From 38b39dd404feb6229110ddbc08bdb834a797b4ee Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Thu, 11 Jan 2024 17:25:31 +0000
Subject: [PATCH] ruby-modules/bundled-common: do not define `gemType` for
 `null` packages
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Without the change `gemType` gets defined via `null` attrset that
exposes unevaluatable attribute:

    nix-repl> ronin.gemType
    error:
       … while evaluating the attribute 'gemType'

         at pkgs/development/ruby-modules/bundled-common/default.nix:122:30:

          121|       inherit ruby bundler gems confFiles envPaths;
          122|       inherit (gems.${pname}) gemType;
             |                              ^
          123|

       … while evaluating an attribute name

       error: value is null while a string was expected

After the change `passthru` does not expose a `gemType` if `pname` is
`null`.
---
 pkgs/development/ruby-modules/bundled-common/default.nix | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/pkgs/development/ruby-modules/bundled-common/default.nix b/pkgs/development/ruby-modules/bundled-common/default.nix
index 86c885b52dcb..6aca502550b6 100644
--- a/pkgs/development/ruby-modules/bundled-common/default.nix
+++ b/pkgs/development/ruby-modules/bundled-common/default.nix
@@ -117,9 +117,10 @@ let
 
     meta = { platforms = ruby.meta.platforms; } // meta;
 
-    passthru = rec {
-      inherit ruby bundler gems confFiles envPaths;
+    passthru = (lib.optionalAttrs (pname != null) {
       inherit (gems.${pname}) gemType;
+    } // rec {
+      inherit ruby bundler gems confFiles envPaths;
 
       wrappedRuby = stdenv.mkDerivation {
         name = "wrapped-ruby-${pname'}";
@@ -172,7 +173,7 @@ let
             exit 1
           '';
         };
-    };
+    });
   };
 
   basicEnv =