#!/bin/sh

CHROOT_BUILD=/home/chroot-build
CHROOT_CLEAN=/home/chroot-clean

chroot_build () {
	local CHROOT="$1"
	if [ ! -d "$CHROOT/proc/1" ]; then
		echo "Mounting virtual filesystems..."
		mount -t proc proc $CHROOT/proc
		mount -t sysfs sysfs $CHROOT/sys
		mount -t devpts devpts $CHROOT/dev/pts
		mount -t tmpfs shm $CHROOT/dev/shm
		mount -o bind /home/slitaz $CHROOT/home/slitaz
		if [ ! -d $CHROOT/var/cache/tazpkg ]; then
			mkdir -p $CHROOT/var/cache/tazpkg
		fi
		mount -o bind /var/cache/tazpkg $CHROOT/var/cache/tazpkg
		chroot $CHROOT ./chroot_script.sh
		#until [ "$ps" = "2" ]; do
		#	echo "Waiting for the end of all other chroot processes..."
		#	ps=$(ps | grep `basename $0` | grep -v grep | grep -v basename | wc -l)
		#	sleep 1
		#done
		umount -l $CHROOT/var/cache/tazpkg
		umount -l $CHROOT/home/slitaz
		umount -l $CHROOT/dev/shm
		umount -l $CHROOT/dev/pts
		umount -l $CHROOT/sys
		umount -l $CHROOT/proc
	else
		echo "The chroot is already mounted"
	fi
}

chroot_create () {
	local CHROOTDIR="$1"
	mkdir -p $CHROOTDIR
	tazpkg get-install busybox --root"$CHROOTDIR"
	echo "No" | tazpkg get-install bash --root="$CHROOTDIR"
	tazpkg get-install slitaz-toolchain --root="$CHROOTDIR"
	tazpkg get-install tazwok --root="$CHROOTDIR"
	tazpkg get-install lzma --root="$CHROOTDIR"
	tazpkg get-install tazbb --root="$CHROOTDIR"
	#tazpkg get-install gettext --root="$CHROOTDIR"
	mkdir -p $CHROOTDIR/home/slitaz
	cat /etc/resolv.conf > $CHROOTDIR/etc/resolv.conf
	chroot $CHROOTDIR tazpkg recharge --root="$CHROOTDIR"
}

if [ -d $CHROOT_BUILD ]; then
	rm -R $CHROOT_BUILD
fi

if [ ! -d $CHROOT_CLEAN ]; then
	chroot_create $CHROOT_CLEAN
	if [ ! -f $CHROOT_CLEAN/chroot_script.sh ]; then
		cat > $CHROOT_CLEAN/chroot_script.sh << "EOF"
#!/bin/sh
LC_ALL=C
/bin/sh --login
EOF
		chmod +x "$CHROOT_CLEAN/chroot_script.sh"
	fi
fi

if [ -d $CHROOT_CLEAN ]; then
	cp -a $CHROOT_CLEAN $CHROOT_BUILD
fi

if [ -d $CHROOT_BUILD ]; then
	chroot_build $CHROOT_BUILD
fi