treewide: nixfmt-rfc-style -> nixfmt

Except:
- Instances in documentation, because people in older versions
  can't switch to nixfmt yet due to it having pointed to nixfmt-classic
  before
- In code that runs based on a CI Nixpkgs version, which is also a bit
  older still
- In update script shebangs, because many of them don't pin Nixpkgs, and run
  with whatever is in NIX_PATH (and it's not easy to fix this, see
  https://github.com/NixOS/nixpkgs/issues/425551)

ci/default.nix

@@ -49,7 +49,7 @@ let
 
         programs.keep-sorted.enable = true;
 
-        # This uses nixfmt-rfc-style underneath,
+        # This uses nixfmt underneath,
         # the default formatter for Nix code.
         # See https://github.com/NixOS/nixfmt
         programs.nixfmt.enable = true;

maintainers/scripts/auto-rebase/test/default.nix

@@ -9,7 +9,7 @@ let
     stdenvNoCC
     gitMinimal
     treefmt
-    nixfmt-rfc-style
+    nixfmt
     ;
 in
 
@@ -27,7 +27,7 @@ stdenvNoCC.mkDerivation {
   nativeBuildInputs = [
     gitMinimal
     treefmt
-    nixfmt-rfc-style
+    nixfmt
   ];
   patchPhase = ''
     patchShebangs .

pkgs/applications/editors/emacs/elisp-packages/emacs2nix.nix

@@ -13,7 +13,7 @@ pkgs.mkShell {
 
   packages = [
     pkgs.bash
-    pkgs.nixfmt-rfc-style
+    pkgs.nixfmt
   ];
 
   EMACS2NIX = src;

pkgs/build-support/dotnet/add-nuget-deps/default.nix

@@ -5,7 +5,7 @@
   lib,
   replaceVarsWith,
   nuget-to-nix,
-  nixfmt-rfc-style,
+  nixfmt,
   nuget-to-json,
   cacert,
   fetchNupkg,
@@ -90,7 +90,7 @@ attrs
             replacements = {
               binPath = lib.makeBinPath [
                 nuget-to-nix
-                nixfmt-rfc-style
+                nixfmt
                 nuget-to-json
               ];
             };

pkgs/build-support/vm/default.nix

@@ -909,7 +909,7 @@ rec {
         nativeBuildInputs = [
           buildPackages.perl
           buildPackages.dpkg
-          buildPackages.nixfmt-rfc-style
+          buildPackages.nixfmt
         ];
       }
       ''

pkgs/by-name/el/elm-land/package.nix

@@ -7,7 +7,7 @@
   writeShellScript,
   nix-update,
   elm2nix,
-  nixfmt-rfc-style,
+  nixfmt,
 }:
 
 buildNpmPackage rec {
@@ -53,7 +53,7 @@ buildNpmPackage rec {
     cp "$(nix-build -A "$UPDATE_NIX_ATTR_PATH".src)/projects/cli/src/codegen/elm.json" elm.json
     trap 'rm -rf elm.json registry.dat &> /dev/null' EXIT
     ${lib.getExe elm2nix} convert > pkgs/by-name/el/elm-land/elm-srcs.nix
-    ${lib.getExe nixfmt-rfc-style} pkgs/by-name/el/elm-land/elm-srcs.nix
+    ${lib.getExe nixfmt} pkgs/by-name/el/elm-land/elm-srcs.nix
     ${lib.getExe elm2nix} snapshot
     cp registry.dat pkgs/by-name/el/elm-land/registry.dat
   '';

pkgs/by-name/li/livekit-libwebrtc/gclient2nix.nix

@@ -8,7 +8,7 @@
   nix-prefetch-git,
   nix,
   coreutils,
-  nixfmt-rfc-style,
+  nixfmt,
   makeWrapper,
 }:
 # Based on https://github.com/milahu/gclient2nix
@@ -19,7 +19,7 @@ let
     nix-prefetch-git
     nix
     coreutils
-    nixfmt-rfc-style
+    nixfmt
   ];
 in
 buildPythonPackage {

pkgs/by-name/ni/nil/package.nix

@@ -3,7 +3,7 @@
   rustPlatform,
   fetchFromGitHub,
   nix,
-  nixfmt-rfc-style,
+  nixfmt,
   nix-update-script,
 }:
 
@@ -25,7 +25,7 @@ rustPlatform.buildRustPackage rec {
 
   env = {
     CFG_RELEASE = version;
-    CFG_DEFAULT_FORMATTER = lib.getExe nixfmt-rfc-style;
+    CFG_DEFAULT_FORMATTER = lib.getExe nixfmt;
   };
 
   # might be related to https://github.com/NixOS/nix/issues/5884

pkgs/by-name/ni/nixfmt-tree/package.nix

@@ -2,14 +2,14 @@
   lib,
   runCommand,
   treefmt,
-  nixfmt-rfc-style,
+  nixfmt,
   nixfmt-tree,
   git,
   writableTmpDirAsHomeHook,
 
   settings ? { },
   runtimeInputs ? [ ],
-  nixfmtPackage ? nixfmt-rfc-style,
+  nixfmtPackage ? nixfmt,
 
   # NOTE: `runtimePackages` is deprecated. Use `nixfmtPackage` and/or `runtimeInputs`.
   runtimePackages ? [ nixfmtPackage ],

pkgs/by-name/tr/treefmt/tests.nix

@@ -3,7 +3,7 @@
   runCommand,
   testers,
   treefmt,
-  nixfmt-rfc-style,
+  nixfmt,
 }:
 let
   inherit (treefmt) buildConfig withConfig;
@@ -29,7 +29,7 @@ let
 
   nixfmtExamplePackage = withConfig {
     settings = nixfmtExampleConfig;
-    runtimeInputs = [ nixfmt-rfc-style ];
+    runtimeInputs = [ nixfmt ];
   };
 in
 {

pkgs/development/ruby-modules/bundler-update-script/default.nix

@@ -7,7 +7,7 @@
   coreutils,
   git,
   nix,
-  nixfmt-rfc-style,
+  nixfmt,
 }:
 
 attrPath:
@@ -22,7 +22,7 @@ let
         coreutils
         git
         nix
-        nixfmt-rfc-style
+        nixfmt
       ]
     }
     set -o errexit

pkgs/development/tools/build-managers/rebar3/default.nix

@@ -12,7 +12,7 @@
   git,
   gnused,
   nix,
-  nixfmt-rfc-style,
+  nixfmt,
   rebar3-nix,
 }:
 
@@ -95,7 +95,7 @@ let
           git
           gnused
           nix
-          nixfmt-rfc-style
+          nixfmt
           (rebar3WithPlugins { globalPlugins = [ rebar3-nix ]; })
         ]
       }

pkgs/servers/mobilizon/default.nix

@@ -8,7 +8,7 @@
   git,
   cmake,
   nixosTests,
-  nixfmt-rfc-style,
+  nixfmt,
   mobilizon-frontend,
   ...
 }:
@@ -145,7 +145,7 @@ mixRelease rec {
       set -eou pipefail
 
       ${lib.getExe mix2nix} '${src}/mix.lock' > pkgs/servers/mobilizon/mix.nix
-      ${lib.getExe nixfmt-rfc-style} pkgs/servers/mobilizon/mix.nix
+      ${lib.getExe nixfmt} pkgs/servers/mobilizon/mix.nix
     '';
     elixirPackage = beamPackages.elixir;
   };

pkgs/tools/typesetting/tex/texlive/default.nix

@@ -43,7 +43,7 @@
   makeFontsConf,
   useFixedHashes ? true,
   recurseIntoAttrs,
-  nixfmt-rfc-style,
+  nixfmt,
 }:
 let
   stdenv = gcc12Stdenv;
@@ -151,7 +151,7 @@ let
         tl2nix = ./tl2nix.sed;
       }
       ''
-        xzcat "$tlpdbxz" | sed -rn -f "$tl2nix" | uniq | ${lib.getExe nixfmt-rfc-style} > "$out"
+        xzcat "$tlpdbxz" | sed -rn -f "$tl2nix" | uniq | ${lib.getExe nixfmt} > "$out"
       '';
 
   # map: name -> fixed-output hash

pkgs/top-level/release-haskell.nix

@@ -346,7 +346,7 @@ let
         nix-script
         nix-tree
         nixfmt-classic
-        nixfmt-rfc-style
+        nixfmt
         nota
         nvfetcher
         oama