TrueCloudLab/restic
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Use pack.BlobSet instead of backend.IDSet

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This commit is contained in:
Alexander Neumann 2016-08-04 18:59:26 +02:00
parent 3cca831b2e
commit 6285f31604
6 changed files with 114 additions and 108 deletions
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16
src/restic/find.go
View file

@ -2,12 +2,13 @@ package restic
import (
"restic/backend"
"restic/pack"
"restic/repository"
)
// findUsedBlobs traverse the tree ID and adds all seen blobs to blobs.
func findUsedBlobs(repo *repository.Repository, treeID backend.ID, blobs backend.IDSet, seen backend.IDSet) error {
blobs.Insert(treeID)
func findUsedBlobs(repo *repository.Repository, treeID backend.ID, blobs pack.BlobSet, seen pack.BlobSet) error {
blobs.Insert(pack.Handle{ID: treeID, Type: pack.Tree})
tree, err := LoadTree(repo, treeID)
if err != nil {
@ -18,15 +19,16 @@ func findUsedBlobs(repo *repository.Repository, treeID backend.ID, blobs backend
switch node.Type {
case "file":
for _, blob := range node.Content {
blobs.Insert(blob)
blobs.Insert(pack.Handle{ID: blob, Type: pack.Data})
}
case "dir":
subtreeID := *node.Subtree
if seen.Has(subtreeID) {
h := pack.Handle{ID: subtreeID, Type: pack.Tree}
if seen.Has(h) {
continue
}
seen.Insert(subtreeID)
seen.Insert(h)
err := findUsedBlobs(repo, subtreeID, blobs, seen)
if err != nil {
@ -39,6 +41,6 @@ func findUsedBlobs(repo *repository.Repository, treeID backend.ID, blobs backend
}
// FindUsedBlobs traverses the tree ID and adds all seen blobs (trees and data blobs) to the set blobs.
func FindUsedBlobs(repo *repository.Repository, treeID backend.ID, blobs backend.IDSet) error {
return findUsedBlobs(repo, treeID, blobs, backend.NewIDSet())
func FindUsedBlobs(repo *repository.Repository, treeID backend.ID, blobs pack.BlobSet) error {
return findUsedBlobs(repo, treeID, blobs, pack.NewBlobSet())
}

40
src/restic/find_test.go
View file

@ -2,6 +2,7 @@ package restic
import (
"bufio"
"encoding/json"
"flag"
"fmt"
"os"
@ -10,51 +11,58 @@ import (
"testing"
"time"
"restic/backend"
"restic/pack"
"restic/repository"
)
func loadIDSet(t testing.TB, filename string) backend.IDSet {
func loadIDSet(t testing.TB, filename string) pack.BlobSet {
f, err := os.Open(filename)
if err != nil {
t.Logf("unable to open golden file %v: %v", filename, err)
return backend.IDSet{}
return pack.NewBlobSet()
}
sc := bufio.NewScanner(f)
ids := backend.NewIDSet()
blobs := pack.NewBlobSet()
for sc.Scan() {
id, err := backend.ParseID(sc.Text())
var h pack.Handle
err := json.Unmarshal([]byte(sc.Text()), &h)
if err != nil {
t.Errorf("file %v contained invalid id: %v", filename, err)
t.Errorf("file %v contained invalid blob: %#v", filename, err)
continue
}
ids.Insert(id)
blobs.Insert(h)
}
if err = f.Close(); err != nil {
t.Errorf("closing file %v failed with error %v", filename, err)
}
return ids
return blobs
}
func saveIDSet(t testing.TB, filename string, s backend.IDSet) {
func saveIDSet(t testing.TB, filename string, s pack.BlobSet) {
f, err := os.OpenFile(filename, os.O_WRONLY|os.O_CREATE, 0644)
if err != nil {
t.Fatalf("unable to update golden file %v: %v", filename, err)
return
}
var ids backend.IDs
for id := range s {
ids = append(ids, id)
var hs pack.Handles
for h := range s {
hs = append(hs, h)
}
sort.Sort(ids)
for _, id := range ids {
fmt.Fprintf(f, "%s\n", id)
sort.Sort(hs)
enc := json.NewEncoder(f)
for _, h := range hs {
err = enc.Encode(h)
if err != nil {
t.Fatalf("Encode() returned error: %v", err)
}
}
if err = f.Close(); err != nil {
@ -83,7 +91,7 @@ func TestFindUsedBlobs(t *testing.T) {
}
for i, sn := range snapshots {
usedBlobs := backend.NewIDSet()
usedBlobs := pack.NewBlobSet()
err := FindUsedBlobs(repo, *sn.Tree, usedBlobs)
if err != nil {
t.Errorf("FindUsedBlobs returned error: %v", err)

6
src/restic/pack/handle.go
View file

@ -23,10 +23,6 @@ func (h Handles) Len() int {
}
func (h Handles) Less(i, j int) bool {
if h[i].Type != h[j].Type {
return h[i].Type < h[j].Type
}
for k, b := range h[i].ID {
if b == h[j].ID[k] {
continue
@ -39,7 +35,7 @@ func (h Handles) Less(i, j int) bool {
return false
}
return false
return h[i].Type < h[j].Type
}
func (h Handles) Swap(i, j int) {

74
src/restic/testdata/used_blobs_snapshot0 vendored
View file

@ -1,37 +1,37 @@
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68
src/restic/testdata/used_blobs_snapshot1 vendored
View file

@ -1,34 +1,34 @@
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{"ID":"011a951a9796979c2b515ef4209662013bd1f16a20a1b35d1d950d7408bdc8b4","Type":"tree"}
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{"ID":"e791912a7fad8954c764fae41d2958d2feeae2278e403429add9119ab43a36f5","Type":"tree"}
{"ID":"f728e5576d4ab63248c310396d67d9afa3267dd2dea3cfba690dbd04efe181fb","Type":"data"}
{"ID":"fe19f084021bdac5a9a5d270042ff53ef36357dd0743318d0480dee1a43de266","Type":"data"}

18
src/restic/testdata/used_blobs_snapshot2 vendored
View file

@ -1,9 +1,9 @@
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