From d6373c62aeb1c0af5496f081274a9858c30813cc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ga=C3=A9tan=20Lepage?=
 <33058747+GaetanLepage@users.noreply.github.com>
Date: Fri, 31 Mar 2023 15:10:27 +0200
Subject: [PATCH] wrappers/standalone: handle assertions (#305)

---
 wrappers/standalone.nix | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/wrappers/standalone.nix b/wrappers/standalone.nix
index 3d0fb86d..f526d834 100644
--- a/wrappers/standalone.nix
+++ b/wrappers/standalone.nix
@@ -9,5 +9,14 @@ default_pkgs: modules: {
   eval = lib.evalModules {
     modules = (modules pkgs) ++ [module wrap];
   };
+
+  handleAssertions = config: let
+    failedAssertions = map (x: x.message) (lib.filter (x: !x.assertion) config.assertions);
+  in
+    if failedAssertions != []
+    then throw "\nFailed assertions:\n${builtins.concatStringsSep "\n" (map (x: "- ${x}") failedAssertions)}"
+    else lib.showWarnings config.warnings config;
+
+  config = handleAssertions eval.config;
 in
-  eval.config.finalPackage
+  config.finalPackage