Method refresh

backend/cache/object.go:158–166

refresh will check if the object info is expired and request the info from source if it is all these conditions must be true to ignore a refresh 1. cache ts didn't expire yet 2. is not pending a notification from the wrapped fs

(ctx context.Context)

// 1. cache ts didn't expire yet
// 2. is not pending a notification from the wrapped fs
func (o *Object) refresh(ctx context.Context) error {
	isNotified := o.CacheFs.isNotifiedRemote(o.Remote())
	isExpired := time.Now().After(o.CacheTs.Add(time.Duration(o.CacheFs.opt.InfoAge)))
	if !isExpired && !isNotified {
		return nil
	}

	return o.refreshFromSource(ctx, true)
}

// refreshFromSource requests the original FS for the object in case it comes from a cached entry
func (o *Object) refreshFromSource(ctx context.Context, force bool) error {