From 2369b7fc4fc6bab6c85a3f2feb36d68d63926406 Mon Sep 17 00:00:00 2001
From: Matt Sturgeon <matt@sturgeon.me.uk>
Date: Mon, 7 Jul 2025 16:48:10 +0100
Subject: [PATCH] ci/version-info: correctly set NIX_PATH instead of flake
 registries

Flake registries and include paths are not the same thing.

`<nixpkgs>` looks for nixpkgs on the include path, set by `NIX_PATH` and
`--include`. However `--inputs-from` adds inputs to the flake registry,
not the include path.
---
 ci/version-info/default.nix | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ci/version-info/default.nix b/ci/version-info/default.nix
index 94fdd92c..e11c0e4c 100644
--- a/ci/version-info/default.nix
+++ b/ci/version-info/default.nix
@@ -1,5 +1,6 @@
 {
   lib,
+  path,
   callPackage,
   writeShellApplication,
   stdenv,
@@ -15,6 +16,7 @@ writeShellApplication {
     NIX_CONFIG = ''
       experimental-features = nix-command flakes pipe-operators
     '';
+    NIX_PATH = "nixpkgs=${toString path}";
   };
 
   text = ''
@@ -23,7 +25,6 @@ writeShellApplication {
 
     # Use channels.nix to build channels.toml
     nix build --impure \
-      --inputs-from ${toString ../..} \
       --file ${./supported-versions.nix} \
       --argstr system ${stdenv.hostPlatform.system} \
       --arg-from-file channelsJSON channels.json \