1 files changed, 17 insertions, 0 deletions
diff --git a/src/libstore/binary-cache-store.cc b/src/libstore/binary-cache-store.cc
index a918b7208..085dc7ba1 100644
--- a/src/libstore/binary-cache-store.cc
+++ b/src/libstore/binary-cache-store.cc
@@ -443,6 +443,23 @@ StorePath BinaryCacheStore::addTextToStore(const string & name, const string & s
     })->path;
 }
 
+std::optional<const Realisation> BinaryCacheStore::queryRealisation(const DrvOutput & id)
+{
+    auto outputInfoFilePath = realisationsPrefix + "/" + id.to_string() + ".doi";
+    auto rawOutputInfo = getFile(outputInfoFilePath);
+
+    if (rawOutputInfo) {
+        return { Realisation::parse(*rawOutputInfo, outputInfoFilePath) };
+    } else {
+        return std::nullopt;
+    }
+}
+
+void BinaryCacheStore::registerDrvOutput(const Realisation& info) {
+    auto filePath = realisationsPrefix + "/" + info.id.to_string() + ".doi";
+    upsertFile(filePath, info.to_string(), "text/x-nix-derivertopath");
+}
+
 ref<FSAccessor> BinaryCacheStore::getFSAccessor()
 {
     return make_ref<RemoteFSAccessor>(ref<Store>(shared_from_this()), localNarCache);