De-vendor nixfmt

Change-Id: I1a051be495318a507d07f6d0a6b157616e26774c

flake.nix

@@ -140,10 +140,7 @@
                     system = crossSystem;
                   }
                   // lib.optionalAttrs (crossSystem == "x86_64-freebsd") { useLLVM = true; };
-              overlays = [
+              overlays = [ (overlayFor (p: p.${stdenv})) ];
-                (overlayFor (p: p.${stdenv}))
-                (final: prev: { nixfmt = final.callPackage ./nix-support/nixfmt.nix { }; })
-              ];
             };
           stdenvs = forAllStdenvs (make-pkgs null);
           native = stdenvs.stdenvPackages;

misc/pre-commit.nix

@@ -106,7 +106,7 @@ pre-commit-run {
     };
     treefmt = {
       enable = true;
-      settings.formatters = [ pkgs.nixfmt ];
+      settings.formatters = [ pkgs.nixfmt-rfc-style ];
     };
   };
 }

nix-support/nixfmt.nix

@@ -1,65 +0,0 @@
-# Copy of `nixfmt-rfc-style` vendored from `nixpkgs` master:
-# https://github.com/NixOS/nixpkgs/blob/ab6071eb54cc9b66dda436111d4f569e4e56cbf4/pkgs/by-name/ni/nixfmt-rfc-style/package.nix
-{
-  haskell,
-  haskellPackages,
-  fetchFromGitHub,
-}:
-let
-  inherit (haskell.lib.compose) justStaticExecutables;
-  raw-pkg = haskellPackages.callPackage (
-    {
-      mkDerivation,
-      base,
-      cmdargs,
-      directory,
-      fetchzip,
-      filepath,
-      lib,
-      megaparsec,
-      mtl,
-      parser-combinators,
-      safe-exceptions,
-      scientific,
-      text,
-      transformers,
-      unix,
-    }:
-    mkDerivation {
-      pname = "nixfmt";
-      version = "0.6.0-unstable-2024-03-14";
-      src = fetchFromGitHub {
-        owner = "serokell";
-        repo = "nixfmt";
-        rev = "8d13b593fa8d8d6e5075f541f3231222a08e84df";
-        hash = "sha256-HtXvzmfN4wk45qiKZ7V+/5WBV7jnTHfd7iBwF4XGl64=";
-      };
-      isLibrary = true;
-      isExecutable = true;
-      libraryHaskellDepends = [
-        base
-        megaparsec
-        mtl
-        parser-combinators
-        scientific
-        text
-        transformers
-      ];
-      executableHaskellDepends = [
-        base
-        cmdargs
-        directory
-        filepath
-        safe-exceptions
-        text
-        unix
-      ];
-      jailbreak = true;
-      homepage = "https://github.com/serokell/nixfmt";
-      description = "An opinionated formatter for Nix";
-      license = lib.licenses.mpl20;
-      mainProgram = "nixfmt";
-    }
-  ) { };
-in
-justStaticExecutables raw-pkg

package.nix

@@ -396,7 +396,7 @@ stdenv.mkDerivation (finalAttrs: {
         glibcLocales,
         just,
         llvmPackages,
-        nixfmt,
+        nixfmt-rfc-style,
         skopeo,
         xonsh,
 
@@ -457,7 +457,7 @@ stdenv.mkDerivation (finalAttrs: {
               # docker image tool
               skopeo
               just
-              nixfmt
+              nixfmt-rfc-style
               # Included above when internalApiDocs is true, but we set that to
               # false intentionally to save dev build time.
               # To build them in a dev shell, you can set -Dinternal-api-docs=enabled when configuring.