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annotate pytouhou/utils/xdg.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
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567
b2269b9c6119 Add a configuration parser, and pass those options to argparse as defaults. Also include an xdg helper.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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1 # -*- encoding: utf-8
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2 """
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3 This module is based on a rox module (LGPL):
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4
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5 http://cvs.sourceforge.net/viewcvs.py/rox/ROX-Lib2/python/rox/basedir.py?rev=1.9&view=log
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6
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7 The freedesktop.org Base Directory specification provides a way for
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8 applications to locate shared data and configuration:
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9
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10 http://standards.freedesktop.org/basedir-spec/
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11
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12 (based on version 0.6)
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13
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14 This module can be used to load and save from and to these directories.
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15
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16 Typical usage:
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17
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18 from rox import basedir
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19
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20 for dir in basedir.load_config_paths('mydomain.org', 'MyProg', 'Options'):
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21 print "Load settings from", dir
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22
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23 dir = basedir.save_config_path('mydomain.org', 'MyProg')
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24 print >>file(os.path.join(dir, 'Options'), 'w'), "foo=2"
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25
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26 Note: see the rox.Options module for a higher-level API for managing options.
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27 """
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28
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29 import os
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30
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31 _home = os.path.expanduser('~')
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32 xdg_config_home = os.environ.get('XDG_CONFIG_HOME') or \
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33 os.path.join(_home, '.config')
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34
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35 xdg_config_dirs = [xdg_config_home] + \
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36 (os.environ.get('XDG_CONFIG_DIRS') or '/etc/xdg').split(':')
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37
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38 xdg_config_dirs = [x for x in xdg_config_dirs if x]
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41 def save_config_path(*resource):
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42 resource = os.path.join(*resource)
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43 assert not resource.startswith('/')
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44 path = os.path.join(xdg_config_home, resource)
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45 if not os.path.isdir(path):
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46 os.makedirs(path, 0o700)
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47 return path
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49
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50 def load_config_paths(*resource):
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51 resource = os.path.join(*resource)
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52 for config_dir in xdg_config_dirs:
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53 path = os.path.join(config_dir, resource)
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54 if os.path.exists(path):
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55 yield path