Go Diff Tricks

GoDiffTricks.md

// ProtoDiff generates an indented summary of the diff between two protos'
// YAML representations. See ProtoToYAML for documentation on rewrites.
func ProtoDiff(a, b protoutil.Message, args DiffArgs, rewrites func(interface{})) string {
	toYAML := func(m protoutil.Message) string {
		if m == nil {
			return ""
		}
		str, err := ProtoToYAML(m, false /* emitDefaults */, rewrites)
		if err != nil {
			panic(err)
		}
		return strings.TrimSpace(str)
	}

	return Diff(toYAML(a), toYAML(b), args)
}