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annotate pytouhou/options.py @ 567:b2269b9c6119

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Add a configuration parser, and pass those options to argparse as defaults. Also include an xdg helper.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Tue, 01 Jul 2014 23:17:40 +0200
parents 5f7f859a72f9
children e7a4731a278b
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565
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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
567
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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
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19
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20
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21 class Options(object):
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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
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27 self.config = RawConfigParser(defaults)
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28 self.paths = self.config.read(load_paths)
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29 self.section = name if self.config.has_section(name) else 'DEFAULT'
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30
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31 def get(self, option):
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32 try:
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33 return self.config.get(self.section, option)
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34 except NoOptionError:
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35 return None
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36
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37
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38 def patch_argument_parser():
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39 from argparse import ArgumentParser, _ActionsContainer
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40
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41 original_method = _ActionsContainer.add_argument
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42
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43 def add_argument(self, *args, **kwargs):
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44 if 'default' not in kwargs:
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45 dest = kwargs.get('dest')
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46 if dest is None:
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47 for dest in args:
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48 dest = dest.lstrip('-')
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49 value = self.default.get(dest)
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50 if value is not None:
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51 break
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52 else:
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53 dest = dest.replace('_', '-')
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54 value = self.default.get(dest)
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55 if value is not None:
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56 argument_type = kwargs.get('type')
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57 if argument_type is not None:
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58 value = argument_type(value)
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59 action = kwargs.get('action')
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60 if action == 'store_true':
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61 value = value.lower() == 'true'
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62 elif action == 'store_false':
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63 value = value.lower() != 'true'
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64 if kwargs.get('nargs') == '*' and isinstance(value, str):
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65 value = value.split()
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66 kwargs['default'] = value
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67 elif dest == 'double-buffer':
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68 kwargs['default'] = None
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69 return original_method(self, *args, **kwargs)
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70 _ActionsContainer.add_argument = add_argument
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71
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72 class Parser(ArgumentParser):
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73 def __init__(self, *args, **kwargs):
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74 self.default = kwargs.pop('default')
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75 ArgumentParser.__init__(self, *args, **kwargs)
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76
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77 def add_argument_group(self, *args, **kwargs):
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78 group = ArgumentParser.add_argument_group(self, *args, **kwargs)
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79 group.default = self.default
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80 group.add_argument_group = self.add_argument_group
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81 group.add_mutually_exclusive_group = self.add_mutually_exclusive_group
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82 return group
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83
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84 def add_mutually_exclusive_group(self, *args, **kwargs):
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85 group = ArgumentParser.add_mutually_exclusive_group(self, *args, **kwargs)
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86 group.default = self.default
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87 group.add_argument_group = self.add_argument_group
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88 group.add_mutually_exclusive_group = self.add_mutually_exclusive_group
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89 return group
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90
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91 return Parser
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92
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93
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94 ArgumentParser = patch_argument_parser()
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95
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96
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97 def parse_config(section, defaults):
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98 return Options(section, defaults)
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99
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100
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101 def parse_arguments(defaults):
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102 parser = ArgumentParser(description='Libre reimplementation of the Touhou 6 engine.', default=defaults)
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103
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104 parser.add_argument('data', metavar='DAT', nargs='*', help='Game’s data files')
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105 parser.add_argument('-p', '--path', metavar='DIRECTORY', help='Game directory path.')
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106 parser.add_argument('--debug', action='store_true', help='Set unlimited continues, and perhaps other debug features.')
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107 parser.add_argument('--verbosity', metavar='VERBOSITY', choices=['DEBUG', 'INFO', 'WARNING', 'ERROR', 'CRITICAL'], help='Select the wanted logging level.')
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108
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109 game_group = parser.add_argument_group('Game options')
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110 game_group.add_argument('-s', '--stage', metavar='STAGE', type=int, help='Stage, 1 to 7 (Extra), nothing means story mode.')
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111 game_group.add_argument('-r', '--rank', metavar='RANK', type=int, help='Rank, from 0 (Easy, default) to 3 (Lunatic).')
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112 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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113 game_group.add_argument('-b', '--boss-rush', action='store_true', help='Fight only bosses.')
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114 game_group.add_argument('--game', metavar='GAME', choices=['EoSD'], help='Select the game engine to use.')
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115 game_group.add_argument('--interface', metavar='INTERFACE', choices=['EoSD', 'Sample'], help='Select the interface to use.')
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116 game_group.add_argument('--hints', metavar='HINTS', help='Hints file, to display text while playing.')
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117
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118 replay_group = parser.add_argument_group('Replay options')
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119 replay_group.add_argument('--replay', metavar='REPLAY', help='Select a file to replay.')
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120 replay_group.add_argument('--save-replay', metavar='REPLAY', help='Save the upcoming game into a replay file.')
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121 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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122
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123 netplay_group = parser.add_argument_group('Netplay options')
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124 netplay_group.add_argument('--port', metavar='PORT', type=int, help='Local port to use.')
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125 netplay_group.add_argument('--remote', metavar='REMOTE', help='Remote address.')
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126 netplay_group.add_argument('--friendly-fire', action='store_true', help='Allow friendly-fire during netplay.')
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127
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128 graphics_group = parser.add_argument_group('Graphics options')
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129 graphics_group.add_argument('--backend', metavar='BACKEND', choices=['opengl', 'sdl'], nargs='*', help='Which backend to use (opengl or sdl).')
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130 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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131 graphics_group.add_argument('--no-background', action='store_false', help='Disable background display (huge performance boost on slow systems).')
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132 graphics_group.add_argument('--no-particles', action='store_false', help='Disable particles handling (huge performance boost on slow systems).')
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133 graphics_group.add_argument('--no-sound', action='store_false', help='Disable music and sound effects.')
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134
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135 opengl_group = parser.add_argument_group('OpenGL backend options')
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136 opengl_group.add_argument('--gl-flavor', choices=['core', 'es', 'compatibility', 'legacy'], help='OpenGL profile to use.')
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137 opengl_group.add_argument('--gl-version', type=float, help='OpenGL version to use.')
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138
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139 double_buffer = opengl_group.add_mutually_exclusive_group()
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140 double_buffer.add_argument('--double-buffer', dest='double_buffer', action='store_true', help='Enable double buffering.')
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141 double_buffer.add_argument('--single-buffer', dest='double_buffer', action='store_false', help='Disable double buffering.')
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142
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143 return parser.parse_args()