Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/pip/_internal/models/link.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 import os |
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2 import posixpath |
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3 import re |
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4 import urllib.parse |
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5 |
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6 from pip._internal.utils.filetypes import WHEEL_EXTENSION |
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7 from pip._internal.utils.misc import ( |
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8 redact_auth_from_url, |
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9 split_auth_from_netloc, |
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10 splitext, |
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11 ) |
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12 from pip._internal.utils.models import KeyBasedCompareMixin |
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13 from pip._internal.utils.typing import MYPY_CHECK_RUNNING |
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14 from pip._internal.utils.urls import path_to_url, url_to_path |
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15 |
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16 if MYPY_CHECK_RUNNING: |
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17 from typing import Optional, Tuple, Union |
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18 |
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19 from pip._internal.index.collector import HTMLPage |
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20 from pip._internal.utils.hashes import Hashes |
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21 |
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22 |
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23 class Link(KeyBasedCompareMixin): |
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24 """Represents a parsed link from a Package Index's simple URL |
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25 """ |
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26 |
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27 __slots__ = [ |
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28 "_parsed_url", |
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29 "_url", |
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30 "comes_from", |
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31 "requires_python", |
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32 "yanked_reason", |
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33 "cache_link_parsing", |
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34 ] |
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35 |
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36 def __init__( |
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37 self, |
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38 url, # type: str |
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39 comes_from=None, # type: Optional[Union[str, HTMLPage]] |
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40 requires_python=None, # type: Optional[str] |
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41 yanked_reason=None, # type: Optional[str] |
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42 cache_link_parsing=True, # type: bool |
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43 ): |
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44 # type: (...) -> None |
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45 """ |
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46 :param url: url of the resource pointed to (href of the link) |
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47 :param comes_from: instance of HTMLPage where the link was found, |
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48 or string. |
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49 :param requires_python: String containing the `Requires-Python` |
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50 metadata field, specified in PEP 345. This may be specified by |
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51 a data-requires-python attribute in the HTML link tag, as |
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52 described in PEP 503. |
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53 :param yanked_reason: the reason the file has been yanked, if the |
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54 file has been yanked, or None if the file hasn't been yanked. |
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55 This is the value of the "data-yanked" attribute, if present, in |
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56 a simple repository HTML link. If the file has been yanked but |
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57 no reason was provided, this should be the empty string. See |
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58 PEP 592 for more information and the specification. |
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59 :param cache_link_parsing: A flag that is used elsewhere to determine |
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60 whether resources retrieved from this link |
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61 should be cached. PyPI index urls should |
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62 generally have this set to False, for |
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63 example. |
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64 """ |
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65 |
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66 # url can be a UNC windows share |
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67 if url.startswith('\\\\'): |
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68 url = path_to_url(url) |
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69 |
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70 self._parsed_url = urllib.parse.urlsplit(url) |
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71 # Store the url as a private attribute to prevent accidentally |
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72 # trying to set a new value. |
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73 self._url = url |
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74 |
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75 self.comes_from = comes_from |
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76 self.requires_python = requires_python if requires_python else None |
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77 self.yanked_reason = yanked_reason |
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78 |
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79 super().__init__(key=url, defining_class=Link) |
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80 |
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81 self.cache_link_parsing = cache_link_parsing |
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82 |
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83 def __str__(self): |
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84 # type: () -> str |
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85 if self.requires_python: |
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86 rp = f' (requires-python:{self.requires_python})' |
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87 else: |
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88 rp = '' |
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89 if self.comes_from: |
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90 return '{} (from {}){}'.format( |
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91 redact_auth_from_url(self._url), self.comes_from, rp) |
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92 else: |
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93 return redact_auth_from_url(str(self._url)) |
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94 |
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95 def __repr__(self): |
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96 # type: () -> str |
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97 return f'<Link {self}>' |
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98 |
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99 @property |
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100 def url(self): |
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101 # type: () -> str |
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102 return self._url |
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103 |
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104 @property |
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105 def filename(self): |
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106 # type: () -> str |
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107 path = self.path.rstrip('/') |
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108 name = posixpath.basename(path) |
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109 if not name: |
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110 # Make sure we don't leak auth information if the netloc |
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111 # includes a username and password. |
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112 netloc, user_pass = split_auth_from_netloc(self.netloc) |
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113 return netloc |
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114 |
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115 name = urllib.parse.unquote(name) |
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116 assert name, ( |
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117 'URL {self._url!r} produced no filename'.format(**locals())) |
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118 return name |
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119 |
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120 @property |
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121 def file_path(self): |
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122 # type: () -> str |
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123 return url_to_path(self.url) |
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124 |
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125 @property |
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126 def scheme(self): |
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127 # type: () -> str |
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128 return self._parsed_url.scheme |
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129 |
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130 @property |
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131 def netloc(self): |
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132 # type: () -> str |
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133 """ |
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134 This can contain auth information. |
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135 """ |
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136 return self._parsed_url.netloc |
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137 |
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138 @property |
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139 def path(self): |
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140 # type: () -> str |
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141 return urllib.parse.unquote(self._parsed_url.path) |
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142 |
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143 def splitext(self): |
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144 # type: () -> Tuple[str, str] |
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145 return splitext(posixpath.basename(self.path.rstrip('/'))) |
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146 |
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147 @property |
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148 def ext(self): |
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149 # type: () -> str |
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150 return self.splitext()[1] |
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151 |
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152 @property |
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153 def url_without_fragment(self): |
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154 # type: () -> str |
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155 scheme, netloc, path, query, fragment = self._parsed_url |
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156 return urllib.parse.urlunsplit((scheme, netloc, path, query, None)) |
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157 |
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158 _egg_fragment_re = re.compile(r'[#&]egg=([^&]*)') |
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159 |
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160 @property |
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161 def egg_fragment(self): |
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162 # type: () -> Optional[str] |
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163 match = self._egg_fragment_re.search(self._url) |
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164 if not match: |
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165 return None |
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166 return match.group(1) |
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167 |
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168 _subdirectory_fragment_re = re.compile(r'[#&]subdirectory=([^&]*)') |
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169 |
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170 @property |
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171 def subdirectory_fragment(self): |
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172 # type: () -> Optional[str] |
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173 match = self._subdirectory_fragment_re.search(self._url) |
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174 if not match: |
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175 return None |
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176 return match.group(1) |
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177 |
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178 _hash_re = re.compile( |
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179 r'(sha1|sha224|sha384|sha256|sha512|md5)=([a-f0-9]+)' |
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180 ) |
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181 |
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182 @property |
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183 def hash(self): |
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184 # type: () -> Optional[str] |
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185 match = self._hash_re.search(self._url) |
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186 if match: |
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187 return match.group(2) |
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188 return None |
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189 |
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190 @property |
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191 def hash_name(self): |
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192 # type: () -> Optional[str] |
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193 match = self._hash_re.search(self._url) |
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194 if match: |
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195 return match.group(1) |
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196 return None |
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197 |
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198 @property |
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199 def show_url(self): |
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200 # type: () -> str |
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201 return posixpath.basename(self._url.split('#', 1)[0].split('?', 1)[0]) |
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202 |
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203 @property |
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204 def is_file(self): |
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205 # type: () -> bool |
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206 return self.scheme == 'file' |
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207 |
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208 def is_existing_dir(self): |
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209 # type: () -> bool |
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210 return self.is_file and os.path.isdir(self.file_path) |
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211 |
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212 @property |
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213 def is_wheel(self): |
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214 # type: () -> bool |
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215 return self.ext == WHEEL_EXTENSION |
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216 |
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217 @property |
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218 def is_vcs(self): |
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219 # type: () -> bool |
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220 from pip._internal.vcs import vcs |
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221 |
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222 return self.scheme in vcs.all_schemes |
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223 |
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224 @property |
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225 def is_yanked(self): |
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226 # type: () -> bool |
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227 return self.yanked_reason is not None |
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228 |
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229 @property |
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230 def has_hash(self): |
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231 # type: () -> bool |
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232 return self.hash_name is not None |
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233 |
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234 def is_hash_allowed(self, hashes): |
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235 # type: (Optional[Hashes]) -> bool |
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236 """ |
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237 Return True if the link has a hash and it is allowed. |
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238 """ |
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239 if hashes is None or not self.has_hash: |
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240 return False |
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241 # Assert non-None so mypy knows self.hash_name and self.hash are str. |
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242 assert self.hash_name is not None |
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243 assert self.hash is not None |
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244 |
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245 return hashes.is_hash_allowed(self.hash_name, hex_digest=self.hash) |