mirror of
https://github.com/restic/restic.git
synced 2024-08-19 02:43:23 +02:00
53 lines
1.4 KiB
Go
53 lines
1.4 KiB
Go
package restorer
|
|
|
|
import (
|
|
"github.com/restic/restic/internal/errors"
|
|
"github.com/restic/restic/internal/restic"
|
|
)
|
|
|
|
type filePackTraverser struct {
|
|
lookup func(restic.ID, restic.BlobType) ([]restic.PackedBlob, bool)
|
|
}
|
|
|
|
// iterates over all remaining packs of the file
|
|
func (t *filePackTraverser) forEachFilePack(file *fileInfo, fn func(packIdx int, packID restic.ID, packBlobs []restic.Blob) bool) error {
|
|
if len(file.blobs) == 0 {
|
|
return nil
|
|
}
|
|
|
|
getBlobPack := func(blobID restic.ID) (restic.PackedBlob, error) {
|
|
packs, found := t.lookup(blobID, restic.DataBlob)
|
|
if !found {
|
|
return restic.PackedBlob{}, errors.Errorf("Unknown blob %s", blobID.String())
|
|
}
|
|
// TODO which pack to use if multiple packs have the blob?
|
|
// MUST return the same pack for the same blob during the same execution
|
|
return packs[0], nil
|
|
}
|
|
|
|
var prevPackID restic.ID
|
|
var prevPackBlobs []restic.Blob
|
|
packIdx := 0
|
|
for _, blobID := range file.blobs {
|
|
packedBlob, err := getBlobPack(blobID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if !prevPackID.IsNull() && prevPackID != packedBlob.PackID {
|
|
if !fn(packIdx, prevPackID, prevPackBlobs) {
|
|
return nil
|
|
}
|
|
packIdx++
|
|
}
|
|
if prevPackID != packedBlob.PackID {
|
|
prevPackID = packedBlob.PackID
|
|
prevPackBlobs = make([]restic.Blob, 0)
|
|
}
|
|
prevPackBlobs = append(prevPackBlobs, packedBlob.Blob)
|
|
}
|
|
if len(prevPackBlobs) > 0 {
|
|
fn(packIdx, prevPackID, prevPackBlobs)
|
|
}
|
|
return nil
|
|
}
|