feat: Create different hooks for Terraform and OpenTofu format

Author: sestrella

modules/hooks.nix

@@ -3632,9 +3632,26 @@ lib.escapeShellArgs (lib.concatMap (ext: [ "--ghc-opt" "-X${ext}" ]) hooks.ormol
       terraform-format =
         {
           name = "terraform-format";
-          description = "Format terraform (`.tf`) files.";
-          package = tools.terraform-fmt;
-          entry = "${hooks.terraform-format.package}/bin/terraform-fmt";
+          description = "Format Terraform (`.tf`) files.";
+          package = tools.opentofu;
+          entry =
+            let
+              terraform-fmt = pkgs.writeScriptBin "terraform-fmt" ''
+                #!/usr/bin/env bash
+
+                opentofu_or_terraform() {
+                  local bin_dir=${hooks.terraform-format.package}
+                  if [ -f "''${bin_dir}/bin/tofu" ]; then
+                    ''${bin_dir}/bin/tofu "$@"
+                  else
+                    ''${bin_dir}/bin/terraform "$@"
+                  fi
+                }
+
+                opentofu_or_terraform fmt -check -diff "$@"
+              '';
+            in
+            "${terraform-fmt}/bin/terraform-fmt";
           files = "\\.tf$";
         };
       terraform-validate =

nix/terraform-fmt/default.nix

@@ -51,6 +51,7 @@
 , nodePackages
 , ocamlPackages
 , opam
+, opentofu
 , ormolu
 , pkgsBuildBuild
 , poetry
@@ -137,6 +138,7 @@ in
     mdsh
     nil
     nixpkgs-fmt
+    opentofu
     ormolu
     pre-commit-hook-ensure-sops
     poetry
@@ -185,7 +187,6 @@ in
   hpack-dir = callPackage ./hpack-dir { };
   hunspell = callPackage ./hunspell { };
   purty = callPackage ./purty { purty = nodePackages.purty; };
-  terraform-fmt = callPackage ./terraform-fmt { };
   terraform-validate = callPackage ./terraform-validate { };
   tflint = callPackage ./tflint { };
   dune-build-opam-files = callPackage ./dune-build-opam-files { dune = dune_3; inherit (pkgsBuildBuild) ocaml; };