From 6c7b81047f8ead0bb2f8dd588dfcb5f50d1554a9 Mon Sep 17 00:00:00 2001
From: John Ericson <John.Ericson@Obsidian.Systems>
Date: Wed, 9 Sep 2020 17:35:54 +0000
Subject: [PATCH] Make sure srcStore has path before coppying

---
 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 aed43543f..8075b3ff9 100644
--- a/src/libstore/store-api.cc
+++ b/src/libstore/store-api.cc
@@ -847,6 +847,7 @@ std::map<StorePath, StorePath> copyPaths(ref<Store> srcStore, ref<Store> dstStor
                             return i.second == storePath;
                         });
                         // drv file is always CA
+                        srcStore->ensurePath(drvPath);
                         copyStorePath(srcStore, dstStore, drvPath, repair, checkSigs);
                         dstStore->buildPaths({{
                             drvPath,