Method ListR

backend/cache/cache.go:1117–1150

ListR lists the objects and directories of the Fs starting from dir recursively into out.

(ctx context.Context, dir string, callback fs.ListRCallback)

// ListR lists the objects and directories of the Fs starting
// from dir recursively into out.
func (f *Fs) ListR(ctx context.Context, dir string, callback fs.ListRCallback) (err error) {
	fs.Debugf(f, "list recursively from '%s'", dir)

	// we check if the source FS supports ListR
	// if it does, we'll use that to get all the entries, cache them and return
	do := f.Fs.Features().ListR
	if do != nil {
		return do(ctx, dir, func(entries fs.DirEntries) error {
			// we got called back with a set of entries so let's cache them and call the original callback
			for _, entry := range entries {
				switch o := entry.(type) {
				case fs.Object:
					_ = f.cache.AddObject(ObjectFromOriginal(ctx, f, o))
				case fs.Directory:
					_ = f.cache.AddDir(DirectoryFromOriginal(ctx, f, o))
				default:
					return fmt.Errorf("unknown object type %T", entry)
				}
			}

			// call the original callback
			return callback(entries)
		})
	}

	// if we're here, we're gonna do a standard recursive traversal and cache everything
	list := list.NewHelper(callback)
	err = f.recurse(ctx, dir, list)
	if err != nil {
		return err
	}

	return list.Flush()
}

// Mkdir makes the directory (container, bucket)
func (f *Fs) Mkdir(ctx context.Context, dir string) error {