feat(tvix/build): add BuildService trait r/7383

Also provide a dummy implementation that just fails on any build that's
requested.

Change-Id: I0df743a730c5331ec9ce6e97a966abe18ce067f5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10627
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI

1 files changed, 12 insertions, 0 deletions

diff --git a/tvix/build/src/buildservice/mod.rs b/tvix/build/src/buildservice/mod.rs
new file mode 100644
index 000000000000..cd0b7eb5d70f
--- /dev/null
+++ b/tvix/build/src/buildservice/mod.rs
@@ -0,0 +1,12 @@
+use tonic::async_trait;
+
+use crate::proto::{Build, BuildRequest};
+
+mod dummy;
+pub use dummy::DummyBuildService;
+
+#[async_trait]
+pub trait BuildService: Send + Sync {
+    /// TODO: document
+    async fn do_build(&self, request: BuildRequest) -> std::io::Result<Build>;
+}