nix: Add --store flag

This is a bit user-friendlier than using $NIX_REMOTE.

1 files changed, 2 insertions, 3 deletions

diff --git a/src/nix/command.hh b/src/nix/command.hh
index 27c3ab7f21..5bf391d936 100644
--- a/src/nix/command.hh
+++ b/src/nix/command.hh
@@ -18,9 +18,8 @@ class Store;
 /* A command that require a Nix store. */
 struct StoreCommand : virtual Command
 {
-    bool reserveSpace;
-    StoreCommand(bool reserveSpace = true)
-        : reserveSpace(reserveSpace) { };
+    std::string storeUri;
+    StoreCommand();
     void run() override;
     virtual void run(ref<Store>) = 0;
 };