fix: update the aliases when OptProxy sets the aliases

opt_proxy.go

@@ -64,7 +64,9 @@ func (o *OptProxy) IsCli(cli bool) *OptProxy {
 
 // Aliases appends the aliases of the option and returns itself.
 func (o *OptProxy) Aliases(aliases ...string) *OptProxy {
-	o.option.opt = o.option.opt.As(aliases...)
+	for _, alias := range aliases {
+		o.config.setOptAlias(alias, o.option.opt.Name)
+	}
 	return o
 }
 

opt_proxy_test.go

@@ -289,3 +289,19 @@ func TestOptProxyOnUpdate(t *testing.T) {
 		t.Errorf("expect '%s', but got '%s'", expect, s)
 	}
 }
+
+func TestOptProxyAliases(t *testing.T) {
+	config := New()
+	opt := config.NewString("newopt", "abc", "help").Aliases("oldopt")
+
+	if v := opt.Get(); v != "abc" {
+		t.Errorf("expect '%s', but got '%s'", "abc", v)
+	}
+
+	err := config.Set("oldopt", "xyz")
+	if err != nil {
+		t.Error(err)
+	} else if v := opt.Get(); v != "xyz" {
+		t.Errorf("expect '%s', but got '%s'", "xyz", v)
+	}
+}