From 03c360e3dbdedc68c6fdeefd5453fe86eac1f097 Mon Sep 17 00:00:00 2001
From: Kun Lu <kun.lu@ibm.com>
Date: Mon, 14 Jun 2021 14:01:30 -0400
Subject: [PATCH] Update scripts/compute-tags.sh

Signed-off-by: Kun Lu <kun.lu@ibm.com>

Co-authored-by: Yuri Shkuro <yurishkuro@users.noreply.github.com>
---
 scripts/compute-tags.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/compute-tags.sh b/scripts/compute-tags.sh
index ac139b0d1a7..342e3c70b3f 100644
--- a/scripts/compute-tags.sh
+++ b/scripts/compute-tags.sh
@@ -5,6 +5,7 @@
 set -exu
 
 BASE_BUILD_IMAGE=$1
+BRANCH=${BRANCH:?'expecting BRANCH env var'}
 
 ## if we are on a release tag, let's extract the version number
 ## the other possible value, currently, is 'master' (or another branch name)