From cda23f29f46b7573e0246d6b994437def0248164 Mon Sep 17 00:00:00 2001
From: Zhao Xiaojie <LinuxSuRen@gmail.com>
Date: Thu, 27 Jun 2019 10:32:55 +0800
Subject: [PATCH] Add format function

---
 app/cmd/common.go | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 app/cmd/common.go

diff --git a/app/cmd/common.go b/app/cmd/common.go
new file mode 100644
index 0000000..ea4803d
--- /dev/null
+++ b/app/cmd/common.go
@@ -0,0 +1,27 @@
+package cmd
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"gopkg.in/yaml.v2"
+)
+
+type OutputOption struct {
+	Format string
+}
+
+const (
+	JsonOutputFormat string = "json"
+	YAMLOutputFormat string = "yaml"
+)
+
+func Format(obj interface{}, format string) (data []byte, err error) {
+	if format == JsonOutputFormat {
+		return json.MarshalIndent(obj, "", "  ")
+	} else if format == YAMLOutputFormat {
+		return yaml.Marshal(obj)
+	}
+
+	return nil, fmt.Errorf("not support format %s", format)
+}
-- 
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