Mercurial > repos > guerler > springsuite

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

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
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1
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1 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 (
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8 Configuration, get_configuration_files, kinds,
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9 )
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10 from pip._internal.exceptions import PipError
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11 from pip._internal.utils.deprecation import deprecated
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12 from pip._internal.utils.misc import get_prog
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13 from pip._internal.utils.virtualenv import running_under_virtualenv
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14
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15 logger = logging.getLogger(__name__)
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16
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17
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18 class ConfigurationCommand(Command):
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19 """Manage local and global configuration.
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20
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21 Subcommands:
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22
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23 list: List the active configuration (or from the file specified)
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24 edit: Edit the configuration file in an editor
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25 get: Get the value associated with name
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26 set: Set the name=value
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27 unset: Unset the value associated with name
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28
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29 If none of --user, --global and --site are passed, a virtual
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30 environment configuration file is used if one is active and the file
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31 exists. Otherwise, all modifications happen on the to the user file by
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32 default.
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33 """
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34
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35 name = 'config'
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36 usage = """
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37 %prog [<file-option>] list
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38 %prog [<file-option>] [--editor <editor-path>] edit
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39
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40 %prog [<file-option>] get name
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41 %prog [<file-option>] set name value
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42 %prog [<file-option>] unset name
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43 """
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44
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45 summary = "Manage local and global configuration."
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46
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47 def __init__(self, *args, **kwargs):
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48 super(ConfigurationCommand, self).__init__(*args, **kwargs)
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49
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50 self.configuration = None
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51
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52 self.cmd_opts.add_option(
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53 '--editor',
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54 dest='editor',
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55 action='store',
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56 default=None,
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57 help=(
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58 'Editor to use to edit the file. Uses VISUAL or EDITOR '
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59 'environment variables if not provided.'
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60 )
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61 )
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62
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63 self.cmd_opts.add_option(
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64 '--global',
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65 dest='global_file',
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66 action='store_true',
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67 default=False,
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68 help='Use the system-wide configuration file only'
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69 )
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70
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71 self.cmd_opts.add_option(
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72 '--user',
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73 dest='user_file',
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74 action='store_true',
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75 default=False,
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76 help='Use the user configuration file only'
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77 )
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78
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79 self.cmd_opts.add_option(
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80 '--site',
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81 dest='site_file',
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82 action='store_true',
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83 default=False,
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84 help='Use the current environment configuration file only'
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85 )
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86
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87 self.cmd_opts.add_option(
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88 '--venv',
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89 dest='venv_file',
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90 action='store_true',
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91 default=False,
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92 help=(
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93 '[Deprecated] Use the current environment configuration '
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94 'file in a virtual environment only'
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95 )
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96 )
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97
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98 self.parser.insert_option_group(0, self.cmd_opts)
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99
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100 def run(self, options, args):
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101 handlers = {
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102 "list": self.list_values,
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103 "edit": self.open_in_editor,
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104 "get": self.get_name,
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105 "set": self.set_name_value,
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106 "unset": self.unset_name
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107 }
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108
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109 # Determine action
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110 if not args or args[0] not in handlers:
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111 logger.error("Need an action ({}) to perform.".format(
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112 ", ".join(sorted(handlers)))
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113 )
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114 return ERROR
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115
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116 action = args[0]
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117
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118 # Determine which configuration files are to be loaded
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119 # Depends on whether the command is modifying.
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120 try:
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121 load_only = self._determine_file(
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122 options, need_value=(action in ["get", "set", "unset", "edit"])
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123 )
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124 except PipError as e:
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125 logger.error(e.args[0])
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126 return ERROR
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127
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128 # Load a new configuration
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129 self.configuration = Configuration(
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130 isolated=options.isolated_mode, load_only=load_only
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131 )
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132 self.configuration.load()
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133
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134 # Error handling happens here, not in the action-handlers.
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135 try:
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136 handlers[action](options, args[1:])
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137 except PipError as e:
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138 logger.error(e.args[0])
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139 return ERROR
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140
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141 return SUCCESS
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142
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143 def _determine_file(self, options, need_value):
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144 # Convert legacy venv_file option to site_file or error
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145 if options.venv_file and not options.site_file:
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146 if running_under_virtualenv():
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147 options.site_file = True
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148 deprecated(
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149 "The --venv option has been deprecated.",
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150 replacement="--site",
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151 gone_in="19.3",
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152 )
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153 else:
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154 raise PipError(
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155 "Legacy --venv option requires a virtual environment. "
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156 "Use --site instead."
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157 )
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158
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159 file_options = [key for key, value in (
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160 (kinds.USER, options.user_file),
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161 (kinds.GLOBAL, options.global_file),
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162 (kinds.SITE, options.site_file),
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163 ) if value]
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164
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165 if not file_options:
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166 if not need_value:
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167 return None
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168 # Default to user, unless there's a site file.
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169 elif any(
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170 os.path.exists(site_config_file)
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171 for site_config_file in get_configuration_files()[kinds.SITE]
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172 ):
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173 return kinds.SITE
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174 else:
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175 return kinds.USER
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176 elif len(file_options) == 1:
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177 return file_options[0]
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178
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179 raise PipError(
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180 "Need exactly one file to operate upon "
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181 "(--user, --site, --global) to perform."
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182 )
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183
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184 def list_values(self, options, args):
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185 self._get_n_args(args, "list", n=0)
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186
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187 for key, value in sorted(self.configuration.items()):
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188 logger.info("%s=%r", key, value)
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189
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190 def get_name(self, options, args):
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191 key = self._get_n_args(args, "get [name]", n=1)
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192 value = self.configuration.get_value(key)
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193
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194 logger.info("%s", value)
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195
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196 def set_name_value(self, options, args):
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197 key, value = self._get_n_args(args, "set [name] [value]", n=2)
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198 self.configuration.set_value(key, value)
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199
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200 self._save_configuration()
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201
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202 def unset_name(self, options, args):
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203 key = self._get_n_args(args, "unset [name]", n=1)
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204 self.configuration.unset_value(key)
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205
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206 self._save_configuration()
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207
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208 def open_in_editor(self, options, args):
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209 editor = self._determine_editor(options)
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210
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211 fname = self.configuration.get_file_to_edit()
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212 if fname is None:
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213 raise PipError("Could not determine appropriate file.")
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214
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215 try:
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216 subprocess.check_call([editor, fname])
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217 except subprocess.CalledProcessError as e:
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218 raise PipError(
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219 "Editor Subprocess exited with exit code {}"
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220 .format(e.returncode)
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221 )
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222
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223 def _get_n_args(self, args, example, n):
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224 """Helper to make sure the command got the right number of arguments
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225 """
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226 if len(args) != n:
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227 msg = (
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228 'Got unexpected number of arguments, expected {}. '
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229 '(example: "{} config {}")'
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230 ).format(n, get_prog(), example)
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231 raise PipError(msg)
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232
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233 if n == 1:
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234 return args[0]
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235 else:
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236 return args
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237
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238 def _save_configuration(self):
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239 # We successfully ran a modifying command. Need to save the
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240 # configuration.
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241 try:
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242 self.configuration.save()
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243 except Exception:
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244 logger.error(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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245 "Unable to save configuration. Please report this as a bug.",
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246 exc_info=1
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247 )
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248 raise PipError("Internal Error.")
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249
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250 def _determine_editor(self, options):
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251 if options.editor is not None:
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252 return options.editor
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253 elif "VISUAL" in os.environ:
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254 return os.environ["VISUAL"]
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255 elif "EDITOR" in os.environ:
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256 return os.environ["EDITOR"]
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257 else:
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258 raise PipError("Could not determine editor to use.")