use std::env; fn main() { if env::var("PROTO_CODE_GEN").unwrap_or("0".to_string()) != "1" { return; } tonic_build::configure() .build_server(true) .out_dir("src/servers") .compile_protos( &[ "proto/source.proto", "proto/sourcetransform.proto", "proto/map.proto", "proto/reduce.proto", "proto/sink.proto", "proto/sideinput.proto", ], &["proto"], ) .unwrap_or_else(|e| panic!("failed to compile the proto, {:?}", e)) }