#!/bin/bash
#
# Copyright (c) 2021 The Flatcar Maintainers.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

set -eu

cd $(dirname "$0")
source sdk_lib/sdk_container_common.sh

seed_version=""
target_version=""

declare -a cleanup

# --

usage() {
    echo "  Usage:"
    echo "  $0 <seed-sdk-version> <new-sdk-version> [-x <cleanup-script>]"
    echo
    echo "      This script will bootstrap a new SDK tarball using an SDK container."
    echo "      '$sdk_container_common_versionfile' will be updated to the target version."
    echo
    echo "       <seed-sdk-vernum>  - SDK version number (e.g. '3005.0.0') to use for bootstrapping."
    echo "                             The SDK container will be pulled and the tarball"
    echo "                             downloaded if necessary."
    echo "       <new-sdk-vernum>   - SDK version number (e.g. '3027.0.0') of the new SDK."
    echo "      -x <cleanup-script> - For each resource generated during build (container etc.)"
    echo "                             add a cleanup line to <script> which, when run, will free"
    echo "                             the resource. Useful for CI."
    echo "      -h                  - Print this help."
    echo
}
# --

while [ 0 -lt $# ] ; do
    case "$1" in
    -h) usage; exit 0;;
    -x) cleanup=("-x" "$2"); shift; shift;;
    *)  if [ -z "$seed_version" ] ; then
            seed_version="$1"
        elif [ -z "$target_version" ] ; then
            target_version="$1"
        else
            echo "ERROR: Spurious positional parameter '$1'"
            usage; exit 1;
        fi
        shift;;
    esac
done

if [ -z "$seed_version" -o -z "$target_version" ] ; then
    echo "ERROR: Missing seed and /or target SDK version."
    usage
    exit 1
fi
# --

vernum="$(strip_version_prefix "$target_version")"
if is_official "$vernum" ; then
    official="true"
else
    official="false"
fi

yell "\n######\n###### Bootstrapping SDK version $target_version from seed ($seed_version)"

if $official; then
    export COREOS_OFFICIAL=1
fi

# bootstrap_sdk needs FLATCAR_SDK_VERSION set to the seed version
./run_sdk_container "${cleanup[@]}" -V "$seed_version" -v "$target_version" \
          sudo -E ./bootstrap_sdk

# Update versionfile to the actual SDK version
create_versionfile "${target_version}"