add tools

tools/prep

@@ -0,0 +1,58 @@
+#!/bin/sh
+
+TARGET_DIR=${2}
+
+usage() {
+	printf "${0} - prepare a directory for system image creation\n"
+	printf "usage: ${0} [-h] [-v] [-d] DIRECTORY\n"
+	printf "\n"
+	printf "${0} {-h --help}	Show this message\n"
+	printf "${0} {-v --version}	Show the version\n"
+	printf "${0} {-d --dir}		Prepare a directory\n"
+	printf "\n"
+	printf "prep is free software.\n"
+	printf "See the GNU GPL version 3 for details.\n"
+}
+
+usage_small () {
+	printf "usage: ${0} [-h] [-v] [-d]  DIRECTORY\n"
+}
+
+check_for_root() {
+	if [[ $(/usr/bin/id -u) -ne 0 ]]; then
+		printf "${0} must be run as root\n"
+		exit 1
+	fi
+}
+
+change_ownership() {
+	chown -Rv root:root ${2}
+	chgrp -v 13 ${2}/var/log/lastlog
+}
+
+case ${1} in
+	-h|--help)
+		usage "$@"
+		exit 0
+	;;
+	-v|--version)
+		printf "prep v1.0.0\n"
+		printf "everest-build-tools v1.0.0\n"
+		exit 0
+	;;
+	-d|--dir)
+		check_for_root "$@"
+		if [[ "${2}" == "" ]]; then
+			printf "No directory specified\n"
+			exit 1
+		fi
+
+		change_ownership "$@"
+	;;
+	*)
+		usage_small "$@"
+		exit 1
+esac
+
+usage_small "$@"
+exit 1