#! /bin/sh
if [ -z "$@" ] ; then
  cat << EOF
Usage:
% ${0} block-device-name

e.g. block-device-name is sda.
EOF
  exit
fi

if [ ! -b /dev/${1} ] ; then
  cat << EOF
/dev/${1} does not exist.
EOF
  exit
fi

parted /dev/${1} mklabel gpt
parted /dev/${1} mkpart persistence ext4 2048s -- -34s
partprobe
sync
mkfs.f2fs -l persistence /dev/${1}1
mntdir=$(mktemp -d /tmp/tmp.XXXXXXXX)
mount /dev/${1}1 ${mntdir}
cat > ${mntdir}/persistence.conf << "EOF"
/etc link,source=etc
/home bind,source=home
/export bind,source=export
/build bind,source=build
/var/xdroid/common bind,source=xdroid
EOF
for i in etc home export build common ; do
  mkdir ${mntdir}/${i}
done
umount ${mntdir}
sync