Merge pull request #4767 from NixOS/fix-s3-ca-caching

Fix the double-slash in the realisations path

src/libstore/binary-cache-store.hh

@@ -34,7 +34,7 @@ private:
 protected:
 
     // The prefix under which realisation infos will be stored
-    const std::string realisationsPrefix = "/realisations";
+    const std::string realisationsPrefix = "realisations";
 
     BinaryCacheStore(const Params & params);
 

src/libstore/local-binary-cache-store.cc

@@ -93,7 +93,7 @@ protected:
 void LocalBinaryCacheStore::init()
 {
     createDirs(binaryCacheDir + "/nar");
-    createDirs(binaryCacheDir + realisationsPrefix);
+    createDirs(binaryCacheDir + "/" + realisationsPrefix);
     if (writeDebugInfo)
         createDirs(binaryCacheDir + "/debuginfo");
     BinaryCacheStore::init();