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mirror of https://github.com/octoleo/restic.git synced 2024-11-04 12:34:13 +00:00

Remove BlobWriter

This commit is contained in:
Alexander Neumann 2016-01-24 18:53:39 +01:00
parent cfdd3a853d
commit ac2fe4e04f

View File

@ -2,7 +2,6 @@ package repository
import (
"bytes"
"crypto/sha256"
"encoding/json"
"errors"
"fmt"
@ -329,60 +328,6 @@ func (r *Repository) SetIndex(i *MasterIndex) {
r.idx = i
}
// BlobWriter encrypts and saves the data written to it in a backend. After
// Close() was called, ID() returns the backend.ID.
type BlobWriter struct {
id backend.ID
blob backend.Blob
hw *backend.HashingWriter
ewr io.WriteCloser
t backend.Type
closed bool
}
// CreateEncryptedBlob returns a BlobWriter that encrypts and saves the data
// written to it in the backend. After Close() was called, ID() returns the
// backend.ID.
func (r *Repository) CreateEncryptedBlob(t backend.Type) (*BlobWriter, error) {
blob, err := r.be.Create()
if err != nil {
return nil, err
}
// hash
hw := backend.NewHashingWriter(blob, sha256.New())
// encrypt blob
ewr := crypto.EncryptTo(r.key, hw)
return &BlobWriter{t: t, blob: blob, hw: hw, ewr: ewr}, nil
}
func (bw *BlobWriter) Write(buf []byte) (int, error) {
return bw.ewr.Write(buf)
}
// Close finalizes the blob in the backend, afterwards ID() can be used to retrieve the ID.
func (bw *BlobWriter) Close() error {
if bw.closed {
return errors.New("BlobWriter already closed")
}
bw.closed = true
err := bw.ewr.Close()
if err != nil {
return err
}
copy(bw.id[:], bw.hw.Sum(nil))
return bw.blob.Finalize(bw.t, bw.id.String())
}
// ID returns the Id the blob has been written to after Close() was called.
func (bw *BlobWriter) ID() backend.ID {
return bw.id
}
// SaveIndex saves an index in the repository.
func SaveIndex(repo *Repository, index *Index) (backend.ID, error) {
buf := bytes.NewBuffer(nil)