treefmt.withConfig: define pname & propagate all files using symlinkJoin (#491479)

    internal = true;

  };

  config.result =

    pkgs.runCommand config.name

      {

  config.result = pkgs.symlinkJoin {

    pname = config.name;

    inherit (config.package) meta version;

    nativeBuildInputs = [ pkgs.makeBinaryWrapper ];

    paths = [ config.package ];

    env = {

      inherit (config) configFile;

      binPath = lib.makeBinPath config.runtimeInputs;

      inherit (config) runtimeInputs;

      inherit config options;

    };

        inherit (config.package) meta version;

      }

      ''

        mkdir -p $out/bin

        makeWrapper \

          ${lib.getExe config.package} \

          $out/bin/treefmt \

    postBuild = ''

      wrapProgram "$out/bin/treefmt" \

        --prefix PATH : "$binPath" \

        --add-flags "--config-file $configFile"

    '';

  };

}