires-Python" value.
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271
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272 :param version_info: A 3-tuple of ints representing the Python
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273 major-minor-micro version to check.
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274 :param ignore_requires_python: Whether to ignore the "Requires-Python"
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275 value if the given Python version isn't compatible.
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276 """
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277 try:
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278 is_compatible = check_requires_python(
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279 link.requires_python, version_info=version_info,
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280 )
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281 except specifiers.InvalidSpecifier:
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282 logger.debug(
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283 "Ignoring invalid Requires-Python (%r) for link: %s",
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284 link.requires_python, link,
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285 )
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286 else:
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287 if not is_compatible:
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288 version = '.'.join(map(str, version_info))
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289 if not ignore_requires_python:
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290 logger.debug(
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291 'Link requires a different Python (%s not in: %r): %s',
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292 version, link.requires_python, link,
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293 )
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294 return False
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295
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296 logger.debug(
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297 'Ignoring failed Requires-Python check (%s not in: %r) '
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298 'for link: %s',
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299 version, link.requires_python, link,
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300 )
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301
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302 return True
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303
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304
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305 class LinkEvaluator(object):
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306
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307 """
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308 Responsible for evaluating links for a particular project.
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309 """
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310
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311 _py_version_re = re.compile(r'-py([123]\.?[0-9]?)$')
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312
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313 # Don't include an allow_yanked default value to make sure each call
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314 # site considers whether yanked releases are allowed. This also causes
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315 # that decision to be made explicit in the calling code, which helps
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316 # people when reading the code.
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317 def __init__(
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318 self,
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319 project_name, # type: str
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320 canonical_name, # type: str
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321 formats, # type: FrozenSet
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322 target_python, # type: TargetPython
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323 allow_yanked, # type: bool
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324 ignore_requires_python=None, # type: Optional[bool]
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325 ):
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326 # type: (...) -> None
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327 """
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328 :param project_name: The user supplied package name.
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329 :param canonical_name: The canonical package name.
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330 :param formats: The formats allowed for this package. Should be a set
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331 with 'binary' or 'source' or both in it.
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332 :param target_python: The target Python interpreter to use when
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333 evaluating link compatibility. This is used, for example, to
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334 check wheel compatibility, as well as when checking the Python
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335 version, e.g. the Python version embedded in a link filename
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336 (or egg fragment) and against an HTML link's optional PEP 503
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337 "data-requires-python" attribute.
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338 :param allow_yanked: Whether files marked as yanked (in the sense
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339 of PEP 592) are permitted to be candidates for install.
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340 :param ignore_requires_python: Whether to ignore incompatible
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341 PEP 503 "data-requires-python" values in HTML links. Defaults
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342 to False.
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343 """
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344 if ignore_requires_python is None:
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345 ignore_requires_python = False
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346
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347 self._allow_yanked = allow_yanked
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348 self._canonical_name = canonical_name
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349 self._ignore_requires_python = ignore_requires_python
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350 self._formats = formats
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351 self._target_python = target_python
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352
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353 self.project_name = project_name
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354
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355 def evaluate_link(self, link):
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356 # type: (Link) -> Tuple[bool, Optional[Text]]
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357 """
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358 Determine whether a link is a candidate for installation.
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359
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360 :return: A tuple (is_candidate, result), where `result` is (1) a
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361 version string if `is_candidate` is True, and (2) if
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362 `is_candidate` is False, an optional string to log the reason
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363 the link fails to qualify.
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364 """
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365 version = None
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366 if link.is_yanked and not self._allow_yanked:
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367 reason = link.yanked_reason or '<none given>'
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368 # Mark this as a unicode string to prevent "UnicodeEncodeError:
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369 # 'ascii' codec can't encode character" in Python 2 when
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370 # the reason contains non-ascii characters.
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371 return (False, u'yanked for reason: {}'.format(reason))
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372
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373 if link.egg_fragment:
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374 egg_info = link.egg_fragment
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375 ext = link.ext
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376 else:
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377 egg_info, ext = link.splitext()
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378 if not ext:
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379 return (False, 'not a file')
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380 if ext not in SUPPORTED_EXTENSIONS:
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381 return (False, 'unsupported archive format: %s' % ext)
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382 if "binary" not in self._formats and ext == WHEEL_EXTENSION:
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383 reason = 'No binaries permitted for %s' % self.project_name
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guerler
parents:
diff changeset
384 return (False, reason)
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guerler
parents:
diff changeset
385 if "macosx10" in link.path and ext == '.zip':
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guerler
parents:
diff changeset
386 return (False, 'macosx10 one')
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guerler
parents:
diff changeset
387 if ext == WHEEL_EXTENSION:
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guerler
parents:
diff changeset
388 try:
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guerler
parents:
diff changeset
389 wheel = Wheel(link.filename)
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guerler
parents:
diff changeset
390 except InvalidWheelFilename:
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guerler
parents:
diff changeset
391 return (False, 'invalid wheel filename')
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guerler
parents:
diff changeset
392 if canonicalize_name(wheel.name) != self._canonical_name:
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guerler
parents:
diff changeset
393 reason = 'wrong project name (not %s)' % self.project_name
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guerler
parents:
diff changeset
394 return (False, reason)
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guerler
parents:
diff changeset
395
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parents:
diff changeset
396 supported_tags = self._target_python.get_tags()
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guerler
parents:
diff changeset
397 if not wheel.supported(supported_tags):
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guerler
parents:
diff changeset
398 # Include the wheel's tags in the reason string to
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guerler
parents:
diff changeset
399 # simplify troubleshooting compatibility issues.
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guerler
parents:
diff changeset
400 file_tags = wheel.get_formatted_file_tags()
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guerler
parents:
diff changeset
401 reason = (
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
402 "none of the wheel's tags match: {}".format(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
403 ', '.join(file_tags)
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guerler
parents:
diff changeset
404 )
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guerler
parents:
diff changeset
405 )
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guerler
parents:
diff changeset
406 return (False, reason)
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guerler
parents:
diff changeset
407
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guerler
parents:
diff changeset
408 version = wheel.version
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guerler
parents:
diff changeset
409
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guerler
parents:
diff changeset
410 # This should be up by the self.ok_binary check, but see issue 2700.
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guerler
parents:
diff changeset
411 if "source" not in self._formats and ext != WHEEL_EXTENSION:
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guerler
parents:
diff changeset
412 return (False, 'No sources permitted for %s' % self.project_name)
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guerler
parents:
diff changeset
413
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guerler
parents:
diff changeset
414 if not version:
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guerler
parents:
diff changeset
415 version = _extract_version_from_fragment(
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guerler
parents:
diff changeset
416 egg_info, self._canonical_name,
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guerler
parents:
diff changeset
417 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
418 if not version:
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guerler
parents:
diff changeset
419 return (
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guerler
parents:
diff changeset
420 False, 'Missing project version for %s' % self.project_name,
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guerler
parents:
diff changeset
421 )
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guerler
parents:
diff changeset
422
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guerler
parents:
diff changeset
423 match = self._py_version_re.search(version)
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guerler
parents:
diff changeset
424 if match:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
425 version = version[:match.start()]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
426 py_version = match.group(1)
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guerler
parents:
diff changeset
427 if py_version != self._target_python.py_version:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
428 return (False, 'Python version is incorrect')
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guerler
parents:
diff changeset
429
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guerler
parents:
diff changeset
430 supports_python = _check_link_requires_python(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
431 link, version_info=self._target_python.py_version_info,
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guerler
parents:
diff changeset
432 ignore_requires_python=self._ignore_requires_python,
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guerler
parents:
diff changeset
433 )
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guerler
parents:
diff changeset
434 if not supports_python:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
435 # Return None for the reason text to suppress calling
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guerler
parents:
diff changeset
436 # _log_skipped_link().
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guerler
parents:
diff changeset
437 return (False, None)
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guerler
parents:
diff changeset
438
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parents:
diff changeset
439 logger.debug('Found link %s, version: %s', link, version)
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guerler
parents:
diff changeset
440
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guerler
parents:
diff changeset
441 return (True, version)
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guerler
parents:
diff changeset
442
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guerler
parents:
diff changeset
443
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guerler
parents:
diff changeset
444 def filter_unallowed_hashes(
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diff changeset
445 candidates, # type: List[InstallationCandidate]
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parents:
diff changeset
446 hashes, # type: Hashes
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parents:
diff changeset
447 project_name, # type: str
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parents:
diff changeset
448 ):
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parents:
diff changeset
449 # type: (...) -> List[InstallationCandidate]
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guerler
parents:
diff changeset
450 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
451 Filter out candidates whose hashes aren't allowed, and return a new
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
452 list of candidates.
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guerler
parents:
diff changeset
453
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guerler
parents:
diff changeset
454 If at least one candidate has an allowed hash, then all candidates with
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guerler
parents:
diff changeset
455 either an allowed hash or no hash specified are returned. Otherwise,
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guerler
parents:
diff changeset
456 the given candidates are returned.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
457
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guerler
parents:
diff changeset
458 Including the candidates with no hash specified when there is a match
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guerler
parents:
diff changeset
459 allows a warning to be logged if there is a more preferred candidate
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guerler
parents:
diff changeset
460 with no hash specified. Returning all candidates in the case of no
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
461 matches lets pip report the hash of the candidate that would otherwise
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
462 have been installed (e.g. permitting the user to more easily update
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
463 their requirements file with the desired hash).
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
464 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
465 if not hashes:
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guerler
parents:
diff changeset
466 logger.debug(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
467 'Given no hashes to check %s links for project %r: '
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
468 'discarding no candidates',
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guerler
parents:
diff changeset
469 len(candidates),
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guerler
parents:
diff changeset
470 project_name,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
471 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
472 # Make sure we're not returning back the given value.
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guerler
parents:
diff changeset
473 return list(candidates)
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guerler
parents:
diff changeset
474
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guerler
parents:
diff changeset
475 matches_or_no_digest = []
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
476 # Collect the non-matches for logging purposes.
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guerler
parents:
diff changeset
477 non_matches = []
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guerler
parents:
diff changeset
478 match_count = 0
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
479 for candidate in candidates:
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guerler
parents:
diff changeset
480 link = candidate.link
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
481 if not link.has_hash:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
482 pass
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
483 elif link.is_hash_allowed(hashes=hashes):
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guerler
parents:
diff changeset
484 match_count += 1
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
485 else:
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parents:
diff changeset
486 non_matches.append(candidate)
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guerler
parents:
diff changeset
487 continue
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
488
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guerler
parents:
diff changeset
489 matches_or_no_digest.append(candidate)
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guerler
parents:
diff changeset
490
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
491 if match_count:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
492 filtered = matches_or_no_digest
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guerler
parents:
diff changeset
493 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
494 # Make sure we're not returning back the given value.
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guerler
parents:
diff changeset
495 filtered = list(candidates)
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guerler
parents:
diff changeset
496
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
497 if len(filtered) == len(candidates):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
498 discard_message = 'discarding no candidates'
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guerler
parents:
diff changeset
499 else:
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guerler
parents:
diff changeset
500 discard_message = 'discarding {} non-matches:\n {}'.format(
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guerler
parents:
diff changeset
501 len(non_matches),
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
502 '\n '.join(str(candidate.link) for candidate in non_matches)
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guerler
parents:
diff changeset
503 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
504
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guerler
parents:
diff changeset
505 logger.debug(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
506 'Checked %s links for project %r against %s hashes '
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
507 '(%s matches, %s no digest): %s',
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guerler
parents:
diff changeset
508 len(candidates),
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
509 project_name,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
510 hashes.digest_count,
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guerler
parents:
diff changeset
511 match_count,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
512 len(matches_or_no_digest) - match_count,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
513 discard_message
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514 )
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515
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516 return filtered
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517
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518
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519 class CandidatePreferences(object):
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520
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521 """
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522 Encapsulates some of the preferences for filtering and sorting
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523 InstallationCandidate objects.
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524 """
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525
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526 def __init__(
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527 self,
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528 prefer_binary=False, # type: bool
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529 allow_all_prereleases=False, # type: bool
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530 ):
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531 # type: (...) -> None
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532 """
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533 :param allow_all_prereleases: Whether to allow all pre-releases.
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534 """
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535 self.allow_all_prereleases = allow_all_prereleases
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536 self.prefer_binary = prefer_binary
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537
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538
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539 class CandidateEvaluator(object):
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540
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541 """
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542 Responsible for filtering and sorting candidates for installation based
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543 on what tags are valid.
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544 """
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545
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546 @classmethod
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547 def create(
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548 cls,
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549 project_name, # type: str
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550 target_python=None, # type: Optional[TargetPython]
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551 prefer_binary=False, # type: bool
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552 allow_all_prereleases=False, # type: bool
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553 specifier=None, # type: Optional[specifiers.BaseSpecifier]
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554 hashes=None, # type: Optional[Hashes]
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555 ):
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556 # type: (...) -> CandidateEvaluator
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557 """Create a CandidateEvaluator object.
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558
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559 :param target_python: The target Python interpreter to use when
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560 checking compatibility. If None (the default), a TargetPython
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561 object will be constructed from the running Python.
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562 :param hashes: An optional collection of allowed hashes.
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563 """
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564 if target_python is None:
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565 target_python = TargetPython()
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566 if specifier is None:
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567 specifier = specifiers.SpecifierSet()
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568
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569 supported_tags = target_python.get_tags()
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570
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571 return cls(
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572 project_name=project_name,
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573 supported_tags=supported_tags,
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574 specifier=specifier,
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575 prefer_binary=prefer_binary,
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576 allow_all_prereleases=allow_all_prereleases,
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577 hashes=hashes,
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578 )
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579
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580 def __init__(
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581 self,
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582 project_name, # type: str
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583 supported_tags, # type: List[Pep425Tag]
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584 specifier, # type: specifiers.BaseSpecifier
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585 prefer_binary=False, # type: bool
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586 allow_all_prereleases=False, # type: bool
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587 hashes=None, # type: Optional[Hashes]
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588 ):
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589 # type: (...) -> None
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590 """
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591 :param supported_tags: The PEP 425 tags supported by the target
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592 Python in order of preference (most preferred first).
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593 """
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594 self._allow_all_prereleases = allow_all_prereleases
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595 self._hashes = hashes
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596 self._prefer_binary = prefer_binary
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597 self._project_name = project_name
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598 self._specifier = specifier
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599 self._supported_tags = supported_tags
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600
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601 def get_applicable_candidates(
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602 self,
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603 candidates, # type: List[InstallationCandidate]
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604 ):
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605 # type: (...) -> List[InstallationCandidate]
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606 """
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607 Return the applicable candidates from a list of candidates.
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608 """
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609 # Using None infers from the specifier instead.
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610 allow_prereleases = self._allow_all_prereleases or None
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611 specifier = self._specifier
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612 versions = {
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613 str(v) for v in specifier.filter(
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614 # We turn the version object into a str here because otherwise
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615 # when we're debundled but setuptools isn't, Python will see
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616 # packaging.version.Version and
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617 # pkg_resources._vendor.packaging.version.Version as different
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618 # types. This way we'll use a str as a common data interchange
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619 # format. If we stop using the pkg_resources provided specifier
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620 # and start using our own, we can drop the cast to str().
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621 (str(c.version) for c in candidates),
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622 prereleases=allow_prereleases,
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623 )
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624 }
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625
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626 # Again, converting version to str to deal with debundling.
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627 applicable_candidates = [
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628 c for c in candidates if str(c.version) in versions
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629 ]
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630
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631 return filter_unallowed_hashes(
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632 candidates=applicable_candidates,
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633 hashes=self._hashes,
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634 project_name=self._project_name,
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635 )
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636
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637 def make_found_candidates(
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638 self,
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639 candidates, # type: List[InstallationCandidate]
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640 ):
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641 # type: (...) -> FoundCandidates
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642 """
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643 Create and return a `FoundCandidates` instance.
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644
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645 :param specifier: An optional object implementing `filter`
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diff changeset
646 (e.g. `packaging.specifiers.SpecifierSet`) to filter applicable
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647 versions.
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648 """
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649 applicable_candidates = self.get_applicable_candidates(candidates)
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650
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651 return FoundCandidates(
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652 candidates,
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653 applicable_candidates=applicable_candidates,
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654 evaluator=self,
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655 )
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656
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657 def _sort_key(self, candidate):
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658 # type: (InstallationCandidate) -> CandidateSortingKey
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659 """
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660 Function to pass as the `key` argument to a call to sorted() to sort
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661 InstallationCandidates by preference.
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662
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663 Returns a tuple such that tuples sorting as greater using Python's
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664 default comparison operator are more preferred.
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665
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666 The preference is as follows:
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667
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668 First and foremost, candidates with allowed (matching) hashes are
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669 always preferred over candidates without matching hashes. This is
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670 because e.g. if the only candidate with an allowed hash is yanked,
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diff changeset
671 we still want to use that candidate.
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672
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673 Second, excepting hash considerations, candidates that have been
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674 yanked (in the sense of PEP 592) are always less preferred than
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diff changeset
675 candidates that haven't been yanked. Then:
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676
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677 If not finding wheels, they are sorted by version only.
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678 If finding wheels, then the sort order is by version, then:
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679 1. existing installs
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680 2. wheels ordered via Wheel.support_index_min(self._supported_tags)
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681 3. source archives
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682 If prefer_binary was set, then all wheels are sorted above sources.
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683
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684 Note: it was considered to embed this logic into the Link
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diff changeset
685 comparison operators, but then different sdist links
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686 with the same version, would have to be considered equal
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687 """
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688 valid_tags = self._supported_tags
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689 support_num = len(valid_tags)
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diff changeset
690 build_tag = tuple() # type: BuildTag
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diff changeset
691 binary_preference = 0
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diff changeset
692 link = candidate.link
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diff changeset
693 if link.is_wheel:
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694 # can raise InvalidWheelFilename
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695 wheel = Wheel(link.filename)
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696 if not wheel.supported(valid_tags):
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diff changeset
697 raise UnsupportedWheel(
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diff changeset
698 "%s is not a supported wheel for this platform. It "
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diff changeset
699 "can't be sorted." % wheel.filename
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diff changeset
700 )
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701 if self._prefer_binary:
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diff changeset
702 binary_preference = 1
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diff changeset
703 pri = -(wheel.support_index_min(valid_tags))
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diff changeset
704 if wheel.build_tag is not None:
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diff changeset
705 match = re.match(r'^(\d+)(.*)$', wheel.build_tag)
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diff changeset
706 build_tag_groups = match.groups()
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diff changeset
707 build_tag = (int(build_tag_groups[0]), build_tag_groups[1])
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diff changeset
708 else: # sdist
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diff changeset
709 pri = -(support_num)
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diff changeset
710 has_allowed_hash = int(link.is_hash_allowed(self._hashes))
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diff changeset
711 yank_value = -1 * int(link.is_yanked) # -1 for yanked.
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diff changeset
712 return (
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diff changeset
713 has_allowed_hash, yank_value, binary_preference, candidate.version,
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diff changeset
714 build_tag, pri,
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diff changeset
715 )
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diff changeset
716
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717 def get_best_candidate(
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diff changeset
718 self,
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diff changeset
719 candidates, # type: List[InstallationCandidate]
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diff changeset
720 ):
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diff changeset
721 # type: (...) -> Optional[InstallationCandidate]
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diff changeset
722 """
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diff changeset
723 Return the best candidate per the instance's sort order, or None if
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diff changeset
724 no candidate is acceptable.
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diff changeset
725 """
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diff changeset
726 if not candidates:
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diff changeset
727 return None
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diff changeset
728
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diff changeset
729 best_candidate = max(candidates, key=self._sort_key)
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diff changeset
730
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diff changeset
731 # Log a warning per PEP 592 if necessary before returning.
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parents:
diff changeset
732 link = best_candidate.link
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diff changeset
733 if link.is_yanked:
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parents:
diff changeset
734 reason = link.yanked_reason or '<none given>'
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diff changeset
735 msg = (
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parents:
diff changeset
736 # Mark this as a unicode string to prevent
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parents:
diff changeset
737 # "UnicodeEncodeError: 'ascii' codec can't encode character"
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parents:
diff changeset
738 # in Python 2 when the reason contains non-ascii characters.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
739 u'The candidate selected for download or install is a '
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parents:
diff changeset
740 'yanked version: {candidate}\n'
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parents:
diff changeset
741 'Reason for being yanked: {reason}'
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parents:
diff changeset
742 ).format(candidate=best_candidate, reason=reason)
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parents:
diff changeset
743 logger.warning(msg)
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parents:
diff changeset
744
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diff changeset
745 return best_candidate
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parents:
diff changeset
746
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diff changeset
747
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parents:
diff changeset
748 class FoundCandidates(object):
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parents:
diff changeset
749 """A collection of candidates, returned by `PackageFinder.find_candidates`.
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diff changeset
750
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diff changeset
751 This class is only intended to be instantiated by CandidateEvaluator's
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parents:
diff changeset
752 `make_found_candidates()` method.
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diff changeset
753 """
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diff changeset
754
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diff changeset
755 def __init__(
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diff changeset
756 self,
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diff changeset
757 candidates, # type: List[InstallationCandidate]
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parents:
diff changeset
758 applicable_candidates, # type: List[InstallationCandidate]
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parents:
diff changeset
759 evaluator, # type: CandidateEvaluator
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diff changeset
760 ):
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diff changeset
761 # type: (...) -> None
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diff changeset
762 """
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diff changeset
763 :param candidates: A sequence of all available candidates found.
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parents:
diff changeset
764 :param applicable_candidates: The applicable candidates.
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parents:
diff changeset
765 :param evaluator: A CandidateEvaluator object to sort applicable
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parents:
diff changeset
766 candidates by order of preference.
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diff changeset
767 """
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diff changeset
768 self._applicable_candidates = applicable_candidates
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diff changeset
769 self._candidates = candidates
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parents:
diff changeset
770 self._evaluator = evaluator
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diff changeset
771
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772 def iter_all(self):
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diff changeset
773 # type: () -> Iterable[InstallationCandidate]
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parents:
diff changeset
774 """Iterate through all candidates.
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775 """
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776 return iter(self._candidates)
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777
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778 def iter_applicable(self):
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779 # type: () -> Iterable[InstallationCandidate]
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diff changeset
780 """Iterate through the applicable candidates.
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781 """
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782 return iter(self._applicable_candidates)
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783
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784 def get_best(self):
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785 # type: () -> Optional[InstallationCandidate]
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diff changeset
786 """Return the best candidate available, or None if no applicable
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787 candidates are found.
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788 """
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789 candidates = list(self.iter_applicable())
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790 return self._evaluator.get_best_candidate(candidates)
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791
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792
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793 class PackageFinder(object):
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794 """This finds packages.
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diff changeset
795
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796 This is meant to match easy_install's technique for looking for
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797 packages, by reading pages and looking for appropriate links.
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798 """
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799
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800 def __init__(
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801 self,
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802 search_scope, # type: SearchScope
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803 session, # type: PipSession
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804 target_python, # type: TargetPython
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805 allow_yanked, # type: bool
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806 format_control=None, # type: Optional[FormatControl]
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807 trusted_hosts=None, # type: Optional[List[str]]
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808 candidate_prefs=None, # type: CandidatePreferences
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809 ignore_requires_python=None, # type: Optional[bool]
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810 ):
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811 # type: (...) -> None
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812 """
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diff changeset
813 This constructor is primarily meant to be used by the create() class
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814 method and from tests.
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815
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816 :param session: The Session to use to make requests.
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817 :param format_control: A FormatControl object, used to control
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818 the selection of source packages / binary packages when consulting
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diff changeset
819 the index and links.
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820 :param candidate_prefs: Options to use when creating a
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821 CandidateEvaluator object.
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822 """
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823 if trusted_hosts is None:
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824 trusted_hosts = []
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825 if candidate_prefs is None:
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826 candidate_prefs = CandidatePreferences()
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diff changeset
827
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828 format_control = format_control or FormatControl(set(), set())
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diff changeset
829
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830 self._allow_yanked = allow_yanked
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diff changeset
831 self._candidate_prefs = candidate_prefs
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diff changeset
832 self._ignore_requires_python = ignore_requires_python
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833 self._target_python = target_python
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834
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835 self.search_scope = search_scope
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836 self.session = session
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837 self.format_control = format_control
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838 self.trusted_hosts = trusted_hosts
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839
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840 # These are boring links that have already been logged somehow.
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841 self._logged_links = set() # type: Set[Link]
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diff changeset
842
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843 # Don't include an allow_yanked default value to make sure each call
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844 # site considers whether yanked releases are allowed. This also causes
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845 # that decision to be made explicit in the calling code, which helps
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diff changeset
846 # people when reading the code.
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847 @classmethod
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848 def create(
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849 cls,
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850 search_scope, # type: SearchScope
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diff changeset
851 selection_prefs, # type: SelectionPreferences
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diff changeset
852 trusted_hosts=None, # type: Optional[List[str]]
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diff changeset
853 session=None, # type: Optional[PipSession]
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diff changeset
854 target_python=None, # type: Optional[TargetPython]
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diff changeset
855 ):
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856 # type: (...) -> PackageFinder
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diff changeset
857 """Create a PackageFinder.
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858
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859 :param selection_prefs: The candidate selection preferences, as a
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860 SelectionPreferences object.
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861 :param trusted_hosts: Domains not to emit warnings for when not using
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862 HTTPS.
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863 :param session: The Session to use to make requests.
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864 :param target_python: The target Python interpreter to use when
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diff changeset
865 checking compatibility. If None (the default), a TargetPython
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diff changeset
866 object will be constructed from the running Python.
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867 """
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868 if session is None:
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869 raise TypeError(
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870 "PackageFinder.create() missing 1 required keyword argument: "
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871 "'session'"
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diff changeset
872 )
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873 if target_python is None:
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874 target_python = TargetPython()
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875
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876 candidate_prefs = CandidatePreferences(
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877 prefer_binary=selection_prefs.prefer_binary,
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878 allow_all_prereleases=selection_prefs.allow_all_prereleases,
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879 )
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880
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881 return cls(
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882 candidate_prefs=candidate_prefs,
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883 search_scope=search_scope,
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884 session=session,
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885 target_python=target_python,
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886 allow_yanked=selection_prefs.allow_yanked,
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887 format_control=selection_prefs.format_control,
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888 trusted_hosts=trusted_hosts,
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889 ignore_requires_python=selection_prefs.ignore_requires_python,
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890 )
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891
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892 @property
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893 def find_links(self):
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894 # type: () -> List[str]
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895 return self.search_scope.find_links
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896
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897 @property
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898 def index_urls(self):
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899 # type: () -> List[str]
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900 return self.search_scope.index_urls
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901
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902 @property
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903 def allow_all_prereleases(self):
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diff changeset
904 # type: () -> bool
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
905 return self._candidate_prefs.allow_all_prereleases
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
906
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
907 def set_allow_all_prereleases(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
908 # type: () -> None
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
909 self._candidate_prefs.allow_all_prereleases = True
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
910
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
911 def add_trusted_host(self, host, source=None):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
912 # type: (str, Optional[str]) -> None
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
913 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
914 :param source: An optional source string, for logging where the host
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
915 string came from.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
916 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
917 # It is okay to add a previously added host because PipSession stores
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
918 # the resulting prefixes in a dict.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
919 msg = 'adding trusted host: {!r}'.format(host)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
920 if source is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
921 msg += ' (from {})'.format(source)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
922 logger.info(msg)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
923 self.session.add_insecure_host(host)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
924 if host in self.trusted_hosts:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
925 return
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guerler
parents:
diff changeset
926
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guerler
parents:
diff changeset
927 self.trusted_hosts.append(host)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
928
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
929 def iter_secure_origins(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
930 # type: () -> Iterator[SecureOrigin]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
931 for secure_origin in SECURE_ORIGINS:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
932 yield secure_origin
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guerler
parents:
diff changeset
933 for host in self.trusted_hosts:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
934 yield ('*', host, '*')
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parents:
diff changeset
935
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guerler
parents:
diff changeset
936 @staticmethod
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
937 def _sort_locations(locations, expand_dir=False):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
938 # type: (Sequence[str], bool) -> Tuple[List[str], List[str]]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
939 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
940 Sort locations into "files" (archives) and "urls", and return
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
941 a pair of lists (files,urls)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
942 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
943 files = []
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guerler
parents:
diff changeset
944 urls = []
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guerler
parents:
diff changeset
945
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guerler
parents:
diff changeset
946 # puts the url for the given file path into the appropriate list
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
947 def sort_path(path):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
948 url = path_to_url(path)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
949 if mimetypes.guess_type(url, strict=False)[0] == 'text/html':
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
950 urls.append(url)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
951 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
952 files.append(url)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
953
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
954 for url in locations:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
955
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guerler
parents:
diff changeset
956 is_local_path = os.path.exists(url)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
957 is_file_url = url.startswith('file:')
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
958
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
959 if is_local_path or is_file_url:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
960 if is_local_path:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
961 path = url
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
962 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
963 path = url_to_path(url)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
964 if os.path.isdir(path):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
965 if expand_dir:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
966 path = os.path.realpath(path)
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guerler
parents:
diff changeset
967 for item in os.listdir(path):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
968 sort_path(os.path.join(path, item))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
969 elif is_file_url:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
970 urls.append(url)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
971 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
972 logger.warning(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
973 "Path '{0}' is ignored: "
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
974 "it is a directory.".format(path),
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
975 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
976 elif os.path.isfile(path):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
977 sort_path(path)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
978 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
979 logger.warning(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
980 "Url '%s' is ignored: it is neither a file "
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
981 "nor a directory.", url,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
982 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
983 elif is_url(url):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
984 # Only add url with clear scheme
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
985 urls.append(url)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
986 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
987 logger.warning(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
988 "Url '%s' is ignored. It is either a non-existing "
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
989 "path or lacks a specific scheme.", url,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
990 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
991
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
992 return files, urls
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
993
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
994 def _validate_secure_origin(self, logger, location):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
995 # type: (Logger, Link) -> bool
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
996 # Determine if this url used a secure transport mechanism
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
997 parsed = urllib_parse.urlparse(str(location))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
998 origin = (parsed.scheme, parsed.hostname, parsed.port)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
999
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1000 # The protocol to use to see if the protocol matches.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1001 # Don't count the repository type as part of the protocol: in
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1002 # cases such as "git+ssh", only use "ssh". (I.e., Only verify against
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1003 # the last scheme.)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1004 protocol = origin[0].rsplit('+', 1)[-1]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1005
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1006 # Determine if our origin is a secure origin by looking through our
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1007 # hardcoded list of secure origins, as well as any additional ones
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1008 # configured on this PackageFinder instance.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1009 for secure_origin in self.iter_secure_origins():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1010 if protocol != secure_origin[0] and secure_origin[0] != "*":
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1011 continue
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1012
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1013 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1014 # We need to do this decode dance to ensure that we have a
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1015 # unicode object, even on Python 2.x.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1016 addr = ipaddress.ip_address(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1017 origin[1]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1018 if (
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1019 isinstance(origin[1], six.text_type) or
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1020 origin[1] is None
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1021 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1022 else origin[1].decode("utf8")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1023 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1024 network = ipaddress.ip_network(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1025 secure_origin[1]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1026 if isinstance(secure_origin[1], six.text_type)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1027 # setting secure_origin[1] to proper Union[bytes, str]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1028 # creates problems in other places
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1029 else secure_origin[1].decode("utf8") # type: ignore
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1030 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1031 except ValueError:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1032 # We don't have both a valid address or a valid network, so
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diff changeset
1033 # we'll check this origin against hostnames.
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diff changeset
1034 if (origin[1] and
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diff changeset
1035 origin[1].lower() != secure_origin[1].lower() and
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diff changeset
1036 secure_origin[1] != "*"):
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parents:
diff changeset
1037 continue
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diff changeset
1038 else:
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diff changeset
1039 # We have a valid address and network, so see if the address
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parents:
diff changeset
1040 # is contained within the network.
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diff changeset
1041 if addr not in network:
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parents:
diff changeset
1042 continue
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diff changeset
1043
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parents:
diff changeset
1044 # Check to see if the port patches
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diff changeset
1045 if (origin[2] != secure_origin[2] and
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diff changeset
1046 secure_origin[2] != "*" and
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diff changeset
1047 secure_origin[2] is not None):
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parents:
diff changeset
1048 continue
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diff changeset
1049
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diff changeset
1050 # If we've gotten here, then this origin matches the current
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parents:
diff changeset
1051 # secure origin and we should return True
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parents:
diff changeset
1052 return True
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diff changeset
1053
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diff changeset
1054 # If we've gotten to this point, then the origin isn't secure and we
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diff changeset
1055 # will not accept it as a valid location to search. We will however
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diff changeset
1056 # log a warning that we are ignoring it.
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diff changeset
1057 logger.warning(
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diff changeset
1058 "The repository located at %s is not a trusted or secure host and "
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diff changeset
1059 "is being ignored. If this repository is available via HTTPS we "
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diff changeset
1060 "recommend you use HTTPS instead, otherwise you may silence "
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parents:
diff changeset
1061 "this warning and allow it anyway with '--trusted-host %s'.",
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diff changeset
1062 parsed.hostname,
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diff changeset
1063 parsed.hostname,
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parents:
diff changeset
1064 )
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diff changeset
1065
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1066 return False
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diff changeset
1067
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diff changeset
1068 def make_link_evaluator(self, project_name):
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diff changeset
1069 # type: (str) -> LinkEvaluator
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diff changeset
1070 canonical_name = canonicalize_name(project_name)
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diff changeset
1071 formats = self.format_control.get_allowed_formats(canonical_name)
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diff changeset
1072
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diff changeset
1073 return LinkEvaluator(
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diff changeset
1074 project_name=project_name,
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diff changeset
1075 canonical_name=canonical_name,
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parents:
diff changeset
1076 formats=formats,
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diff changeset
1077 target_python=self._target_python,
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diff changeset
1078 allow_yanked=self._allow_yanked,
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diff changeset
1079 ignore_requires_python=self._ignore_requires_python,
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parents:
diff changeset
1080 )
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diff changeset
1081
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diff changeset
1082 def find_all_candidates(self, project_name):
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1083 # type: (str) -> List[InstallationCandidate]
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diff changeset
1084 """Find all available InstallationCandidate for project_name
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diff changeset
1085
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diff changeset
1086 This checks index_urls and find_links.
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parents:
diff changeset
1087 All versions found are returned as an InstallationCandidate list.
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parents:
diff changeset
1088
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diff changeset
1089 See LinkEvaluator.evaluate_link() for details on which files
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parents:
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1090 are accepted.
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diff changeset
1091 """
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diff changeset
1092 search_scope = self.search_scope
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diff changeset
1093 index_locations = search_scope.get_index_urls_locations(project_name)
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diff changeset
1094 index_file_loc, index_url_loc = self._sort_locations(index_locations)
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diff changeset
1095 fl_file_loc, fl_url_loc = self._sort_locations(
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diff changeset
1096 self.find_links, expand_dir=True,
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diff changeset
1097 )
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diff changeset
1098
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diff changeset
1099 file_locations = (Link(url) for url in itertools.chain(
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diff changeset
1100 index_file_loc, fl_file_loc,
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diff changeset
1101 ))
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diff changeset
1102
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diff changeset
1103 # We trust every url that the user has given us whether it was given
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diff changeset
1104 # via --index-url or --find-links.
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diff changeset
1105 # We want to filter out any thing which does not have a secure origin.
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diff changeset
1106 url_locations = [
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diff changeset
1107 link for link in itertools.chain(
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diff changeset
1108 (Link(url) for url in index_url_loc),
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diff changeset
1109 (Link(url) for url in fl_url_loc),
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diff changeset
1110 )
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diff changeset
1111 if self._validate_secure_origin(logger, link)
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diff changeset
1112 ]
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diff changeset
1113
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diff changeset
1114 logger.debug('%d location(s) to search for versions of %s:',
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diff changeset
1115 len(url_locations), project_name)
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diff changeset
1116
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diff changeset
1117 for location in url_locations:
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diff changeset
1118 logger.debug('* %s', location)
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diff changeset
1119
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diff changeset
1120 link_evaluator = self.make_link_evaluator(project_name)
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diff changeset
1121 find_links_versions = self._package_versions(
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parents:
diff changeset
1122 link_evaluator,
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diff changeset
1123 # We trust every directly linked archive in find_links
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diff changeset
1124 (Link(url, '-f') for url in self.find_links),
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parents:
diff changeset
1125 )
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diff changeset
1126
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diff changeset
1127 page_versions = []
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diff changeset
1128 for page in self._get_pages(url_locations, project_name):
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parents:
diff changeset
1129 logger.debug('Analyzing links from page %s', page.url)
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parents:
diff changeset
1130 with indent_log():
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diff changeset
1131 page_versions.extend(
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diff changeset
1132 self._package_versions(link_evaluator, page.iter_links())
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diff changeset
1133 )
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diff changeset
1134
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diff changeset
1135 file_versions = self._package_versions(link_evaluator, file_locations)
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parents:
diff changeset
1136 if file_versions:
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diff changeset
1137 file_versions.sort(reverse=True)
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parents:
diff changeset
1138 logger.debug(
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parents:
diff changeset
1139 'Local files found: %s',
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parents:
diff changeset
1140 ', '.join([
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parents:
diff changeset
1141 url_to_path(candidate.link.url)
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parents:
diff changeset
1142 for candidate in file_versions
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parents:
diff changeset
1143 ])
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parents:
diff changeset
1144 )
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diff changeset
1145
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1146 # This is an intentional priority ordering
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diff changeset
1147 return file_versions + find_links_versions + page_versions
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parents:
diff changeset
1148
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diff changeset
1149 def make_candidate_evaluator(
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diff changeset
1150 self,
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diff changeset
1151 project_name, # type: str
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diff changeset
1152 specifier=None, # type: Optional[specifiers.BaseSpecifier]
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diff changeset
1153 hashes=None, # type: Optional[Hashes]
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parents:
diff changeset
1154 ):
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diff changeset
1155 # type: (...) -> CandidateEvaluator
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diff changeset
1156 """Create a CandidateEvaluator object to use.
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diff changeset
1157 """
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diff changeset
1158 candidate_prefs = self._candidate_prefs
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parents:
diff changeset
1159 return CandidateEvaluator.create(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1160 project_name=project_name,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1161 target_python=self._target_python,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1162 prefer_binary=candidate_prefs.prefer_binary,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1163 allow_all_prereleases=candidate_prefs.allow_all_prereleases,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1164 specifier=specifier,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1165 hashes=hashes,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1166 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1167
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1168 def find_candidates(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1169 self,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1170 project_name, # type: str
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1171 specifier=None, # type: Optional[specifiers.BaseSpecifier]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1172 hashes=None, # type: Optional[Hashes]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1173 ):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1174 # type: (...) -> FoundCandidates
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1175 """Find matches for the given project and specifier.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1176
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1177 :param specifier: An optional object implementing `filter`
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1178 (e.g. `packaging.specifiers.SpecifierSet`) to filter applicable
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1179 versions.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1180
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1181 :return: A `FoundCandidates` instance.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1182 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1183 candidates = self.find_all_candidates(project_name)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1184 candidate_evaluator = self.make_candidate_evaluator(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1185 project_name=project_name,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1186 specifier=specifier,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1187 hashes=hashes,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1188 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1189 return candidate_evaluator.make_found_candidates(candidates)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1190
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1191 def find_requirement(self, req, upgrade):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1192 # type: (InstallRequirement, bool) -> Optional[Link]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1193 """Try to find a Link matching req
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guerler
parents:
diff changeset
1194
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guerler
parents:
diff changeset
1195 Expects req, an InstallRequirement and upgrade, a boolean
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1196 Returns a Link if found,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1197 Raises DistributionNotFound or BestVersionAlreadyInstalled otherwise
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1198 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1199 hashes = req.hashes(trust_internet=False)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1200 candidates = self.find_candidates(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1201 req.name, specifier=req.specifier, hashes=hashes,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1202 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1203 best_candidate = candidates.get_best()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1204
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1205 installed_version = None # type: Optional[_BaseVersion]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1206 if req.satisfied_by is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1207 installed_version = parse_version(req.satisfied_by.version)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1208
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1209 def _format_versions(cand_iter):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1210 # This repeated parse_version and str() conversion is needed to
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1211 # handle different vendoring sources from pip and pkg_resources.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1212 # If we stop using the pkg_resources provided specifier and start
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1213 # using our own, we can drop the cast to str().
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1214 return ", ".join(sorted(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1215 {str(c.version) for c in cand_iter},
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1216 key=parse_version,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1217 )) or "none"
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1218
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1219 if installed_version is None and best_candidate is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1220 logger.critical(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1221 'Could not find a version that satisfies the requirement %s '
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1222 '(from versions: %s)',
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1223 req,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1224 _format_versions(candidates.iter_all()),
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1225 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1226
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1227 raise DistributionNotFound(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1228 'No matching distribution found for %s' % req
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1229 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1230
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1231 best_installed = False
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1232 if installed_version and (
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1233 best_candidate is None or
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1234 best_candidate.version <= installed_version):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1235 best_installed = True
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1236
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1237 if not upgrade and installed_version is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1238 if best_installed:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1239 logger.debug(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1240 'Existing installed version (%s) is most up-to-date and '
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1241 'satisfies requirement',
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1242 installed_version,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1243 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1244 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1245 logger.debug(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1246 'Existing installed version (%s) satisfies requirement '
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1247 '(most up-to-date version is %s)',
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1248 installed_version,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1249 best_candidate.version,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1250 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1251 return None
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1252
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1253 if best_installed:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1254 # We have an existing version, and its the best version
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1255 logger.debug(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1256 'Installed version (%s) is most up-to-date (past versions: '
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1257 '%s)',
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1258 installed_version,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1259 _format_versions(candidates.iter_applicable()),
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1260 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1261 raise BestVersionAlreadyInstalled
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1262
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1263 logger.debug(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1264 'Using version %s (newest of versions: %s)',
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1265 best_candidate.version,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1266 _format_versions(candidates.iter_applicable()),
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1267 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1268 return best_candidate.link
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1269
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1270 def _get_pages(self, locations, project_name):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1271 # type: (Iterable[Link], str) -> Iterable[HTMLPage]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1272 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1273 Yields (page, page_url) from the given locations, skipping
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1274 locations that have errors.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1275 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1276 seen = set() # type: Set[Link]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1277 for location in locations:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1278 if location in seen:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1279 continue
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1280 seen.add(location)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1281
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1282 page = _get_html_page(location, session=self.session)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1283 if page is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1284 continue
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1285
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1286 yield page
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1287
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1288 def _sort_links(self, links):
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parents:
diff changeset
1289 # type: (Iterable[Link]) -> List[Link]
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parents:
diff changeset
1290 """
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parents:
diff changeset
1291 Returns elements of links in order, non-egg links first, egg links
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parents:
diff changeset
1292 second, while eliminating duplicates
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parents:
diff changeset
1293 """
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parents:
diff changeset
1294 eggs, no_eggs = [], []
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parents:
diff changeset
1295 seen = set() # type: Set[Link]
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parents:
diff changeset
1296 for link in links:
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parents:
diff changeset
1297 if link not in seen:
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parents:
diff changeset
1298 seen.add(link)
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parents:
diff changeset
1299 if link.egg_fragment:
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parents:
diff changeset
1300 eggs.append(link)
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parents:
diff changeset
1301 else:
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parents:
diff changeset
1302 no_eggs.append(link)
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parents:
diff changeset
1303 return no_eggs + eggs
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parents:
diff changeset
1304
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diff changeset
1305 def _log_skipped_link(self, link, reason):
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parents:
diff changeset
1306 # type: (Link, Text) -> None
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parents:
diff changeset
1307 if link not in self._logged_links:
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parents:
diff changeset
1308 # Mark this as a unicode string to prevent "UnicodeEncodeError:
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parents:
diff changeset
1309 # 'ascii' codec can't encode character" in Python 2 when
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parents:
diff changeset
1310 # the reason contains non-ascii characters.
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parents:
diff changeset
1311 # Also, put the link at the end so the reason is more visible
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parents:
diff changeset
1312 # and because the link string is usually very long.
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parents:
diff changeset
1313 logger.debug(u'Skipping link: %s: %s', reason, link)
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parents:
diff changeset
1314 self._logged_links.add(link)
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parents:
diff changeset
1315
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parents:
diff changeset
1316 def get_install_candidate(self, link_evaluator, link):
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parents:
diff changeset
1317 # type: (LinkEvaluator, Link) -> Optional[InstallationCandidate]
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parents:
diff changeset
1318 """
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parents:
diff changeset
1319 If the link is a candidate for install, convert it to an
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parents:
diff changeset
1320 InstallationCandidate and return it. Otherwise, return None.
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parents:
diff changeset
1321 """
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parents:
diff changeset
1322 is_candidate, result = link_evaluator.evaluate_link(link)
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parents:
diff changeset
1323 if not is_candidate:
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parents:
diff changeset
1324 if result:
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parents:
diff changeset
1325 self._log_skipped_link(link, reason=result)
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parents:
diff changeset
1326 return None
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parents:
diff changeset
1327
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parents:
diff changeset
1328 return InstallationCandidate(
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parents:
diff changeset
1329 project=link_evaluator.project_name,
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parents:
diff changeset
1330 link=link,
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parents:
diff changeset
1331 # Convert the Text result to str since InstallationCandidate
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parents:
diff changeset
1332 # accepts str.
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parents:
diff changeset
1333 version=str(result),
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parents:
diff changeset
1334 )
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parents:
diff changeset
1335
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parents:
diff changeset
1336 def _package_versions(self, link_evaluator, links):
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parents:
diff changeset
1337 # type: (LinkEvaluator, Iterable[Link]) -> List[InstallationCandidate]
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parents:
diff changeset
1338 result = []
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parents:
diff changeset
1339 for link in self._sort_links(links):
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parents:
diff changeset
1340 candidate = self.get_install_candidate(link_evaluator, link)
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parents:
diff changeset
1341 if candidate is not None:
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parents:
diff changeset
1342 result.append(candidate)
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parents:
diff changeset
1343 return result
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parents:
diff changeset
1344
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parents:
diff changeset
1345
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parents:
diff changeset
1346 def _find_name_version_sep(fragment, canonical_name):
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parents:
diff changeset
1347 # type: (str, str) -> int
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parents:
diff changeset
1348 """Find the separator's index based on the package's canonical name.
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parents:
diff changeset
1349
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parents:
diff changeset
1350 :param fragment: A <package>+<version> filename "fragment" (stem) or
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parents:
diff changeset
1351 egg fragment.
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parents:
diff changeset
1352 :param canonical_name: The package's canonical name.
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parents:
diff changeset
1353
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parents:
diff changeset
1354 This function is needed since the canonicalized name does not necessarily
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parents:
diff changeset
1355 have the same length as the egg info's name part. An example::
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parents:
diff changeset
1356
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parents:
diff changeset
1357 >>> fragment = 'foo__bar-1.0'
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parents:
diff changeset
1358 >>> canonical_name = 'foo-bar'
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parents:
diff changeset
1359 >>> _find_name_version_sep(fragment, canonical_name)
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parents:
diff changeset
1360 8
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parents:
diff changeset
1361 """
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parents:
diff changeset
1362 # Project name and version must be separated by one single dash. Find all
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guerler
parents:
diff changeset
1363 # occurrences of dashes; if the string in front of it matches the canonical
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guerler
parents:
diff changeset
1364 # name, this is the one separating the name and version parts.
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parents:
diff changeset
1365 for i, c in enumerate(fragment):
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parents:
diff changeset
1366 if c != "-":
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guerler
parents:
diff changeset
1367 continue
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parents:
diff changeset
1368 if canonicalize_name(fragment[:i]) == canonical_name:
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parents:
diff changeset
1369 return i
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parents:
diff changeset
1370 raise ValueError("{} does not match {}".format(fragment, canonical_name))
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parents:
diff changeset
1371
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parents:
diff changeset
1372
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parents:
diff changeset
1373 def _extract_version_from_fragment(fragment, canonical_name):
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guerler
parents:
diff changeset
1374 # type: (str, str) -> Optional[str]
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guerler
parents:
diff changeset
1375 """Parse the version string from a <package>+<version> filename
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guerler
parents:
diff changeset
1376 "fragment" (stem) or egg fragment.
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parents:
diff changeset
1377
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parents:
diff changeset
1378 :param fragment: The string to parse. E.g. foo-2.1
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guerler
parents:
diff changeset
1379 :param canonical_name: The canonicalized name of the package this
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parents:
diff changeset
1380 belongs to.
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parents:
diff changeset
1381 """
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parents:
diff changeset
1382 try:
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parents:
diff changeset
1383 version_start = _find_name_version_sep(fragment, canonical_name) + 1
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guerler
parents:
diff changeset
1384 except ValueError:
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parents:
diff changeset
1385 return None
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guerler
parents:
diff changeset
1386 version = fragment[version_start:]
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guerler
parents:
diff changeset
1387 if not version:
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parents:
diff changeset
1388 return None
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guerler
parents:
diff changeset
1389 return version
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guerler
parents:
diff changeset
1390
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guerler
parents:
diff changeset
1391
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parents:
diff changeset
1392 def _determine_base_url(document, page_url):
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guerler
parents:
diff changeset
1393 """Determine the HTML document's base URL.
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guerler
parents:
diff changeset
1394
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parents:
diff changeset
1395 This looks for a ``<base>`` tag in the HTML document. If present, its href
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guerler
parents:
diff changeset
1396 attribute denotes the base URL of anchor tags in the document. If there is
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guerler
parents:
diff changeset
1397 no such tag (or if it does not have a valid href attribute), the HTML
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guerler
parents:
diff changeset
1398 file's URL is used as the base URL.
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guerler
parents:
diff changeset
1399
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parents:
diff changeset
1400 :param document: An HTML document representation. The current
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guerler
parents:
diff changeset
1401 implementation expects the result of ``html5lib.parse()``.
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guerler
parents:
diff changeset
1402 :param page_url: The URL of the HTML document.
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parents:
diff changeset
1403 """
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guerler
parents:
diff changeset
1404 for base in document.findall(".//base"):
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guerler
parents:
diff changeset
1405 href = base.get("href")
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parents:
diff changeset
1406 if href is not None:
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guerler
parents:
diff changeset
1407 return href
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guerler
parents:
diff changeset
1408 return page_url
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guerler
parents:
diff changeset
1409
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guerler
parents:
diff changeset
1410
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guerler
parents:
diff changeset
1411 def _get_encoding_from_headers(headers):
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guerler
parents:
diff changeset
1412 """Determine if we have any encoding information in our headers.
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guerler
parents:
diff changeset
1413 """
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guerler
parents:
diff changeset
1414 if headers and "Content-Type" in headers:
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guerler
parents:
diff changeset
1415 content_type, params = cgi.parse_header(headers["Content-Type"])
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1416 if "charset" in params:
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1417 return params['charset']
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1418 return None
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1419
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1420
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1421 def _clean_link(url):
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1422 # type: (str) -> str
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diff changeset
1423 """Makes sure a link is fully encoded. That is, if a ' ' shows up in
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1424 the link, it will be rewritten to %20 (while not over-quoting
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diff changeset
1425 % or other characters)."""
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diff changeset
1426 # Split the URL into parts according to the general structure
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diff changeset
1427 # `scheme://netloc/path;parameters?query#fragment`. Note that the
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diff changeset
1428 # `netloc` can be empty and the URI will then refer to a local
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1429 # filesystem path.
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1430 result = urllib_parse.urlparse(url)
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1431 # In both cases below we unquote prior to quoting to make sure
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1432 # nothing is double quoted.
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1433 if result.netloc == "":
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parents:
diff changeset
1434 # On Windows the path part might contain a drive letter which
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1435 # should not be quoted. On Linux where drive letters do not
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diff changeset
1436 # exist, the colon should be quoted. We rely on urllib.request
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1437 # to do the right thing here.
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1438 path = urllib_request.pathname2url(
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1439 urllib_request.url2pathname(result.path))
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1440 else:
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1441 # In addition to the `/` character we protect `@` so that
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diff changeset
1442 # revision strings in VCS URLs are properly parsed.
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diff changeset
1443 path = urllib_parse.quote(urllib_parse.unquote(result.path), safe="/@")
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1444 return urllib_parse.urlunparse(result._replace(path=path))
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1445
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1446
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1447 def _create_link_from_element(
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1448 anchor, # type: HTMLElement
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1449 page_url, # type: str
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1450 base_url, # type: str
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1451 ):
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1452 # type: (...) -> Optional[Link]
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1453 """
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1454 Convert an anchor element in a simple repository page to a Link.
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1455 """
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1456 href = anchor.get("href")
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1457 if not href:
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1458 return None
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1459
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1460 url = _clean_link(urllib_parse.urljoin(base_url, href))
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1461 pyrequire = anchor.get('data-requires-python')
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1462 pyrequire = unescape(pyrequire) if pyrequire else None
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1463
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1464 yanked_reason = anchor.get('data-yanked')
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1465 if yanked_reason:
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1466 # This is a unicode string in Python 2 (and 3).
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1467 yanked_reason = unescape(yanked_reason)
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1468
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1469 link = Link(
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1470 url,
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1471 comes_from=page_url,
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1472 requires_python=pyrequire,
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1473 yanked_reason=yanked_reason,
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1474 )
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1475
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1476 return link
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1477
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1478
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1479 class HTMLPage(object):
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1480 """Represents one page, along with its URL"""
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1481
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1482 def __init__(self, content, url, headers=None):
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1483 # type: (bytes, str, MutableMapping[str, str]) -> None
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1484 self.content = content
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1485 self.url = url
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1486 self.headers = headers
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1487
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1488 def __str__(self):
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1489 return redact_password_from_url(self.url)
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1490
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1491 def iter_links(self):
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1492 # type: () -> Iterable[Link]
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diff changeset
1493 """Yields all links in the page"""
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1494 document = html5lib.parse(
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1495 self.content,
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diff changeset
1496 transport_encoding=_get_encoding_from_headers(self.headers),
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1497 namespaceHTMLElements=False,
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1498 )
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1499 base_url = _determine_base_url(document, self.url)
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1500 for anchor in document.findall(".//a"):
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diff changeset
1501 link = _create_link_from_element(
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1502 anchor,
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1503 page_url=self.url,
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1504 base_url=base_url,
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diff changeset
1505 )
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1506 if link is None:
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1507 continue
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1508 yield link