autonomous_proto 0.1.1

autonomous_proto using protoc 3.21.5
Documentation 
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fn main() {
    let proto_include = "../proto";
    if !std::path::Path::new(proto_include).exists() {
        println!("cargo:warning=Not found '{}', skipping proto generation", proto_include);
        return;
    }
    let proto_files : Vec<String> = std::fs::read_dir(proto_include).unwrap().filter_map(|entry| {
        let path = entry.unwrap().path();
        if path.extension()? == "proto" {
            Some(path.to_string_lossy().into_owned())
        } else {
            None
        }
    }).collect();
    let proto_refs: Vec<&str> = proto_files.iter().map(|s| s.as_str()).collect();
    let out_dir = std::path::PathBuf::from("generated");
    std::fs::create_dir_all(&out_dir).unwrap();
    prost_build::Config::new()
        .out_dir(&out_dir)
        .compile_protos(&proto_refs, &[proto_include])
        .expect("Failed to compile .proto files");
    for proto in &proto_files {
        println!("cargo:rerun-if-changed={}", proto);
    }
}