Added basic config, still not implemented inside the application

requirements.txt

@@ -6,4 +6,5 @@ python-vlc
 google-api-python-client
 youtube-dl
 pyinstaller
-isodate
+isodate
+configobj

src/app-configuration.defaults

@@ -0,0 +1,2 @@
+[main]
+volume = integer(default=50)

src/config.py

@@ -0,0 +1,18 @@
+# -*- coding: cp1252 -*-
+import os
+import config_utils
+import paths
+import storage
+import logging
+
+log = logging.getLogger("config")
+
+MAINFILE = "settings.conf"
+MAINSPEC = "app-configuration.defaults"
+
+app = None
+def setup ():
+	global app
+	log.debug("Loading global app settings...")
+	app = config_utils.load_config(os.path.join(storage.data_directory, MAINFILE), os.path.join(paths.app_path(), MAINSPEC))
+ 

src/config_utils.py

@@ -0,0 +1,73 @@
+# -*- coding: utf-8 -*-
+from configobj import ConfigObj, ParseError
+from validate import Validator, ValidateError
+import os
+import string
+class ConfigLoadError(Exception): pass
+
+def load_config(config_path, configspec_path=None, *args, **kwargs):
+ if os.path.exists(config_path):
+  clean_config(config_path)
+ spec = ConfigObj(configspec_path, encoding='UTF8', list_values=False, _inspec=True)
+ try:
+  config = ConfigObj(infile=config_path, configspec=spec, create_empty=True, encoding='UTF8', *args, **kwargs)
+ except ParseError:
+  raise ConfigLoadError("Unable to load %r" % config_path)
+ validator = Validator()
+ validated = config.validate(validator, copy=True)
+ if validated == True:
+  config.write()
+  return config
+
+def is_blank(arg):
+ "Check if a line is blank."
+ for c in arg:
+  if c not in string.whitespace:
+   return False
+ return True
+def get_keys(path):
+ "Gets the keys of a configobj config file."
+ res=[]
+ fin=open(path)
+ for line in fin:
+  if not is_blank(line):
+   res.append(line[0:line.find('=')].strip())
+ fin.close()
+ return res
+
+def hist(keys):
+ "Generates a histogram of an iterable."
+ res={}
+ for k in keys:
+  res[k]=res.setdefault(k,0)+1
+ return res
+
+def find_problems(hist):
+ "Takes a histogram and returns a list of items occurring more than once."
+ res=[]
+ for k,v in hist.items():
+  if v>1:
+   res.append(k)
+ return res
+
+def clean_config(path):
+ "Cleans a config file. If duplicate values are found, delete all of them and just use the default."
+ orig=[]
+ cleaned=[]
+ fin=open(path)
+ for line in fin:
+  orig.append(line)
+ fin.close()
+ for p in find_problems(hist(get_keys(path))):
+  for o in orig:
+   o.strip()
+   if p not in o:
+    cleaned.append(o)
+ if len(cleaned) != 0:
+  cam=open(path,'w')
+  for c in cleaned:
+   cam.write(c)
+  cam.close()
+  return True
+ else:
+  return False

src/main.py

@@ -10,6 +10,8 @@ import storage
 import traceback
 import sys
 storage.setup()
+# Let's import config module here as it is dependent on storage being setup.
+import config
 logging.basicConfig(filename=os.path.join(storage.data_directory, "info.log"), level=logging.DEBUG, filemode="w")
 # Let's mute the google discovery_cache logger as we won't use it and we'll avoid some tracebacks.
 glog = logging.getLogger("googleapiclient.discovery_cache")
@@ -26,6 +28,7 @@ if sys.version[0] == "2":
 		fixes.setup()
 import i18n
 i18n.setup()
+config.setup()
 import application
 import widgetUtils
 import paths