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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# vim:ts=4:sw=4:softtabstop=4:smarttab:expandtab
import sys
import os, os.path
import shutil
class SimplePrefsError(Exception):
pass
class SimplePrefs(object):
def __init__(self, target, description):
self.prefs = {}
self.key2file={}
self.file2key={}
for keyfilemap in description:
[key, filename] = keyfilemap
self.key2file[key] = filename
self.file2key[filename] = key
self.target = target + 'Prefs'
if sys.platform.startswith('win'):
try:
import winreg
except ImportError:
import _winreg as winreg
regkey = winreg.OpenKey(winreg.HKEY_CURRENT_USER, "Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Shell Folders\\")
path = winreg.QueryValueEx(regkey, 'Local AppData')[0]
prefdir = path + os.sep + self.target
elif sys.platform.startswith('darwin'):
home = os.getenv('HOME')
prefdir = os.path.join(home,'Library','Preferences','org.' + self.target)
else:
# linux and various flavors of unix
home = os.getenv('HOME')
prefdir = os.path.join(home,'.' + self.target)
if not os.path.exists(prefdir):
os.makedirs(prefdir)
self.prefdir = prefdir
self.prefs['dir'] = self.prefdir
self._loadPreferences()
def _loadPreferences(self):
filenames = os.listdir(self.prefdir)
for filename in filenames:
if filename in self.file2key:
key = self.file2key[filename]
filepath = os.path.join(self.prefdir,filename)
if os.path.isfile(filepath):
try :
data = file(filepath,'rb').read()
self.prefs[key] = data
except Exception as e:
pass
def getPreferences(self):
return self.prefs
def setPreferences(self, newprefs={}):
if 'dir' not in newprefs:
raise SimplePrefsError('Error: Attempt to Set Preferences in unspecified directory')
if newprefs['dir'] != self.prefs['dir']:
raise SimplePrefsError('Error: Attempt to Set Preferences in unspecified directory')
for key in newprefs:
if key != 'dir':
if key in self.key2file:
filename = self.key2file[key]
filepath = os.path.join(self.prefdir,filename)
data = newprefs[key]
if data != None:
data = str(data)
if data == None or data == '':
if os.path.exists(filepath):
os.remove(filepath)
else:
try:
file(filepath,'wb').write(data)
except Exception as e:
pass
self.prefs = newprefs
return
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