use std::io::Result; fn main() -> Result<()> { #[allow(unused_mut)] let mut builder = tonic_build::configure(); #[cfg(feature = "tonic-reflection")] { let out_dir = std::path::PathBuf::from(std::env::var("OUT_DIR").unwrap()); let descriptor_path = out_dir.join("tvix.build.v1.bin"); builder = builder.file_descriptor_set_path(descriptor_path); }; // https://github.com/hyperium/tonic/issues/908 let mut config = prost_build::Config::new(); config.bytes(["."]); config.extern_path(".tvix.castore.v1", "::tvix_castore::proto"); builder .build_server(true) .build_client(true) .emit_rerun_if_changed(false) .compile_with_config( config, &[ "tvix/build/protos/build.proto", "tvix/build/protos/rpc_build.proto", ], // If we are in running `cargo build` manually, using `../..` works fine, // but in case we run inside a nix build, we need to instead point PROTO_ROOT // to a sparseTree containing that structure. &[match std::env::var_os("PROTO_ROOT") { Some(proto_root) => proto_root.to_str().unwrap().to_owned(), None => "../..".to_string(), }], ) }