From 962b82ef25069893779ed56d31e44814793f9273 Mon Sep 17 00:00:00 2001
From: regnat <rg@regnat.ovh>
Date: Tue, 15 Dec 2020 09:34:45 +0100
Subject: [PATCH] Fix BinaryCacheStore::registerDrvOutput

Was crashing because coercing a json document into a string is only
valid if the json is a string, otherwise we need to call `.dump()`
---
 src/libstore/binary-cache-store.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libstore/binary-cache-store.cc b/src/libstore/binary-cache-store.cc
index 94c11355f..4f5f8607d 100644
--- a/src/libstore/binary-cache-store.cc
+++ b/src/libstore/binary-cache-store.cc
@@ -460,7 +460,7 @@ std::optional<const Realisation> BinaryCacheStore::queryRealisation(const DrvOut
 
 void BinaryCacheStore::registerDrvOutput(const Realisation& info) {
     auto filePath = realisationsPrefix + "/" + info.id.to_string() + ".doi";
-    upsertFile(filePath, info.toJSON(), "application/json");
+    upsertFile(filePath, info.toJSON().dump(), "application/json");
 }
 
 ref<FSAccessor> BinaryCacheStore::getFSAccessor()