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-rw-r--r--tvix/store/src/directoryservice/memory.rs56
-rw-r--r--tvix/store/src/directoryservice/mod.rs7
-rw-r--r--tvix/store/src/directoryservice/sled.rs64
-rw-r--r--tvix/store/src/import.rs2
-rw-r--r--tvix/store/src/nar/renderer.rs13
-rw-r--r--tvix/store/src/proto/grpc_directoryservice_wrapper.rs68
-rw-r--r--tvix/store/src/proto/mod.rs4
-rw-r--r--tvix/store/src/proto/tests/directory.rs4
-rw-r--r--tvix/store/src/proto/tests/grpc_directoryservice.rs20
-rw-r--r--tvix/store/src/tests/fixtures.rs8
-rw-r--r--tvix/store/src/tests/import.rs10
-rw-r--r--tvix/store/src/tests/nar_renderer.rs2
12 files changed, 128 insertions, 130 deletions
diff --git a/tvix/store/src/directoryservice/memory.rs b/tvix/store/src/directoryservice/memory.rs
index 87cd038888e6..7440be112cfd 100644
--- a/tvix/store/src/directoryservice/memory.rs
+++ b/tvix/store/src/directoryservice/memory.rs
@@ -8,46 +8,38 @@ use super::DirectoryService;
 
 #[derive(Clone, Default)]
 pub struct MemoryDirectoryService {
-    db: Arc<RwLock<HashMap<Vec<u8>, proto::Directory>>>,
+    db: Arc<RwLock<HashMap<[u8; 32], proto::Directory>>>,
 }
 
 impl DirectoryService for MemoryDirectoryService {
-    // TODO: change api to only be by digest
-    #[instrument(skip(self, by_what))]
-    fn get(
-        &self,
-        by_what: &proto::get_directory_request::ByWhat,
-    ) -> Result<Option<proto::Directory>, Error> {
-        match by_what {
-            proto::get_directory_request::ByWhat::Digest(digest) => {
-                let db = self.db.read()?;
-
-                match db.get(digest) {
-                    // The directory was not found, return
-                    None => Ok(None),
-
-                    // The directory was found, try to parse the data as Directory message
-                    Some(directory) => {
-                        // Validate the retrieved Directory indeed has the
-                        // digest we expect it to have, to detect corruptions.
-                        let actual_digest = directory.digest();
-                        if actual_digest.as_slice() != digest {
-                            return Err(Error::StorageError(format!(
-                                "requested directory with digest {}, but got {}",
-                                BASE64.encode(digest),
-                                BASE64.encode(&actual_digest)
-                            )));
-                        }
-
-                        Ok(Some(directory.clone()))
-                    }
+    #[instrument(skip(self, digest), fields(directory.digest = BASE64.encode(digest)))]
+    fn get(&self, digest: &[u8; 32]) -> Result<Option<proto::Directory>, Error> {
+        let db = self.db.read()?;
+
+        match db.get(digest) {
+            // The directory was not found, return
+            None => Ok(None),
+
+            // The directory was found, try to parse the data as Directory message
+            Some(directory) => {
+                // Validate the retrieved Directory indeed has the
+                // digest we expect it to have, to detect corruptions.
+                let actual_digest = directory.digest();
+                if actual_digest.as_slice() != digest {
+                    return Err(Error::StorageError(format!(
+                        "requested directory with digest {}, but got {}",
+                        BASE64.encode(digest),
+                        BASE64.encode(&actual_digest)
+                    )));
                 }
+
+                Ok(Some(directory.clone()))
             }
         }
     }
 
     #[instrument(skip(self, directory), fields(directory.digest = BASE64.encode(&directory.digest())))]
-    fn put(&self, directory: proto::Directory) -> Result<Vec<u8>, Error> {
+    fn put(&self, directory: proto::Directory) -> Result<[u8; 32], Error> {
         let digest = directory.digest();
 
         // validate the directory itself.
@@ -61,7 +53,7 @@ impl DirectoryService for MemoryDirectoryService {
 
         // store it
         let mut db = self.db.write()?;
-        db.insert(digest.clone(), directory);
+        db.insert(digest, directory);
 
         Ok(digest)
     }
diff --git a/tvix/store/src/directoryservice/mod.rs b/tvix/store/src/directoryservice/mod.rs
index 4abf823b23b4..a27f6745332a 100644
--- a/tvix/store/src/directoryservice/mod.rs
+++ b/tvix/store/src/directoryservice/mod.rs
@@ -11,11 +11,8 @@ pub use self::sled::SledDirectoryService;
 pub trait DirectoryService {
     /// Get looks up a single Directory message by its digest.
     /// In case the directory is not found, Ok(None) is returned.
-    fn get(
-        &self,
-        by_what: &proto::get_directory_request::ByWhat,
-    ) -> Result<Option<proto::Directory>, Error>;
+    fn get(&self, digest: &[u8; 32]) -> Result<Option<proto::Directory>, Error>;
     /// Get uploads a single Directory message, and returns the calculated
     /// digest, or an error.
-    fn put(&self, directory: proto::Directory) -> Result<Vec<u8>, Error>;
+    fn put(&self, directory: proto::Directory) -> Result<[u8; 32], Error>;
 }
diff --git a/tvix/store/src/directoryservice/sled.rs b/tvix/store/src/directoryservice/sled.rs
index 064f86ceaa6e..1f729a594c19 100644
--- a/tvix/store/src/directoryservice/sled.rs
+++ b/tvix/store/src/directoryservice/sled.rs
@@ -29,48 +29,40 @@ impl SledDirectoryService {
 }
 
 impl DirectoryService for SledDirectoryService {
-    // TODO: change api to only be by digest
-    #[instrument(name = "SledDirectoryService::get", skip(self, by_what))]
-    fn get(
-        &self,
-        by_what: &proto::get_directory_request::ByWhat,
-    ) -> Result<Option<proto::Directory>, Error> {
-        match by_what {
-            proto::get_directory_request::ByWhat::Digest(digest) => {
-                match self.db.get(digest) {
-                    // The directory was not found, return
-                    Ok(None) => Ok(None),
+    #[instrument(name = "SledDirectoryService::get", skip(self, digest), fields(directory.digest = BASE64.encode(digest)))]
+    fn get(&self, digest: &[u8; 32]) -> Result<Option<proto::Directory>, Error> {
+        match self.db.get(digest) {
+            // The directory was not found, return
+            Ok(None) => Ok(None),
 
-                    // The directory was found, try to parse the data as Directory message
-                    Ok(Some(data)) => match Directory::decode(&*data) {
-                        Ok(directory) => {
-                            // Validate the retrieved Directory indeed has the
-                            // digest we expect it to have, to detect corruptions.
-                            let actual_digest = directory.digest();
-                            if actual_digest.as_slice() != digest {
-                                return Err(Error::StorageError(format!(
-                                    "requested directory with digest {}, but got {}",
-                                    BASE64.encode(digest),
-                                    BASE64.encode(&actual_digest)
-                                )));
-                            }
+            // The directory was found, try to parse the data as Directory message
+            Ok(Some(data)) => match Directory::decode(&*data) {
+                Ok(directory) => {
+                    // Validate the retrieved Directory indeed has the
+                    // digest we expect it to have, to detect corruptions.
+                    let actual_digest = directory.digest();
+                    if actual_digest.as_slice() != digest {
+                        return Err(Error::StorageError(format!(
+                            "requested directory with digest {}, but got {}",
+                            BASE64.encode(digest),
+                            BASE64.encode(&actual_digest)
+                        )));
+                    }
 
-                            Ok(Some(directory))
-                        }
-                        Err(e) => {
-                            warn!("unable to parse directory {}: {}", BASE64.encode(digest), e);
-                            Err(Error::StorageError(e.to_string()))
-                        }
-                    },
-                    // some storage error?
-                    Err(e) => Err(Error::StorageError(e.to_string())),
+                    Ok(Some(directory))
                 }
-            }
+                Err(e) => {
+                    warn!("unable to parse directory {}: {}", BASE64.encode(digest), e);
+                    Err(Error::StorageError(e.to_string()))
+                }
+            },
+            // some storage error?
+            Err(e) => Err(Error::StorageError(e.to_string())),
         }
     }
 
     #[instrument(name = "SledDirectoryService::put", skip(self, directory), fields(directory.digest = BASE64.encode(&directory.digest())))]
-    fn put(&self, directory: proto::Directory) -> Result<Vec<u8>, Error> {
+    fn put(&self, directory: proto::Directory) -> Result<[u8; 32], Error> {
         let digest = directory.digest();
 
         // validate the directory itself.
@@ -82,7 +74,7 @@ impl DirectoryService for SledDirectoryService {
             )));
         }
         // store it
-        let result = self.db.insert(&digest, directory.encode_to_vec());
+        let result = self.db.insert(digest, directory.encode_to_vec());
         if let Err(e) = result {
             return Err(Error::StorageError(e.to_string()));
         }
diff --git a/tvix/store/src/import.rs b/tvix/store/src/import.rs
index 1e12bd36e460..6aee2af98f82 100644
--- a/tvix/store/src/import.rs
+++ b/tvix/store/src/import.rs
@@ -85,7 +85,7 @@ fn process_entry<BS: BlobService, CS: ChunkService + std::marker::Sync, DS: Dire
                 .to_str()
                 .map(|s| Ok(s.to_owned()))
                 .unwrap_or(Err(Error::InvalidEncoding(entry.path().to_path_buf())))?,
-            digest: directory_digest,
+            digest: directory_digest.to_vec(),
             size: directory_size,
         }));
     }
diff --git a/tvix/store/src/nar/renderer.rs b/tvix/store/src/nar/renderer.rs
index 94a392d36171..f0708ab739a5 100644
--- a/tvix/store/src/nar/renderer.rs
+++ b/tvix/store/src/nar/renderer.rs
@@ -103,20 +103,23 @@ impl<BS: BlobService, CS: ChunkService + Clone, DS: DirectoryService> NARRendere
             }
             proto::node::Node::Directory(proto_directory_node) => {
                 // get the digest we're referring to
-                let digest = proto_directory_node.digest;
+                let digest: [u8; 32] = proto_directory_node.digest.try_into().map_err(|_e| {
+                    RenderError::StoreError(crate::Error::StorageError(
+                        "invalid digest len in directory node".to_string(),
+                    ))
+                })?;
+
                 // look it up with the directory service
                 let resp = self
                     .directory_service
-                    .get(&proto::get_directory_request::ByWhat::Digest(
-                        digest.to_vec(),
-                    ))
+                    .get(&digest)
                     .map_err(RenderError::StoreError)?;
 
                 match resp {
                     // if it's None, that's an error!
                     None => {
                         return Err(RenderError::DirectoryNotFound(
-                            digest,
+                            digest.to_vec(),
                             proto_directory_node.name,
                         ))
                     }
diff --git a/tvix/store/src/proto/grpc_directoryservice_wrapper.rs b/tvix/store/src/proto/grpc_directoryservice_wrapper.rs
index 049b1571c23f..e73dfdab1866 100644
--- a/tvix/store/src/proto/grpc_directoryservice_wrapper.rs
+++ b/tvix/store/src/proto/grpc_directoryservice_wrapper.rs
@@ -34,31 +34,33 @@ impl<DS: DirectoryService + Send + Sync + Clone + 'static>
 
         let req_inner = request.into_inner();
 
-        let client = self.directory_service.clone();
+        let directory_service = self.directory_service.clone();
 
         // kick off an async thread
         task::spawn(async move {
             // Keep the list of directory digests to traverse.
             // As per rpc_directory.proto, we traverse in BFS order.
-            let mut deq: VecDeque<Vec<u8>> = VecDeque::new();
+            let mut deq: VecDeque<[u8; 32]> = VecDeque::new();
 
             // look at the digest in the request and put it in the top of the queue.
             match &req_inner.by_what {
                 None => return Err(Status::invalid_argument("by_what needs to be specified")),
                 Some(proto::get_directory_request::ByWhat::Digest(digest)) => {
-                    if digest.len() != 32 {
-                        return Err(Status::invalid_argument("invalid digest length"));
-                    }
-                    deq.push_back(digest.clone());
+                    deq.push_back(
+                        digest
+                            .as_slice()
+                            .try_into()
+                            .map_err(|_e| Status::invalid_argument("invalid digest length"))?,
+                    );
                 }
             }
 
             // keep a list of all the Directory messages already sent, so we can omit sending the same.
-            let mut sent_directory_dgsts: HashSet<Vec<u8>> = HashSet::new();
+            let mut sent_directory_dgsts: HashSet<[u8; 32]> = HashSet::new();
 
             // look up the directory at the top of the queue
-            while let Some(ref digest) = deq.pop_front() {
-                let digest_b64: String = BASE64.encode(digest);
+            while let Some(digest) = deq.pop_front() {
+                let digest_b64: String = BASE64.encode(&digest);
 
                 // add digest we're currently processing to a span, but pay attention to
                 // https://docs.rs/tracing/0.1.37/tracing/span/struct.Span.html#in-asynchronous-code
@@ -69,9 +71,7 @@ impl<DS: DirectoryService + Send + Sync + Clone + 'static>
                     let _enter = span.enter();
 
                     // invoke client.get, and map to a Result<Directory, Status>
-                    match client.get(&proto::get_directory_request::ByWhat::Digest(
-                        digest.to_vec(),
-                    )) {
+                    match directory_service.get(&digest) {
                         // The directory was not found, abort
                         Ok(None) => {
                             if !sent_directory_dgsts.is_empty() {
@@ -94,10 +94,19 @@ impl<DS: DirectoryService + Send + Sync + Clone + 'static>
                             // Same applies to when it already is in the queue.
                             if req_inner.recursive {
                                 for child_directory_node in &directory.directories {
-                                    if !sent_directory_dgsts.contains(&child_directory_node.digest)
-                                        && !deq.contains(&child_directory_node.digest)
+                                    let child_directory_node_digest: [u8; 32] =
+                                        child_directory_node.digest.clone().try_into().map_err(
+                                            |_e| {
+                                                Status::internal(
+                                                    "invalid child directory digest len",
+                                                )
+                                            },
+                                        )?;
+
+                                    if !sent_directory_dgsts.contains(&child_directory_node_digest)
+                                        && !deq.contains(&child_directory_node_digest)
                                     {
-                                        deq.push_back(child_directory_node.digest.clone());
+                                        deq.push_back(child_directory_node_digest);
                                     }
                                 }
                             }
@@ -106,7 +115,7 @@ impl<DS: DirectoryService + Send + Sync + Clone + 'static>
                             // Strictly speaking, it wasn't sent yet, but tx.send happens right after,
                             // and the only way we can still fail is by the remote side to hang up,
                             // in which case we stop anyways.
-                            sent_directory_dgsts.insert(digest.to_vec());
+                            sent_directory_dgsts.insert(digest);
 
                             Ok(directory)
                         }
@@ -143,8 +152,8 @@ impl<DS: DirectoryService + Send + Sync + Clone + 'static>
         // This keeps track of the seen directory keys, and their size.
         // This is used to validate the size field of a reference to a previously sent directory.
         // We don't need to keep the contents around, they're stored in the DB.
-        let mut seen_directories_sizes: HashMap<Vec<u8>, u32> = HashMap::new();
-        let mut last_directory_dgst: Option<Vec<u8>> = None;
+        let mut seen_directories_sizes: HashMap<[u8; 32], u32> = HashMap::new();
+        let mut last_directory_dgst: Option<[u8; 32]> = None;
 
         // Consume directories, and insert them into the store.
         // Reject directory messages that refer to Directories not sent in the same stream.
@@ -162,12 +171,18 @@ impl<DS: DirectoryService + Send + Sync + Clone + 'static>
             // to ensure it has been seen already in this stream, and that the size
             // matches what we recorded.
             for child_directory in &directory.directories {
-                match seen_directories_sizes.get(&child_directory.digest) {
+                let child_directory_digest: [u8; 32] = child_directory
+                    .digest
+                    .clone()
+                    .try_into()
+                    .map_err(|_e| Status::internal("invalid child directory digest len"))?;
+
+                match seen_directories_sizes.get(&child_directory_digest) {
                     None => {
                         return Err(Status::invalid_argument(format!(
                             "child directory '{}' ({}) in directory '{}' not seen yet",
                             child_directory.name,
-                            BASE64.encode(&child_directory.digest),
+                            BASE64.encode(&child_directory_digest),
                             BASE64.encode(&directory.digest()),
                         )));
                     }
@@ -176,7 +191,7 @@ impl<DS: DirectoryService + Send + Sync + Clone + 'static>
                             return Err(Status::invalid_argument(format!(
                                     "child directory '{}' ({}) in directory '{}' referred with wrong size, expected {}, actual {}",
                                     child_directory.name,
-                                    BASE64.encode(&child_directory.digest),
+                                    BASE64.encode(&child_directory_digest),
                                     BASE64.encode(&directory.digest()),
                                     seen_child_directory_size,
                                     child_directory.size,
@@ -197,15 +212,12 @@ impl<DS: DirectoryService + Send + Sync + Clone + 'static>
             // does a reachability check.
 
             let dgst = directory.digest();
-            seen_directories_sizes.insert(dgst.clone(), directory.size());
-            last_directory_dgst = Some(dgst.clone());
+            seen_directories_sizes.insert(dgst, directory.size());
+            last_directory_dgst = Some(dgst);
 
             // check if the directory already exists in the database. We can skip
             // inserting if it's already there, as that'd be a no-op.
-            match self
-                .directory_service
-                .get(&proto::get_directory_request::ByWhat::Digest(dgst.to_vec()))
-            {
+            match self.directory_service.get(&dgst) {
                 Err(e) => {
                     warn!("error checking if directory already exists: {}", e);
                     return Err(e.into());
@@ -224,7 +236,7 @@ impl<DS: DirectoryService + Send + Sync + Clone + 'static>
         match last_directory_dgst {
             None => Err(Status::invalid_argument("no directories received")),
             Some(last_directory_dgst) => Ok(Response::new(proto::PutDirectoryResponse {
-                root_digest: last_directory_dgst,
+                root_digest: last_directory_dgst.to_vec(),
             })),
         }
     }
diff --git a/tvix/store/src/proto/mod.rs b/tvix/store/src/proto/mod.rs
index fceb6b5902df..f5945d650ad8 100644
--- a/tvix/store/src/proto/mod.rs
+++ b/tvix/store/src/proto/mod.rs
@@ -236,10 +236,10 @@ impl Directory {
 
     /// Calculates the digest of a Directory, which is the blake3 hash of a
     /// Directory protobuf message, serialized in protobuf canonical form.
-    pub fn digest(&self) -> Vec<u8> {
+    pub fn digest(&self) -> [u8; 32] {
         let mut hasher = blake3::Hasher::new();
 
-        hasher.update(&self.encode_to_vec()).finalize().as_bytes()[..].to_vec()
+        *hasher.update(&self.encode_to_vec()).finalize().as_bytes()
     }
 
     /// validate checks the directory for invalid data, such as:
diff --git a/tvix/store/src/proto/tests/directory.rs b/tvix/store/src/proto/tests/directory.rs
index 890cb2164ad5..03572629e606 100644
--- a/tvix/store/src/proto/tests/directory.rs
+++ b/tvix/store/src/proto/tests/directory.rs
@@ -2,7 +2,7 @@ use crate::proto::{Directory, DirectoryNode, FileNode, SymlinkNode, ValidateDire
 use lazy_static::lazy_static;
 
 lazy_static! {
-    static ref DUMMY_DIGEST: Vec<u8> = vec![
+    static ref DUMMY_DIGEST: [u8; 32] = [
         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
         0x00, 0x00,
@@ -66,7 +66,7 @@ fn digest() {
 
     assert_eq!(
         d.digest(),
-        vec![
+        [
             0xaf, 0x13, 0x49, 0xb9, 0xf5, 0xf9, 0xa1, 0xa6, 0xa0, 0x40, 0x4d, 0xea, 0x36, 0xdc,
             0xc9, 0x49, 0x9b, 0xcb, 0x25, 0xc9, 0xad, 0xc1, 0x12, 0xb7, 0xcc, 0x9a, 0x93, 0xca,
             0xe4, 0x1f, 0x32, 0x62
diff --git a/tvix/store/src/proto/tests/grpc_directoryservice.rs b/tvix/store/src/proto/tests/grpc_directoryservice.rs
index 464c25f33d75..37428fbfa339 100644
--- a/tvix/store/src/proto/tests/grpc_directoryservice.rs
+++ b/tvix/store/src/proto/tests/grpc_directoryservice.rs
@@ -44,7 +44,7 @@ async fn not_found() {
 
     let resp = service
         .get(tonic::Request::new(GetDirectoryRequest {
-            by_what: Some(ByWhat::Digest(DIRECTORY_A.digest())),
+            by_what: Some(ByWhat::Digest(DIRECTORY_A.digest().to_vec())),
             ..Default::default()
         }))
         .await;
@@ -114,14 +114,17 @@ async fn put_get_multiple() {
         .await
         .expect("must succeed");
 
-    assert_eq!(DIRECTORY_B.digest(), put_resp.into_inner().root_digest);
+    assert_eq!(
+        DIRECTORY_B.digest().to_vec(),
+        put_resp.into_inner().root_digest
+    );
 
     // now, request b, first in non-recursive mode.
     let items = get_directories(
         &service,
         GetDirectoryRequest {
             recursive: false,
-            by_what: Some(ByWhat::Digest(DIRECTORY_B.digest())),
+            by_what: Some(ByWhat::Digest(DIRECTORY_B.digest().to_vec())),
         },
     )
     .await
@@ -135,7 +138,7 @@ async fn put_get_multiple() {
         &service,
         GetDirectoryRequest {
             recursive: true,
-            by_what: Some(ByWhat::Digest(DIRECTORY_B.digest())),
+            by_what: Some(ByWhat::Digest(DIRECTORY_B.digest().to_vec())),
         },
     )
     .await
@@ -161,14 +164,17 @@ async fn put_get_dedup() {
         .await
         .expect("must succeed");
 
-    assert_eq!(DIRECTORY_C.digest(), put_resp.into_inner().root_digest);
+    assert_eq!(
+        DIRECTORY_C.digest().to_vec(),
+        put_resp.into_inner().root_digest
+    );
 
     // Ask for "C" recursively. We expect to only get "A" once, as there's no point sending it twice.
     let items = get_directories(
         &service,
         GetDirectoryRequest {
             recursive: true,
-            by_what: Some(ByWhat::Digest(DIRECTORY_C.digest())),
+            by_what: Some(ByWhat::Digest(DIRECTORY_C.digest().to_vec())),
         },
     )
     .await
@@ -211,7 +217,7 @@ async fn put_reject_wrong_size() {
     let broken_parent_directory = Directory {
         directories: vec![DirectoryNode {
             name: "foo".to_string(),
-            digest: DIRECTORY_A.digest(),
+            digest: DIRECTORY_A.digest().to_vec(),
             size: 42,
         }],
         ..Default::default()
diff --git a/tvix/store/src/tests/fixtures.rs b/tvix/store/src/tests/fixtures.rs
index 10ce7f3dc4e2..6d38dd45729d 100644
--- a/tvix/store/src/tests/fixtures.rs
+++ b/tvix/store/src/tests/fixtures.rs
@@ -39,7 +39,7 @@ lazy_static! {
     pub static ref DIRECTORY_COMPLICATED: proto::Directory = proto::Directory {
         directories: vec![DirectoryNode {
             name: "keep".to_string(),
-            digest: DIRECTORY_WITH_KEEP.digest(),
+            digest: DIRECTORY_WITH_KEEP.digest().to_vec(),
             size: DIRECTORY_WITH_KEEP.size(),
         }],
         files: vec![FileNode {
@@ -57,7 +57,7 @@ lazy_static! {
     pub static ref DIRECTORY_B: Directory = Directory {
         directories: vec![DirectoryNode {
             name: "a".to_string(),
-            digest: DIRECTORY_A.digest(),
+            digest: DIRECTORY_A.digest().to_vec(),
             size: DIRECTORY_A.size(),
         }],
         ..Default::default()
@@ -66,12 +66,12 @@ lazy_static! {
         directories: vec![
             DirectoryNode {
                 name: "a".to_string(),
-                digest: DIRECTORY_A.digest(),
+                digest: DIRECTORY_A.digest().to_vec(),
                 size: DIRECTORY_A.size(),
             },
             DirectoryNode {
                 name: "a'".to_string(),
-                digest: DIRECTORY_A.digest(),
+                digest: DIRECTORY_A.digest().to_vec(),
                 size: DIRECTORY_A.size(),
             }
         ],
diff --git a/tvix/store/src/tests/import.rs b/tvix/store/src/tests/import.rs
index 63ca1efa13f3..3a48df9e33c8 100644
--- a/tvix/store/src/tests/import.rs
+++ b/tvix/store/src/tests/import.rs
@@ -106,7 +106,7 @@ fn complicated() {
                 .unwrap()
                 .to_string_lossy()
                 .to_string(),
-            digest: DIRECTORY_COMPLICATED.digest(),
+            digest: DIRECTORY_COMPLICATED.digest().to_vec(),
             size: DIRECTORY_COMPLICATED.size(),
         }),
         root_node,
@@ -114,15 +114,11 @@ fn complicated() {
 
     // ensure DIRECTORY_WITH_KEEP and DIRECTORY_COMPLICATED have been uploaded
     assert!(directory_service
-        .get(&proto::get_directory_request::ByWhat::Digest(
-            DIRECTORY_WITH_KEEP.digest()
-        ))
+        .get(&DIRECTORY_WITH_KEEP.digest())
         .unwrap()
         .is_some());
     assert!(directory_service
-        .get(&proto::get_directory_request::ByWhat::Digest(
-            DIRECTORY_COMPLICATED.digest()
-        ))
+        .get(&DIRECTORY_COMPLICATED.digest())
         .unwrap()
         .is_some());
 
diff --git a/tvix/store/src/tests/nar_renderer.rs b/tvix/store/src/tests/nar_renderer.rs
index 2b5b4f705c64..056cfaf5fb11 100644
--- a/tvix/store/src/tests/nar_renderer.rs
+++ b/tvix/store/src/tests/nar_renderer.rs
@@ -198,7 +198,7 @@ fn test_complicated() {
             &mut buf,
             crate::proto::node::Node::Directory(DirectoryNode {
                 name: "doesntmatter".to_string(),
-                digest: DIRECTORY_COMPLICATED.digest(),
+                digest: DIRECTORY_COMPLICATED.digest().to_vec(),
                 size: DIRECTORY_COMPLICATED.size(),
             }),
         )