From 451c223deea17918454ae083dcfc0ea2b6103cab Mon Sep 17 00:00:00 2001
From: Shea Levy <shea@shealevy.com>
Date: Tue, 10 Jan 2017 12:22:22 -0500
Subject: [PATCH] builtins.readFile: Put the references of the file, not those
 needed to realize the file, into the context

---
 src/libexpr/primops.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc
index 4398cc951..5be61c647 100644
--- a/src/libexpr/primops.cc
+++ b/src/libexpr/primops.cc
@@ -779,6 +779,9 @@ static void prim_readFile(EvalState & state, const Pos & pos, Value * * args, Va
     string s = readFile(state.checkSourcePath(path));
     if (s.find((char) 0) != string::npos)
         throw Error(format("the contents of the file ‘%1%’ cannot be represented as a Nix string") % path);
+    context = state.store->isInStore(path) ?
+        state.store->queryPathInfo(state.store->toStorePath(path))->references :
+        PathSet{};
     mkString(v, s.c_str(), context);
 }