From bf2f25e3d83f980b86fba315388372a1cae8f7d6 Mon Sep 17 00:00:00 2001
From: Malte Brandy <malte.brandy@maralorn.de>
Date: Mon, 6 Jun 2022 20:55:05 +0200
Subject: respect print-missing variable in new-style build command
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Currently nix-build prints the "printMissing" information by default,
nix build doesn’t.
People generally don‘t notice this because the standard log-format of
nix build would not display the printMissing
output long enough to perceive the information.

This addresses https://github.com/NixOS/nix/issues/6561
---
 src/libcmd/installables.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/libcmd/installables.cc b/src/libcmd/installables.cc
index 21db2b08b..39a5c1a9f 100644
--- a/src/libcmd/installables.cc
+++ b/src/libcmd/installables.cc
@@ -919,6 +919,9 @@ std::vector<std::pair<std::shared_ptr<Installable>, BuiltPath>> Installable::bui
         break;
 
     case Realise::Outputs: {
+        if (settings.printMissing)
+          printMissing(store, pathsToBuild, lvlInfo);
+
         for (auto & buildResult : store->buildPathsWithResults(pathsToBuild, bMode, evalStore)) {
             if (!buildResult.success())
                 buildResult.rethrow();
-- 
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