bazel

#!/bin/bash

set -e

# courtesy of https://github.com/grpc/grpc

# DISABLE_BAZEL_WRAPPER can be set to eliminate the wrapper logic
if [ "${DISABLE_BAZEL_WRAPPER}" != "" ] && [ "${OVERRIDE_BAZEL_VERSION}" == "" ]; then
	if [ "${BAZEL_REAL}" != "" ]; then
		# use BAZEL_REAL as set by
		# https://github.com/bazelbuild/bazel/blob/master/scripts/packages/bazel.sh
		# that originally invoked this script (this is what happens when you
		# run "bazel" in our workspace)
		exec -a "$0" "${BAZEL_REAL}" "$@"
	else
		# if BAZEL_REAL is not set, just invoke the default system bazel
		exec bazel "$@"
	fi
fi

VERSION=${OVERRIDE_BAZEL_VERSION:-5.3.1}
echo "INFO: Running bazel wrapper (see //tools/bazel for details), bazel version $VERSION will be used instead of system-wide bazel installation." >&2

BASEURL_MIRROR="https://storage.googleapis.com/grpc-bazel-mirror/github.com/bazelbuild/bazel/releases/download"
BASEURL="https://github.com/bazelbuild/bazel/releases/download"
pushd "$(dirname "$0")" >/dev/null
# bazel binary will be downloaded to GIT_ROOT/tools directory by default
DOWNLOAD_DIR=${OVERRIDE_BAZEL_WRAPPER_DOWNLOAD_DIR:-$(pwd)}

case $(uname -sm) in
"Linux x86_64")
	suffix=linux-x86_64
	;;
"Linux aarch64")
	suffix=linux-arm64
	;;
"Darwin x86_64")
	suffix=darwin-x86_64
	;;
"Darwin arm64")
	suffix=darwin-arm64
	;;
"MINGW"* | "MSYS_NT"*)
	suffix=windows-x86_64.exe
	;;
*)
	echo "Unsupported architecture: $(uname -sm)" >&2
	exit 1
	;;
esac

filename="bazel-$VERSION-$suffix"
filename_abs="${DOWNLOAD_DIR}/${filename}"

if [ ! -x "${filename_abs}" ]; then
	# first try to download using mirror, fallback to download from github
	echo "Downloading bazel, will try URLs: ${BASEURL_MIRROR}/${VERSION}/${filename} ${BASEURL}/${VERSION}/${filename}" >&2
	curl --fail -L --output "${filename_abs}" "${BASEURL_MIRROR}/${VERSION}/${filename}" || curl --fail -L --output "${filename_abs}" "${BASEURL}/${VERSION}/${filename}"
	chmod a+x "${filename_abs}"
fi

pushd ../grpc-client >/dev/null
! [[ -d "thirdparty" ]] && mkdir -p thirdparty
pushd thirdparty >/dev/null
# We will only need the stubs, not the submodules.
! [[ -d "protobuf" ]] && git clone -b v3.19.4 --depth 1 https://github.com/protocolbuffers/protobuf.git
popd >/dev/null
popd >/dev/null

popd >/dev/null
exec "${filename_abs}" "$@"