// Save writes a new index containing the given packs.
func Save(repo restic.Repository, packs map[restic.ID][]restic.Blob, supersedes restic.IDs) (restic.ID, error) {
idx := &indexJSON{
Supersedes: supersedes,
Packs: make([]*packJSON, 0, len(packs)),
}
for packID, blobs := range packs {
b := make([]blobJSON, 0, len(blobs))
for _, blob := range blobs {
b = append(b, blobJSON{
ID: blob.ID,
Type: blob.Type,
Offset: blob.Offset,
Length: blob.Length,
})
}
p := &packJSON{
ID: packID,
Blobs: b,
}
idx.Packs = append(idx.Packs, p)
}
return repo.SaveJSONUnpacked(restic.IndexFile, idx)
}
func createFakeLock(repo restic.Repository, t time.Time, pid int) (restic.ID, error) {
hostname, err := os.Hostname()
if err != nil {
return restic.ID{}, err
}
newLock := &restic.Lock{Time: t, PID: pid, Hostname: hostname}
return repo.SaveJSONUnpacked(restic.LockFile, &newLock)
}
// ArchiveReader reads from the reader and archives the data. Returned is the
// resulting snapshot and its ID.
func ArchiveReader(repo restic.Repository, p *restic.Progress, rd io.Reader, name string, tags []string) (*restic.Snapshot, restic.ID, error) {
debug.Log("start archiving %s", name)
sn, err := restic.NewSnapshot([]string{name}, tags)
if err != nil {
return nil, restic.ID{}, err
}
p.Start()
defer p.Done()
chnker := chunker.New(rd, repo.Config().ChunkerPolynomial)
var ids restic.IDs
var fileSize uint64
for {
chunk, err := chnker.Next(getBuf())
if errors.Cause(err) == io.EOF {
break
}
if err != nil {
return nil, restic.ID{}, errors.Wrap(err, "chunker.Next()")
}
id := restic.Hash(chunk.Data)
if !repo.Index().Has(id, restic.DataBlob) {
_, err := repo.SaveBlob(restic.DataBlob, chunk.Data, id)
if err != nil {
return nil, restic.ID{}, err
}
debug.Log("saved blob %v (%d bytes)\n", id.Str(), chunk.Length)
} else {
debug.Log("blob %v already saved in the repo\n", id.Str())
}
freeBuf(chunk.Data)
ids = append(ids, id)
p.Report(restic.Stat{Bytes: uint64(chunk.Length)})
fileSize += uint64(chunk.Length)
}
tree := &restic.Tree{
Nodes: []*restic.Node{
&restic.Node{
Name: name,
AccessTime: time.Now(),
ModTime: time.Now(),
Type: "file",
Mode: 0644,
Size: fileSize,
UID: sn.UID,
GID: sn.GID,
User: sn.Username,
Content: ids,
},
},
}
treeID, err := repo.SaveTree(tree)
if err != nil {
return nil, restic.ID{}, err
}
sn.Tree = &treeID
debug.Log("tree saved as %v", treeID.Str())
id, err := repo.SaveJSONUnpacked(restic.SnapshotFile, sn)
if err != nil {
return nil, restic.ID{}, err
}
debug.Log("snapshot saved as %v", id.Str())
err = repo.Flush()
if err != nil {
return nil, restic.ID{}, err
}
err = repo.SaveIndex()
if err != nil {
return nil, restic.ID{}, err
}
return sn, id, nil
}