From fab2ee8c10c2d39310c8e3cdddde9fd118727063 Mon Sep 17 00:00:00 2001
From: Jan Tojnar <jtojnar@gmail.com>
Date: Wed, 13 May 2020 08:30:39 +0200
Subject: [PATCH] maintainers/scripts/update.nix: derivation is the final
 station

It does not make sense to look for derivations within derivations,
not even when `recurseForDerivations` is true. Nix does not do that either:

https://github.com/NixOS/nix/blob/ebc024df2287085d48ed6194aa756fd70c07f76c/src/libexpr/get-drvs.cc#L346-L355
---
 maintainers/scripts/update.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/maintainers/scripts/update.nix b/maintainers/scripts/update.nix
index 23ea11b66e1a..492000a10377 100755
--- a/maintainers/scripts/update.nix
+++ b/maintainers/scripts/update.nix
@@ -32,8 +32,8 @@ let
           (name: pkg:
             let
               result = builtins.tryEval (
-                if lib.isDerivation pkg && cond name pkg
-                  then [(return name pkg)]
+                if lib.isDerivation pkg
+                  then lib.optional (cond name pkg) (return name pkg)
                 else if pkg.recurseForDerivations or false || pkg.recurseForRelease or false
                   then packagesWith cond return pkg
                 else []