macp-runtime 0.8.3

MACP reference runtime: a coordination kernel and gRPC server enforcing session boundaries, message validation, append-only history, modes, and governance policy.
Documentation 
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// Generates ONLY the tonic gRPC service stubs for `macp.v1`. The message types
// are generated once in the `macp-pb` crate; `.extern_path()` redirects every
// `.macp.v1` message reference in the service code to `::macp_pb::pb`, so they
// are not regenerated here. This keeps message types in a single transport-free
// crate while the service (which needs tonic) lives with the runtime.
fn main() -> Result<(), Box<dyn std::error::Error>> {
    let proto_dir =
        std::env::var("DEP_MACP_PROTO_PROTO_DIR").expect("macp-proto crate must set proto_dir");
    let out_dir = std::env::var("OUT_DIR").expect("cargo always sets OUT_DIR for build scripts");
    // Written unconditionally (it's a tiny file) so the `reflection` feature
    // can `include_bytes!` it without build.rs needing to know which
    // features are enabled. Only embedded into the binary when that feature
    // is on -- see src/main.rs.
    tonic_prost_build::configure()
        .build_server(true)
        .build_client(true)
        .extern_path(".macp.v1", "::macp_pb::pb")
        .file_descriptor_set_path(std::path::Path::new(&out_dir).join("macp_descriptor.bin"))
        .compile_protos(
            &[
                "macp/v1/envelope.proto",
                "macp/v1/core.proto",
                "macp/v1/policy.proto",
            ],
            &[&proto_dir],
        )?;
    Ok(())
}