feat(tvix/store): initial dummy implementation r/5554

This replaces the hello world example from tvix-store with an actual
gRPC endpoint, implementing all of BlobService, DirectoryService and
PathInfoService.

All RPC methods currently respond with the unimplemented gRPC status.

Co-Authored-By: Márton Boros <martonboros@gmail.com>
Change-Id: Ieba333cca44dc1e3f2ffbe676ba7a99e672b9bfb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7664
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI

1 files changed, 26 insertions, 0 deletions

diff --git a/tvix/store/src/dummy_path_info_service.rs b/tvix/store/src/dummy_path_info_service.rs
new file mode 100644
index 000000000000..3bc99ad334d9
--- /dev/null
+++ b/tvix/store/src/dummy_path_info_service.rs
@@ -0,0 +1,26 @@
+use crate::proto::path_info_service_server::PathInfoService;
+use crate::proto::CalculateNarResponse;
+use crate::proto::GetPathInfoRequest;
+use crate::proto::Node;
+use crate::proto::PathInfo;
+use tonic::{Request, Response, Result, Status};
+
+pub struct DummyPathInfoService {}
+
+#[tonic::async_trait]
+impl PathInfoService for DummyPathInfoService {
+    async fn get(&self, _request: Request<GetPathInfoRequest>) -> Result<Response<PathInfo>> {
+        Err(Status::unimplemented("not implemented"))
+    }
+
+    async fn put(&self, _request: Request<PathInfo>) -> Result<Response<PathInfo>> {
+        Err(Status::unimplemented("not implemented"))
+    }
+
+    async fn calculate_nar(
+        &self,
+        _request: Request<Node>,
+    ) -> Result<Response<CalculateNarResponse>> {
+        Err(Status::unimplemented("not implemented"))
+    }
+}