source: src/mlx/config.py@ 40:aaf5cd877e21

Last change on this file since 40:aaf5cd877e21 was 40:aaf5cd877e21, checked in by István Váradi <ivaradi@…>, 13 years ago

Added support to load and save the configuration

File size: 3.0 KB
Line 
1# Configuration and related stuff
2
3#-------------------------------------------------------------------------------
4
5import os
6import ConfigParser
7
8#-------------------------------------------------------------------------------
9
10configPath = os.path.join(os.path.expanduser("~"),
11 "mlx.config" if os.name=="nt" else ".mlxrc")
12
13#-------------------------------------------------------------------------------
14
15class Config(object):
16 """Our configuration."""
17 DEFAULT_UPDATE_URL = "http://mlx.varadiistvan.hu/update"
18
19 def __init__(self):
20 """Construct the configuration with default values."""
21
22 self._autoUpdate = True
23 self._updateURL = Config.DEFAULT_UPDATE_URL
24
25 self._modified = False
26
27 @property
28 def autoUpdate(self):
29 """Get if an automatic update is needed."""
30 return self._autoUpdate
31
32 @autoUpdate.setter
33 def autoUpdate(self, autoUpdate):
34 """Set if an automatic update is needed."""
35 if autoUpdate!=self._autoUpdate:
36 self._autoUpdate = autoUpdate
37 self._modified = True
38
39 @property
40 def updateURL(self):
41 """Get the update URL."""
42 return self._updateURL
43
44 @updateURL.setter
45 def updateURL(self, updateURL):
46 """Set the update URL."""
47 if updateURL!=self._updateURL:
48 self._updateURL = updateURL
49 self._modified = True
50
51 def load(self):
52 """Load the configuration from its default location."""
53 config = ConfigParser.RawConfigParser()
54 config.read(configPath)
55
56 self._autoUpdate = self._getBoolean(config, "update", "auto", True)
57 self._updateURL = self._get(config, "update", "url",
58 Config.DEFAULT_UPDATE_URL)
59 self._modified = False
60
61 def save(self):
62 """Save the configuration file if it has been modified."""
63 if not self._modified:
64 return
65
66 config = ConfigParser.RawConfigParser()
67
68 config.add_section("update")
69 config.set("update", "auto", self._autoUpdate)
70 config.set("update", "url", self._updateURL)
71
72 try:
73 with open(configPath, "wt") as f:
74 config.write(f)
75 self._modified = False
76 except Exception, e:
77 print >> sys.stderr("Failed to update config: " + str(e))
78
79 def _getBoolean(self, config, section, option, default):
80 """Get the given option as a boolean, if found in the given config,
81 otherwise the default."""
82 return config.getboolean(section, option) \
83 if config.has_option(section, option) \
84 else default
85
86 def _get(self, config, section, option, default):
87 """Get the given option as a string, if found in the given config,
88 otherwise the default."""
89 return config.get(section, option) \
90 if config.has_option(section, option) \
91 else default
92
93#-------------------------------------------------------------------------------
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