refactor(nix-compat/store_path): make digest and name private

Change-Id: I62cbe883afcf3dd0c8d4de0e3b845069eb750c97
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9855
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI

tvix/store/src/fs/mod.rs

@@ -169,9 +169,10 @@ impl TvixStoreFs {
         } else {
             // If we don't have it, look it up in PathInfoService.
             let path_info_service = self.path_info_service.clone();
-            let task = self
-                .tokio_handle
-                .spawn(async move { path_info_service.get(store_path.digest).await });
+            let task = self.tokio_handle.spawn({
+                let digest = *store_path.digest();
+                async move { path_info_service.get(digest).await }
+            });
             match self.tokio_handle.block_on(task).unwrap()? {
                 // the pathinfo doesn't exist, so the file doesn't exist.
                 None => Ok(None),

tvix/store/src/pathinfoservice/memory.rs

@@ -74,7 +74,7 @@ impl PathInfoService for MemoryPathInfoService {
             // This overwrites existing PathInfo objects.
             Ok(nix_path) => {
                 let mut db = self.db.write().unwrap();
-                db.insert(nix_path.digest, path_info.clone());
+                db.insert(*nix_path.digest(), path_info.clone());
 
                 Ok(path_info)
             }

tvix/store/src/pathinfoservice/sled.rs

@@ -119,7 +119,10 @@ impl PathInfoService for SledPathInfoService {
             ))),
             // In case the PathInfo is valid, and we were able to extract a NixPath, store it in the database.
             // This overwrites existing PathInfo objects.
-            Ok(nix_path) => match self.db.insert(nix_path.digest, path_info.encode_to_vec()) {
+            Ok(nix_path) => match self
+                .db
+                .insert(*nix_path.digest(), path_info.encode_to_vec())
+            {
                 Ok(_) => Ok(path_info),
                 Err(e) => {
                     warn!("failed to insert PathInfo: {}", e);

tvix/store/src/proto/mod.rs

@@ -130,12 +130,12 @@ impl PathInfo {
                     // This is safe, because we ensured the proper length earlier already.
                     let reference_digest = self.references[i].to_vec().try_into().unwrap();
 
-                    if reference_names_store_path.digest != reference_digest {
+                    if reference_names_store_path.digest() != &reference_digest {
                         return Err(
                             ValidatePathInfoError::InconsistentNarinfoReferenceNameDigest(
                                 i,
                                 reference_digest,
-                                reference_names_store_path.digest,
+                                *reference_names_store_path.digest(),
                             ),
                         );
                     }