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refactor(tvix/castore): use Directory struct separate from proto one

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This uses our own data type to deal with Directories in the castore model.

It makes some undesired states unrepresentable, removing the need for conversions and checking in various places:

 - In the protobuf, blake3 digests could have a wrong length, as proto doesn't know fixed-size fields. We now use `B3Digest`, which makes cloning cheaper, and removes the need to do size-checking everywhere.
 - In the protobuf, we had three different lists for `files`, `symlinks` and `directories`. This was mostly a protobuf size optimization, but made interacting with them a bit awkward. This has now been replaced with a list of enums, and convenience iterators to get various nodes, and add new ones.

Change-Id: I7b92691bb06d77ff3f58a5ccea94a22c16f84f04
Reviewed-on: https://cl.tvl.fyi/c/depot/+/12057
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
This commit is contained in:
Yureka 2024-07-29 14:34:50 +02:00 • committed by yuka
parent 5d3f3158d6
commit 3ca0b53840
53 changed files with 1429 additions and 1377 deletions
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18
tvix/glue/src/builtins/derivation.rs
View file

@ -179,9 +179,7 @@ pub(crate) mod derivation_builtins {
use nix_compat::nixhash::CAHash;
use nix_compat::store_path::{build_ca_path, hash_placeholder};
use sha2::Sha256;
use tvix_castore::proto as castorepb;
use tvix_castore::proto::node::Node;
use tvix_castore::proto::FileNode;
use tvix_castore::directoryservice::{FileNode, Node};
use tvix_eval::generators::Gen;
use tvix_eval::{NixContext, NixContextElement, NixString};
use tvix_store::proto::{NarInfo, PathInfo};
@ -579,12 +577,10 @@ pub(crate) mod derivation_builtins {
})
.map_err(DerivationError::InvalidDerivation)?;
let root_node = Node::File(FileNode {
name: store_path.to_string().into(),
digest: blob_digest.into(),
size: blob_size,
executable: false,
});
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)))?,
);
// calculate the nar hash
let (nar_size, nar_sha256) = state
@ -604,9 +600,7 @@ pub(crate) mod derivation_builtins {
state
.path_info_service
.put(PathInfo {
node: Some(castorepb::Node {
node: Some(root_node),
}),
node: Some((&root_node).into()),
references: reference_paths
.iter()
.map(|x| bytes::Bytes::copy_from_slice(x.digest()))

23
tvix/glue/src/builtins/import.rs
View file

@ -2,6 +2,8 @@
use crate::builtins::errors::ImportError;
use std::path::Path;
use tvix_castore::directoryservice::FileNode;
use tvix_castore::directoryservice::Node;
use tvix_castore::import::ingest_entries;
use tvix_eval::{
builtin_macros::builtins,
@ -16,7 +18,7 @@ async fn filtered_ingest(
co: GenCo,
path: &Path,
filter: Option<&Value>,
) -> Result<tvix_castore::proto::node::Node, ErrorKind> {
) -> Result<Node, ErrorKind> {
let mut entries: Vec<walkdir::DirEntry> = vec![];
let mut it = walkdir::WalkDir::new(path)
.follow_links(false)
@ -114,8 +116,6 @@ mod import_builtins {
use nix_compat::store_path::StorePath;
use sha2::Digest;
use tokio::io::AsyncWriteExt;
use tvix_castore::proto::node::Node;
use tvix_castore::proto::FileNode;
use tvix_eval::builtins::coerce_value_to_path;
use tvix_eval::generators::Gen;
use tvix_eval::{generators::GenCo, ErrorKind, Value};
@ -214,13 +214,16 @@ mod import_builtins {
.tokio_handle
.block_on(async { blob_writer.close().await })?;
let root_node = Node::File(FileNode {
// The name gets set further down, while constructing the PathInfo.
name: "".into(),
digest: blob_digest.into(),
size: blob_size,
executable: false,
});
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 ca_hash = if recursive_ingestion {
let (_nar_size, nar_sha256) = state