#!/bin/bash

: ${INSTALL_ROOT="/mnt/magellan"}
KNOWN_DISKS="ROOT BOOT SWAP HOME TMP USER VAR SVR OPT"

# root device
sed -i "s:^/dev/ROOT.*:${PARTITION_DISK_ROOT}	/		${PARTITION_FS_ROOT}		defaults,noatime	0 0:" ${INSTALL_ROOT}/etc/fstab
# swap device
sed -i "s:^/dev/SWAP.*:${PARTITION_DISK_SWAP}	swap		swap		pri=1			0 0:" ${INSTALL_ROOT}/etc/fstab

# boot
if [[ -z ${PARTITION_DISK_BOOT} ]]
then
	# delete the entry
	sed -i 's/\/dev\/ROOT.*/d' ${INSTALL_ROOT}/etc/fstab
else
	sed -i "s:^/dev/BOOT.*:${PARTITION_DISK_BOOT}	/boot		${PARTITION_FS_BOOT}		noauto,noatime	1 1:" ${INSTALL_ROOT}/etc/fstab
fi

# then all other
for disk in ${KNOWN_DISKS}
do
	case ${disk} in
		HOME) dest=/home ;;
		TMP) dest=/tmp ;;
		USER) dest=/usr ;;
		VAR) dest=/var ;;
		SVR) dest=/svr ;;
		OPT) dest=/opt ;;
		*) continue ;;
	esac

	disk_part=$(eval echo \$PARTITION_DISK_${disk})
	disk_fs=$(eval echo \$PARTITION_FS_${disk})

	if [[ ! -z ${disk_part} ]]
	then
		if [[ -z $(grep ^${disk_part} ${INSTALL_ROOT}/etc/fstab) ]]
		then
			echo "${disk_part}	${dest}		${disk_fs}		defaults,noatime	0 0" >> ${INSTALL_ROOT}/etc/fstab
		else
			sed -i "s:^${disk_part}.*:${disk_part}	${dest}		${disk_fs}		defaults,noatime	0 0:" ${INSTALL_ROOT}/etc/fstab
		fi
	fi
done