Method ExpireDir

backend/cache/storage_persistent.go:342–372

ExpireDir will flush a CachedDirectory and all its objects from the objects chunks will remain as they are

(cd *Directory)

// ExpireDir will flush a CachedDirectory and all its objects from the objects
// chunks will remain as they are
func (b *Persistent) ExpireDir(cd *Directory) error {
	t := time.Now().Add(time.Duration(-cd.CacheFs.opt.InfoAge))
	cd.CacheTs = &t

	// expire all parents
	return b.db.Update(func(tx *bolt.Tx) error {
		// expire all the parents
		currentDir := cd.abs()
		for { // until we get to the root
			bucket := b.getBucket(currentDir, false, tx)
			if bucket != nil {
				val := bucket.Get([]byte("."))
				if val != nil {
					cd2 := &Directory{CacheFs: cd.CacheFs}
					err := json.Unmarshal(val, cd2)
					if err == nil {
						fs.Debugf(cd, "cache: expired %v", currentDir)
						cd2.CacheTs = &t
						enc2, _ := json.Marshal(cd2)
						_ = bucket.Put([]byte("."), enc2)
					}
				}
			}
			if currentDir == "" {
				break
			}
			currentDir = cleanPath(path.Dir(currentDir))
		}
		return nil
	})
}

// GetObject will return a CachedObject from its parent directory or an error if it doesn't find it
func (b *Persistent) GetObject(cachedObject *Object) (err error) {