axum/examples/rest-grpc-multiplex/build.rs

use std::{env, path::PathBuf};

fn main() {
    let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());

    tonic_build::configure()
        .file_descriptor_set_path(out_dir.join("helloworld_descriptor.bin"))
        .compile(&["proto/helloworld.proto"], &["/proto"])
        .unwrap();
}