func exportBucket(b *bolt.Bucket) (*rawMessage, error) {
// Encode individual key/value pairs into raw messages.
var children = make([]*rawMessage, 0)
err := b.ForEach(func(k, v []byte) error {
var err error
// If there is no value then it is a bucket.
if v == nil {
child, err := exportBucket(b.Bucket(k))
if err != nil {
return fmt.Errorf("bucket: %s", err)
}
child.Key = k
children = append(children, child)
return nil
}
// Otherwise it's a regular key.
var child = &rawMessage{Key: k}
if child.Value, err = json.Marshal(v); err != nil {
return fmt.Errorf("value: %s", err)
}
children = append(children, child)
return nil
})
if err != nil {
return nil, err
}
// Encode bucket into a raw message.
var root = rawMessage{Type: "bucket"}
if root.Value, err = json.Marshal(children); err != nil {
return nil, fmt.Errorf("children: %s", err)
}
return &root, nil
}
