add portable settings

openlp.pyw

@@ -155,11 +155,28 @@ def main():
                       help="Set logging to LEVEL level. Valid values are "
                            "\"debug\", \"info\", \"warning\".")
     parser.add_option("-p", "--portable", dest="portable",
-                      action="store_true",
-                      help="Specify if this should be run as a portable app, "
-                           "off a USB flash drive.")
+                      default="../openlp-data", metavar="APP_PATH",
+                      help="Specify relative Path where database should be located. E.g. ../openlp-data")
     parser.add_option("-s", "--style", dest="style",
                       help="Set the Qt4 style (passed directly to Qt4).")
+
+    # Parse command line options and deal with them.
+    (options, args) = parser.parse_args()
+    qt_args = []
+    if options.loglevel.lower() in ['d', 'debug']:
+        log.setLevel(logging.DEBUG)
+        #print 'Logging to:', filename
+    elif options.loglevel.lower() in ['w', 'warning']:
+        log.setLevel(logging.WARNING)
+    else:
+        log.setLevel(logging.INFO)
+    if options.style:
+        qt_args.extend(['-style', options.style])
+    if options.portable:
+        os.environ['PORTABLE'] = options.portable
+    # Throw the rest of the arguments at Qt, just in case.
+    qt_args.extend(args)
+
     # Set up logging
     log_path = AppLocation.get_directory(AppLocation.ConfigDir)
     if not os.path.exists(log_path):
@@ -170,20 +187,7 @@ def main():
         u'%(asctime)s %(name)-20s %(levelname)-8s %(message)s'))
     log.addHandler(logfile)
     logging.addLevelName(15, u'Timer')
-    # Parse command line options and deal with them.
-    (options, args) = parser.parse_args()
-    qt_args = []
-    if options.loglevel.lower() in ['d', 'debug']:
-        log.setLevel(logging.DEBUG)
-        print 'Logging to:', filename
-    elif options.loglevel.lower() in ['w', 'warning']:
-        log.setLevel(logging.WARNING)
-    else:
-        log.setLevel(logging.INFO)
-    if options.style:
-        qt_args.extend(['-style', options.style])
-    # Throw the rest of the arguments at Qt, just in case.
-    qt_args.extend(args)
+
     # Initialise the resources
     qInitResources()
     # Now create and actually run the application.

openlp/core/utils/__init__.py

@@ -45,7 +45,10 @@ class AppLocation(object):
         if dir_type == AppLocation.AppDir:
            return os.path.abspath(os.path.split(sys.argv[0])[0])
         elif dir_type == AppLocation.ConfigDir:
-            if sys.platform == u'win32':
+            if os.getenv(u'PORTABLE')  is not None:
+              path = os.path.split(os.path.abspath(sys.argv[0]))[0]
+              path = os.path.join(path, os.getenv(u'PORTABLE'))
+            elif sys.platform == u'win32':
                 path = os.path.join(os.getenv(u'APPDATA'), u'openlp')
             elif sys.platform == u'darwin':
                 path = os.path.join(os.getenv(u'HOME'), u'Library',
@@ -58,7 +61,10 @@ class AppLocation(object):
                     path = os.path.join(os.getenv(u'HOME'), u'.openlp')
             return path
         elif dir_type == AppLocation.DataDir:
-            if sys.platform == u'win32':
+            if os.getenv(u'PORTABLE')  is not None:
+                path = os.path.split(os.path.abspath(sys.argv[0]))[0]
+                path = os.path.join(path, os.getenv(u'PORTABLE'),  u'data')
+            elif sys.platform == u'win32':
                 path = os.path.join(os.getenv(u'APPDATA'), u'openlp', u'data')
             elif sys.platform == u'darwin':
                 path = os.path.join(os.getenv(u'HOME'), u'Library',