refactor(tvix/castore): move *Node and Directory to crate root r/8486

*Node and Directory are types of the tvix-castore model, not the tvix
DirectoryService model. A DirectoryService only happens to send
Directories.

Move types into individual files in a nodes/ subdirectory, as it's
gotten too cluttered in a single file, and (re-)export all types from
the crate root.

This has the effect that we now cannot poke at private fields directly
from other files inside `crate::directoryservice` (as it's not all in
the same file anymore), but that's a good thing, it now forces us to go
through the proper accessors.

For the same reasons, we currently also need to introduce the `rename`
functions on each *Node directly.

A followup is gonna move the names out of the individual enum kinds, so
we can better represent "unnamed nodes".

Change-Id: Icdb34dcfe454c41c94f2396e8e99973d27db8418
Reviewed-on: https://cl.tvl.fyi/c/depot/+/12199
Reviewed-by: yuka <yuka@yuka.dev>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI

1 files changed, 2 insertions, 2 deletions

diff --git a/tvix/glue/src/tvix_build.rs b/tvix/glue/src/tvix_build.rs
index 0f930bfe5099..7fff0b9cf337 100644
--- a/tvix/glue/src/tvix_build.rs
+++ b/tvix/glue/src/tvix_build.rs
@@ -10,7 +10,7 @@ use tvix_build::proto::{
     build_request::{AdditionalFile, BuildConstraints, EnvVar},
     BuildRequest,
 };
-use tvix_castore::directoryservice::Node;
+use tvix_castore::Node;
 
 /// These are the environment variables that Nix sets in its sandbox for every
 /// build.
@@ -197,8 +197,8 @@ mod test {
         build_request::{AdditionalFile, BuildConstraints, EnvVar},
         BuildRequest,
     };
-    use tvix_castore::directoryservice::{DirectoryNode, Node};
     use tvix_castore::fixtures::DUMMY_DIGEST;
+    use tvix_castore::{DirectoryNode, Node};
 
     use crate::tvix_build::NIX_ENVIRONMENT_VARS;