noDRM_DeDRM_tools/DeDRM_plugin/simpleprefs.py
Apprentice Harper afa4ac5716 Starting on Version 7.0 using the work done by others. Completely untested. I will be testing things, but I thought I'd get this base version up for others to give pull requests.
THIS IS ON THE MASTER BRANCH. The Master branch will be Python 3.0 from now on. While Python 2.7 support will not be deliberately broken, all efforts should now focus on Python 3.0 compatibility.

I can see a lot of work has been done. There's more to do. I've bumped the version number of everything I came across to the next major number for Python 3.0 compatibility indication.

Thanks everyone. I hope to update here at least once a week until we have a stable 7.0 release for calibre 5.0
2020-09-26 21:22:47 +01:00

77 lines
2.9 KiB
Python

#!/usr/bin/env python
# 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'):
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