nix-build: Copy drv closure between eval store and build store

1 files changed, 5 insertions, 2 deletions

diff --git a/src/nix-build/nix-build.cc b/src/nix-build/nix-build.cc
index 4305c0ac1..4ee471520 100755
--- a/src/nix-build/nix-build.cc
+++ b/src/nix-build/nix-build.cc
@@ -532,6 +532,7 @@ static void main_nix_build(int argc, char * * argv)
 
         std::vector<StorePathWithOutputs> pathsToBuild;
         std::vector<std::pair<StorePath, std::string>> pathsToBuildOrdered;
+        RealisedPath::Set drvsToCopy;
 
         std::map<StorePath, std::pair<size_t, StringSet>> drvMap;
 
@@ -544,15 +545,17 @@ static void main_nix_build(int argc, char * * argv)
 
             pathsToBuild.push_back({drvPath, {outputName}});
             pathsToBuildOrdered.push_back({drvPath, {outputName}});
+            drvsToCopy.insert(drvPath);
 
             auto i = drvMap.find(drvPath);
             if (i != drvMap.end())
                 i->second.second.insert(outputName);
-            else {
+            else
                 drvMap[drvPath] = {drvMap.size(), {outputName}};
-            }
         }
 
+        copyClosure(state->store, state->buildStore, drvsToCopy);
+
         buildPaths(pathsToBuild);
 
         if (dryRun) return;