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-rw-r--r--tvix/glue/src/builtins/derivation.rs10
-rw-r--r--tvix/glue/src/builtins/import.rs11
-rw-r--r--tvix/glue/src/fetchers/mod.rs37
-rw-r--r--tvix/glue/src/tvix_build.rs40
-rw-r--r--tvix/glue/src/tvix_store_io.rs103
5 files changed, 99 insertions, 102 deletions
diff --git a/tvix/glue/src/builtins/derivation.rs b/tvix/glue/src/builtins/derivation.rs
index 27ae2e1d6925..a79545437a67 100644
--- a/tvix/glue/src/builtins/derivation.rs
+++ b/tvix/glue/src/builtins/derivation.rs
@@ -577,10 +577,7 @@ pub(crate) mod derivation_builtins {
                     })
                     .map_err(DerivationError::InvalidDerivation)?;
 
-            let root_node = Node::File(
-                FileNode::new(store_path.to_string().into(), blob_digest, blob_size, false)
-                    .map_err(|e| ErrorKind::TvixError(Rc::new(e)))?,
-            );
+            let root_node = Node::File(FileNode::new(blob_digest, blob_size, false));
 
             // calculate the nar hash
             let (nar_size, nar_sha256) = state
@@ -600,7 +597,10 @@ pub(crate) mod derivation_builtins {
             state
                 .path_info_service
                 .put(PathInfo {
-                    node: Some((&root_node).into()),
+                    node: Some(tvix_castore::proto::Node::from_name_and_node(
+                        store_path.to_string().into(),
+                        root_node,
+                    )),
                     references: reference_paths
                         .iter()
                         .map(|x| bytes::Bytes::copy_from_slice(x.digest()))
diff --git a/tvix/glue/src/builtins/import.rs b/tvix/glue/src/builtins/import.rs
index 1cf4145427b8..a09dc5a06b35 100644
--- a/tvix/glue/src/builtins/import.rs
+++ b/tvix/glue/src/builtins/import.rs
@@ -213,16 +213,7 @@ mod import_builtins {
                     .tokio_handle
                     .block_on(async { blob_writer.close().await })?;
 
-                let root_node = Node::File(
-                    FileNode::new(
-                        // The name gets set further down, while constructing the PathInfo.
-                        "".into(),
-                        blob_digest,
-                        blob_size,
-                        false,
-                    )
-                    .map_err(|e| tvix_eval::ErrorKind::TvixError(Rc::new(e)))?,
-                );
+                let root_node = Node::File(FileNode::new(blob_digest, blob_size, false));
 
                 let ca_hash = if recursive_ingestion {
                     let (_nar_size, nar_sha256) = state
diff --git a/tvix/glue/src/fetchers/mod.rs b/tvix/glue/src/fetchers/mod.rs
index 88d6da9f1e3c..46db5d093009 100644
--- a/tvix/glue/src/fetchers/mod.rs
+++ b/tvix/glue/src/fetchers/mod.rs
@@ -10,9 +10,7 @@ use tokio::io::{AsyncBufRead, AsyncRead, AsyncWrite, AsyncWriteExt, BufReader};
 use tokio_util::io::{InspectReader, InspectWriter};
 use tracing::{instrument, warn, Span};
 use tracing_indicatif::span_ext::IndicatifSpanExt;
-use tvix_castore::{
-    blobservice::BlobService, directoryservice::DirectoryService, FileNode, Node, ValidateNodeError,
-};
+use tvix_castore::{blobservice::BlobService, directoryservice::DirectoryService, FileNode, Node};
 use tvix_store::{nar::NarCalculationService, pathinfoservice::PathInfoService, proto::PathInfo};
 use url::Url;
 
@@ -329,10 +327,7 @@ where
 
                 // Construct and return the FileNode describing the downloaded contents.
                 Ok((
-                    Node::File(
-                        FileNode::new(vec![].into(), blob_writer.close().await?, blob_size, false)
-                            .map_err(|e| FetcherError::Io(std::io::Error::other(e.to_string())))?,
-                    ),
+                    Node::File(FileNode::new(blob_writer.close().await?, blob_size, false)),
                     CAHash::Flat(actual_hash),
                     blob_size,
                 ))
@@ -527,13 +522,7 @@ where
 
                 // Construct and return the FileNode describing the downloaded contents,
                 // make it executable.
-                let root_node = Node::File(
-                    FileNode::new(vec![].into(), blob_digest, file_size, true).map_err(
-                        |e: ValidateNodeError| {
-                            FetcherError::Io(std::io::Error::other(e.to_string()))
-                        },
-                    )?,
-                );
+                let root_node = Node::File(FileNode::new(blob_digest, file_size, true));
 
                 Ok((root_node, CAHash::Nar(actual_hash), file_size))
             }
@@ -557,9 +546,6 @@ where
         // Calculate the store path to return, by calculating from ca_hash.
         let store_path = build_ca_path(name, &ca_hash, Vec::<String>::new(), false)?;
 
-        // Rename the node name to match the Store Path.
-        let node = node.rename(store_path.to_string().into());
-
         // If the resulting hash is not a CAHash::Nar, we also need to invoke
         // `calculate_nar` to calculate this representation, as it's required in
         // the [PathInfo].
@@ -577,7 +563,10 @@ where
 
         // Construct the PathInfo and persist it.
         let path_info = PathInfo {
-            node: Some((&node).into()),
+            node: Some(tvix_castore::proto::Node::from_name_and_node(
+                store_path.to_string().into(),
+                node.clone(),
+            )),
             references: vec![],
             narinfo: Some(tvix_store::proto::NarInfo {
                 nar_size,
@@ -589,20 +578,12 @@ where
             }),
         };
 
-        let path_info = self
-            .path_info_service
+        self.path_info_service
             .put(path_info)
             .await
             .map_err(|e| FetcherError::Io(e.into()))?;
 
-        Ok((
-            store_path,
-            (&path_info.node.unwrap().node.unwrap())
-                .try_into()
-                .map_err(|e: ValidateNodeError| {
-                    FetcherError::Io(std::io::Error::other(e.to_string()))
-                })?,
-        ))
+        Ok((store_path, node))
     }
 }
 
diff --git a/tvix/glue/src/tvix_build.rs b/tvix/glue/src/tvix_build.rs
index 7fff0b9cf337..77fa5d92a197 100644
--- a/tvix/glue/src/tvix_build.rs
+++ b/tvix/glue/src/tvix_build.rs
@@ -1,7 +1,7 @@
 //! This module contains glue code translating from
 //! [nix_compat::derivation::Derivation] to [tvix_build::proto::BuildRequest].
 
-use std::collections::{BTreeMap, BTreeSet};
+use std::collections::BTreeMap;
 
 use bytes::Bytes;
 use nix_compat::{derivation::Derivation, nixbase32};
@@ -39,7 +39,7 @@ const NIX_ENVIRONMENT_VARS: [(&str, &str); 12] = [
 #[allow(clippy::mutable_key_type)]
 pub(crate) fn derivation_to_build_request(
     derivation: &Derivation,
-    inputs: BTreeSet<Node>,
+    inputs: BTreeMap<bytes::Bytes, Node>,
 ) -> std::io::Result<BuildRequest> {
     debug_assert!(derivation.validate(true).is_ok(), "drv must validate");
 
@@ -109,7 +109,10 @@ pub(crate) fn derivation_to_build_request(
             .into_iter()
             .map(|(key, value)| EnvVar { key, value })
             .collect(),
-        inputs: inputs.iter().map(Into::into).collect(),
+        inputs: inputs
+            .into_iter()
+            .map(|(name, node)| tvix_castore::proto::Node::from_name_and_node(name, node))
+            .collect(),
         inputs_dir: nix_compat::store_path::STORE_DIR[1..].into(),
         constraints,
         working_dir: "build".into(),
@@ -189,10 +192,9 @@ fn calculate_pass_as_file_env(k: &str) -> (String, String) {
 
 #[cfg(test)]
 mod test {
-    use std::collections::BTreeSet;
-
     use bytes::Bytes;
     use nix_compat::derivation::Derivation;
+    use std::collections::BTreeMap;
     use tvix_build::proto::{
         build_request::{AdditionalFile, BuildConstraints, EnvVar},
         BuildRequest,
@@ -206,14 +208,9 @@ mod test {
     use lazy_static::lazy_static;
 
     lazy_static! {
-        static ref INPUT_NODE_FOO: Node = Node::Directory(
-            DirectoryNode::new(
-                Bytes::from("mp57d33657rf34lzvlbpfa1gjfv5gmpg-bar"),
-                DUMMY_DIGEST.clone(),
-                42,
-            )
-            .unwrap()
-        );
+        static ref INPUT_NODE_FOO_NAME: Bytes = "mp57d33657rf34lzvlbpfa1gjfv5gmpg-bar".into();
+        static ref INPUT_NODE_FOO: Node =
+            Node::Directory(DirectoryNode::new(DUMMY_DIGEST.clone(), 42,));
     }
 
     #[test]
@@ -222,9 +219,11 @@ mod test {
 
         let derivation = Derivation::from_aterm_bytes(aterm_bytes).expect("must parse");
 
-        let build_request =
-            derivation_to_build_request(&derivation, BTreeSet::from([INPUT_NODE_FOO.clone()]))
-                .expect("must succeed");
+        let build_request = derivation_to_build_request(
+            &derivation,
+            BTreeMap::from([(INPUT_NODE_FOO_NAME.clone(), INPUT_NODE_FOO.clone())]),
+        )
+        .expect("must succeed");
 
         let mut expected_environment_vars = vec![
             EnvVar {
@@ -261,7 +260,10 @@ mod test {
                 command_args: vec![":".into()],
                 outputs: vec!["nix/store/fhaj6gmwns62s6ypkcldbaj2ybvkhx3p-foo".into()],
                 environment_vars: expected_environment_vars,
-                inputs: vec![(&*INPUT_NODE_FOO).into()],
+                inputs: vec![tvix_castore::proto::Node::from_name_and_node(
+                    INPUT_NODE_FOO_NAME.clone(),
+                    INPUT_NODE_FOO.clone()
+                )],
                 inputs_dir: "nix/store".into(),
                 constraints: Some(BuildConstraints {
                     system: derivation.system.clone(),
@@ -285,7 +287,7 @@ mod test {
         let derivation = Derivation::from_aterm_bytes(aterm_bytes).expect("must parse");
 
         let build_request =
-            derivation_to_build_request(&derivation, BTreeSet::from([])).expect("must succeed");
+            derivation_to_build_request(&derivation, BTreeMap::from([])).expect("must succeed");
 
         let mut expected_environment_vars = vec![
             EnvVar {
@@ -355,7 +357,7 @@ mod test {
         let derivation = Derivation::from_aterm_bytes(aterm_bytes).expect("must parse");
 
         let build_request =
-            derivation_to_build_request(&derivation, BTreeSet::from([])).expect("must succeed");
+            derivation_to_build_request(&derivation, BTreeMap::from([])).expect("must succeed");
 
         let mut expected_environment_vars = vec![
             // Note how bar and baz are not present in the env anymore,
diff --git a/tvix/glue/src/tvix_store_io.rs b/tvix/glue/src/tvix_store_io.rs
index 8c5631382844..4185c9554810 100644
--- a/tvix/glue/src/tvix_store_io.rs
+++ b/tvix/glue/src/tvix_store_io.rs
@@ -4,9 +4,9 @@ use futures::{StreamExt, TryStreamExt};
 use nix_compat::nixhash::NixHash;
 use nix_compat::store_path::StorePathRef;
 use nix_compat::{nixhash::CAHash, store_path::StorePath};
+use std::collections::BTreeMap;
 use std::{
     cell::RefCell,
-    collections::BTreeSet,
     io,
     path::{Path, PathBuf},
     sync::Arc,
@@ -21,7 +21,7 @@ use tvix_store::nar::NarCalculationService;
 use tvix_castore::{
     blobservice::BlobService,
     directoryservice::{self, DirectoryService},
-    {NamedNode, Node},
+    Node,
 };
 use tvix_store::{pathinfoservice::PathInfoService, proto::PathInfo};
 
@@ -120,12 +120,22 @@ impl TvixStoreIO {
             .await?
         {
             // if we have a PathInfo, we know there will be a root_node (due to validation)
-            Some(path_info) => path_info
-                .node
-                .as_ref()
-                .expect("no node")
-                .try_into()
-                .expect("invalid node"),
+            // TODO: use stricter typed BuildRequest here.
+            Some(path_info) => {
+                let (name, node) = path_info
+                    .node
+                    .expect("no node")
+                    .into_name_and_node()
+                    .expect("invalid node");
+
+                assert_eq!(
+                    store_path.to_string().as_bytes(),
+                    name.as_ref(),
+                    "returned node basename must match requested store path"
+                );
+
+                node
+            }
             // If there's no PathInfo found, this normally means we have to
             // trigger the build (and insert into PathInfoService, after
             // reference scanning).
@@ -189,7 +199,7 @@ impl TvixStoreIO {
                         // Provide them, which means, here is where we recursively build
                         // all dependencies.
                         #[allow(clippy::mutable_key_type)]
-                        let mut input_nodes: BTreeSet<Node> =
+                        let mut inputs: BTreeMap<Bytes, Node> =
                             futures::stream::iter(drv.input_derivations.iter())
                                 .map(|(input_drv_path, output_names)| {
                                     // look up the derivation object
@@ -217,6 +227,7 @@ impl TvixStoreIO {
                                                 .clone()
                                         })
                                         .collect();
+
                                     // For each output, ask for the castore node.
                                     // We're in a per-derivation context, so if they're
                                     // not built yet they'll all get built together.
@@ -231,7 +242,7 @@ impl TvixStoreIO {
                                                 .await?;
 
                                             if let Some(node) = node {
-                                                Ok(node)
+                                                Ok((output_path.to_string().into(), node))
                                             } else {
                                                 Err(io::Error::other("no node produced"))
                                             }
@@ -245,26 +256,30 @@ impl TvixStoreIO {
                                 .try_collect()
                                 .await?;
 
-                        // add input sources
                         // FUTUREWORK: merge these who things together
                         #[allow(clippy::mutable_key_type)]
-                        let input_nodes_input_sources: BTreeSet<Node> =
+                        // add input sources
+                        let input_sources: BTreeMap<_, _> =
                             futures::stream::iter(drv.input_sources.iter())
                                 .then(|input_source| {
-                                    Box::pin(async {
-                                        let node = self
-                                            .store_path_to_node(input_source, Path::new(""))
-                                            .await?;
-                                        if let Some(node) = node {
-                                            Ok(node)
-                                        } else {
-                                            Err(io::Error::other("no node produced"))
+                                    Box::pin({
+                                        let input_source = input_source.clone();
+                                        async move {
+                                            let node = self
+                                                .store_path_to_node(&input_source, Path::new(""))
+                                                .await?;
+                                            if let Some(node) = node {
+                                                Ok((input_source.to_string().into(), node))
+                                            } else {
+                                                Err(io::Error::other("no node produced"))
+                                            }
                                         }
                                     })
                                 })
                                 .try_collect()
                                 .await?;
-                        input_nodes.extend(input_nodes_input_sources);
+
+                        inputs.extend(input_sources);
 
                         span.pb_set_message(&format!("🔨Building {}", &store_path));
 
@@ -273,7 +288,7 @@ impl TvixStoreIO {
                         // operations, so dealt with in the Some(…) match arm
 
                         // synthesize the build request.
-                        let build_request = derivation_to_build_request(&drv, input_nodes)?;
+                        let build_request = derivation_to_build_request(&drv, inputs)?;
 
                         // create a build
                         let build_result = self
@@ -287,17 +302,21 @@ impl TvixStoreIO {
 
                         // For each output, insert a PathInfo.
                         for output in &build_result.outputs {
-                            let root_node = output.try_into().expect("invalid root node");
+                            let (output_name, output_node) =
+                                output.clone().into_name_and_node().expect("invalid node");
 
                             // calculate the nar representation
                             let (nar_size, nar_sha256) = self
                                 .nar_calculation_service
-                                .calculate_nar(&root_node)
+                                .calculate_nar(&output_node)
                                 .await?;
 
                             // assemble the PathInfo to persist
                             let path_info = PathInfo {
-                                node: Some((&root_node).into()),
+                                node: Some(tvix_castore::proto::Node::from_name_and_node(
+                                    output_name,
+                                    output_node,
+                                )),
                                 references: vec![], // TODO: refscan
                                 narinfo: Some(tvix_store::proto::NarInfo {
                                     nar_size,
@@ -330,14 +349,15 @@ impl TvixStoreIO {
                         }
 
                         // find the output for the store path requested
+                        let s = store_path.to_string();
+
                         build_result
                             .outputs
                             .into_iter()
-                            .map(|output_node| Node::try_from(&output_node).expect("invalid node"))
-                            .find(|output_node| {
-                                output_node.get_name() == store_path.to_string().as_bytes()
-                            })
+                            .map(|e| e.into_name_and_node().expect("invalid node"))
+                            .find(|(output_name, _output_node)| output_name == s.as_bytes())
                             .expect("build didn't produce the store path")
+                            .1
                     }
                 }
             }
@@ -380,12 +400,16 @@ impl TvixStoreIO {
                 },
             )?;
 
-        // assemble a new root_node with a name that is derived from the nar hash.
-        let root_node = root_node.rename(output_path.to_string().into_bytes().into());
-        tvix_store::import::log_node(&root_node, path);
+        tvix_store::import::log_node(name.as_bytes(), &root_node, path);
 
-        let path_info =
-            tvix_store::import::derive_nar_ca_path_info(nar_size, nar_sha256, Some(ca), root_node);
+        // construct a PathInfo
+        let path_info = tvix_store::import::derive_nar_ca_path_info(
+            nar_size,
+            nar_sha256,
+            Some(ca),
+            output_path.to_string().into(),
+            root_node,
+        );
 
         Ok((
             path_info,
@@ -540,13 +564,12 @@ impl EvalIO for TvixStoreIO {
                             self.directory_service.as_ref().get(&digest).await
                         })? {
                             let mut children: Vec<(bytes::Bytes, FileType)> = Vec::new();
-                            for node in directory.nodes() {
+                            // TODO: into_nodes() to avoid cloning
+                            for (name, node) in directory.nodes() {
                                 children.push(match node {
-                                    Node::Directory(e) => {
-                                        (e.get_name().clone(), FileType::Directory)
-                                    }
-                                    Node::File(e) => (e.get_name().clone(), FileType::Regular),
-                                    Node::Symlink(e) => (e.get_name().clone(), FileType::Symlink),
+                                    Node::Directory(_) => (name.clone(), FileType::Directory),
+                                    Node::File(_) => (name.clone(), FileType::Regular),
+                                    Node::Symlink(_) => (name.clone(), FileType::Symlink),
                                 })
                             }
                             Ok(children)