Radicale file system path in configuration

tracim/development.ini.base

 # radicale.server.host = 0.0.0.0
 # radicale.server.port = 5232
 # radicale.server.ssl = false
+# radicale.server.filesystem.folder = ~/.config/radicale/collections
 ## If '', current host will be used
 # radicale.client.host = ''
 # radicale.client.port = 5232

tracim/tracim/config/app_cfg.py

         self.RADICALE_SERVER_PORT = tg.config.get('radicale.server.port', 5232)
         # Note: Other parameters needed to work in SSL (cert file, etc)
         self.RADICALE_SERVER_SSL = asbool(tg.config.get('radicale.server.ssl', False))
+        self.RADICALE_SERVER_FILE_SYSTEM_FOLDER = tg.config.get(
+            'radicale.server.filesystem.folder',
+            '~/.config/radicale/collections'
+        )
 
         # If None, current host will be used
         self.RADICALE_CLIENT_HOST = tg.config.get('radicale.client.host', None)

tracim/tracim/lib/daemons.py

         server.serve_forever()
 
     def _prepare_config(self):
+        from tracim.config.app_cfg import CFG
+        cfg = CFG.get_instance()
+
         tracim_auth = 'tracim.lib.radicale.auth'
         tracim_rights = 'tracim.lib.radicale.rights'
         tracim_storage = 'tracim.lib.radicale.storage'
+        fs_path = cfg.RADICALE_SERVER_FILE_SYSTEM_FOLDER
 
         radicale_config.set('auth', 'type', 'custom')
         radicale_config.set('auth', 'custom_handler', tracim_auth)
 
         radicale_config.set('storage', 'type', 'custom')
         radicale_config.set('storage', 'custom_handler', tracim_storage)
+        radicale_config.set('storage', 'filesystem_folder', fs_path)
 
     def _get_server(self):
         from tracim.config.app_cfg import CFG