From 570aed4b46916551da969c4daeef0322461ac2fe Mon Sep 17 00:00:00 2001
From: Jan Malakhovski <oxij@oxij.org>
Date: Sat, 23 Feb 2019 18:06:51 +0000
Subject: lib: add `showWarnings`

---
 lib/trivial.nix | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'lib/trivial.nix')

diff --git a/lib/trivial.nix b/lib/trivial.nix
index 3f0816b55405..2d682961035f 100644
--- a/lib/trivial.nix
+++ b/lib/trivial.nix
@@ -259,9 +259,10 @@ rec {
   # TODO: figure out a clever way to integrate location information from
   # something like __unsafeGetAttrPos.
 
-  warn = msg: builtins.trace "WARNING: ${msg}";
+  warn = msg: builtins.trace "warning: ${msg}";
   info = msg: builtins.trace "INFO: ${msg}";
 
+  showWarnings = warnings: res: lib.fold (w: x: warn w x) res warnings;
 
   ## Function annotations
 
-- 
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