Add a tool to backfill the upload flags from the registry data.

tools/backfilluploadingflag.py

@@ -0,0 +1,20 @@
+import logging
+
+from data.database import ImageStorage
+from app import storage
+
+logging.basicConfig(level=logging.DEBUG)
+logger = logging.getLogger(__name__)
+
+for image_storage in ImageStorage.select(ImageStorage.uploading == None).limit(1000):
+  mark_path = storage.image_mark_path(None, None, None, image_storage.uuid)
+  json_path = storage.image_json_path(None, None, None, image_storage.uuid)
+
+  logger.debug('Mark path: %s Json path: %s', mark_path, json_path)
+
+  if storage.exists(json_path):
+    image_storage.uploading = storage.exists(mark_path)
+    logger.debug('Image existed and was currently uploading: %s', image_storage.uploading)
+    # image_storage.save()
+  else:
+    logger.warning('Image does not exist.')