#!/bin/bash
# ------------------------------------------------------------------------------
#
#                        OpenSLX Toolkit Next Gen
#
# ------------------------------------------------------------------------------
#
# The next generation toolkit to build a stateless linux system bootable
# over the network. Composed of dracut-built initramfs and a full system clone.
#
# ------------------------------------------------------------------------------
#
#                                Main Code
#
# ------------------------------------------------------------------------------

declare -rg ARG0="$0"
declare -rg SELF="$(readlink -f "${ARG0}")"
declare -rg ROOT_DIR="$(dirname "${SELF}")"
declare -rg SELF_PID="$$"

# let's keep it simple for now, just source our config/functions file
. "${ROOT_DIR}/${ARG0}".functions || perror "Could not source functions."
. "${ROOT_DIR}/${ARG0}".config || perror "Could not source config."

# root check
if [ "$(id -u)" -ne 0 ]; then
	banner
	perror "ERROR: You need to be root to use this toolkit."
else
	banner
fi

# do we even have tools?
for TOOL in qemu-img qemu-nbd mkfs.ext4; do
	which "${TOOL}" &>/dev/null || \
		perror "Could not find '${TOOL}'. Please install it."
done

# setup trap
trap cleanexit SIGINT SIGTERM

# read params
read_params $@

# react to given action
if [ "x$ACTION" == "xCLONE" ]; then
	clone_stage4 || perror "Cloning stage4 failed with: $?"
elif [ "x$ACTION" == "xPACKAGE" ]; then
	pack_qcow2 || perror "Packing as QCoW2 failed with: $?"
else
	pwarning "No action given."
	print_usage
fi