feat(tvix/castore): add RedbDirectoryService r/8437

This provides a DirectoryService implementation which uses
redb (https://github.com/cberner/redb) as the database. It provides both
in-memory and persistent on-filesystem implementations.

Change-Id: Id8f7c812e2cf401cccd1c382b19907b17a6887bc
Reviewed-on: https://cl.tvl.fyi/c/depot/+/12038
Tested-by: BuildkiteCI
Autosubmit: Ilan Joselevich <personal@ilanjoselevich.com>
Reviewed-by: flokli <flokli@flokli.de>

1 files changed, 3 insertions, 0 deletions

diff --git a/tvix/castore/src/directoryservice/mod.rs b/tvix/castore/src/directoryservice/mod.rs
index ffd9ea3636ec..17a78b179349 100644
--- a/tvix/castore/src/directoryservice/mod.rs
+++ b/tvix/castore/src/directoryservice/mod.rs
@@ -10,6 +10,7 @@ mod grpc;
 mod memory;
 mod object_store;
 mod order_validator;
+mod redb;
 mod simple_putter;
 mod sled;
 #[cfg(test)]
@@ -24,6 +25,7 @@ pub use self::grpc::{GRPCDirectoryService, GRPCDirectoryServiceConfig};
 pub use self::memory::{MemoryDirectoryService, MemoryDirectoryServiceConfig};
 pub use self::object_store::{ObjectStoreDirectoryService, ObjectStoreDirectoryServiceConfig};
 pub use self::order_validator::{LeavesToRootValidator, OrderValidator, RootToLeavesValidator};
+pub use self::redb::{RedbDirectoryService, RedbDirectoryServiceConfig};
 pub use self::simple_putter::SimplePutter;
 pub use self::sled::{SledDirectoryService, SledDirectoryServiceConfig};
 pub use self::traverse::descend_to;
@@ -137,6 +139,7 @@ pub(crate) fn register_directory_services(reg: &mut Registry) {
     reg.register::<Box<dyn ServiceBuilder<Output = dyn DirectoryService>>, super::directoryservice::CacheConfig>("cache");
     reg.register::<Box<dyn ServiceBuilder<Output = dyn DirectoryService>>, super::directoryservice::GRPCDirectoryServiceConfig>("grpc");
     reg.register::<Box<dyn ServiceBuilder<Output = dyn DirectoryService>>, super::directoryservice::SledDirectoryServiceConfig>("sled");
+    reg.register::<Box<dyn ServiceBuilder<Output = dyn DirectoryService>>, super::directoryservice::RedbDirectoryServiceConfig>("redb");
     #[cfg(feature = "cloud")]
     {
         reg.register::<Box<dyn ServiceBuilder<Output = dyn DirectoryService>>, super::directoryservice::BigtableParameters>("bigtable");