[rt2fs] retry on failed ticket dump

rt2fs

@@ -52,8 +52,9 @@ os.makedirs("attachments", exist_ok=True)
 
 ticket_ids = range(config["rt_start"], config["rt_end"])
 
-def dump(id):
+def dump(id, retries=3):
     print(f"Dumping RT#{id}")
+    try:
         ticket_dumpfile = f"tickets/{id}"
         if not os.path.exists(ticket_dumpfile):
             ticket = rt.get_ticket(id)
@@ -80,6 +81,10 @@ def dump(id):
                 data = {"ticket": ticket, "history": history}
                 with open(ticket_dumpfile, "wb") as handle:
                     pickle.dump(data, handle)
+    except:
+        print(f"Failed to dump RT#{id}.. ({retries} retries left)")
+        if retries > 0:
+            dump(id, retries - 1)
 
 worker_count = 4
 with Pool(worker_count) as p: