// mustContainKeys checks that a bucket contains a given set of keys.
func mustContainKeys(b *bolt.Bucket, m map[string]string) {
found := make(map[string]string)
b.ForEach(func(k, _ []byte) error {
found[string(k)] = ""
return nil
})
// Check for keys found in bucket that shouldn't be there.
var keys []string
for k, _ := range found {
if _, ok := m[string(k)]; !ok {
keys = append(keys, k)
}
}
if len(keys) > 0 {
sort.Strings(keys)
panic(fmt.Sprintf("keys found(%d): %s", len(keys), strings.Join(keys, ",")))
}
// Check for keys not found in bucket that should be there.
for k, _ := range m {
if _, ok := found[string(k)]; !ok {
keys = append(keys, k)
}
}
if len(keys) > 0 {
sort.Strings(keys)
panic(fmt.Sprintf("keys not found(%d): %s", len(keys), strings.Join(keys, ",")))
}
}
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
}
func importBucket(b *bolt.Bucket, children []*rawMessage) error {
// Decode each message into a key/value pair.
for _, child := range children {
// Bucket messages are handled recursively.
if child.Type == "bucket" {
// Create the bucket if it doesn't exist.
subbucket, err := b.CreateBucketIfNotExists(child.Key)
if err != nil {
return fmt.Errorf("create bucket: %s", err)
}
// Decode child messages.
var subchildren []*rawMessage
if err := json.Unmarshal(child.Value, &subchildren); err != nil {
return fmt.Errorf("decode children: %s", err)
}
// Import subbucket.
if err := importBucket(subbucket, subchildren); err != nil {
return fmt.Errorf("import bucket: %s", err)
}
continue
}
// Non-bucket values are decoded from base64.
var value []byte
if err := json.Unmarshal(child.Value, &value); err != nil {
return fmt.Errorf("decode value: %s", err)
}
// Insert key/value into bucket.
if err := b.Put(child.Key, value); err != nil {
return fmt.Errorf("put: %s", err)
}
}
return nil
}