3 files changed, 23 insertions, 1 deletions
diff --git a/src/libstore/realisation.cc b/src/libstore/realisation.cc
index f871e6437..d63ec5ea2 100644
--- a/src/libstore/realisation.cc
+++ b/src/libstore/realisation.cc
@@ -78,7 +78,7 @@ Realisation Realisation::fromJSON(
         auto fieldIterator = json.find(fieldName);
         if (fieldIterator == json.end())
             return std::nullopt;
-        return *fieldIterator;
+        return {*fieldIterator};
     };
     auto getField = [&](std::string fieldName) -> std::string {
         if (auto field = getOptionalField(fieldName))
diff --git a/src/libstore/store-api.cc b/src/libstore/store-api.cc
index aab4ce94c..84767e917 100644
--- a/src/libstore/store-api.cc
+++ b/src/libstore/store-api.cc
@@ -1109,6 +1109,21 @@ void copyClosure(
     copyPaths(srcStore, dstStore, closure, repair, checkSigs, substitute);
 }
 
+void copyClosure(
+    Store & srcStore,
+    Store & dstStore,
+    const StorePathSet & storePaths,
+    RepairFlag repair,
+    CheckSigsFlag checkSigs,
+    SubstituteFlag substitute)
+{
+    if (&srcStore == &dstStore) return;
+
+    StorePathSet closure;
+    srcStore.computeFSClosure(storePaths, closure);
+    copyPaths(srcStore, dstStore, closure, repair, checkSigs, substitute);
+}
+
 std::optional<ValidPathInfo> decodeValidPathInfo(const Store & store, std::istream & str, std::optional<HashResult> hashGiven)
 {
     std::string path;
diff --git a/src/libstore/store-api.hh b/src/libstore/store-api.hh
index 07f45d1e9..8306509f3 100644
--- a/src/libstore/store-api.hh
+++ b/src/libstore/store-api.hh
@@ -815,6 +815,13 @@ void copyClosure(
     CheckSigsFlag checkSigs = CheckSigs,
     SubstituteFlag substitute = NoSubstitute);
 
+void copyClosure(
+    Store & srcStore, Store & dstStore,
+    const StorePathSet & paths,
+    RepairFlag repair = NoRepair,
+    CheckSigsFlag checkSigs = CheckSigs,
+    SubstituteFlag substitute = NoSubstitute);
+
 /* Remove the temporary roots file for this process.  Any temporary
    root becomes garbage after this point unless it has been registered
    as a (permanent) root. */