From 1ac3777302a83db974dce66e5e1a0a709b924170 Mon Sep 17 00:00:00 2001
From: Luc Perkins <lucperkins@gmail.com>
Date: Mon, 16 Oct 2023 17:17:33 +0300
Subject: [PATCH] Provide backup tarball URL in shell.nix

Co-authored-by: Graham Christensen <graham@grahamc.com>
---
 assets/shell.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/assets/shell.nix b/assets/shell.nix
index 1c485cec..942ce016 100644
--- a/assets/shell.nix
+++ b/assets/shell.nix
@@ -2,7 +2,7 @@
   (
     let lock = builtins.fromJSON (builtins.readFile ./flake.lock); in
     fetchTarball {
-      url = lock.nodes.flake-compat.locked.url;
+      url = lock.nodes.flake-compat.locked.url or "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
       sha256 = lock.nodes.flake-compat.locked.narHash;
     }
   )