seaweedfs/weed/s3api/tags.go

package s3api

import (
	"encoding/xml"
)

type Tag struct {
	Key   string `xml:"Key"`
	Value string `xml:"Value"`
}

type TagSet struct {
	Tag []Tag `xml:"Tag"`
}

type Tagging struct {
	XMLName xml.Name `xml:"Tagging"`
	TagSet  TagSet   `xml:"TagSet"`
	Xmlns   string   `xml:"xmlns,attr"`
}

func (t *Tagging) ToTags() map[string]string {
	output := make(map[string]string)
	for _, tag := range t.TagSet.Tag {
		output[tag.Key] = tag.Value
	}
	return output
}

func FromTags(tags map[string]string) (t *Tagging) {
	t = &Tagging{Xmlns: "http://s3.amazonaws.com/doc/2006-03-01/"}
	for k, v := range tags {
		t.TagSet.Tag = append(t.TagSet.Tag, Tag{
			Key:   k,
			Value: v,
		})
	}
	return
}