From 6e01ecd112dce8d8bbe46c839f982892a3ffb589 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Mon, 29 May 2017 16:08:56 +0200
Subject: [PATCH] Fix nix-copy-closure test
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Fixes

  client# error: size mismatch importing path ‘/nix/store/ywf5fihjlxwijm6ygh6s0a353b5yvq4d-libidn2-0.16’; expected 0, got 120264

This is mostly an artifact of the NixOS VM test environment, where the
Nix database doesn't contain hashes/sizes.

http://hydra.nixos.org/build/53537471
---
 src/libstore/store-api.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libstore/store-api.cc b/src/libstore/store-api.cc
index e6cbd53dc..76ed99422 100644
--- a/src/libstore/store-api.cc
+++ b/src/libstore/store-api.cc
@@ -547,6 +547,7 @@ void copyStorePath(ref<Store> srcStore, ref<Store> dstStore,
     if (!info->narHash && dontCheckSigs) {
         auto info2 = make_ref<ValidPathInfo>(*info);
         info2->narHash = hashString(htSHA256, *sink.s);
+        if (!info->narSize) info2->narSize = sink.s->size();
         info = info2;
     }