add arhicve track support

processing/api.py

@@ -208,6 +208,15 @@ def get_algorithm_id(self, algorithm):
             return r.json()["algorithmId"]
         raise IOError(r.text)
 
+    def archive_track(self, recording, track):
+        url = self.file_url + "/{}/tracks/{}/archive".format(
+            recording["id"], track["id"]
+        )
+        r = self.post(url)
+        if r.status_code == 200:
+            return
+        raise IOError(r.text)
+
     def update_track(self, recording, track):
         url = self.file_url + "/{}/tracks/{}".format(recording["id"], track["id"])
         post_data = {"data": json.dumps(track)}

processing/tagger.py

@@ -47,7 +47,7 @@ def get_significant_tracks(tracks, conf):
     for track in tracks:
         track[CONFIDENCE] = 0
         has_clear_prediction = False
-        for prediction in track[PREDICTIONS]:
+        for prediction in track.get(PREDICTIONS, []):
             if conf.ignore_tags is not None and prediction[LABEL] in conf.ignore_tags:
                 continue
 

processing/thermal.py

@@ -93,7 +93,10 @@ def track(conf, recording, api, duration, retrack, logger):
         if retrack:
             if "thumbnail" in track:
                 del track["thumbnail"]
-            api.update_track(recording, track)
+            if len(track["positions"]) == 0:
+                api.archive_track(recording, track)
+            else:
+                api.update_track(recording, track)
         else:
             track["id"] = api.add_track(
                 recording, track, tracking_result.tracking_algorithm