#!/bin/bash
# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
# ex: ts=8 sw=4 sts=4 et filetype=sh

# We depend on udev-rules being loaded
[[ "$1" = "-d" ]] && exit 0

# if we don't have btrfs (btrfsctl) installed on the host system,
# no point in trying to support it in the initramfs.
type -P btrfsctl >/dev/null || exit 1

. $dracutfunctions
[[ $debug ]] && set -x

is_btrfs() { get_fs_type /dev/block/$1 |grep -q btrfs; }

if [[ "$1" = "-h" ]]; then
    rootdev=$(find_root_block_device)
    if [[ $rootdev ]]; then
        is_btrfs "$rootdev" || exit 1
    fi
fi

exit 0