pomerium/scripts/protoc

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#!/bin/bash
set -euo pipefail
_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"
_protoc_version="4.0.0-rc2"
_protoc_version_filename="4.0.0-rc-2"
_protoc_path="/tmp/pomerium-protoc/protoc-$_protoc_version"
_os="linux"
if [ "$(uname -s)" == "Darwin" ]; then
_os="osx"
fi
mkdir -p "$_protoc_path"
if [ ! -f "$_protoc_path/bin/protoc" ]; then
echo "downloading protoc"
curl -L \
-o protoc.zip \
"https://github.com/protocolbuffers/protobuf/releases/download/v$_protoc_version/protoc-$_protoc_version_filename-$_os-x86_64.zip"
unzip -o -d "$_protoc_path" protoc.zip
rm protoc.zip
fi
exec "$_protoc_path/bin/protoc" \
--experimental_allow_proto3_optional \
--plugin="protoc-gen-go=$_dir/protoc-gen-go" \
--plugin="protoc-gen-grpc-web=$_dir/protoc-gen-grpc-web" \
"$@"