Added error function to config.sh

runner_scripts/root/config.sh

@@ -8,6 +8,12 @@ TXT_GREEN="\e[32m"
 TXT_CLEAR="\e[0m"
 TXT_BOLD="\e[1m"
 
+function error {
+    : "${RV:=${2:-$BUILD_FAILURE_EXIT_CODE}}"
+    echo -e "${TXT_RED}${TXT_BOLD}$1${TXT_CLEAR}" >&2
+    return "$RV"
+}
+
 [ -z "${CUSTOM_ENV_AUTH_USER:+x}" ] && error "AUTH_USER CI/CD variable has not been set."
 [ -z "${CUSTOM_ENV_AUTH_KEY:+x}" ] && error "AUTH_KEY secret CI/CD variable has not been set."