Custom unmarshalling with support for known fields

[ivankatliarchuk]

I have something like this

in our code

func (t *TestJob) UnmarshalYAML(node *yaml.Node) error {
	type alias TestJob
	dataAlias := (*alias)(t)

	err := node.Decode(&dataAlias)
	if err != nil {
		return err
	}
	t.SetCapabilities()
	return nil
}

func Unmarshalling() {
  suite := TestSuite{
    chartRoute: chartRoute,
    fromRender: fromRender,
  }

  yamlDecoder := yaml.NewDecoder(strings.NewReader(content)) 
  yamlDecoder.KnownFields(true)

   if err := yamlDecoder.Decode(&suite); err != nil {
      return &suite, err
   }
}

Related #602 (comment)
So there is no way to throw an error in custom unmarshaller if there is an unknown field.

[ivankatliarchuk]

Hi @niemeyer would you access a pull request or project is no longer maintained?