#!/bin/sh

. /lib/partman/lib/base.sh

mkdir -p /var/lib/partman/autoused_swap

partitions=
for dev in /var/lib/partman/devices/*; do
	[ -d "$dev" ] || continue

	# Only run the first time each device is encountered
	devbase="$(basename "$dev")"
	[ ! -f "/var/lib/partman/autoused_swap/$devbase" ] || continue
	>"/var/lib/partman/autoused_swap/$devbase"

	cd $dev
	open_dialog PARTITIONS
	while { read_line num id size type fs path name; [ "$id" ]; }; do
		[ -f $id/detected_filesystem ] || continue
		fs=$(cat $id/detected_filesystem)
		if [ "$fs" = linux-swap ]; then
			partitions="$partitions $dev,$id"
		fi
	done
	close_dialog
done

for part in $partitions; do
	dev=${part%,*}
	id=${part#*,}
	[ -d $dev/$id ] || continue
	if [ -f $dev/$id/method ]; then
		method="$(cat $dev/$id/method)"
		if [ "$method" ] && [ "$method" != swap ]; then
			# Already used for something else, e.g. RAID
			continue
		fi
	fi
	echo swap >$dev/$id/method
	> $dev/$id/format
	update_partition $dev $id
done