func walkBucket(parent *bolt.Bucket, k []byte, v []byte, w io.Writer) error {
if _, err := fmt.Fprintf(w, "%d:%x=%x\n", parent.Sequence(), k, v); err != nil {
return err
}
// not a bucket, exit.
if v != nil {
return nil
}
return parent.ForEach(func(k, v []byte) error {
if v == nil {
return walkBucket(parent.Bucket(k), k, nil, w)
}
return walkBucket(parent, k, v, w)
})
}
func (cmd *CompactCommand) walkBucket(b *bolt.Bucket, keypath [][]byte, k, v []byte, seq uint64, fn walkFunc) error {
// Execute callback.
if err := fn(keypath, k, v, seq); err != nil {
return err
}
// If this is not a bucket then stop.
if v != nil {
return nil
}
// Iterate over each child key/value.
keypath = append(keypath, k)
return b.ForEach(func(k, v []byte) error {
if v == nil {
bkt := b.Bucket(k)
return cmd.walkBucket(bkt, keypath, k, nil, bkt.Sequence(), fn)
}
return cmd.walkBucket(b, keypath, k, v, b.Sequence(), fn)
})
}