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#!/usr/bin/env python
#
# Copyright (c) 2011 Collabora Ltd. <http://www.collabora.co.uk/>
#
import gobject
class ConfigFile(gobject.GObject):
"""Load/save a simple (key = value) config file"""
__gsignals__ = {
'configuration-loaded': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
()),
'configuration-saved': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
()),
}
def __init__(self, config_file_path, valid_keys = {}):
gobject.GObject.__init__(self)
self._config_file_path = config_file_path
self._valid_keys = valid_keys
self._config_hash = {}
self._is_loaded = False
def set_valid_keys(self, valid_keys):
self._valid_keys = valid_keys
def is_loaded(self):
return self._is_loaded
def get(self, key, empty_if_not_loaded = False):
if not self._valid_keys.has_key(key):
raise RuntimeError("Unknown config value %s" % key)
if self._config_hash.has_key(key):
value = self._config_hash[key]
else:
if self._valid_keys[key]["type"] == "text":
value = ""
elif self._valid_keys[key]["type"] == "boolean":
value = False
elif self._valid_keys[key]["type"] == "integer":
value = 0
return value
def set(self, key, value):
if not self._valid_keys.has_key(key):
raise RuntimeError("Unknown config value %s" % key)
self._config_hash[key] = value
def load(self):
try:
config_file = open(self._config_file_path, 'r')
lines = config_file.readlines()
config_file.close()
for line in lines:
line = line.strip()
k,v = line.split('=')
k = k.strip(' ')
v = v.strip(' ')
if not self._valid_keys.has_key(k):
raise RuntimeError("Unknown config value %s" % k)
value_type = self._valid_keys[k]["type"]
if value_type == "text":
value = v
elif value_type == "boolean":
value = eval(v)
elif value_type == "integer":
value = int(v)
self._config_hash[k] = value
self._is_loaded = True
self.emit('configuration-loaded')
except Exception,e:
print e
return self._is_loaded
def save(self):
config_file = open(self._config_file_path, 'w')
for k in self._config_hash.keys():
v = self._config_hash[k]
l = "%s = %s\n" % (k, v)
config_file.write(l)
config_file.close()
self.emit('configuration-saved')
def dump_keys(self):
print "\n\nDumping keys\n\n"
for k in self._config_hash.keys():
v = self._config_hash[k]
l = "%s = %s\n" % (k, v)
print l
def test_save_load(test_config_file):
keys = {}
keys["nick"] = { "type" : "text" }
keys["account_id"] = { "type" : "text" }
keys["server"] = { "type" : "text" }
keys["port"] = { "type" : "text" }
keys["password"] = { "type" : "text" }
keys["register"] = { "type" : "text" }
c = ConfigFile(test_config_file)
c.set_valid_keys(keys)
c.set("nick", "rgs")
c.set("account_id", "rgs@andromeda")
c.set("server", "andromeda")
c.set("port", 5223)
c.set("password", "97c74fa0dc3b39b8c87f119fa53cced2b7040786")
c.set("register", True)
c.save()
c = ConfigFile(test_config_file)
c.set_valid_keys(keys)
c.load()
c.dump_keys()
def _configuration_saved_cb(config_file_obj):
print "_configuration_saved_cb called"
config_file_obj.dump_keys()
def _configuration_loaded_cb(config_file_obj):
print "_configuration_loaded_cb called"
config_file_obj.dump_keys()
def test_signals(test_config_file):
keys = {}
keys["nick"] = { "type" : "text" }
keys["account_id"] = { "type" : "text" }
keys["server"] = { "type" : "text" }
keys["port"] = { "type" : "text" }
keys["password"] = { "type" : "text" }
keys["register"] = { "type" : "text" }
c = ConfigFile(test_config_file)
c.connect('configuration-saved', _configuration_saved_cb)
c.set_valid_keys(keys)
c.set("nick", "rgs")
c.set("account_id", "rgs@andromeda")
c.set("server", "andromeda")
c.set("port", 5223)
c.set("password", "97c74fa0dc3b39b8c87f119fa53cced2b7040786")
c.set("register", True)
c.save()
c = ConfigFile(test_config_file)
c.connect('configuration-loaded', _configuration_loaded_cb)
c.set_valid_keys(keys)
c.load()
if __name__ == "__main__":
test_save_load("/tmp/configfile.0001")
test_signals("/tmp/configfile.0002")
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