allow from workflows to overload the config parser method

bin/jflow_cli.py

@@ -38,7 +38,6 @@ class ConfigArgumentParser (argparse.ArgumentParser):
                 continue
             yield arg
 
-
 def display_workflow_status(workflow, detailed=False):
     if workflow.start_time: start_time = time.asctime(time.localtime(workflow.start_time))
     else: start_time = "-"
@@ -111,6 +110,7 @@ if __name__ == '__main__':
     wf_instances = wfmanager.get_available_workflows()
     wf_classes = []
     for instance in wf_instances:
+        parser.convert_arg_line_to_args = instance.__class__.config_parser
         wf_classes.append(instance.__class__.__name__)
         # create the subparser for each applications
         sub_parser = subparsers.add_parser(instance.name, help=instance.description)

src/jflow/workflow.py

@@ -97,6 +97,13 @@ class Workflow(threading.Thread):
                 os.makedirs(self.directory, 0751)
             self._serialize()
     
+    @staticmethod
+    def config_parser(arg_line):
+        for arg in arg_line.split():
+            if not arg.strip():
+                continue
+            yield arg
+    
     def __setstate__(self, state):
         self.__dict__ = state.copy()
         threading.Thread.__init__(self, name=self.name)