From 1df6dc8378a26fd85a03653595cf91eca493a45b Mon Sep 17 00:00:00 2001
From: Daniel Gasienica <daniel@signal.org>
Date: Wed, 28 Mar 2018 10:10:45 -0400
Subject: [PATCH] Abort processing if there are no more messages

---
 js/modules/messages_data_migrator.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/js/modules/messages_data_migrator.js b/js/modules/messages_data_migrator.js
index 165905bc2..c00c27b6c 100644
--- a/js/modules/messages_data_migrator.js
+++ b/js/modules/messages_data_migrator.js
@@ -110,6 +110,10 @@ exports.processAll = async ({ Backbone, upgradeMessageSchema } = {}) => {
     const fetchDuration = Date.now() - fetchUnprocessedMessagesStartTime;
     const numUnprocessedMessages = unprocessedMessages.length;
 
+    if (numUnprocessedMessages === 0) {
+      break;
+    }
+
     const upgradeStartTime = Date.now();
     const upgradedMessages =
       // eslint-disable-next-line no-await-in-loop