Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/pip/_internal/commands/configuration.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 logging |
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2 import os |
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3 import subprocess |
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4 |
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5 from pip._internal.cli.base_command import Command |
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6 from pip._internal.cli.status_codes import ERROR, SUCCESS |
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7 from pip._internal.configuration import Configuration, get_configuration_files, kinds |
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8 from pip._internal.exceptions import PipError |
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9 from pip._internal.utils.logging import indent_log |
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10 from pip._internal.utils.misc import get_prog, write_output |
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11 from pip._internal.utils.typing import MYPY_CHECK_RUNNING |
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12 |
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13 if MYPY_CHECK_RUNNING: |
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14 from optparse import Values |
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15 from typing import Any, List, Optional |
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16 |
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17 from pip._internal.configuration import Kind |
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18 |
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19 logger = logging.getLogger(__name__) |
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20 |
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21 |
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22 class ConfigurationCommand(Command): |
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23 """ |
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24 Manage local and global configuration. |
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25 |
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26 Subcommands: |
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27 |
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28 - list: List the active configuration (or from the file specified) |
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29 - edit: Edit the configuration file in an editor |
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30 - get: Get the value associated with name |
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31 - set: Set the name=value |
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32 - unset: Unset the value associated with name |
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33 - debug: List the configuration files and values defined under them |
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34 |
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35 If none of --user, --global and --site are passed, a virtual |
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36 environment configuration file is used if one is active and the file |
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37 exists. Otherwise, all modifications happen on the to the user file by |
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38 default. |
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39 """ |
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40 |
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41 ignore_require_venv = True |
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42 usage = """ |
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43 %prog [<file-option>] list |
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44 %prog [<file-option>] [--editor <editor-path>] edit |
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45 |
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46 %prog [<file-option>] get name |
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47 %prog [<file-option>] set name value |
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48 %prog [<file-option>] unset name |
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49 %prog [<file-option>] debug |
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50 """ |
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51 |
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52 def add_options(self): |
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53 # type: () -> None |
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54 self.cmd_opts.add_option( |
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55 '--editor', |
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56 dest='editor', |
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57 action='store', |
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58 default=None, |
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59 help=( |
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60 'Editor to use to edit the file. Uses VISUAL or EDITOR ' |
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61 'environment variables if not provided.' |
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62 ) |
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63 ) |
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64 |
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65 self.cmd_opts.add_option( |
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66 '--global', |
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67 dest='global_file', |
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68 action='store_true', |
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69 default=False, |
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70 help='Use the system-wide configuration file only' |
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71 ) |
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72 |
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73 self.cmd_opts.add_option( |
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74 '--user', |
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75 dest='user_file', |
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76 action='store_true', |
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77 default=False, |
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78 help='Use the user configuration file only' |
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79 ) |
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80 |
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81 self.cmd_opts.add_option( |
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82 '--site', |
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83 dest='site_file', |
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84 action='store_true', |
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85 default=False, |
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86 help='Use the current environment configuration file only' |
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87 ) |
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88 |
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89 self.parser.insert_option_group(0, self.cmd_opts) |
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90 |
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91 def run(self, options, args): |
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92 # type: (Values, List[str]) -> int |
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93 handlers = { |
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94 "list": self.list_values, |
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95 "edit": self.open_in_editor, |
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96 "get": self.get_name, |
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97 "set": self.set_name_value, |
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98 "unset": self.unset_name, |
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99 "debug": self.list_config_values, |
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100 } |
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101 |
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102 # Determine action |
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103 if not args or args[0] not in handlers: |
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104 logger.error( |
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105 "Need an action (%s) to perform.", |
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106 ", ".join(sorted(handlers)), |
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107 ) |
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108 return ERROR |
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109 |
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110 action = args[0] |
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111 |
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112 # Determine which configuration files are to be loaded |
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113 # Depends on whether the command is modifying. |
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114 try: |
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115 load_only = self._determine_file( |
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116 options, need_value=(action in ["get", "set", "unset", "edit"]) |
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117 ) |
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118 except PipError as e: |
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119 logger.error(e.args[0]) |
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120 return ERROR |
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121 |
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122 # Load a new configuration |
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123 self.configuration = Configuration( |
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124 isolated=options.isolated_mode, load_only=load_only |
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125 ) |
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126 self.configuration.load() |
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127 |
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128 # Error handling happens here, not in the action-handlers. |
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129 try: |
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130 handlers[action](options, args[1:]) |
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131 except PipError as e: |
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132 logger.error(e.args[0]) |
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133 return ERROR |
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134 |
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135 return SUCCESS |
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136 |
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137 def _determine_file(self, options, need_value): |
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138 # type: (Values, bool) -> Optional[Kind] |
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139 file_options = [key for key, value in ( |
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140 (kinds.USER, options.user_file), |
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141 (kinds.GLOBAL, options.global_file), |
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142 (kinds.SITE, options.site_file), |
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143 ) if value] |
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144 |
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145 if not file_options: |
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146 if not need_value: |
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147 return None |
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148 # Default to user, unless there's a site file. |
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149 elif any( |
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150 os.path.exists(site_config_file) |
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151 for site_config_file in get_configuration_files()[kinds.SITE] |
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152 ): |
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153 return kinds.SITE |
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154 else: |
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155 return kinds.USER |
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156 elif len(file_options) == 1: |
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157 return file_options[0] |
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158 |
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159 raise PipError( |
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160 "Need exactly one file to operate upon " |
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161 "(--user, --site, --global) to perform." |
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162 ) |
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163 |
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164 def list_values(self, options, args): |
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165 # type: (Values, List[str]) -> None |
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166 self._get_n_args(args, "list", n=0) |
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167 |
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168 for key, value in sorted(self.configuration.items()): |
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169 write_output("%s=%r", key, value) |
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170 |
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171 def get_name(self, options, args): |
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172 # type: (Values, List[str]) -> None |
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173 key = self._get_n_args(args, "get [name]", n=1) |
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174 value = self.configuration.get_value(key) |
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175 |
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176 write_output("%s", value) |
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177 |
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178 def set_name_value(self, options, args): |
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179 # type: (Values, List[str]) -> None |
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180 key, value = self._get_n_args(args, "set [name] [value]", n=2) |
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181 self.configuration.set_value(key, value) |
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182 |
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183 self._save_configuration() |
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184 |
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185 def unset_name(self, options, args): |
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186 # type: (Values, List[str]) -> None |
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187 key = self._get_n_args(args, "unset [name]", n=1) |
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188 self.configuration.unset_value(key) |
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189 |
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190 self._save_configuration() |
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191 |
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192 def list_config_values(self, options, args): |
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193 # type: (Values, List[str]) -> None |
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194 """List config key-value pairs across different config files""" |
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195 self._get_n_args(args, "debug", n=0) |
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196 |
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197 self.print_env_var_values() |
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198 # Iterate over config files and print if they exist, and the |
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199 # key-value pairs present in them if they do |
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200 for variant, files in sorted(self.configuration.iter_config_files()): |
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201 write_output("%s:", variant) |
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202 for fname in files: |
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203 with indent_log(): |
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204 file_exists = os.path.exists(fname) |
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205 write_output("%s, exists: %r", |
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206 fname, file_exists) |
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207 if file_exists: |
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208 self.print_config_file_values(variant) |
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209 |
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210 def print_config_file_values(self, variant): |
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211 # type: (Kind) -> None |
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212 """Get key-value pairs from the file of a variant""" |
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213 for name, value in self.configuration.\ |
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214 get_values_in_config(variant).items(): |
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215 with indent_log(): |
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216 write_output("%s: %s", name, value) |
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217 |
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218 def print_env_var_values(self): |
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219 # type: () -> None |
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220 """Get key-values pairs present as environment variables""" |
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221 write_output("%s:", 'env_var') |
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222 with indent_log(): |
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223 for key, value in sorted(self.configuration.get_environ_vars()): |
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224 env_var = f'PIP_{key.upper()}' |
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225 write_output("%s=%r", env_var, value) |
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226 |
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227 def open_in_editor(self, options, args): |
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228 # type: (Values, List[str]) -> None |
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229 editor = self._determine_editor(options) |
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230 |
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231 fname = self.configuration.get_file_to_edit() |
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232 if fname is None: |
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233 raise PipError("Could not determine appropriate file.") |
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234 |
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235 try: |
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236 subprocess.check_call([editor, fname]) |
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237 except subprocess.CalledProcessError as e: |
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238 raise PipError( |
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239 "Editor Subprocess exited with exit code {}" |
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240 .format(e.returncode) |
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241 ) |
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242 |
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243 def _get_n_args(self, args, example, n): |
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244 # type: (List[str], str, int) -> Any |
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245 """Helper to make sure the command got the right number of arguments |
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246 """ |
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247 if len(args) != n: |
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248 msg = ( |
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249 'Got unexpected number of arguments, expected {}. ' |
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250 '(example: "{} config {}")' |
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251 ).format(n, get_prog(), example) |
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252 raise PipError(msg) |
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253 |
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254 if n == 1: |
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255 return args[0] |
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256 else: |
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257 return args |
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258 |
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259 def _save_configuration(self): |
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260 # type: () -> None |
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261 # We successfully ran a modifying command. Need to save the |
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262 # configuration. |
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263 try: |
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264 self.configuration.save() |
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265 except Exception: |
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266 logger.exception( |
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267 "Unable to save configuration. Please report this as a bug." |
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268 ) |
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269 raise PipError("Internal Error.") |
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270 |
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271 def _determine_editor(self, options): |
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272 # type: (Values) -> str |
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273 if options.editor is not None: |
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274 return options.editor |
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275 elif "VISUAL" in os.environ: |
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276 return os.environ["VISUAL"] |
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277 elif "EDITOR" in os.environ: |
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278 return os.environ["EDITOR"] |
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279 else: |
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280 raise PipError("Could not determine editor to use.") |