From 16f82f0b52bf9252ae64ec4cdb152e4e743045df Mon Sep 17 00:00:00 2001
From: Moritz Angermann <moritz.angermann@gmail.com>
Date: Wed, 9 Oct 2024 08:02:46 +0900
Subject: [PATCH] Fix python build failures for the -env.

Querying the .drvPath causes nix to try and build

arp-util, python3.11-setuptools, setuptools-build-hook, scons, serf, llvm, clang, libredirect, subversion, and openssh.
---
 flake.nix | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/flake.nix b/flake.nix
index 5cd7149..4fac0db 100644
--- a/flake.nix
+++ b/flake.nix
@@ -187,12 +187,15 @@
             } "touch  $out";
           } // (pkgs.lib.mapAttrs' (name: drv:
             pkgs.lib.nameValuePair "${name}-env" (
+            # We need to use unsafeDiscardOutputDependency here, as it will otherwise
+            # pull in a bunch of dependenceis we don't care about at all from the .drvPath
+            # query.
             let env = pkgs.runCommand "${name}-env.sh" {
                 requiredSystemFeatures = [ "recursive-nix" ];
                 nativeBuildInputs = [ pkgs.nix ];
               } ''
               nix --offline --extra-experimental-features "nix-command flakes" \
-                print-dev-env ${drv.drvPath} >> $out
+                print-dev-env ${builtins.unsafeDiscardOutputDependency drv.drvPath} >> $out
             '';
             # this needs to be linux.  It would be great if we could have this
             # eval platform agnostic, but flakes don't permit this.  A the