api/scripts/breaking.sh

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#!/usr/bin/env bash
# Copyright Istio 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 -eu
branch="${1:?branch to compare against}"
# buf breaking --against ".git#branch=${branch}" does not work due to https://github.com/bufbuild/buf/issues/1003. Workaround it.
d="$(mktemp -d )"
trap '
rm -rf "${d}"
' EXIT
cwd="${PWD}"
pushd "${d}" > /dev/null || exit
git clone "${cwd}" -q -b "${branch}" api > /dev/null
cd api
buf build -o proto.bin
popd > /dev/null|| exit
buf breaking --against "${d}/api/proto.bin"