feat(tvix/build): add refscanning interface r/8742

This provides a generic interface to let the builder search for needles
 in the output, as described in the notes at `docs/src/build/index.md`.

Change-Id: Ic2c5bd563e9aa2e766c157f2b13cdb19aede12f8
Reviewed-on: https://cl.tvl.fyi/c/depot/+/12531
Autosubmit: yuka <yuka@yuka.dev>
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
Reviewed-by: Brian Olsen <me@griff.name>

1 files changed, 4 insertions, 0 deletions

diff --git a/tvix/glue/src/tvix_build.rs b/tvix/glue/src/tvix_build.rs
index ae01351503f2..5187a76d48e5 100644
--- a/tvix/glue/src/tvix_build.rs
+++ b/tvix/glue/src/tvix_build.rs
@@ -100,6 +100,7 @@ pub(crate) fn derivation_to_build_request(
     });
 
     let build_request = BuildRequest {
+        refscan_needles: vec![], // TODO refscan
         command_args,
         outputs: output_paths,
 
@@ -276,6 +277,7 @@ mod test {
                 additional_files: vec![],
                 working_dir: "build".into(),
                 scratch_paths: vec!["build".into(), "nix/store".into()],
+                refscan_needles: vec![],
             },
             build_request
         );
@@ -345,6 +347,7 @@ mod test {
                 additional_files: vec![],
                 working_dir: "build".into(),
                 scratch_paths: vec!["build".into(), "nix/store".into()],
+                refscan_needles: vec![],
             },
             build_request
         );
@@ -431,6 +434,7 @@ mod test {
                 ],
                 working_dir: "build".into(),
                 scratch_paths: vec!["build".into(), "nix/store".into()],
+                refscan_needles: vec![],
             },
             build_request
         );