mumo3/config.py
Stefan Hacker 0361021fbd Change shebang to python2 (see PEP394)
Would've prevented #7
2016-10-22 13:54:02 +02:00

126 lines
4.7 KiB
Python

#!/usr/bin/env python2
# -*- coding: utf-8
# Copyright (C) 2010 Stefan Hacker <dd0t@users.sourceforge.net>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# - Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
# - Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
# - Neither the name of the Mumble Developers nor the names of its
# contributors may be used to endorse or promote products derived from this
# software without specific prior written permission.
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# `AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import ConfigParser
import types
class Config(object):
"""
Small abstraction for config loading
"""
def __init__(self, filename = None, default = None):
if (filename and not default) or \
(not filename and not default): return
sections = set(default.iterkeys())
if filename:
cfg = ConfigParser.RawConfigParser()
cfg.optionxform = str
with open(filename) as f:
cfg.readfp(f)
sections.update(cfg.sections())
for section in sections:
if type(section) == types.FunctionType: continue
match = None
for default_section in default.iterkeys():
try:
if section == default_section or \
(type(default_section) == types.FunctionType and default_section(section)):
match = default_section
break
except ValueError:
continue
if match == None:
continue
optiondefaults = default[match]
if not optiondefaults:
# Output this whole section as a list of raw key/value tuples
if not filename:
self.__dict__[section] = []
else:
try:
self.__dict__[section] = cfg.items(section)
except ConfigParser.NoSectionError:
self.__dict__[section] = []
else:
self.__dict__[section] = Config()
for name, conv, vdefault in optiondefaults:
if not filename:
self.__dict__[section].__dict__[name] = vdefault
else:
try:
self.__dict__[section].__dict__[name] = conv(cfg.get(section, name))
except (ValueError, ConfigParser.NoSectionError, ConfigParser.NoOptionError):
self.__dict__[section].__dict__[name] = vdefault
def __getitem__(self, key):
return self.__dict__.__getitem__(key)
def __contains__(self, key):
return self.__dict__.__contains__(key)
def x2bool(s):
"""
Helper function to convert strings from the config to bool
"""
if isinstance(s, bool):
return s
elif isinstance(s, basestring):
return s.strip().lower() in ['1', 'true']
raise ValueError()
def commaSeperatedIntegers(s):
"""
Helper function to convert a string from the config
containing comma seperated integers into a list of integers
"""
return map(int, s.split(','))
def commaSeperatedStrings(s):
"""
Helper function to convert a string from the config
containing comma seperated strings into a list of strings
"""
return map(str.strip, s.split(','))
def commaSeperatedBool(s):
"""
Helper function to convert a string from the config
containing comma seperated strings into a list of booleans
"""
return map(x2bool, s.split(','))