add initial argParser

src/fenrir/core/fenrirManager.py

@@ -13,21 +13,39 @@ if not os.path.dirname(os.path.realpath(__main__.__file__)) in sys.path:
 from core import i18n
 from core import settingsManager
 from core import debug
+import argparse
 
 class fenrirManager():
     def __init__(self):
+        self.initialized = False
+        cliArgs = self.handleArgs()
+        if not cliArgs:
+            return        
         try:
-            self.environment = settingsManager.settingsManager().initFenrirConfig()
+            self.environment = settingsManager.settingsManager().initFenrirConfig(cliArgs)
             if not self.environment:
                 raise RuntimeError('Cannot Initialize. Maybe the configfile is not available or not parseable')
         except RuntimeError:
             raise
+        self.initialized = True        
         self.environment['runtime']['outputManager'].presentText(_("Start Fenrir"), soundIcon='ScreenReaderOn', interrupt=True)          
         signal.signal(signal.SIGINT, self.captureSignal)
         signal.signal(signal.SIGTERM, self.captureSignal)
         self.wasCommand = False
-
+        
+    def handleArgs(self):
+        args = None
+        parser = argparse.ArgumentParser(description="Fenrir Help")
+        parser.add_argument('-s', '--setting', metavar='SETTING-FILE', default='/etc/fenrir/settings/settings.conf', help='Use a specified settingsfile')
+        parser.add_argument('-o', '--options', metavar='SECTION:SETTING=VALUE,..', default='', help='Overwrite options in given settings file')        
+        try:
+            args = parser.parse_args()
+        except Exception as e:
+            parser.print_help()
+        return args    
     def proceed(self):
+        if not self.initialized:
+            return
         while(self.environment['generalInformation']['running']):
             try:
                 self.handleProcess()

src/fenrir/core/settingsManager.py

@@ -205,14 +205,25 @@ class settingsManager():
             if not key in  self.env['input']['scriptKey']:
                 self.env['input']['scriptKey'].append(key)
        
-    def initFenrirConfig(self, environment = environment.environment, settingsRoot = '/etc/fenrir/', settingsFile='settings.conf', soundRoot = '/usr/share/sounds/fenrir/'):
+    def initFenrirConfig(self, cliArgs, environment = environment.environment):
+        settingsRoot = '/etc/fenrir/'
+        settingsFile = cliArgs.setting
+        soundRoot = '/usr/share/sounds/fenrir/'
         environment['runtime']['debug'] = debug.debug()
         environment['runtime']['debug'].initialize(environment)
+        # get fenrir settings root
         if not os.path.exists(settingsRoot):
             if os.path.exists(os.path.dirname(os.path.realpath(__main__.__file__)) +'/../../config/'):
                 settingsRoot = os.path.dirname(os.path.realpath(__main__.__file__)) +'/../../config/'
             else:
                 return None
+        # get settings file
+        if not os.path.exists(settingsFile):
+            if os.path.exists(settingsRoot + '/settings/' + settingsFile):
+                settingsFile = settingsRoot + '/settings/' + settingsFile
+            else:
+                return None            
+        # get sound themes root
         if not os.path.exists(soundRoot):
             if os.path.exists(os.path.dirname(os.path.realpath(__main__.__file__)) +'/../../config/sound/'):
                 soundRoot = os.path.dirname(os.path.realpath(__main__.__file__)) +'/../../config/sound/'
@@ -220,7 +231,7 @@ class settingsManager():
         environment['runtime']['settingsManager'] = self 
         environment['runtime']['settingsManager'].initialize(environment)
 
-        validConfig = environment['runtime']['settingsManager'].loadSettings(settingsRoot + '/settings/' + settingsFile)
+        validConfig = environment['runtime']['settingsManager'].loadSettings(settingsFile)
         if not validConfig:
             return None