update definition group

definition/generate/render/render.go

@@ -16,7 +16,7 @@ type Execute func(w io.Writer, vi view.View, rnd Rendering) error
 
 var randders = map[reflect.Type]Execute{
 	reflect.TypeFor[*definition.Definition](): Template(defTpl),
-	reflect.TypeFor[group.Group]():            Template(groupTpl),
+	reflect.TypeFor[*group.Group]():           Template(groupTpl),
 	reflect.TypeFor[option.Option]():          Template(optTpl),
 	reflect.TypeFor[proto.Proto]():            Template(protoTpl),
 }

definition/group/group.go

@@ -8,14 +8,14 @@ import (
 
 var _ config.Group = New("", "")
 
-func New(name, desc string, opts ...config.Option) Group {
+func New(name, desc string, opts ...config.Option) *Group {
 	group := Group{
 		name:   name,
 		opts:   opts,
 		Params: param.New(option.Description(desc)),
 	}
 
-	return group
+	return &group
 }
 
 type Group struct {
@@ -25,10 +25,21 @@ type Group struct {
 	opts []config.Option
 }
 
-func (g Group) Name() string {
+func (g *Group) Name() string {
 	return g.name
 }
 
-func (g Group) Options() []config.Option {
+func (g *Group) Options() []config.Option {
 	return g.opts
 }
+
+func (g *Group) Add(opts ...config.Option) {
+	g.opts = append(g.opts, opts...)
+}
+
+func (g *Group) With(opts ...param.Option) *Group {
+	group := New(g.Name(), "")
+	group.Params = param.Chain(g.Params, param.New(opts...))
+
+	return group
+}

definition/group/group_test.go

@@ -0,0 +1,29 @@
+package group_test
+
+import (
+	"testing"
+
+	"gitoa.ru/go-4devs/config/definition/group"
+	"gitoa.ru/go-4devs/config/definition/option"
+	"gitoa.ru/go-4devs/config/test/require"
+)
+
+func TestGroupAdd(t *testing.T) {
+	t.Parallel()
+
+	var gr group.Group
+
+	gr.Add(group.New("test", "test"))
+	require.Truef(t, len(gr.Options()) == 1, "len(%v) != 1", len(gr.Options()))
+}
+
+func TestGroupWith(t *testing.T) {
+	t.Parallel()
+
+	const descrition = "group description"
+
+	gr := group.New("test", "test desc")
+	gr = gr.With(option.Description(descrition))
+
+	require.Equal(t, descrition, option.DataDescription(gr))
+}