Added new config framework

Shared/Config.py

@@ -0,0 +1,67 @@
+from imp import load_source
+from os.path import isfile
+
+
+class ValidationFailedError(Exception):
+	def __init__(self, name):
+		super(InputError, self).__init__("validation failed for '%s'" % name)
+
+
+class OptionNotFoundError(IndexError):
+	def __init__(self, name):
+		super(InputError, self).__init__("'%s' does not exist" % name)	
+
+
+def make_value(value):
+	if type(value) is str:
+		value = '"%s"' % value
+	elif type(value) in (list, tuple, tuple):
+		value = str(value)
+	return value
+
+
+class Option:
+	def __init__(self, name, default_value, validator=None, comment=""):
+		self.name = name
+		self.default_value = default_value
+		self.validator = validator
+		self.comment = comment
+
+
+class Config:
+	def __init__(self, options=[]):
+		self.options = options
+
+
+	def read_from_file(self, file):
+		if isfile(file):
+			config = load_source("config", file)
+			return config
+		else:
+			raise FileNotFoundError()
+
+
+	def add(self, option):
+		self.options.append(option)
+
+
+	def remove(self, option):
+		if option in self.options:
+			del self.options[self.options.index(option)]
+		else:
+			raise OptionNotFoundError(option.name)
+
+
+	def write_to_file(self, file):
+		open(file, "w").write(self.get())
+
+
+	def get(self):
+		out = ""
+		for option in self.options:
+			out += "%s = %s %s\n" % (option.name, make_value(option.default_value), ("# %s" % option.comment) if option.comment else "")
+		return out	
+
+
+	def __repr__(self):
+		return self.get()