refactor(tvix): move castore into tvix-castore crate r/6629

This splits the pure content-addressed layers from tvix-store into a
`castore` crate, and only leaves PathInfo related things, as well as the
CLI entrypoint in the tvix-store crate.

Notable changes:
 - `fixtures` and `utils` had to be moved out of the `test` cfg, so they
   can be imported from tvix-store.
 - Some ad-hoc fixtures in the test were moved to proper fixtures in the
   same step.
 - The protos are now created by a (more static) recipe in the protos/
   directory.

The (now two) golang targets are commented out, as it's not possible to
update them properly in the same CL. This will be done by a followup CL
once this is merged (and whitby deployed)

Bug: https://b.tvl.fyi/issues/301

Change-Id: I8d675d4bf1fb697eb7d479747c1b1e3635718107
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9370
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: flokli <flokli@flokli.de>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>

1 files changed, 2 insertions, 10 deletions

diff --git a/tvix/store/protos/pathinfo.proto b/tvix/store/protos/pathinfo.proto
index 896d4aa225ac..aa98c6df9a2d 100644
--- a/tvix/store/protos/pathinfo.proto
+++ b/tvix/store/protos/pathinfo.proto
@@ -4,7 +4,7 @@ syntax = "proto3";
 
 package tvix.store.v1;
 
-import "tvix/store/protos/castore.proto";
+import "tvix/castore/protos/castore.proto";
 
 option go_package = "code.tvl.fyi/tvix/store/protos;storev1";
 
@@ -12,7 +12,7 @@ option go_package = "code.tvl.fyi/tvix/store/protos;storev1";
 // That's a single element inside /nix/store.
 message PathInfo {
     // The path can be a directory, file or symlink.
-    Node node = 1;
+    tvix.castore.v1.Node node = 1;
 
     // List of references (output path hashes)
     // This really is the raw *bytes*, after decoding nixbase32, and not a
@@ -23,14 +23,6 @@ message PathInfo {
     NARInfo narinfo = 3;
 }
 
-message Node {
-    oneof node {
-        DirectoryNode directory = 1;
-        FileNode file = 2;
-        SymlinkNode symlink = 3;
-    }
-}
-
 // Nix C++ uses NAR (Nix Archive) as a format to transfer store paths,
 // and stores metadata and signatures in NARInfo files.
 // Store all these attributes in a separate message.