double quote env var for binary operator

mohit · mohit · commit c8e7e6c67c53 · 2017-06-06T00:38:21.000Z
diff --git a/circleci/docker-publish b/circleci/docker-publish
@@ -50,7 +50,7 @@ ORG=$4
 
 # Check CLI + env vars for DockerHub and (conditonally) ECR
 check_hub_vars
-if [ $ECR_PUSH_ID != "" ]; then
+if [ "$ECR_PUSH_ID" != "" ]; then
   check_ecr_vars
 fi
 
