From 54cbe35bf9b3513d5789c76a9be9a448bed24d2c Mon Sep 17 00:00:00 2001
From: Eman Resu <78693624+quatquatt@users.noreply.github.com>
Date: Thu, 30 Apr 2026 10:33:31 -0400
Subject: [PATCH] lib.callPackageWith: use custom version of filterAttrs

Avoids a double-negation and passing the name every time.
---
 lib/customisation.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/customisation.nix b/lib/customisation.nix
index 2cce885dde6f..9ce5f1eece3e 100644
--- a/lib/customisation.nix
+++ b/lib/customisation.nix
@@ -19,7 +19,6 @@ let
     sortOn
     take
     length
-    filterAttrs
     head
     pipe
     isDerivation
@@ -265,6 +264,7 @@ rec {
   */
   callPackageWith =
     let
+      filterTrueAttrs = set: removeAttrs set (filter (name: set.${name}) (attrNames set));
       makeErrorMessage =
         autoArgs: fn: args: fargs: arg:
         let
@@ -311,7 +311,7 @@ rec {
       # wouldn't be passed to it
       missingArgs =
         # Filter out arguments that have a default value
-        filterAttrs (name: value: !value)
+        filterTrueAttrs
           # Filter out arguments that would be passed
           (removeAttrs fargs (attrNames allArgs));