#!/bin/bash
#
# Copyright 2015 Hewlett-Packard Development Company, L.P.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

if [ ${DIB_DEBUG_TRACE:-1} -gt 0 ]; then
    set -x
fi
set -eu
set -o pipefail

# Get signed kernel version
LATEST_SIGNED_KERNEL=$(ls /boot/vmlinu*.efi.signed | sort | tail -1)
if [ "$LATEST_SIGNED_KERNEL" == "" ]; then
    echo "Unable to find a suitable kernel" >>/dev/stderr
    exit 1
fi

SIGNED_KERNEL_VERSION=${LATEST_SIGNED_KERNEL##/boot/vmlinu[zx]-}
echo "Found signed ubuntu kernel version $SIGNED_KERNEL_VERSION"

cat > /dib-signed-kernel-version << EOF
DIB_SIGNED_KERNEL_VERSION=$SIGNED_KERNEL_VERSION
EOF