From 8f0c9853d54987e50134164a80f7715025bcca4d Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Sun, 10 Nov 2024 19:33:56 +0000
Subject: [PATCH] pypy3Packages.home-assistant-chip-clusters: fix the eval
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Without the change the eval fails as:

    nix build --no-link -f. pypy3Packages.home-assistant-chip-clusters
    error:
       … while evaluating the attribute 'drvPath'
         at lib/customisation.nix:365:7:
          364|     in commonAttrs // {
          365|       drvPath = assert condition; drv.drvPath;
             |       ^
          366|       outPath = assert condition; drv.outPath;

       … while evaluating the attribute 'drvPath'
         at lib/customisation.nix:365:7:
          364|     in commonAttrs // {
          365|       drvPath = assert condition; drv.drvPath;
             |       ^
          366|       outPath = assert condition; drv.outPath;

       … while calling the 'derivationStrict' builtin
         at <nix/derivation-internal.nix>:34:12:
           33|
           34|   strict = derivationStrict drvAttrs;
             |            ^
           35|

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: expected a set but found null: null

It happens because one of the dependencies is `null`:

    nix-repl> pypy310Packages.brotlicffi.propagatedBuildInputs
    [
    null
      «derivation /nix/store/1jdx98sk2ii89m6ksbfg7rv8ryp9wdgi-pypy3.10-7.3.12.drv»
    ]

Let's filter those out.
---
 .../python-modules/home-assistant-chip-wheels/default.nix       | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/home-assistant-chip-wheels/default.nix b/pkgs/development/python-modules/home-assistant-chip-wheels/default.nix
index caec0be06cbf..469905525324 100644
--- a/pkgs/development/python-modules/home-assistant-chip-wheels/default.nix
+++ b/pkgs/development/python-modules/home-assistant-chip-wheels/default.nix
@@ -229,7 +229,7 @@ stdenv.mkDerivation rec {
           map (dep: {
             name = dep.name;
             value = dep;
-          }) list
+          }) (lib.filter (x: x != null) list)
         );
       saturateDependencies =
         deps: