From 515d252eb3c382e0ecc6c8158a6a75f191da3f2a Mon Sep 17 00:00:00 2001
From: Sander <hey@sandydoo.me>
Date: Tue, 20 Aug 2024 12:24:12 +0000
Subject: [PATCH] fix: switch nixfmt to nixfmt-classic

---
 modules/hooks.nix | 2 +-
 nix/tools.nix     | 8 +++++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/modules/hooks.nix b/modules/hooks.nix
index 480f0262..2c21ae8a 100644
--- a/modules/hooks.nix
+++ b/modules/hooks.nix
@@ -2861,7 +2861,7 @@ lib.escapeShellArgs (lib.concatMap (ext: [ "--ghc-opt" "-X${ext}" ]) hooks.ormol
         {
           name = "nixfmt";
           description = "Nix code prettifier.";
-          package = tools.nixfmt;
+          package = tools.nixfmt-classic;
           entry = "${hooks.nixfmt.package}/bin/nixfmt ${lib.optionalString (hooks.nixfmt.settings.width != null) "--width=${toString hooks.nixfmt.settings.width}"}";
           files = "\\.nix$";
         };
diff --git a/nix/tools.nix b/nix/tools.nix
index 83528ae0..c3eb9d92 100644
--- a/nix/tools.nix
+++ b/nix/tools.nix
@@ -45,6 +45,8 @@
 , mdsh
 , nil
 , nixfmt
+, nixfmt-classic ? null
+, nixfmt-rfc-style ? null
 , nixpkgs-fmt
 , nodePackages
 , ocamlPackages
@@ -131,7 +133,6 @@ in
     mdl
     mdsh
     nil
-    nixfmt
     nixpkgs-fmt
     ormolu
     pre-commit-hook-ensure-sops
@@ -201,4 +202,9 @@ in
   checkmake = if stdenv.isLinux || checkmake.version >= "0.2.2" then checkmake else null;
 
   headache = callPackage ./headache { };
+
+  # nixfmt was renamed to nixfmt-classic in 24.05.
+  # nixfmt may be replaced by nixfmt-rfc-style in the future.
+  nixfmt = if nixfmt-classic == null then nixfmt else nixfmt-classic;
+  inherit nixfmt-classic nixfmt-rfc-style;
 }