x230: warn if running build or upgrade as root

x230/build.sh

@@ -1,3 +1,7 @@
 #!/bin/bash
+. skulls_common.sh
+
+warn_not_root
+
 cd ..
 ./build.sh --clean-slate --commit $(ls -1 x230/config-* | cut -c 13-22) x230

x230/skulls_common.sh

@@ -43,3 +43,8 @@ check_battery() {
 	fi
 }
 
+warn_not_root() {
+	if [[ $EUID -eq 0 ]]; then
+		echo -e "${RED}This script should not be run as root!${NC}"
+	fi
+}

x230/upgrade.sh

@@ -7,6 +7,8 @@ NC='\033[0m'
 
 set -e
 
+. skulls_common.sh
+
 usage()
 {
 	echo "Skulls for the X230"
@@ -43,6 +45,8 @@ do
 	shift
 done
 
+warn_not_root
+
 command -v curl >/dev/null 2>&1 || { echo -e >&2 "${RED}Please install curl.${NC}"; exit 1; }
 
 CURRENT_VERSION=$(head -2 NEWS | egrep -o "([0-9]{1,}\.)+[0-9]{1,}")