#!/bin/sh -Cefux


set -Cefux


pool=zroot


base_dir=/root/files/fbsd/release/dist


dir_clean="$base_dir/clean"

dir_clean_new="$dir_clean.new"


dir_full="$base_dir/full"

dir_full_new="$dir_full.new"


dir_jail="$base_dir/jail"

dir_jail_new="$dir_jail.new"


_make()
{
	local jobs_arg=
	
	
	case "$*"
	in
		*build*) jobs_arg="-j $((`sysctl -n hw.ncpu` * 2))" ;;
	esac
	
	
	time -h make -C /usr/src $jobs_arg $@
}


_tar_tar()
{
	local src="$1"
	
	local dst="$2"
	
	
	tar -cf- -C "$src" . | tar -vxpf- -C "$dst"
}


_install_clean()
{
	zfs create "$pool$dir_clean_new"
	
	_make installworld installkernel distribution "DESTDIR=$dir_clean_new"
	
	zfs set readonly=on "$pool$dir_clean_new"
	
	zfs destroy "$pool$dir_clean"
	
	zfs rename "$pool$dir_clean_new" "$pool$dir_clean"
}


_install_full()
{
	zfs create "$pool$dir_full_new"
	
	_tar_tar "$dir_clean" "$dir_full_new"
	
	zfs set readonly=on "$pool$dir_full_new"
	
	zfs destroy "$pool$dir_full"
	
	zfs rename "$pool$dir_full_new" "$pool$dir_full"
}


_install_jail()
{
	zfs create "$pool$dir_jail_new"
	
	_tar_tar "$dir_clean" "$dir_jail_new"
	
	/root/files/copy-overlay-jail.sh
	
	zfs set readonly=on "$pool$dir_jail_new"
}


case "$1"
in
	o) rm -vfr /usr/obj ;;
	
	b) _make buildworld buildkernel ;;
	
	i-k) _make installkernel      ;;
	e-p) etcupdate -p             ;;
	i-w) _make installworld       ;;
	e-b) etcupdate -B             ;;
	e-r) etcupdate resolve        ;;
	c)   _make check-old          ;;
	d)   _make delete-old         ;;
	d-l) _make delete-old-libs    ;;
	k-c) rm -vfr /boot/kernel.old ;;
	
	ic) _install_clean ;;
	f)  _install_full  ;;
	j)  _install_jail  ;;
	
	z-d) zfs destroy "$pool$dir_jail"                     ;;
	z-r) zfs rename "$pool$dir_jail_new" "$pool$dir_jail" ;;
	
	u) tail -27 "$0" ;;
	
	*) exit 1 ;;
esac