From e02396a1c9f5f3ec6a4708d19a93b5e4e865c98d Mon Sep 17 00:00:00 2001
From: William Tan <1284324+Ninja3047@users.noreply.github.com>
Date: Sun, 27 Apr 2025 14:56:33 -0400
Subject: [PATCH] use nixfmt-tree instead of calling the nixfmt-rfc-style
 directly (#2928)

as of nix 2.25.0, `nix fmt` will not automatically recurse through
nix files so `nixfmt-rfc-style` will format from stdin instead.

see: https://github.com/NixOS/nix/pull/11438

this issue https://github.com/NixOS/nixfmt/issues/273 recommends that
we use `nixfmt-tree` which calls `treefmt` in the backend with a
minimal configuration for nix
---
 flake.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/flake.nix b/flake.nix
index 94633f030..3f73da9b3 100644
--- a/flake.nix
+++ b/flake.nix
@@ -248,6 +248,6 @@
           isLLDB = true;
         }
       );
-      formatter = forAllSystems (system: pkgsBySystem.${system}.nixfmt-rfc-style);
+      formatter = forAllSystems (system: pkgsBySystem.${system}.nixfmt-tree);
     };
 }