- Add a log entry for repo verb handling and make the container usage calculation take it into account

- Move all the repo push/pull/verb logging into a central track_and_log method
- Readd images accidentally deleted in the last CL
- Make the uncompressed size migration script better handle exceptions

util/uncompressedsize.py

@@ -25,6 +25,8 @@ def backfill_sizes_from_data():
   ch.setFormatter(formatter)
   logger.addHandler(ch)
 
+  encountered = set()
+
   while True:
     # Load the record from the DB.
     batch_ids = list(ImageStorage
@@ -33,12 +35,15 @@ def backfill_sizes_from_data():
                             ImageStorage.uploading == False)
                      .limit(100)
                      .order_by(db_random_func()))
+
+    batch_ids = set(batch_ids) - encountered
     if len(batch_ids) == 0:
       # We're done!
       return
 
     for record in batch_ids:
       uuid = record.uuid
+      encountered.add(uuid)
 
       try:
         with_locs = model.get_storage_by_uuid(uuid)
@@ -76,6 +81,8 @@ def backfill_sizes_from_data():
 
       except model.InvalidImageException:
         logger.warning('Storage with uuid no longer exists: %s', uuid)
+      except IOError:
+        logger.warning('IOError on %s', uuid)
       except MemoryError:
         logger.warning('MemoryError on %s', uuid)