Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/pip/_internal/cli/parser.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 """Base option parser setup""" |
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2 |
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3 # The following comment should be removed at some point in the future. |
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4 # mypy: disallow-untyped-defs=False |
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5 |
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6 import logging |
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7 import optparse |
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8 import shutil |
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9 import sys |
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10 import textwrap |
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11 |
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12 from pip._vendor.contextlib2 import suppress |
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13 |
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14 from pip._internal.cli.status_codes import UNKNOWN_ERROR |
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15 from pip._internal.configuration import Configuration, ConfigurationError |
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16 from pip._internal.utils.misc import redact_auth_from_url, strtobool |
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17 |
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18 logger = logging.getLogger(__name__) |
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19 |
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20 |
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21 class PrettyHelpFormatter(optparse.IndentedHelpFormatter): |
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22 """A prettier/less verbose help formatter for optparse.""" |
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23 |
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24 def __init__(self, *args, **kwargs): |
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25 # help position must be aligned with __init__.parseopts.description |
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26 kwargs['max_help_position'] = 30 |
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27 kwargs['indent_increment'] = 1 |
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28 kwargs['width'] = shutil.get_terminal_size()[0] - 2 |
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29 super().__init__(*args, **kwargs) |
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30 |
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31 def format_option_strings(self, option): |
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32 return self._format_option_strings(option) |
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33 |
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34 def _format_option_strings(self, option, mvarfmt=' <{}>', optsep=', '): |
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35 """ |
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36 Return a comma-separated list of option strings and metavars. |
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37 |
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38 :param option: tuple of (short opt, long opt), e.g: ('-f', '--format') |
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39 :param mvarfmt: metavar format string |
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40 :param optsep: separator |
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41 """ |
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42 opts = [] |
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43 |
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44 if option._short_opts: |
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45 opts.append(option._short_opts[0]) |
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46 if option._long_opts: |
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47 opts.append(option._long_opts[0]) |
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48 if len(opts) > 1: |
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49 opts.insert(1, optsep) |
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50 |
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51 if option.takes_value(): |
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52 metavar = option.metavar or option.dest.lower() |
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53 opts.append(mvarfmt.format(metavar.lower())) |
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54 |
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55 return ''.join(opts) |
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56 |
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57 def format_heading(self, heading): |
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58 if heading == 'Options': |
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59 return '' |
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60 return heading + ':\n' |
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61 |
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62 def format_usage(self, usage): |
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63 """ |
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64 Ensure there is only one newline between usage and the first heading |
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65 if there is no description. |
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66 """ |
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67 msg = '\nUsage: {}\n'.format( |
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68 self.indent_lines(textwrap.dedent(usage), " ")) |
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69 return msg |
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70 |
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71 def format_description(self, description): |
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72 # leave full control over description to us |
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73 if description: |
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74 if hasattr(self.parser, 'main'): |
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75 label = 'Commands' |
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76 else: |
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77 label = 'Description' |
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78 # some doc strings have initial newlines, some don't |
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79 description = description.lstrip('\n') |
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80 # some doc strings have final newlines and spaces, some don't |
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81 description = description.rstrip() |
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82 # dedent, then reindent |
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83 description = self.indent_lines(textwrap.dedent(description), " ") |
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84 description = f'{label}:\n{description}\n' |
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85 return description |
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86 else: |
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87 return '' |
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88 |
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89 def format_epilog(self, epilog): |
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90 # leave full control over epilog to us |
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91 if epilog: |
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92 return epilog |
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93 else: |
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94 return '' |
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95 |
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96 def indent_lines(self, text, indent): |
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97 new_lines = [indent + line for line in text.split('\n')] |
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98 return "\n".join(new_lines) |
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99 |
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100 |
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101 class UpdatingDefaultsHelpFormatter(PrettyHelpFormatter): |
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102 """Custom help formatter for use in ConfigOptionParser. |
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103 |
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104 This is updates the defaults before expanding them, allowing |
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105 them to show up correctly in the help listing. |
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106 |
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107 Also redact auth from url type options |
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108 """ |
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109 |
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110 def expand_default(self, option): |
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111 default_values = None |
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112 if self.parser is not None: |
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113 self.parser._update_defaults(self.parser.defaults) |
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114 default_values = self.parser.defaults.get(option.dest) |
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115 help_text = super().expand_default(option) |
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116 |
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117 if default_values and option.metavar == 'URL': |
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118 if isinstance(default_values, str): |
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119 default_values = [default_values] |
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120 |
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121 # If its not a list, we should abort and just return the help text |
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122 if not isinstance(default_values, list): |
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123 default_values = [] |
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124 |
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125 for val in default_values: |
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126 help_text = help_text.replace( |
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127 val, redact_auth_from_url(val)) |
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128 |
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129 return help_text |
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130 |
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131 |
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132 class CustomOptionParser(optparse.OptionParser): |
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133 |
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134 def insert_option_group(self, idx, *args, **kwargs): |
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135 """Insert an OptionGroup at a given position.""" |
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136 group = self.add_option_group(*args, **kwargs) |
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137 |
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138 self.option_groups.pop() |
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139 self.option_groups.insert(idx, group) |
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140 |
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141 return group |
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142 |
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143 @property |
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144 def option_list_all(self): |
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145 """Get a list of all options, including those in option groups.""" |
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146 res = self.option_list[:] |
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147 for i in self.option_groups: |
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148 res.extend(i.option_list) |
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149 |
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150 return res |
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151 |
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152 |
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153 class ConfigOptionParser(CustomOptionParser): |
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154 """Custom option parser which updates its defaults by checking the |
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155 configuration files and environmental variables""" |
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156 |
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157 def __init__(self, *args, **kwargs): |
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158 self.name = kwargs.pop('name') |
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159 |
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160 isolated = kwargs.pop("isolated", False) |
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161 self.config = Configuration(isolated) |
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162 |
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163 assert self.name |
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164 super().__init__(*args, **kwargs) |
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165 |
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166 def check_default(self, option, key, val): |
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167 try: |
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168 return option.check_value(key, val) |
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169 except optparse.OptionValueError as exc: |
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170 print(f"An error occurred during configuration: {exc}") |
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171 sys.exit(3) |
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172 |
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173 def _get_ordered_configuration_items(self): |
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174 # Configuration gives keys in an unordered manner. Order them. |
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175 override_order = ["global", self.name, ":env:"] |
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176 |
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177 # Pool the options into different groups |
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178 section_items = {name: [] for name in override_order} |
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179 for section_key, val in self.config.items(): |
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180 # ignore empty values |
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181 if not val: |
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182 logger.debug( |
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183 "Ignoring configuration key '%s' as it's value is empty.", |
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184 section_key |
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185 ) |
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186 continue |
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187 |
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188 section, key = section_key.split(".", 1) |
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189 if section in override_order: |
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190 section_items[section].append((key, val)) |
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191 |
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192 # Yield each group in their override order |
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193 for section in override_order: |
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194 for key, val in section_items[section]: |
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195 yield key, val |
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196 |
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197 def _update_defaults(self, defaults): |
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198 """Updates the given defaults with values from the config files and |
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199 the environ. Does a little special handling for certain types of |
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200 options (lists).""" |
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201 |
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202 # Accumulate complex default state. |
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203 self.values = optparse.Values(self.defaults) |
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204 late_eval = set() |
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205 # Then set the options with those values |
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206 for key, val in self._get_ordered_configuration_items(): |
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207 # '--' because configuration supports only long names |
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208 option = self.get_option('--' + key) |
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209 |
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210 # Ignore options not present in this parser. E.g. non-globals put |
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211 # in [global] by users that want them to apply to all applicable |
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212 # commands. |
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213 if option is None: |
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214 continue |
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215 |
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216 if option.action in ('store_true', 'store_false'): |
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217 try: |
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218 val = strtobool(val) |
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219 except ValueError: |
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220 self.error( |
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221 '{} is not a valid value for {} option, ' # noqa |
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222 'please specify a boolean value like yes/no, ' |
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223 'true/false or 1/0 instead.'.format(val, key) |
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224 ) |
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225 elif option.action == 'count': |
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226 with suppress(ValueError): |
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227 val = strtobool(val) |
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228 with suppress(ValueError): |
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229 val = int(val) |
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230 if not isinstance(val, int) or val < 0: |
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231 self.error( |
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232 '{} is not a valid value for {} option, ' # noqa |
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233 'please instead specify either a non-negative integer ' |
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234 'or a boolean value like yes/no or false/true ' |
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235 'which is equivalent to 1/0.'.format(val, key) |
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236 ) |
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237 elif option.action == 'append': |
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238 val = val.split() |
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239 val = [self.check_default(option, key, v) for v in val] |
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240 elif option.action == 'callback': |
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241 late_eval.add(option.dest) |
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242 opt_str = option.get_opt_string() |
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243 val = option.convert_value(opt_str, val) |
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244 # From take_action |
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245 args = option.callback_args or () |
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246 kwargs = option.callback_kwargs or {} |
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247 option.callback(option, opt_str, val, self, *args, **kwargs) |
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248 else: |
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249 val = self.check_default(option, key, val) |
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250 |
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251 defaults[option.dest] = val |
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252 |
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253 for key in late_eval: |
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254 defaults[key] = getattr(self.values, key) |
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255 self.values = None |
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256 return defaults |
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257 |
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258 def get_default_values(self): |
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259 """Overriding to make updating the defaults after instantiation of |
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260 the option parser possible, _update_defaults() does the dirty work.""" |
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261 if not self.process_default_values: |
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262 # Old, pre-Optik 1.5 behaviour. |
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263 return optparse.Values(self.defaults) |
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264 |
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265 # Load the configuration, or error out in case of an error |
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266 try: |
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267 self.config.load() |
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268 except ConfigurationError as err: |
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269 self.exit(UNKNOWN_ERROR, str(err)) |
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270 |
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271 defaults = self._update_defaults(self.defaults.copy()) # ours |
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272 for option in self._get_all_options(): |
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273 default = defaults.get(option.dest) |
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274 if isinstance(default, str): |
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275 opt_str = option.get_opt_string() |
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276 defaults[option.dest] = option.check_value(opt_str, default) |
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277 return optparse.Values(defaults) |
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278 |
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279 def error(self, msg): |
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280 self.print_usage(sys.stderr) |
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281 self.exit(UNKNOWN_ERROR, f"{msg}\n") |