Try checking empty instead of not empty

Author: wrandall22

entrypoint.sh

@@ -54,7 +54,7 @@ case $AMPLIFY_COMMAND in
   deploy)
     echo "deploying"
 
-    if [[ ! -z $(aws amplify get-branch --app-id=${AmplifyAppId} --branch-name=$BRANCH_NAME --region=${AWS_REGION} 2> /dev/null) ]]; then
+    if [[ -z $(aws amplify get-branch --app-id=${AmplifyAppId} --branch-name=$BRANCH_NAME --region=${AWS_REGION} 2> /dev/null) ]]; then
       echo "Creating the Amplify branch"
       sh -c "aws amplify create-branch --app-id=${AmplifyAppId} --branch-name=$BRANCH_NAME  \
                 ${backend_env_arg} ${environment_variables_arg} --region=${AWS_REGION}"