Ignroe annoying macOS related folders when enumerating

benchmark/farm.py

@@ -236,6 +236,8 @@ def latestDirGet(path):
     """
     max_file = None
     for f in os.listdir(path):
+        if f in (".DS_Store", ):
+            continue
         x = int(f)
         if not max_file or x > max_file:
             max_file = x