nixos/nginx: add option typesHashMaxSize

  ''));

  commonHttpConfig = ''

      # Load mime types.

      # Load mime types and configure maximum size of the types hash tables.

      include ${cfg.defaultMimeTypes};

      # When recommendedOptimisation is disabled nginx fails to start because the mailmap mime.types database

      # contains 1026 entries and the default is only 1024. Setting to a higher number to remove the need to

      # overwrite it because nginx does not allow duplicated settings.

      types_hash_max_size 4096;

      types_hash_max_size ${toString cfg.typesHashMaxSize};

      include ${cfg.package}/conf/fastcgi.conf;

      include ${cfg.package}/conf/uwsgi_params;

          '';

      };

      typesHashMaxSize = mkOption {

        type = types.ints.positive;

        default = if cfg.defaultMimeTypes == "${pkgs.mailcap}/etc/nginx/mime.types" then 2688 else 1024;

        defaultText = literalExpression ''if cfg.defaultMimeTypes == "''${pkgs.mailcap}/etc/nginx/mime.types" then 2688 else 1024'';

        description = ''

          Sets the maximum size of the types hash tables (`types_hash_max_size`).

          It is recommended that the minimum size possible size is used.

          If {option}`recommendedOptimisation` is disabled, nginx would otherwise

          fail to start since the mailmap `mime.types` database has more entries

          than the nginx default value 1024.

        '';

      };

      proxyCachePath = mkOption {

        type = types.attrsOf (types.submodule ({ ... }: {

          options = {