tvl-depot/tvix/build/build.rs
Florian Klink fd27d8ddc3 feat(tvix/build): init
This adds the tvix-build crate, currently only containing a
`tvix_build::proto` module, exposing the data structures defined in
tvix/build/protos.

Change-Id: I75f5d9196969ed0877b1fe640cacfecba0fb2e03
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10235
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
2023-12-11 21:43:38 +00:00

38 lines
1.3 KiB
Rust

use std::io::Result;
fn main() -> Result<()> {
#[allow(unused_mut)]
let mut builder = tonic_build::configure();
#[cfg(feature = "tonic-reflection")]
{
let out_dir = std::path::PathBuf::from(std::env::var("OUT_DIR").unwrap());
let descriptor_path = out_dir.join("tvix.build.v1.bin");
builder = builder.file_descriptor_set_path(descriptor_path);
};
// https://github.com/hyperium/tonic/issues/908
let mut config = prost_build::Config::new();
config.bytes(["."]);
config.extern_path(".tvix.castore.v1", "::tvix_castore::proto");
builder
.build_server(true)
.build_client(true)
.compile_with_config(
config,
&[
"tvix/build/protos/build.proto",
"tvix/build/protos/rpc_build.proto",
],
// If we are in running `cargo build` manually, using `../..` works fine,
// but in case we run inside a nix build, we need to instead point PROTO_ROOT
// to a sparseTree containing that structure.
&[match std::env::var_os("PROTO_ROOT") {
Some(proto_root) => proto_root.to_str().unwrap().to_owned(),
None => "../..".to_string(),
}],
)?;
Ok(())
}