#!/bin/bash
# -*- mode: sh; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
# vim: et sts=4 sw=4

#  SPDX-License-Identifier: LGPL-2.1+
#
#  Copyright © 2021 Collabora Ltd.
#  Copyright © 2021 Valve Corporation.
#
#  This file is part of steamos-customizations.
#
#  steamos-customizations is free software; you can redistribute it and/or
#  modify it under the terms of the GNU Lesser General Public License as
#  published by the Free Software Foundation; either version 2.1 of the License,
#  or (at your option) any later version.

set -eu

SYMLINKS_DIR=/dev/disk/by-partsets
FACTORY_RESET_CONFIG_DIR=/esp/efi/steamos/factory-reset
HOME_DEVICE=$SYMLINKS_DIR/all/home
ESP_DEVICE=$SYMLINKS_DIR/all/esp

cdir=${1:-$FACTORY_RESET_CONFIG_DIR}
wdir=$(mktemp -t -d rest-conf-XXXXXXXXXX)
dev=
opts=

for dev in $SYMLINKS_DIR/all/efi-*; do
    echo EFI $dev $(readlink -f $dev) > ${wdir}/${dev##*/}.cfg
done

for dev in $SYMLINKS_DIR/all/var-*; do
    opts=$(tune2fs -l "$dev" | sed -n 's/^Filesystem features:\s*//p')
    echo VAR $dev $(readlink -f $dev) "$opts" > ${wdir}/${dev##*/}.cfg
done

opts=$(tune2fs -l "$HOME_DEVICE" | sed -n 's/^Filesystem features:\s*//p')
echo HOME $HOME_DEVICE $(readlink -f $HOME_DEVICE) "$opts" > ${wdir}/home.cfg

mkdir -p "$cdir"
mv "${wdir}"/* "$cdir"
rmdir "$wdir"