From 7dca9c24c4acdf2e2abe0f6a138b734701098cc6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?F=C3=A9lix=20Baylac-Jacqu=C3=A9?= <felix@alternativebit.fr>
Date: Tue, 27 Apr 2021 10:44:29 +0200
Subject: [PATCH] nix build: make dry-run to print a json output if --json is
 enabled

---
 src/nix/build.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/nix/build.cc b/src/nix/build.cc
index 03159b6cc..226c551fa 100644
--- a/src/nix/build.cc
+++ b/src/nix/build.cc
@@ -54,6 +54,8 @@ struct CmdBuild : InstallablesCommand, MixDryRun, MixJSON, MixProfile
     {
         auto buildables = build(store, dryRun ? Realise::Nothing : Realise::Outputs, installables, buildMode);
 
+        if (json) logger->cout("%s", derivedPathsWithHintsToJSON(buildables, store).dump());
+
         if (dryRun) return;
 
         if (outLink != "")
@@ -79,8 +81,6 @@ struct CmdBuild : InstallablesCommand, MixDryRun, MixJSON, MixProfile
                 }
 
         updateProfile(buildables);
-
-        if (json) logger->cout("%s", derivedPathsWithHintsToJSON(buildables, store).dump());
     }
 };