Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/pip/_internal/operations/install/wheel.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 """Support for installing and building the "wheel" binary package format. |
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2 """ |
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3 |
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4 import collections |
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5 import compileall |
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6 import contextlib |
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7 import csv |
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8 import importlib |
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9 import logging |
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10 import os.path |
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11 import re |
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12 import shutil |
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13 import sys |
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14 import warnings |
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15 from base64 import urlsafe_b64encode |
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16 from itertools import chain, filterfalse, starmap |
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17 from zipfile import ZipFile |
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18 |
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19 from pip._vendor import pkg_resources |
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20 from pip._vendor.distlib.scripts import ScriptMaker |
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21 from pip._vendor.distlib.util import get_export_entry |
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22 from pip._vendor.six import ensure_str, ensure_text, reraise |
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23 |
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24 from pip._internal.exceptions import InstallationError |
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25 from pip._internal.locations import get_major_minor_version |
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26 from pip._internal.models.direct_url import DIRECT_URL_METADATA_NAME, DirectUrl |
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27 from pip._internal.models.scheme import SCHEME_KEYS |
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28 from pip._internal.utils.filesystem import adjacent_tmp_file, replace |
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29 from pip._internal.utils.misc import captured_stdout, ensure_dir, hash_file, partition |
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30 from pip._internal.utils.typing import MYPY_CHECK_RUNNING |
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31 from pip._internal.utils.unpacking import ( |
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32 current_umask, |
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33 is_within_directory, |
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34 set_extracted_file_to_default_mode_plus_executable, |
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35 zip_item_is_executable, |
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36 ) |
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37 from pip._internal.utils.wheel import parse_wheel, pkg_resources_distribution_for_wheel |
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38 |
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39 # Use the custom cast function at runtime to make cast work, |
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40 # and import typing.cast when performing pre-commit and type |
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41 # checks |
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42 if not MYPY_CHECK_RUNNING: |
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43 from pip._internal.utils.typing import cast |
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44 else: |
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45 from email.message import Message |
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46 from typing import ( |
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47 IO, |
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48 Any, |
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49 BinaryIO, |
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50 Callable, |
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51 Dict, |
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52 Iterable, |
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53 Iterator, |
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54 List, |
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55 NewType, |
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56 Optional, |
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57 Protocol, |
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58 Sequence, |
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59 Set, |
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60 Tuple, |
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61 Union, |
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62 cast, |
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63 ) |
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64 from zipfile import ZipInfo |
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65 |
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66 from pip._vendor.pkg_resources import Distribution |
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67 |
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68 from pip._internal.models.scheme import Scheme |
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69 |
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70 RecordPath = NewType('RecordPath', str) |
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71 InstalledCSVRow = Tuple[RecordPath, str, Union[int, str]] |
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72 |
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73 class File(Protocol): |
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74 src_record_path = None # type: RecordPath |
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75 dest_path = None # type: str |
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76 changed = None # type: bool |
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77 |
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78 def save(self): |
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79 # type: () -> None |
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80 pass |
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81 |
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82 |
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83 logger = logging.getLogger(__name__) |
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84 |
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85 |
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86 def rehash(path, blocksize=1 << 20): |
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87 # type: (str, int) -> Tuple[str, str] |
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88 """Return (encoded_digest, length) for path using hashlib.sha256()""" |
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89 h, length = hash_file(path, blocksize) |
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90 digest = 'sha256=' + urlsafe_b64encode( |
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91 h.digest() |
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92 ).decode('latin1').rstrip('=') |
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93 return (digest, str(length)) |
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94 |
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95 |
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96 def csv_io_kwargs(mode): |
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97 # type: (str) -> Dict[str, Any] |
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98 """Return keyword arguments to properly open a CSV file |
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99 in the given mode. |
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100 """ |
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101 return {'mode': mode, 'newline': '', 'encoding': 'utf-8'} |
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102 |
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103 |
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104 def fix_script(path): |
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105 # type: (str) -> bool |
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106 """Replace #!python with #!/path/to/python |
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107 Return True if file was changed. |
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108 """ |
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109 # XXX RECORD hashes will need to be updated |
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110 assert os.path.isfile(path) |
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111 |
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112 with open(path, 'rb') as script: |
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113 firstline = script.readline() |
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114 if not firstline.startswith(b'#!python'): |
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115 return False |
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116 exename = sys.executable.encode(sys.getfilesystemencoding()) |
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117 firstline = b'#!' + exename + os.linesep.encode("ascii") |
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118 rest = script.read() |
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119 with open(path, 'wb') as script: |
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120 script.write(firstline) |
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121 script.write(rest) |
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122 return True |
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123 |
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124 |
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125 def wheel_root_is_purelib(metadata): |
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126 # type: (Message) -> bool |
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127 return metadata.get("Root-Is-Purelib", "").lower() == "true" |
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128 |
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129 |
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130 def get_entrypoints(distribution): |
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131 # type: (Distribution) -> Tuple[Dict[str, str], Dict[str, str]] |
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132 # get the entry points and then the script names |
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133 try: |
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134 console = distribution.get_entry_map('console_scripts') |
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135 gui = distribution.get_entry_map('gui_scripts') |
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136 except KeyError: |
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137 # Our dict-based Distribution raises KeyError if entry_points.txt |
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138 # doesn't exist. |
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139 return {}, {} |
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140 |
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141 def _split_ep(s): |
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142 # type: (pkg_resources.EntryPoint) -> Tuple[str, str] |
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143 """get the string representation of EntryPoint, |
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144 remove space and split on '=' |
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145 """ |
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146 split_parts = str(s).replace(" ", "").split("=") |
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147 return split_parts[0], split_parts[1] |
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148 |
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149 # convert the EntryPoint objects into strings with module:function |
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150 console = dict(_split_ep(v) for v in console.values()) |
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151 gui = dict(_split_ep(v) for v in gui.values()) |
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152 return console, gui |
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153 |
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154 |
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155 def message_about_scripts_not_on_PATH(scripts): |
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156 # type: (Sequence[str]) -> Optional[str] |
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157 """Determine if any scripts are not on PATH and format a warning. |
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158 Returns a warning message if one or more scripts are not on PATH, |
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159 otherwise None. |
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160 """ |
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161 if not scripts: |
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162 return None |
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163 |
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164 # Group scripts by the path they were installed in |
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165 grouped_by_dir = collections.defaultdict(set) # type: Dict[str, Set[str]] |
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166 for destfile in scripts: |
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167 parent_dir = os.path.dirname(destfile) |
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168 script_name = os.path.basename(destfile) |
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169 grouped_by_dir[parent_dir].add(script_name) |
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170 |
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171 # We don't want to warn for directories that are on PATH. |
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172 not_warn_dirs = [ |
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173 os.path.normcase(i).rstrip(os.sep) for i in |
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174 os.environ.get("PATH", "").split(os.pathsep) |
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175 ] |
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176 # If an executable sits with sys.executable, we don't warn for it. |
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177 # This covers the case of venv invocations without activating the venv. |
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178 not_warn_dirs.append(os.path.normcase(os.path.dirname(sys.executable))) |
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179 warn_for = { |
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180 parent_dir: scripts for parent_dir, scripts in grouped_by_dir.items() |
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181 if os.path.normcase(parent_dir) not in not_warn_dirs |
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182 } # type: Dict[str, Set[str]] |
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183 if not warn_for: |
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184 return None |
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185 |
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186 # Format a message |
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187 msg_lines = [] |
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188 for parent_dir, dir_scripts in warn_for.items(): |
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189 sorted_scripts = sorted(dir_scripts) # type: List[str] |
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190 if len(sorted_scripts) == 1: |
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191 start_text = "script {} is".format(sorted_scripts[0]) |
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192 else: |
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193 start_text = "scripts {} are".format( |
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194 ", ".join(sorted_scripts[:-1]) + " and " + sorted_scripts[-1] |
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195 ) |
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196 |
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197 msg_lines.append( |
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198 "The {} installed in '{}' which is not on PATH." |
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199 .format(start_text, parent_dir) |
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200 ) |
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201 |
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202 last_line_fmt = ( |
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203 "Consider adding {} to PATH or, if you prefer " |
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204 "to suppress this warning, use --no-warn-script-location." |
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205 ) |
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206 if len(msg_lines) == 1: |
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207 msg_lines.append(last_line_fmt.format("this directory")) |
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208 else: |
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209 msg_lines.append(last_line_fmt.format("these directories")) |
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210 |
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211 # Add a note if any directory starts with ~ |
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212 warn_for_tilde = any( |
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213 i[0] == "~" for i in os.environ.get("PATH", "").split(os.pathsep) if i |
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214 ) |
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215 if warn_for_tilde: |
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216 tilde_warning_msg = ( |
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217 "NOTE: The current PATH contains path(s) starting with `~`, " |
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218 "which may not be expanded by all applications." |
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219 ) |
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220 msg_lines.append(tilde_warning_msg) |
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221 |
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222 # Returns the formatted multiline message |
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223 return "\n".join(msg_lines) |
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224 |
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225 |
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226 def _normalized_outrows(outrows): |
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227 # type: (Iterable[InstalledCSVRow]) -> List[Tuple[str, str, str]] |
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228 """Normalize the given rows of a RECORD file. |
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229 |
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230 Items in each row are converted into str. Rows are then sorted to make |
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231 the value more predictable for tests. |
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232 |
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233 Each row is a 3-tuple (path, hash, size) and corresponds to a record of |
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234 a RECORD file (see PEP 376 and PEP 427 for details). For the rows |
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235 passed to this function, the size can be an integer as an int or string, |
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236 or the empty string. |
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237 """ |
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238 # Normally, there should only be one row per path, in which case the |
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239 # second and third elements don't come into play when sorting. |
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240 # However, in cases in the wild where a path might happen to occur twice, |
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241 # we don't want the sort operation to trigger an error (but still want |
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242 # determinism). Since the third element can be an int or string, we |
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243 # coerce each element to a string to avoid a TypeError in this case. |
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244 # For additional background, see-- |
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245 # https://github.com/pypa/pip/issues/5868 |
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246 return sorted( |
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247 (ensure_str(record_path, encoding='utf-8'), hash_, str(size)) |
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248 for record_path, hash_, size in outrows |
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249 ) |
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250 |
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251 |
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252 def _record_to_fs_path(record_path): |
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253 # type: (RecordPath) -> str |
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254 return record_path |
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255 |
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256 |
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257 def _fs_to_record_path(path, relative_to=None): |
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258 # type: (str, Optional[str]) -> RecordPath |
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259 if relative_to is not None: |
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260 # On Windows, do not handle relative paths if they belong to different |
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261 # logical disks |
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262 if os.path.splitdrive(path)[0].lower() == \ |
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263 os.path.splitdrive(relative_to)[0].lower(): |
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264 path = os.path.relpath(path, relative_to) |
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265 path = path.replace(os.path.sep, '/') |
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266 return cast('RecordPath', path) |
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267 |
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268 |
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269 def _parse_record_path(record_column): |
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270 # type: (str) -> RecordPath |
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271 p = ensure_text(record_column, encoding='utf-8') |
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272 return cast('RecordPath', p) |
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273 |
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274 |
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275 def get_csv_rows_for_installed( |
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276 old_csv_rows, # type: List[List[str]] |
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277 installed, # type: Dict[RecordPath, RecordPath] |
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278 changed, # type: Set[RecordPath] |
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279 generated, # type: List[str] |
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280 lib_dir, # type: str |
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281 ): |
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282 # type: (...) -> List[InstalledCSVRow] |
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283 """ |
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284 :param installed: A map from archive RECORD path to installation RECORD |
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285 path. |
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286 """ |
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287 installed_rows = [] # type: List[InstalledCSVRow] |
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288 for row in old_csv_rows: |
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289 if len(row) > 3: |
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290 logger.warning('RECORD line has more than three elements: %s', row) |
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291 old_record_path = _parse_record_path(row[0]) |
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292 new_record_path = installed.pop(old_record_path, old_record_path) |
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293 if new_record_path in changed: |
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294 digest, length = rehash(_record_to_fs_path(new_record_path)) |
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295 else: |
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296 digest = row[1] if len(row) > 1 else '' |
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297 length = row[2] if len(row) > 2 else '' |
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298 installed_rows.append((new_record_path, digest, length)) |
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299 for f in generated: |
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300 path = _fs_to_record_path(f, lib_dir) |
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301 digest, length = rehash(f) |
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302 installed_rows.append((path, digest, length)) |
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303 for installed_record_path in installed.values(): |
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304 installed_rows.append((installed_record_path, '', '')) |
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305 return installed_rows |
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306 |
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307 |
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308 def get_console_script_specs(console): |
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309 # type: (Dict[str, str]) -> List[str] |
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310 """ |
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311 Given the mapping from entrypoint name to callable, return the relevant |
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312 console script specs. |
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313 """ |
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314 # Don't mutate caller's version |
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315 console = console.copy() |
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316 |
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317 scripts_to_generate = [] |
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318 |
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319 # Special case pip and setuptools to generate versioned wrappers |
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320 # |
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321 # The issue is that some projects (specifically, pip and setuptools) use |
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322 # code in setup.py to create "versioned" entry points - pip2.7 on Python |
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323 # 2.7, pip3.3 on Python 3.3, etc. But these entry points are baked into |
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324 # the wheel metadata at build time, and so if the wheel is installed with |
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325 # a *different* version of Python the entry points will be wrong. The |
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326 # correct fix for this is to enhance the metadata to be able to describe |
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327 # such versioned entry points, but that won't happen till Metadata 2.0 is |
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328 # available. |
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329 # In the meantime, projects using versioned entry points will either have |
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330 # incorrect versioned entry points, or they will not be able to distribute |
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331 # "universal" wheels (i.e., they will need a wheel per Python version). |
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332 # |
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333 # Because setuptools and pip are bundled with _ensurepip and virtualenv, |
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334 # we need to use universal wheels. So, as a stopgap until Metadata 2.0, we |
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335 # override the versioned entry points in the wheel and generate the |
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336 # correct ones. This code is purely a short-term measure until Metadata 2.0 |
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337 # is available. |
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338 # |
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339 # To add the level of hack in this section of code, in order to support |
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340 # ensurepip this code will look for an ``ENSUREPIP_OPTIONS`` environment |
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341 # variable which will control which version scripts get installed. |
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342 # |
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343 # ENSUREPIP_OPTIONS=altinstall |
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344 # - Only pipX.Y and easy_install-X.Y will be generated and installed |
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345 # ENSUREPIP_OPTIONS=install |
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346 # - pipX.Y, pipX, easy_install-X.Y will be generated and installed. Note |
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347 # that this option is technically if ENSUREPIP_OPTIONS is set and is |
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348 # not altinstall |
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349 # DEFAULT |
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350 # - The default behavior is to install pip, pipX, pipX.Y, easy_install |
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351 # and easy_install-X.Y. |
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352 pip_script = console.pop('pip', None) |
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353 if pip_script: |
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354 if "ENSUREPIP_OPTIONS" not in os.environ: |
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355 scripts_to_generate.append('pip = ' + pip_script) |
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356 |
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357 if os.environ.get("ENSUREPIP_OPTIONS", "") != "altinstall": |
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358 scripts_to_generate.append( |
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359 'pip{} = {}'.format(sys.version_info[0], pip_script) |
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360 ) |
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361 |
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362 scripts_to_generate.append( |
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363 f'pip{get_major_minor_version()} = {pip_script}' |
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364 ) |
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365 # Delete any other versioned pip entry points |
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366 pip_ep = [k for k in console if re.match(r'pip(\d(\.\d)?)?$', k)] |
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367 for k in pip_ep: |
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368 del console[k] |
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369 easy_install_script = console.pop('easy_install', None) |
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370 if easy_install_script: |
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371 if "ENSUREPIP_OPTIONS" not in os.environ: |
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372 scripts_to_generate.append( |
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373 'easy_install = ' + easy_install_script |
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374 ) |
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375 |
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376 scripts_to_generate.append( |
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377 'easy_install-{} = {}'.format( |
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378 get_major_minor_version(), easy_install_script |
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379 ) |
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380 ) |
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381 # Delete any other versioned easy_install entry points |
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382 easy_install_ep = [ |
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383 k for k in console if re.match(r'easy_install(-\d\.\d)?$', k) |
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384 ] |
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385 for k in easy_install_ep: |
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386 del console[k] |
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387 |
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388 # Generate the console entry points specified in the wheel |
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389 scripts_to_generate.extend(starmap('{} = {}'.format, console.items())) |
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390 |
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391 return scripts_to_generate |
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392 |
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393 |
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394 class ZipBackedFile: |
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395 def __init__(self, src_record_path, dest_path, zip_file): |
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396 # type: (RecordPath, str, ZipFile) -> None |
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397 self.src_record_path = src_record_path |
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398 self.dest_path = dest_path |
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399 self._zip_file = zip_file |
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400 self.changed = False |
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401 |
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402 def _getinfo(self): |
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403 # type: () -> ZipInfo |
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404 return self._zip_file.getinfo(self.src_record_path) |
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405 |
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406 def save(self): |
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407 # type: () -> None |
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408 # directory creation is lazy and after file filtering |
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409 # to ensure we don't install empty dirs; empty dirs can't be |
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410 # uninstalled. |
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411 parent_dir = os.path.dirname(self.dest_path) |
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412 ensure_dir(parent_dir) |
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413 |
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414 # When we open the output file below, any existing file is truncated |
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415 # before we start writing the new contents. This is fine in most |
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416 # cases, but can cause a segfault if pip has loaded a shared |
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417 # object (e.g. from pyopenssl through its vendored urllib3) |
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418 # Since the shared object is mmap'd an attempt to call a |
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419 # symbol in it will then cause a segfault. Unlinking the file |
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420 # allows writing of new contents while allowing the process to |
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421 # continue to use the old copy. |
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422 if os.path.exists(self.dest_path): |
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423 os.unlink(self.dest_path) |
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424 |
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425 zipinfo = self._getinfo() |
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426 |
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427 with self._zip_file.open(zipinfo) as f: |
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428 with open(self.dest_path, "wb") as dest: |
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429 shutil.copyfileobj(f, dest) |
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430 |
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431 if zip_item_is_executable(zipinfo): |
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432 set_extracted_file_to_default_mode_plus_executable(self.dest_path) |
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433 |
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434 |
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435 class ScriptFile: |
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436 def __init__(self, file): |
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437 # type: (File) -> None |
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438 self._file = file |
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439 self.src_record_path = self._file.src_record_path |
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440 self.dest_path = self._file.dest_path |
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441 self.changed = False |
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442 |
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443 def save(self): |
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444 # type: () -> None |
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445 self._file.save() |
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446 self.changed = fix_script(self.dest_path) |
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447 |
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448 |
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449 class MissingCallableSuffix(InstallationError): |
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450 def __init__(self, entry_point): |
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451 # type: (str) -> None |
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452 super().__init__( |
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453 "Invalid script entry point: {} - A callable " |
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454 "suffix is required. Cf https://packaging.python.org/" |
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455 "specifications/entry-points/#use-for-scripts for more " |
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456 "information.".format(entry_point) |
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457 ) |
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458 |
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459 |
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460 def _raise_for_invalid_entrypoint(specification): |
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461 # type: (str) -> None |
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462 entry = get_export_entry(specification) |
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463 if entry is not None and entry.suffix is None: |
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464 raise MissingCallableSuffix(str(entry)) |
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465 |
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466 |
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467 class PipScriptMaker(ScriptMaker): |
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468 def make(self, specification, options=None): |
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469 # type: (str, Dict[str, Any]) -> List[str] |
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470 _raise_for_invalid_entrypoint(specification) |
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471 return super().make(specification, options) |
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472 |
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473 |
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474 def _install_wheel( |
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475 name, # type: str |
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476 wheel_zip, # type: ZipFile |
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477 wheel_path, # type: str |
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478 scheme, # type: Scheme |
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479 pycompile=True, # type: bool |
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480 warn_script_location=True, # type: bool |
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481 direct_url=None, # type: Optional[DirectUrl] |
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482 requested=False, # type: bool |
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483 ): |
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484 # type: (...) -> None |
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485 """Install a wheel. |
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486 |
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487 :param name: Name of the project to install |
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488 :param wheel_zip: open ZipFile for wheel being installed |
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489 :param scheme: Distutils scheme dictating the install directories |
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490 :param req_description: String used in place of the requirement, for |
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491 logging |
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492 :param pycompile: Whether to byte-compile installed Python files |
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493 :param warn_script_location: Whether to check that scripts are installed |
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494 into a directory on PATH |
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495 :raises UnsupportedWheel: |
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496 * when the directory holds an unpacked wheel with incompatible |
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497 Wheel-Version |
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498 * when the .dist-info dir does not match the wheel |
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499 """ |
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500 info_dir, metadata = parse_wheel(wheel_zip, name) |
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501 |
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502 if wheel_root_is_purelib(metadata): |
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503 lib_dir = scheme.purelib |
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504 else: |
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505 lib_dir = scheme.platlib |
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506 |
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507 # Record details of the files moved |
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508 # installed = files copied from the wheel to the destination |
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509 # changed = files changed while installing (scripts #! line typically) |
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510 # generated = files newly generated during the install (script wrappers) |
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511 installed = {} # type: Dict[RecordPath, RecordPath] |
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512 changed = set() # type: Set[RecordPath] |
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513 generated = [] # type: List[str] |
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514 |
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515 def record_installed(srcfile, destfile, modified=False): |
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516 # type: (RecordPath, str, bool) -> None |
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517 """Map archive RECORD paths to installation RECORD paths.""" |
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518 newpath = _fs_to_record_path(destfile, lib_dir) |
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519 installed[srcfile] = newpath |
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520 if modified: |
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521 changed.add(_fs_to_record_path(destfile)) |
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522 |
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523 def all_paths(): |
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524 # type: () -> Iterable[RecordPath] |
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525 names = wheel_zip.namelist() |
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526 # If a flag is set, names may be unicode in Python 2. We convert to |
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527 # text explicitly so these are valid for lookup in RECORD. |
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528 decoded_names = map(ensure_text, names) |
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529 for name in decoded_names: |
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530 yield cast("RecordPath", name) |
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531 |
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532 def is_dir_path(path): |
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533 # type: (RecordPath) -> bool |
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534 return path.endswith("/") |
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535 |
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536 def assert_no_path_traversal(dest_dir_path, target_path): |
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537 # type: (str, str) -> None |
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538 if not is_within_directory(dest_dir_path, target_path): |
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539 message = ( |
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540 "The wheel {!r} has a file {!r} trying to install" |
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541 " outside the target directory {!r}" |
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542 ) |
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543 raise InstallationError( |
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544 message.format(wheel_path, target_path, dest_dir_path) |
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545 ) |
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546 |
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547 def root_scheme_file_maker(zip_file, dest): |
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548 # type: (ZipFile, str) -> Callable[[RecordPath], File] |
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549 def make_root_scheme_file(record_path): |
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550 # type: (RecordPath) -> File |
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551 normed_path = os.path.normpath(record_path) |
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552 dest_path = os.path.join(dest, normed_path) |
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553 assert_no_path_traversal(dest, dest_path) |
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554 return ZipBackedFile(record_path, dest_path, zip_file) |
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555 |
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556 return make_root_scheme_file |
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557 |
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558 def data_scheme_file_maker(zip_file, scheme): |
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559 # type: (ZipFile, Scheme) -> Callable[[RecordPath], File] |
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560 scheme_paths = {} |
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561 for key in SCHEME_KEYS: |
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562 encoded_key = ensure_text(key) |
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563 scheme_paths[encoded_key] = ensure_text( |
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564 getattr(scheme, key), encoding=sys.getfilesystemencoding() |
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565 ) |
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566 |
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567 def make_data_scheme_file(record_path): |
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568 # type: (RecordPath) -> File |
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569 normed_path = os.path.normpath(record_path) |
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570 try: |
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571 _, scheme_key, dest_subpath = normed_path.split(os.path.sep, 2) |
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572 except ValueError: |
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573 message = ( |
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574 "Unexpected file in {}: {!r}. .data directory contents" |
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575 " should be named like: '<scheme key>/<path>'." |
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576 ).format(wheel_path, record_path) |
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577 raise InstallationError(message) |
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578 |
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579 try: |
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580 scheme_path = scheme_paths[scheme_key] |
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581 except KeyError: |
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582 valid_scheme_keys = ", ".join(sorted(scheme_paths)) |
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583 message = ( |
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584 "Unknown scheme key used in {}: {} (for file {!r}). .data" |
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585 " directory contents should be in subdirectories named" |
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586 " with a valid scheme key ({})" |
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587 ).format( |
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588 wheel_path, scheme_key, record_path, valid_scheme_keys |
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589 ) |
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590 raise InstallationError(message) |
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591 |
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592 dest_path = os.path.join(scheme_path, dest_subpath) |
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593 assert_no_path_traversal(scheme_path, dest_path) |
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594 return ZipBackedFile(record_path, dest_path, zip_file) |
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595 |
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596 return make_data_scheme_file |
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597 |
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598 def is_data_scheme_path(path): |
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599 # type: (RecordPath) -> bool |
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600 return path.split("/", 1)[0].endswith(".data") |
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601 |
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602 paths = all_paths() |
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603 file_paths = filterfalse(is_dir_path, paths) |
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604 root_scheme_paths, data_scheme_paths = partition( |
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605 is_data_scheme_path, file_paths |
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606 ) |
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607 |
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608 make_root_scheme_file = root_scheme_file_maker( |
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609 wheel_zip, |
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610 ensure_text(lib_dir, encoding=sys.getfilesystemencoding()), |
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611 ) |
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612 files = map(make_root_scheme_file, root_scheme_paths) |
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613 |
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614 def is_script_scheme_path(path): |
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615 # type: (RecordPath) -> bool |
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616 parts = path.split("/", 2) |
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617 return ( |
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618 len(parts) > 2 and |
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619 parts[0].endswith(".data") and |
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620 parts[1] == "scripts" |
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621 ) |
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622 |
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623 other_scheme_paths, script_scheme_paths = partition( |
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624 is_script_scheme_path, data_scheme_paths |
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625 ) |
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626 |
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627 make_data_scheme_file = data_scheme_file_maker(wheel_zip, scheme) |
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628 other_scheme_files = map(make_data_scheme_file, other_scheme_paths) |
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629 files = chain(files, other_scheme_files) |
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630 |
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631 # Get the defined entry points |
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632 distribution = pkg_resources_distribution_for_wheel( |
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633 wheel_zip, name, wheel_path |
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634 ) |
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635 console, gui = get_entrypoints(distribution) |
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636 |
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637 def is_entrypoint_wrapper(file): |
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638 # type: (File) -> bool |
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639 # EP, EP.exe and EP-script.py are scripts generated for |
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640 # entry point EP by setuptools |
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641 path = file.dest_path |
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642 name = os.path.basename(path) |
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643 if name.lower().endswith('.exe'): |
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644 matchname = name[:-4] |
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645 elif name.lower().endswith('-script.py'): |
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646 matchname = name[:-10] |
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647 elif name.lower().endswith(".pya"): |
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648 matchname = name[:-4] |
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649 else: |
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650 matchname = name |
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651 # Ignore setuptools-generated scripts |
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652 return (matchname in console or matchname in gui) |
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653 |
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654 script_scheme_files = map(make_data_scheme_file, script_scheme_paths) |
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655 script_scheme_files = filterfalse( |
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656 is_entrypoint_wrapper, script_scheme_files |
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657 ) |
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658 script_scheme_files = map(ScriptFile, script_scheme_files) |
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659 files = chain(files, script_scheme_files) |
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660 |
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661 for file in files: |
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662 file.save() |
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663 record_installed(file.src_record_path, file.dest_path, file.changed) |
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664 |
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665 def pyc_source_file_paths(): |
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666 # type: () -> Iterator[str] |
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667 # We de-duplicate installation paths, since there can be overlap (e.g. |
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668 # file in .data maps to same location as file in wheel root). |
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669 # Sorting installation paths makes it easier to reproduce and debug |
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670 # issues related to permissions on existing files. |
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671 for installed_path in sorted(set(installed.values())): |
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672 full_installed_path = os.path.join(lib_dir, installed_path) |
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673 if not os.path.isfile(full_installed_path): |
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674 continue |
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675 if not full_installed_path.endswith('.py'): |
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676 continue |
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677 yield full_installed_path |
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678 |
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679 def pyc_output_path(path): |
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680 # type: (str) -> str |
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681 """Return the path the pyc file would have been written to. |
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682 """ |
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683 return importlib.util.cache_from_source(path) |
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684 |
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685 # Compile all of the pyc files for the installed files |
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686 if pycompile: |
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687 with captured_stdout() as stdout: |
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688 with warnings.catch_warnings(): |
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689 warnings.filterwarnings('ignore') |
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690 for path in pyc_source_file_paths(): |
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691 # Python 2's `compileall.compile_file` requires a str in |
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692 # error cases, so we must convert to the native type. |
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693 path_arg = ensure_str( |
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694 path, encoding=sys.getfilesystemencoding() |
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695 ) |
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696 success = compileall.compile_file( |
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697 path_arg, force=True, quiet=True |
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698 ) |
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699 if success: |
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700 pyc_path = pyc_output_path(path) |
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701 assert os.path.exists(pyc_path) |
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702 pyc_record_path = cast( |
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703 "RecordPath", pyc_path.replace(os.path.sep, "/") |
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704 ) |
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705 record_installed(pyc_record_path, pyc_path) |
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706 logger.debug(stdout.getvalue()) |
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707 |
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708 maker = PipScriptMaker(None, scheme.scripts) |
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709 |
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710 # Ensure old scripts are overwritten. |
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711 # See https://github.com/pypa/pip/issues/1800 |
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712 maker.clobber = True |
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713 |
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714 # Ensure we don't generate any variants for scripts because this is almost |
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715 # never what somebody wants. |
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716 # See https://bitbucket.org/pypa/distlib/issue/35/ |
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717 maker.variants = {''} |
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718 |
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719 # This is required because otherwise distlib creates scripts that are not |
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720 # executable. |
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721 # See https://bitbucket.org/pypa/distlib/issue/32/ |
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722 maker.set_mode = True |
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723 |
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724 # Generate the console and GUI entry points specified in the wheel |
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725 scripts_to_generate = get_console_script_specs(console) |
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726 |
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727 gui_scripts_to_generate = list(starmap('{} = {}'.format, gui.items())) |
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728 |
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729 generated_console_scripts = maker.make_multiple(scripts_to_generate) |
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730 generated.extend(generated_console_scripts) |
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731 |
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732 generated.extend( |
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733 maker.make_multiple(gui_scripts_to_generate, {'gui': True}) |
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734 ) |
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735 |
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736 if warn_script_location: |
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737 msg = message_about_scripts_not_on_PATH(generated_console_scripts) |
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738 if msg is not None: |
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739 logger.warning(msg) |
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740 |
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741 generated_file_mode = 0o666 & ~current_umask() |
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742 |
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743 @contextlib.contextmanager |
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744 def _generate_file(path, **kwargs): |
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745 # type: (str, **Any) -> Iterator[BinaryIO] |
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746 with adjacent_tmp_file(path, **kwargs) as f: |
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747 yield f |
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748 os.chmod(f.name, generated_file_mode) |
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749 replace(f.name, path) |
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750 |
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751 dest_info_dir = os.path.join(lib_dir, info_dir) |
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752 |
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753 # Record pip as the installer |
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754 installer_path = os.path.join(dest_info_dir, 'INSTALLER') |
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755 with _generate_file(installer_path) as installer_file: |
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756 installer_file.write(b'pip\n') |
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757 generated.append(installer_path) |
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758 |
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759 # Record the PEP 610 direct URL reference |
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760 if direct_url is not None: |
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761 direct_url_path = os.path.join(dest_info_dir, DIRECT_URL_METADATA_NAME) |
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762 with _generate_file(direct_url_path) as direct_url_file: |
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763 direct_url_file.write(direct_url.to_json().encode("utf-8")) |
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764 generated.append(direct_url_path) |
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765 |
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766 # Record the REQUESTED file |
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767 if requested: |
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768 requested_path = os.path.join(dest_info_dir, 'REQUESTED') |
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769 with open(requested_path, "w"): |
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770 pass |
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771 generated.append(requested_path) |
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772 |
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773 record_text = distribution.get_metadata('RECORD') |
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774 record_rows = list(csv.reader(record_text.splitlines())) |
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775 |
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776 rows = get_csv_rows_for_installed( |
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777 record_rows, |
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778 installed=installed, |
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779 changed=changed, |
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780 generated=generated, |
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781 lib_dir=lib_dir) |
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782 |
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783 # Record details of all files installed |
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784 record_path = os.path.join(dest_info_dir, 'RECORD') |
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785 |
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786 with _generate_file(record_path, **csv_io_kwargs('w')) as record_file: |
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787 # The type mypy infers for record_file is different for Python 3 |
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788 # (typing.IO[Any]) and Python 2 (typing.BinaryIO). We explicitly |
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789 # cast to typing.IO[str] as a workaround. |
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790 writer = csv.writer(cast('IO[str]', record_file)) |
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791 writer.writerows(_normalized_outrows(rows)) |
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792 |
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793 |
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794 @contextlib.contextmanager |
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795 def req_error_context(req_description): |
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796 # type: (str) -> Iterator[None] |
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797 try: |
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798 yield |
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799 except InstallationError as e: |
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800 message = "For req: {}. {}".format(req_description, e.args[0]) |
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801 reraise( |
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802 InstallationError, InstallationError(message), sys.exc_info()[2] |
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803 ) |
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804 |
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805 |
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806 def install_wheel( |
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807 name, # type: str |
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808 wheel_path, # type: str |
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809 scheme, # type: Scheme |
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810 req_description, # type: str |
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811 pycompile=True, # type: bool |
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812 warn_script_location=True, # type: bool |
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813 direct_url=None, # type: Optional[DirectUrl] |
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814 requested=False, # type: bool |
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815 ): |
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816 # type: (...) -> None |
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817 with ZipFile(wheel_path, allowZip64=True) as z: |
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818 with req_error_context(req_description): |
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819 _install_wheel( |
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820 name=name, |
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821 wheel_zip=z, |
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822 wheel_path=wheel_path, |
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823 scheme=scheme, |
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824 pycompile=pycompile, |
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825 warn_script_location=warn_script_location, |
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826 direct_url=direct_url, |
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827 requested=requested, |
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828 ) |