DEPENDS=$(cat "$SCRIPTDIR/board/$BOARD/ROOTFS")

build() {
	local SOURCE="$1"
	local BUILD="$2"
	local DEPLOY="$3"

	# setup skeleton
	mkdir -pv ${BUILD}/{bin,lib,etc,dev,sys,proc,tmp,var,run}
	mkdir -pv ${BUILD}/{boot,usr,srv,mnt,opt}
	mkdir -pv ${BUILD}/cfg/{preserve,overlay}

	echo "/lib" > "$BUILD/etc/ld-musl-${MUSL_CPU}.path"

	if [ -e "$SCRIPTDIR/board/$BOARD/LDPATH" ]; then
		cat "$SCRIPTDIR/board/$BOARD/LDPATH" >> "$BUILD/etc/ld-musl-${MUSL_CPU}.path"
	fi

	cp -r "$SCRIPTDIR/$PKGDIR/$PKGNAME/etc" "$BUILD"

	# install packages to rootfs
	dependencies | tsort | tac | grep -v "$PKGNAME" > "$BUILD/etc/packages"
	echo "toolchain" >> "$BUILD/etc/packages"

	while read pkgname; do
		if [ ! -e "$PKGDEPLOYDIR/$pkgname" ]; then
			continue
		fi

		cp -ru --remove-destination ${PKGDEPLOYDIR}/${pkgname}/* "$BUILD"
	done < "$BUILD/etc/packages"

	# version info
	local fname=$(echo "${OS_NAME}-release" | tr '[:upper:]' '[:lower:]')

	echo $OS_RELEASE > $BUILD/etc/$fname

	# setup root home directory
	cp -r "$BUILD/etc/skel" "$BUILD/root"
	chmod 750 "$BUILD/root"

	# move configuration to preserve directory
	mv ${BUILD}/etc ${BUILD}/cfg/preserve
	mkdir -p ${BUILD}/etc

	mv ${BUILD}/var/lib ${BUILD}/cfg/preserve/var_lib

	mv ${BUILD}/root ${BUILD}/cfg/preserve
	mkdir -p ${BUILD}/root
	chmod 750 ${BUILD}/root
	chmod 750 ${BUILD}/cfg/preserve/root
}

deploy() {
	local SOURCE="$1"
	local BUILD="$2"
	local DEPLOY="$3"

	mksquashfs "$BUILD" "$DEPLOY/rootfs.img" -all-root -no-progress -no-xattrs
}