removing generation field from final output object

Author: kapilkd13

cwltool/main.py

@@ -915,6 +915,9 @@ def locToPath(p):
 
                 visit_class(out, ("File", "Directory"), locToPath)
 
+                # Unsetting the Generation fron final output object
+                visit_class(out,("File",), MutationManager().unset_generation)
+
                 if isinstance(out, six.string_types):
                     stdout.write(out)
                 else:

cwltool/mutation.py

@@ -67,3 +67,7 @@ def set_generation(self, obj):
         loc = obj["location"]
         current = self.generations.get(loc, MutationState(0,[], ""))
         obj[_generation] = current.generation
+
+    def unset_generation(self, obj):
+        # type: (Dict) -> None
+        obj.pop(_generation, None)