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#! /bin/bash
# Copyright 2019 The gRPC 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 -e
BUILDOZER_VERSION="4.2.2"
TEMP_BUILDOZER_PATH="/tmp/buildozer-for-grpc"
MAX_DOWNLOAD_RETRY=5
DOWNLOAD_WAITING_INTERVAL_SECS=10
function error_handling() {
error=$1
if [[ -n "$error" ]]; then
echo "${error}"
exit 1
fi
}
function download_buildozer() {
platform="$(uname -sm)"
case "${platform}" in
"Linux x86_64") download_link="https://github.com/bazelbuild/buildtools/releases/download/${BUILDOZER_VERSION}/buildozer-linux-amd64";;
"Linux aarch64") download_link="https://github.com/bazelbuild/buildtools/releases/download/${BUILDOZER_VERSION}/buildozer-linux-arm64";;
"Darwin x86_64") download_link="https://github.com/bazelbuild/buildtools/releases/download/${BUILDOZER_VERSION}/buildozer-darwin-amd64";;
"Darwin arm64") download_link="https://github.com/bazelbuild/buildtools/releases/download/${BUILDOZER_VERSION}/buildozer-darwin-arm64";;
*) error_handling "Unsupported platform: ${platform}";;
esac
download_success=0
for i in $(seq 1 $MAX_DOWNLOAD_RETRY); do
if [ -x "$(command -v curl)" ]; then
http_code=`curl -L -o ${TEMP_BUILDOZER_PATH} -w "%{http_code}" ${download_link}`
if [ $http_code -eq "200" ]; then
download_success=1
fi
elif [ -x "$(command -v wget)" ]; then
wget -S -O ${TEMP_BUILDOZER_PATH} ${download_link} 2>&1 | grep "200 OK" && download_success=1
else
error_handling "Download failed: curl and wget not available"
fi
if [ $download_success -eq 1 ]; then
break
elif [ $i -lt $MAX_DOWNLOAD_RETRY ]; then
echo "Failed to download buildozer: retrying in $DOWNLOAD_WAITING_INTERVAL_SECS secs"
sleep $DOWNLOAD_WAITING_INTERVAL_SECS
fi
done
if [ $download_success -ne 1 ]; then
error_handling "Failed to download buildozer after $MAX_DOWNLOAD_RETRY tries"
fi
chmod +x ${TEMP_BUILDOZER_PATH}
}
# Get the correct version of buildozer
if [ -x "$(command -v buildozer)" ]; then
existing_buildozer_version="$(buildozer -version 2>&1 | head -n1 | cut -d" " -f3)"
if [[ "${existing_buildozer_version}" != "${BUILDOZER_VERSION}" ]]; then
download_buildozer
buildozer_bin="${TEMP_BUILDOZER_PATH}"
else
buildozer_bin="buildozer"
fi
else
if [ -x ${TEMP_BUILDOZER_PATH} ]; then
existing_buildozer_version="$(${TEMP_BUILDOZER_PATH} -version 2>&1 | head -n1 | cut -d" " -f3)"
if [[ "${existing_buildozer_version}" != "${BUILDOZER_VERSION}" ]]; then
download_buildozer
fi
else
download_buildozer
fi
buildozer_bin="${TEMP_BUILDOZER_PATH}"
fi
# cd to repo root
dir=$(dirname "${0}")
cd "${dir}/../.."
set -ex
# shellcheck disable=SC2086,SC2068
${buildozer_bin} "$@"
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