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annotate pytouhou/options.py @ 703:81232dac8136

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ecl: simplify parsing with more combinators.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Fri, 23 Aug 2019 17:37:22 +0200
parents 4fa0a8e7d941
children 7492d384d122
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1 # -*- encoding: utf-8 -*-
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2 ##
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3 ## Copyright (C) 2014 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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4 ##
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5 ## This program is free software; you can redistribute it and/or modify
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6 ## it under the terms of the GNU General Public License as published
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7 ## by the Free Software Foundation; version 3 only.
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8 ##
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9 ## This program is distributed in the hope that it will be useful,
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10 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 ## GNU General Public License for more details.
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13 ##
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14
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15 import os
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16 from configparser import RawConfigParser, NoOptionError
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17
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18 from pytouhou.utils.xdg import load_config_paths, save_config_path
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19
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20
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d1f0bb0b7a17 Don’t inherit explicitely from object, we are not on Python 2.7 anymore. :)
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21 class Options:
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22 def __init__(self, name, defaults):
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23 load_paths = list(reversed([os.path.join(directory, '%s.cfg' % name)
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24 for directory
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25 in load_config_paths(name)]))
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26 self.save_path = os.path.join(save_config_path(name), '%s.cfg' % name)
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27
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28 self.config = RawConfigParser(defaults)
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29 self.paths = self.config.read(load_paths)
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30 self.section = name if self.config.has_section(name) else 'DEFAULT'
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31
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32 def get(self, option):
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33 try:
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34 return self.config.get(self.section, option)
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35 except NoOptionError:
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36 return None
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37
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38 def set(self, option, value):
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39 if value is not None:
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40 self.config.set(self.section, option, value)
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41 else:
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42 self.config.remove_option(self.section, option)
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43
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44 defaults = self.config._defaults
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45 self.config._defaults = None
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46 with open(self.save_path, 'w') as save_file:
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47 self.config.write(save_file)
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48 self.config._defaults = defaults
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49
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50
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51 def patch_argument_parser():
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52 from argparse import ArgumentParser, _ActionsContainer
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53
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54 original_method = _ActionsContainer.add_argument
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55
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56 def add_argument(self, *args, **kwargs):
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57 if 'default' not in kwargs:
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58 dest = kwargs.get('dest')
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59 if dest is None:
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60 for dest in args:
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61 dest = dest.lstrip('-')
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62 value = self.default.get(dest)
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63 if value is not None:
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64 break
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65 else:
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66 dest = dest.replace('_', '-')
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67 value = self.default.get(dest)
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68 if value is not None:
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69 argument_type = kwargs.get('type')
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70 if argument_type is not None:
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71 value = argument_type(value)
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72 action = kwargs.get('action')
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73 if action == 'store_true':
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74 value = value.lower() == 'true'
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75 elif action == 'store_false':
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76 value = value.lower() != 'true'
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77 if kwargs.get('nargs') == '*' and isinstance(value, str):
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78 value = value.split()
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79 kwargs['default'] = value
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80 elif dest == 'double-buffer':
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81 kwargs['default'] = None
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82 return original_method(self, *args, **kwargs)
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83 _ActionsContainer.add_argument = add_argument
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84
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85 class Parser(ArgumentParser):
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86 def __init__(self, *args, **kwargs):
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87 self.default = kwargs.pop('default')
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88 ArgumentParser.__init__(self, *args, **kwargs)
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89
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90 def add_argument_group(self, *args, **kwargs):
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91 group = ArgumentParser.add_argument_group(self, *args, **kwargs)
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92 group.default = self.default
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93 group.add_argument_group = self.add_argument_group
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94 group.add_mutually_exclusive_group = self.add_mutually_exclusive_group
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95 return group
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96
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97 def add_mutually_exclusive_group(self, *args, **kwargs):
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98 group = ArgumentParser.add_mutually_exclusive_group(self, *args, **kwargs)
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99 group.default = self.default
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100 group.add_argument_group = self.add_argument_group
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101 group.add_mutually_exclusive_group = self.add_mutually_exclusive_group
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102 return group
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103
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104 return Parser
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105
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106
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107 ArgumentParser = patch_argument_parser()
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108
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109
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110 def parse_config(section, defaults):
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111 return Options(section, defaults)
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112
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113
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114 def parse_arguments(defaults):
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115 parser = ArgumentParser(description='Libre reimplementation of the Touhou 6 engine.', default=defaults)
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116
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117 parser.add_argument('data', metavar='DAT', nargs='*', help='Game’s data files')
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118 parser.add_argument('-p', '--path', metavar='DIRECTORY', help='Game directory path.')
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119 parser.add_argument('--debug', action='store_true', help='Set unlimited continues, and perhaps other debug features.')
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120 parser.add_argument('--verbosity', metavar='VERBOSITY', choices=['DEBUG', 'INFO', 'WARNING', 'ERROR', 'CRITICAL'], help='Select the wanted logging level.')
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121 parser.add_argument('--no-menu', action='store_true', help='Disable the menu.')
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122
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123 game_group = parser.add_argument_group('Game options')
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124 game_group.add_argument('-s', '--stage', metavar='STAGE', type=int, help='Stage, 1 to 7 (Extra), nothing means story mode.')
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125 game_group.add_argument('-r', '--rank', metavar='RANK', type=int, help='Rank, from 0 (Easy, default) to 3 (Lunatic).')
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126 game_group.add_argument('-c', '--character', metavar='CHARACTER', type=int, help='Select the character to use, from 0 (ReimuA, default) to 3 (MarisaB).')
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127 game_group.add_argument('-b', '--boss-rush', action='store_true', help='Fight only bosses.')
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128 game_group.add_argument('--game', metavar='GAME', help='Select the game engine to use.')
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129 game_group.add_argument('--interface', metavar='INTERFACE', help='Select the interface to use.')
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130 game_group.add_argument('--hints', metavar='HINTS', help='Hints file, to display text while playing.')
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131
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132 replay_group = parser.add_argument_group('Replay options')
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133 replay_group.add_argument('--replay', metavar='REPLAY', help='Select a file to replay.')
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134 replay_group.add_argument('--save-replay', metavar='REPLAY', help='Save the upcoming game into a replay file.')
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135 replay_group.add_argument('--skip-replay', action='store_true', help='Skip the replay and start to play when it’s finished.')
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136
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137 netplay_group = parser.add_argument_group('Netplay options')
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138 netplay_group.add_argument('--port', metavar='PORT', type=int, help='Local port to use.')
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139 netplay_group.add_argument('--remote', metavar='REMOTE', help='Remote address.')
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140 netplay_group.add_argument('--friendly-fire', action='store_true', help='Allow friendly-fire during netplay.')
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141
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142 graphics_group = parser.add_argument_group('Graphics options')
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143 graphics_group.add_argument('--frontend', metavar='FRONTEND', choices=['glfw', 'sdl'], help='Which windowing library to use (glfw or sdl).')
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144 graphics_group.add_argument('--backend', metavar='BACKEND', choices=['opengl', 'sdl'], nargs='*', help='Which backend to use (opengl or sdl).')
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145 graphics_group.add_argument('--fps-limit', metavar='FPS', type=int, help='Set fps limit. A value of 0 disables fps limiting, while a negative value limits to 60 fps if and only if vsync doesn’t work.')
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146 graphics_group.add_argument('--frameskip', metavar='FRAMESKIP', type=int, help='Set the frameskip, as 1/FRAMESKIP, or disabled if 0.')
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147 graphics_group.add_argument('--no-background', action='store_false', help='Disable background display (huge performance boost on slow systems).')
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148 graphics_group.add_argument('--no-particles', action='store_false', help='Disable particles handling (huge performance boost on slow systems).')
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149 graphics_group.add_argument('--no-sound', action='store_false', help='Disable music and sound effects.')
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150
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151 opengl_group = parser.add_argument_group('OpenGL backend options')
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152 opengl_group.add_argument('--gl-flavor', choices=['core', 'es', 'compatibility', 'legacy'], help='OpenGL profile to use.')
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153 opengl_group.add_argument('--gl-version', type=float, help='OpenGL version to use.')
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154
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155 double_buffer = opengl_group.add_mutually_exclusive_group()
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156 double_buffer.add_argument('--double-buffer', dest='double_buffer', action='store_true', help='Enable double buffering.')
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157 double_buffer.add_argument('--single-buffer', dest='double_buffer', action='store_false', help='Disable double buffering.')
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158
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159 return parser.parse_args()