file_snapshot.go
func (s *FileSnapshotSink) finalize() error {
	// Flush any remaining data
	if err := s.buffered.Flush(); err != nil {
		return err
	}

	// Sync to force fsync to disk
	if err := s.stateFile.Sync(); err != nil {
		return err
	}

	// Get the file size
	stat, statErr := s.stateFile.Stat()

	// Close the file
	if err := s.stateFile.Close(); err != nil {
		return err
	}

	// Set the file size, check after we close
	if statErr != nil {
		return statErr
	}
	s.meta.Size = stat.Size()

	// Set the CRC
	s.meta.CRC = s.stateHash.Sum(nil)
	return nil
}
func (s *FileSnapshotSink) finalize() error {
	// Flush any remaining data
	if err := s.buffered.Flush(); err != nil {
		return err
	}

	// Sync to force fsync to disk
	if err := s.stateFile.Sync(); err != nil {
		return err
	}

	// Get the file size
	stat, statErr := s.stateFile.Stat()

	// Close the file
	if err := s.stateFile.Close(); err != nil {
		return err
	}

	// Set the file size, check after we close
	if statErr != nil {
		return statErr
	}
	s.meta.Size = stat.Size()

	// Set the CRC
	s.meta.CRC = s.stateHash.Sum(nil)
	return nil
}
// finalize is used to close all of our resources.