feat(nix-compat/derivation): make fod_digest public r/7536

This will be used inside glue, to populate the CA field.

Change-Id: I52350d66ad09c90c4e9f3bc6ea44fba4427f1576
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10946
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: tazjin <tazjin@tvl.su>

1 files changed, 1 insertions, 1 deletions

diff --git a/tvix/nix-compat/src/derivation/mod.rs b/tvix/nix-compat/src/derivation/mod.rs
index 5a59d640d6..b876a215a2 100644
--- a/tvix/nix-compat/src/derivation/mod.rs
+++ b/tvix/nix-compat/src/derivation/mod.rs
@@ -129,7 +129,7 @@ impl Derivation {
     /// TODO: this is kinda the string from [build_ca_path] with a
     /// [CAHash::Flat], what's fed to `build_store_path_from_fingerprint_parts`
     /// (except the out_output.path being an empty string)
-    fn fod_digest(&self) -> Option<[u8; 32]> {
+    pub fn fod_digest(&self) -> Option<[u8; 32]> {
         if self.outputs.len() != 1 {
             return None;
         }