#!/usr/bin/env bash
# Copyright 2019 The Kubernetes Authors.
#
# 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.

set -o errexit
set -o nounset
set -o pipefail

REPO_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
DIFFROOT="${REPO_ROOT}/config"
TMP_ROOT="${REPO_ROOT}/_tmp"


cleanup() {
    rm -rf "${TMP_ROOT}"
}
trap "cleanup" EXIT SIGINT
cleanup

MANIFEST_ROOT=$TMP_ROOT make generate-manifests

echo "diffing ${DIFFROOT} against freshly generated manifests"
ret=0
git diff --no-index --diff-filter=MD ${TMP_ROOT} ${DIFFROOT} || ret=$?
if [[ $ret -eq 0 ]]
then
    echo "Manifests in ${DIFFROOT} are up to date."
else
    echo "Manifests in ${DIFFROOT} are out of date. Please run \`make generate-manifests\`"
    exit 1
fi
