From 4841bc922669591862814034e3f83bb6dae684f3 Mon Sep 17 00:00:00 2001
From: Solomon Hykes <solomon@docker.com>
Date: Tue, 25 Mar 2014 18:19:20 -0700
Subject: [PATCH] beam/data: convenience Message.Pretty() function

Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
---
 beam/data/message.go | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/beam/data/message.go b/beam/data/message.go
index b35d880..e7112c7 100644
--- a/beam/data/message.go
+++ b/beam/data/message.go
@@ -1,6 +1,8 @@
 package data
 
 import (
+	"fmt"
+	"strings"
 )
 
 type Message string
@@ -54,6 +56,18 @@ func (m Message) Get(k string) []string {
 	return v
 }
 
+func (m Message) Pretty() string {
+	data, err := Decode(string(m))
+	if err != nil {
+		return ""
+	}
+	entries := make([]string, 0, len(data))
+	for k, values := range data {
+		entries = append(entries, fmt.Sprintf("%s=%s", k, strings.Join(values, ",")))
+	}
+	return strings.Join(entries, "\n")
+}
+
 func (m Message) String() string {
 	return string(m)
 }