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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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19
tvix/store/src/import.rs
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@ -1,8 +1,9 @@
use std::path::Path;
use tracing::{debug, instrument};
use tvix_castore::{
blobservice::BlobService, directoryservice::DirectoryService, import::fs::ingest_path,
proto::node::Node, B3Digest,
blobservice::BlobService,
directoryservice::{DirectoryService, NamedNode, Node},
import::fs::ingest_path,
};
use nix_compat::{
@ -32,24 +33,24 @@ pub fn log_node(node: &Node, path: &Path) {
Node::Directory(directory_node) => {
debug!(
path = ?path,
name = ?directory_node.name,
digest = %B3Digest::try_from(directory_node.digest.clone()).unwrap(),
name = ?directory_node.get_name(),
digest = %directory_node.digest(),
"import successful",
)
}
Node::File(file_node) => {
debug!(
path = ?path,
name = ?file_node.name,
digest = %B3Digest::try_from(file_node.digest.clone()).unwrap(),
name = ?file_node.get_name(),
digest = %file_node.digest(),
"import successful"
)
}
Node::Symlink(symlink_node) => {
debug!(
path = ?path,
name = ?symlink_node.name,
target = ?symlink_node.target,
name = ?symlink_node.get_name(),
target = ?symlink_node.target(),
"import successful"
)
}
@ -87,7 +88,7 @@ pub fn derive_nar_ca_path_info(
// assemble the [crate::proto::PathInfo] object.
PathInfo {
node: Some(tvix_castore::proto::Node {
node: Some(root_node),
node: Some((&root_node).into()),
}),
// There's no reference scanning on path contents ingested like this.
references: vec![],