func New(path, fsName string) (*BlobStore, error) {
if path == "" {
path = filepath.Join(pathutil.VarDir(), "blobfs", "blobstore")
}
bs := &BlobStore{path: path, fs: fsName}
if err := os.MkdirAll(filepath.Join(path, fsName), 0700); err != nil {
return nil, err
}
return bs, nil
}
func (bs *BlobStore) Stat(hash string) (bool, error) {
f, err := os.Open(filepath.Join(pathutil.VarDir(), "blobfs", "blobstore", bs.fs, hash[0:2], hash))
defer f.Close()
switch {
case err == nil:
return true, nil
case os.IsNotExist(err):
return false, nil
default:
return false, err
}
}
func (bs *BlobStore) Get(hash string) ([]byte, error) {
blob, err := ioutil.ReadFile(filepath.Join(pathutil.VarDir(), "blobfs", "blobstore", bs.fs, hash[0:2], hash))
switch {
case err == nil:
return blob, nil
case os.IsNotExist(err):
return nil, ErrBlobNotFound
default:
return nil, err
}
}
func (bs *BlobStore) Remove(hash string) error {
return os.Remove(filepath.Join(pathutil.VarDir(), "blobfs", "blobstore", bs.fs, hash[0:2], hash))
}
func (bs *BlobStore) Put(hash string, data []byte) error {
if err := os.MkdirAll(filepath.Join(pathutil.VarDir(), "blobfs", "blobstore", bs.fs, hash[0:2]), 0700); err != nil {
return err
}
return ioutil.WriteFile(filepath.Join(pathutil.VarDir(), "blobfs", "blobstore", bs.fs, hash[0:2], hash), data, 0644)
}
func (bs *BlobStore) Iter(walkFunc func(string, string, error) error) error {
return filepath.Walk(filepath.Join(pathutil.VarDir(), "blobfs", "blobstore", bs.fs), bs.iter(walkFunc))
}