From 807ffd43be130ebc14cc5b2bb961a4c8359c8af0 Mon Sep 17 00:00:00 2001
From: Sameer Naik <sameer@damagehead.com>
Date: Fri, 22 Jan 2016 18:29:49 +0530
Subject: [PATCH] ensure `CACHE_VERSION` is defined before performing version
 comparison

---
 assets/runtime/functions | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/assets/runtime/functions b/assets/runtime/functions
index bcbf8122..12ed4a13 100644
--- a/assets/runtime/functions
+++ b/assets/runtime/functions
@@ -1106,7 +1106,7 @@ migrate_database() {
     fi
 
     if [[ $(vercmp ${GITLAB_VERSION} 8.0.0) -gt 0 ]]; then
-      if [[ $(vercmp ${CACHE_VERSION} 8.0.0) -lt 0 ]]; then
+      if [[ -n ${CACHE_VERSION} && $(vercmp ${CACHE_VERSION} 8.0.0) -lt 0 ]]; then
         echo
         echo "ABORT: "
         echo "  Upgrading to GitLab ${GITLAB_VERSION} from ${CACHE_VERSION} is not recommended."