Method Update

backend/memory/memory.go:651–676

Update the object with the contents of the io.Reader, modTime and size The new object may have been created if an error is returned

(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption)

//
// The new object may have been created if an error is returned
func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (err error) {
	bucket, bucketPath := o.split()
	var data []byte
	var size int64
	var hash string
	if o.fs.opt.Discard {
		h := md5.New()
		size, err = io.Copy(h, in)
		hash = hex.EncodeToString(h.Sum(nil))
	} else {
		data, err = io.ReadAll(in)
		size = int64(len(data))
	}
	if err != nil {
		return fmt.Errorf("failed to update memory object: %w", err)
	}
	o.od = &objectData{
		data:     data,
		size:     size,
		hash:     hash,
		modTime:  src.ModTime(ctx),
		mimeType: fs.MimeType(ctx, src),
	}
	buckets.updateObjectData(bucket, bucketPath, o.od)
	return nil
}

// Remove an object
func (o *Object) Remove(ctx context.Context) error {