From 80b4305e60c0295b9dd8ad6652aeb1a569705557 Mon Sep 17 00:00:00 2001
From: Jake Hillion <jake@hillion.co.uk>
Date: Fri, 1 Mar 2024 14:44:23 +0000
Subject: [PATCH] scripts: add update_nixpkgs

add simple script to update nix shell/run nixpkgs to match flake
nixpkgs-unstable input. this avoids having it set to the default of
nixpkgs-unstable and downloading 30MB tarballs all the time.
---
 scripts/update_nixpkgs.sh | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100755 scripts/update_nixpkgs.sh

diff --git a/scripts/update_nixpkgs.sh b/scripts/update_nixpkgs.sh
new file mode 100755
index 0000000..64d81c8
--- /dev/null
+++ b/scripts/update_nixpkgs.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+set -xe
+
+VERSION=`curl https://gitea.hillion.co.uk/JakeHillion/nixos/raw/branch/main/flake.lock | nix run nixpkgs#jq -- -r '.nodes."nixpkgs-unstable".locked.rev'`
+nix registry add nixpkgs "github:NixOS/nixpkgs/${VERSION}"