* Start of `nix-store --export' operation for serialising a store

path.  This is like `nix-store --dump', only it also dumps the
  meta-information of the store path (references, deriver).  Will add
  a `--sign' flag later to add a cryptographic signature, which we
  will use for exchanging store paths between build farm machines in a
  secure manner.

src/libstore/remote-store.cc

@@ -243,6 +243,13 @@ Path RemoteStore::addTextToStore(const string & suffix, const string & s,
 }
 
 
+void RemoteStore::exportPath(const Path & path, bool sign,
+    Sink & sink)
+{
+    throw Error("not implemented");
+}
+
+
 void RemoteStore::buildDerivations(const PathSet & drvPaths)
 {
     writeInt(wopBuildDerivations, to);