build.rs

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let pkg_version = if let Ok(date) = std::env::var("DATE") {
        format!("{}.{}", env!("CARGO_PKG_VERSION"), date)
    } else {
        env!("CARGO_PKG_VERSION").to_string()
    };

    println!("cargo:rustc-env=CARGO_PKG_VERSION={}", pkg_version);

    let version = versionisator::Version::new(
        env!("CARGO_MANIFEST_DIR"),
        env!("CARGO_PKG_NAME").to_string(),
        pkg_version,
    );

    println!("cargo:rustc-env=FULL_VERSION={}", version.full());
    println!("cargo:rustc-env=SIMPLE_VERSION={}", version.simple());
    println!("cargo:rustc-env=SOURCE_VERSION={}", version.hash());

    build_protobuf()?;
    Ok(())
}

fn build_protobuf() -> Result<(), Box<dyn std::error::Error>> {
    const PROTO_PATH: &str = "./proto";
    tonic_build::configure()
        .build_server(true)
        .build_client(true)
        .type_attribute(".", "#[derive(serde::Deserialize, serde::Serialize)]")
        .compile(
            &["proto/taskqueue.proto", "proto/grpc.health.proto"],
            &["proto/"],
        )?;

    println!(
        "cargo:rerun-if-changed={}",
        format!("{}/{}", PROTO_PATH, "taskqueue.proto")
    );

    Ok(())
}