From 528814ac52d81cdf5de267937eb92fca05611cfb Mon Sep 17 00:00:00 2001
From: Malte Tammena <malte.tammena@pm.me>
Date: Sun, 10 Mar 2024 21:15:13 +0100
Subject: [PATCH] feat: add lib infrastructure and test it with version check

---
 flake.nix                               | 2 ++
 hosts/cerithium-telescopium/default.nix | 4 ++--
 lib/default.nix                         | 3 +++
 3 files changed, 7 insertions(+), 2 deletions(-)
 create mode 100644 lib/default.nix

diff --git a/flake.nix b/flake.nix
index 91bbdf0..524b48a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -181,6 +181,8 @@
         };
       in
         builtins.listToAttrs (builtins.map genSystem listOfHosts);
+      # Additional library functions
+      flake.lib = (builtins.import ./lib) {inherit (inputs.nixpkgs) lib;};
       # Iso for USB
       flake.packages.x86_64-linux.iso = inputs.self.nixosConfigurations.radix-balthica.config.system.build.isoImage;
       # VM for testing
diff --git a/hosts/cerithium-telescopium/default.nix b/hosts/cerithium-telescopium/default.nix
index 561b5b4..35bf939 100644
--- a/hosts/cerithium-telescopium/default.nix
+++ b/hosts/cerithium-telescopium/default.nix
@@ -1,6 +1,6 @@
 {
   pkgs,
-  lib,
+  inputs,
   ...
 }: {
   imports = [
@@ -27,7 +27,7 @@
     '';
     services.xserver.desktopManager.kodi.package = let
       youtubePlugin = pkgs.kodiPackages.youtube.overrideAttrs (old: rec {
-        version = lib.throwIf (lib.versionOlder hashes.youtubePlugin.version old.version) "Youtube Plugin override outdated" hashes.youtubePlugin.version;
+        version = inputs.self.lib.versionIfNewer hashes.youtubePlugin.version old.version "Youtube Plugin override outdated";
 
         src = pkgs.fetchFromGitHub {
           inherit (hashes.youtubePlugin) hash;
diff --git a/lib/default.nix b/lib/default.nix
new file mode 100644
index 0000000..d336efe
--- /dev/null
+++ b/lib/default.nix
@@ -0,0 +1,3 @@
+{lib, ...}: {
+  versionIfNewer = newVersion: oldVersion: message: lib.throwIf (lib.versionOlder newVersion oldVersion) message newVersion;
+}