#!/bin/bash

source colors.sh

export LFS="$1"

if [ -z "${LFS}" ]; then
	echo -e "${RED}Require first argument as path to LFS build!${RST}"
	exit 1
fi

if [ "${USER}" == "root" ]; then
	echo -e "${GRN}Changing ownership to root...${RST}"
	chown -R root:root ${LFS}/bin
	chown -R root:root ${LFS}/etc
	chown -R root:root ${LFS}/lib
	chown -R root:root ${LFS}/sbin
	chown -R root:root ${LFS}/tools
	chown -R root:root ${LFS}/usr
	chown -R root:root ${LFS}/var

	case $(uname -m) in
		x86_64) chown -R root:root ${LFS}/lib64 ;;
	esac

	echo -e "${GRN}Creating virtual kernel filesystem mountpoints...${RST}"
	mkdir -p ${LFS}/dev
	mkdir -p ${LFS}/proc
	mkdir -p ${LFS}/run
	mkdir -p ${LFS}/sys
	
	echo -e "${GRN}Creating initial device nodes...${RST}"
	mknod -m 600 ${LFS}/dev/console c 5 1 >/dev/null 2>&1
	mknod -m 666 ${LFS}/dev/null c 1 3 >/dev/null 2>&1
	
	echo -e "${GRN}Mounting virtual kernel filesystems...${RST}"
	mountpoint ${LFS}/dev >/dev/null 2>&1
	retval=$?
	if [ "$retval" -ne 0 ]; then
		mount -v --bind /dev ${LFS}/dev
	else
		echo -e "  ${YLW}${LFS}/dev${GRN} is already mounted${RST}"
	fi
	mountpoint ${LFS}/dev/pts >/dev/null 2>&1
	if [ "$?" -ne 0 ]; then
		mount -v --bind /dev/pts ${LFS}/dev/pts
	else
		echo -e "  ${YLW}${LFS}/dev/pts${GRN} is already mounted${RST}"
	fi
	mountpoint ${LFS}/proc >/dev/null 2>&1
	if [ "$?" -ne 0 ]; then
		mount -v --bind /proc ${LFS}/proc
	else
		echo -e "  ${YLW}${LFS}/proc${GRN} is already mounted${RST}"
	fi
	mountpoint ${LFS}/sys >/dev/null 2>&1
	if [ "$?" -ne 0 ]; then
		mount -v --bind /sys ${LFS}/sys
	else
		echo -e "  ${YLW}${LFS}/sys${GRN} is already mounted${RST}"
	fi
	mountpoint ${LFS}/run >/dev/null 2>&1
	if [ "$?" -ne 0 ]; then
		mount -v --bind /run ${LFS}/run
	else
		echo -e "  ${YLW}${LFS}/run${GRN} is already mounted${RST}"
	fi

	if [ -h ${LFS}/dev/shm ]; then
		mkdir -pv ${LFS}/$(readlink ${LFS}/dev/shm)
	fi

else
	echo -e "${RED}preparechroot.sh must be ran as ${YLW}root${RED} user!${RST}"
fi