[FEATURE] hdds_build crate

[adriano-tumino]

Hello,
This is a fantastic project!
It would be great if we could have a dedicated hdds_build crate (or module) to compile IDL files directly within a project's build.rs script. This would eliminate the need to invoke external tools or CLI commands manually during the build process.

For reference, a similar pattern is implemented by prost-build.

P.S. Are you currently accepting contributions? I would be happy to help!

[hdds-team]

Thanks, glad you like it! And yes - prost-build is exactly the right reference. 🙌

Good news on feasibility: hddsgen already ships as a library crate (not just a CLI), exposing Parser and codegen::{Backend, CodeGenerator}. So an hdds_build helper is a thin, ergonomic wrapper over it: parse the .idl, generate for the chosen Backend, write into OUT_DIR, and emit cargo:rerun-if-changed for each input - the standard build.rs flow.

We're absolutely accepting contributions (CONTRIBUTING.md, DCO sign-off, Apache-2.0 OR MIT), and this would be a fantastic one to own if you're keen - I'll happily point you at the lib entry points and review as you go. Note it pairs naturally with a build-time IDL request on the CMake side (hdds#13), same underlying capability for two ecosystems.