tasks: Set state to 'DONE' for done tasks

... based on the file path.

Sometimes info.json is moved before the state
is set to DONE. we need to fix this in girar, but for now
we opt for a simpler workaround.

port_stats/tasks.py

@@ -50,6 +50,11 @@ def load_task(task_path, cached_task=None, now=None):
 
         with open(info_path) as f:
             data = json.load(f)
+            # hack(iv@): sometimes info.json is moved before the state
+            # is set to DONE. we need to fix this in girar, but for now
+            # we opt for a simpler workaround:
+            if '/archive/done/' in task_path:
+                data['state'] = 'DONE'
     except Exception as ex:
         LOG.error("Failed to load task info from %s: %s", task_path, ex)
         return cached_task