tvl-depot/tvix/build/build.rs
Florian Klink 2414c87282 feat(tvix/build), add OciBuildService, the old way
This is just patchset 10 of CL10855, before the color_eyre changes,
rebased to the tvix_castore api.

Change-Id: If4b42412ff8568058908cda971ad7d6f2d9f9b7b

---
This provides a build service invoking runc. It can be used by using the
`oci://$path_to_some_tempdir` builder URL for now.

For now, it can be tested as such:

```
BUILD_SERVICE_ADDR=oci://$PWD/bundles target/debug/tvix
let pkgs = (import <nixpkgs> {}); in builtins.readDir pkgs.perl
```

readDir is to actually trigger IO into the store path (which triggers
the builds).

For now it fails due to missing reference scanning (see followup CLs).

Change-Id: I09b40e410114ce69966a41a0e3c33281b859e443
Reviewed-on: https://cl.tvl.fyi/c/depot/+/12526
Autosubmit: yuka <yuka@yuka.dev>
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
2024-10-01 13:41:24 +00:00

36 lines
1.2 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);
};
builder
.build_server(true)
.build_client(true)
.emit_rerun_if_changed(false)
.bytes(["."])
.extern_path(".tvix.castore.v1", "::tvix_castore::proto")
.compile(
&[
"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 custom tree containing that structure.
&[match std::env::var_os("PROTO_ROOT") {
Some(proto_root) => proto_root.to_str().unwrap().to_owned(),
None => "../..".to_string(),
}],
)?;
Ok(())
}