# Copyright (C) 2014 OpenWrt.org

move_config() {
	. /lib/upgrade/common.sh

	local device="$1"
	local fstype="$2"
	[ -n "$device" ] && [ -b "$device" ] && {
		mount -t "${fstype}" "$device" /mnt
		[ -f "/mnt/$BACKUP_FILE" ] && mv -f "/mnt/$BACKUP_FILE" /
		umount /mnt
	}
}

octeon_get_n821_disk() {
	local partnum=$1
	local MAJOR MINOR DEVNAME DEVTYPE
	while read line; do
		export -n "${line}"
	done < $(find /sys/bus/platform/devices/16f0000000000.ehci/ -path \*block/sd[a-z]/uevent)
	echo "/dev/${DEVNAME}${partnum}"
}

octeon_move_config() {
	. /lib/functions.sh

	case "$(board_name)" in
		erlite|\
		ubnt,usg)
			move_config "/dev/sda1" "vfat"
			;;
		itus,shield-router)
			move_config "/dev/mmcblk1p1" "vfat"
			;;
		er|\
		ubnt,edgerouter-4|\
		ubnt,edgerouter-6p)
			move_config "/dev/mmcblk0p1" "vfat"
			;;
		cisco,vedge1000)
			# Copy from the internal USB disk's first partition.
			# It is resolved from the device path to not be dependent on which
			# /dev/sd? path it is at, nor which UUID it happens to have.
			move_config "$(octeon_get_n821_disk 1)" "ext2"
			;;

	esac
}

boot_hook_add preinit_mount_root octeon_move_config