Support @bufbuild/protobuf

[srikrsna-buf]

Add support for @bufbuild/protobuf runtime

This PR adds support for generating service definitions compatible with the @bufbuild/protobuf runtime, a popular and conformant protobuf implementation.

What this PR does:

Adds a new plugin option called runtime to select the protobuf runtime. Supported values are bufbuild-protobuf and defaults to use google-protobuf. When the runtime is set to bufbuild-protobuf, the plugin generates service definitions that use @bufbuild/protobuf's message types and serialization methods instead of the default runtime.

Why this change?

@bufbuild/protobuf supports Editions and passes significantly more conformance tests than currently supported runtimes, ensuring better protocol buffer compatibility.

Usage

Alongside grpc-tools, users will need to install @bufbuild/protoc-gen-es and change the grpc_tools_node_protoc call to use the new runtime and use the protoc-gen-es:

npm install -g grpc-tools @bufbuild/protoc-gen-es
grpc_tools_node_protoc --es_out=target=js,js_import_style=legacy_commonjs:../helloworld/static_codegen_es/ --grpc_out=grpc_js,runtime=bufbuild-protobuf:../helloworld/static_codegen_es/ helloworld.proto

Alternatives

Happy to discuss other options like a separate runtime package or plugin package. Having either of those will also bring TypeScript and ESM support.

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: timostamm / name: Timo Stamm (fc392e9)
• ✅ login: srikrsna-buf / name: Sri Krishna (40b50ff, 403a111, 80cb537, 34f2532)