#!/bin/sh
#
# ELWIX Build script for ELWIX CompactFlash image
#
# (C) AITNET ltd - Sofia/Bulgaria <office@aitnet.org>
#    by Michael Pounov <misho@elwix.org>
#
# $Id: build_fs.sh,v 1.12 2021/03/11 13:59:50 misho Exp $
#

[ -r ./config/rc.elwix ] && . ./config/rc.elwix
if [ X"${ELWIX_IS_CONFIGURED}" != X"YES" ]; then
	echo
	echo "ELWIX project is not configured !?!"
	echo
	exit 1
fi

if [ ! -d ${BSDSRC} ]; then
	echo
	echo "ELWIX project is not configured - missing BSD sources !?!"
	echo
	exit 1
fi

if [ "${USER}" != "root" ]; then
	echo
	echo "ELWIX project is not configured - FS must build under root !?!"
	echo
	exit 1
fi

clean_fsdir()
{
	echo "+++ Clean ELWIX FS ... $1"
	chflags -Rf nosunlink $1
	rm -rf $1 $2
}

build_fsdir()
{
	#
	# Structure of ELWIX CF Drive mount on /elwix
	#
	echo "+++ Build ELWIX FS directory ... $1"
	mkdir -p $1

	cd $1
# boot
	install -d boot;
# cf
	install -d cf;
# etc
	install -d etc;
# exports
	install -d exports;
# home
	install -d home;
# local
	install -d local;
	install -d local/lib;
# root
	install -d -m 0750 root;
# pkg
	install -d pkg;
# tftpboot
	install -d tftpboot;

	chown -hR root:wheel .
	cd -
}

create_etc_fstab()
{
	cat >$1/etc/fstab <<_EOF
# Automatic generated fstab for ELWIX $2 at ${BUILD_DATE}
#
_EOF
}

update_etc_cfexec()
{
	echo "mount = \"/elwix\"" >> $1/etc/cfexec.conf
}

install_fsdir()
{
	echo "+++ Install ELWIX RootFS $1 in bundle OS install file ..."
	OSZ=""

	install -v ${REL}/${ROOTFS_KERN} $1/boot/kernel/kernel.gz

	case "$2" in
		[Ee][Xx][Tt])
			install -d $1/usr
			cd $1/usr
			pax -r -z -pe -f ${REL}/${ROMFS_IMG}
			cd -

			install -d $1/pkg
			cd $1/pkg
			pax -r -z -pe -f ${REL}/${ROMFS_IMG2}
			cd -

			OSZ=${REL}/${OS_EXT}
			;;
		*)
			install -v ${REL}/${ROMFS_IMG} \
				$1/altroot/elwix-firmware-${VERSION}_${TARGET_ARCH}
			ln $1/altroot/elwix-firmware-${VERSION}_${TARGET_ARCH} \
				$1/altroot/${ROMFS_IMG}
			ln -s /elwix/altroot/elwix-firmware-${VERSION}_${TARGET_ARCH} \
				$1/${ROMFS_IMG}

			install -v ${REL}/${ROMFS_IMG2} \
				$1/altroot/elwix-firmware2-${VERSION}_${TARGET_ARCH}
			ln $1/altroot/elwix-firmware2-${VERSION}_${TARGET_ARCH} \
				$1/altroot/${ROMFS_IMG2}
			ln -s /elwix/altroot/elwix-firmware2-${VERSION}_${TARGET_ARCH} \
				$1/${ROMFS_IMG2}

			OSZ=${REL}/${OS}
			;;
	esac

	cd $1
	tar -czvf $OSZ .

	echo "+++ Completed ELWIX RootFS $1 --> $OSZ"
}

### main()
if [ ! -r ${REL}/${ROOTFS_KERN} -o ! -r ${REL}/${ROMFS_IMG} ]; then
	echo
	echo "Error:: not found kernel or firmware elwix files ..."
	echo
	echo " For fix this issue, please re-run build_rootfs.sh or build_romfs.sh"
	echo
	exit 1
fi

clean_fsdir ${FS} ${REL}/${OS} || exit 1
clean_fsdir ${FS_EXT} ${REL}/${OS_EXT} || exit 1

build_fsdir ${FS} || exit 1
build_fsdir ${FS_EXT} || exit 1

MakeFS_home ${FS} || exit 1
MakeFS_home ${FS_EXT} || exit 1

MakeFS_var ${FS} ${FS_ETC} || exit 1
MakeFS_var ${FS_EXT} ${FS_EXT_ETC} || exit 1

MakeFS_etc ${FS} ${FS_ETC} rootfs || exit 1
MakeFS_etc ${FS_EXT} ${FS_EXT_ETC} rootfsext || exit 1

create_etc_fstab ${FS} || exit 1
create_etc_fstab ${FS_EXT} ext || exit 1

update_etc_cfexec ${FS} || exit 1
update_etc_cfexec ${FS_EXT} ext || exit 1

MakeFS_boot ${FS} || exit 1
MakeFS_boot ${FS_EXT} || exit 1

install_fsdir ${FS} || exit 1
install_fsdir ${FS_EXT} ext || exit 1

echo "+++ Complete build ELWIX RootFS system"
echo "ELWIX RootFS finish version ${VERSION}, Good luck!"