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Code Issues Releases Wiki Activity

Fix calls to repo/backend.List() everywhere

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This commit is contained in:
Alexander Neumann 2018-01-21 17:25:36 +01:00
parent e9ea268847
commit b0c6e53241
28 changed files with 318 additions and 254 deletions
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79
cmd/restic/cmd_debug.go
View File

@ -15,8 +15,6 @@ import (
"github.com/restic/restic/internal/pack"
"github.com/restic/restic/internal/repository"
"github.com/restic/restic/internal/restic"
"github.com/restic/restic/internal/worker"
)
var cmdDebug = &cobra.Command{
@ -52,25 +50,17 @@ func prettyPrintJSON(wr io.Writer, item interface{}) error {
}
func debugPrintSnapshots(repo *repository.Repository, wr io.Writer) error {
for id := range repo.List(context.TODO(), restic.SnapshotFile) {
return repo.List(context.TODO(), restic.SnapshotFile, func(id restic.ID, size int64) error {
snapshot, err := restic.LoadSnapshot(context.TODO(), repo, id)
if err != nil {
fmt.Fprintf(os.Stderr, "LoadSnapshot(%v): %v", id.Str(), err)
continue
return err
}
fmt.Fprintf(wr, "snapshot_id: %v\n", id)
err = prettyPrintJSON(wr, snapshot)
if err != nil {
return err
return prettyPrintJSON(wr, snapshot)
})
}
}
return nil
}
const dumpPackWorkers = 10
// Pack is the struct used in printPacks.
type Pack struct {
@ -88,49 +78,21 @@ type Blob struct {
}
func printPacks(repo *repository.Repository, wr io.Writer) error {
f := func(ctx context.Context, job worker.Job) (interface{}, error) {
name := job.Data.(string)
h := restic.Handle{Type: restic.DataFile, Name: name}
return repo.List(context.TODO(), restic.DataFile, func(id restic.ID, size int64) error {
h := restic.Handle{Type: restic.DataFile, Name: id.String()}
blobInfo, err := repo.Backend().Stat(ctx, h)
blobs, err := pack.List(repo.Key(), restic.ReaderAt(repo.Backend(), h), size)
if err != nil {
return nil, err
fmt.Fprintf(os.Stderr, "error for pack %v: %v\n", id.Str(), err)
return nil
}
blobs, err := pack.List(repo.Key(), restic.ReaderAt(repo.Backend(), h), blobInfo.Size)
if err != nil {
return nil, err
}
return blobs, nil
}
jobCh := make(chan worker.Job)
resCh := make(chan worker.Job)
wp := worker.New(context.TODO(), dumpPackWorkers, f, jobCh, resCh)
go func() {
for name := range repo.Backend().List(context.TODO(), restic.DataFile) {
jobCh <- worker.Job{Data: name}
}
close(jobCh)
}()
for job := range resCh {
name := job.Data.(string)
if job.Error != nil {
fmt.Fprintf(os.Stderr, "error for pack %v: %v\n", name, job.Error)
continue
}
entries := job.Result.([]restic.Blob)
p := Pack{
Name: name,
Blobs: make([]Blob, len(entries)),
Name: id.String(),
Blobs: make([]Blob, len(blobs)),
}
for i, blob := range entries {
for i, blob := range blobs {
p.Blobs[i] = Blob{
Type: blob.Type,
Length: blob.Length,
@ -139,16 +101,14 @@ func printPacks(repo *repository.Repository, wr io.Writer) error {
}
}
prettyPrintJSON(os.Stdout, p)
}
wp.Wait()
return prettyPrintJSON(os.Stdout, p)
})
return nil
}
func dumpIndexes(repo restic.Repository) error {
for id := range repo.List(context.TODO(), restic.IndexFile) {
return repo.List(context.TODO(), restic.IndexFile, func(id restic.ID, size int64) error {
fmt.Printf("index_id: %v\n", id)
idx, err := repository.LoadIndex(context.TODO(), repo, id)
@ -156,13 +116,8 @@ func dumpIndexes(repo restic.Repository) error {
return err
}
err = idx.Dump(os.Stdout)
if err != nil {
return err
}
}
return nil
return idx.Dump(os.Stdout)
})
}
func runDebugDump(gopts GlobalOptions, args []string) error {

8
cmd/restic/cmd_key.go
View File

@ -32,11 +32,11 @@ func listKeys(ctx context.Context, s *repository.Repository) error {
tab.Header = fmt.Sprintf(" %-10s %-10s %-10s %s", "ID", "User", "Host", "Created")
tab.RowFormat = "%s%-10s %-10s %-10s %s"
for id := range s.List(ctx, restic.KeyFile) {
err := s.List(ctx, restic.KeyFile, func(id restic.ID, size int64) error {
k, err := repository.LoadKey(ctx, s, id.String())
if err != nil {
Warnf("LoadKey() failed: %v\n", err)
continue
return nil
}
var current string
@ -47,6 +47,10 @@ func listKeys(ctx context.Context, s *repository.Repository) error {
}
tab.Rows = append(tab.Rows, []interface{}{current, id.Str(),
k.Username, k.Hostname, k.Created.Format(TimeFormat)})
return nil
})
if err != nil {
return err
}
return tab.Write(globalOptions.stdout)

5
cmd/restic/cmd_list.go
View File

@ -73,9 +73,8 @@ func runList(opts GlobalOptions, args []string) error {
return errors.Fatal("invalid type")
}
for id := range repo.List(opts.ctx, t) {
return repo.List(opts.ctx, t, func(id restic.ID, size int64) error {
Printf("%s\n", id)
}
return nil
})
}

6
cmd/restic/cmd_prune.go
View File

@ -120,8 +120,12 @@ func pruneRepository(gopts GlobalOptions, repo restic.Repository) error {
}
Verbosef("counting files in repo\n")
for range repo.List(ctx, restic.DataFile) {
err = repo.List(ctx, restic.DataFile, func(restic.ID, int64) error {
stats.packs++
return nil
})
if err != nil {
return err
}
Verbosef("building new index for repo\n")

12
cmd/restic/cmd_rebuild_index.go
View File

@ -48,8 +48,12 @@ func rebuildIndex(ctx context.Context, repo restic.Repository, ignorePacks resti
Verbosef("counting files in repo\n")
var packs uint64
for range repo.List(ctx, restic.DataFile) {
err := repo.List(ctx, restic.DataFile, func(restic.ID, int64) error {
packs++
return nil
})
if err != nil {
return err
}
bar := newProgressMax(!globalOptions.Quiet, packs-uint64(len(ignorePacks)), "packs")
@ -61,8 +65,12 @@ func rebuildIndex(ctx context.Context, repo restic.Repository, ignorePacks resti
Verbosef("finding old index files\n")
var supersedes restic.IDs
for id := range repo.List(ctx, restic.IndexFile) {
err = repo.List(ctx, restic.IndexFile, func(id restic.ID, size int64) error {
supersedes = append(supersedes, id)
return nil
})
if err != nil {
return err
}
id, err := idx.Save(ctx, repo, supersedes)

8
cmd/restic/find.go
View File

@ -58,7 +58,13 @@ func FindFilteredSnapshots(ctx context.Context, repo *repository.Repository, hos
return
}
for _, sn := range restic.FindFilteredSnapshots(ctx, repo, host, tags, paths) {
snapshots, err := restic.FindFilteredSnapshots(ctx, repo, host, tags, paths)
if err != nil {
Warnf("could not load snapshots: %v\n", err)
return
}
for _, sn := range snapshots {
select {
case <-ctx.Done():
return

6
internal/archiver/archive_reader_test.go
View File

@ -135,8 +135,12 @@ func (e errReader) Read([]byte) (int, error) {
func countSnapshots(t testing.TB, repo restic.Repository) int {
snapshots := 0
for range repo.List(context.TODO(), restic.SnapshotFile) {
err := repo.List(context.TODO(), restic.SnapshotFile, func(id restic.ID, size int64) error {
snapshots++
return nil
})
if err != nil {
t.Fatal(err)
}
return snapshots
}

6
internal/archiver/archiver_duplication_test.go
View File

@ -60,10 +60,8 @@ func forgetfulBackend() restic.Backend {
return nil
}
be.ListFn = func(ctx context.Context, t restic.FileType) <-chan string {
ch := make(chan string)
close(ch)
return ch
be.ListFn = func(ctx context.Context, t restic.FileType, fn func(restic.FileInfo) error) error {
return nil
}
be.DeleteFn = func(ctx context.Context) error {

14
internal/archiver/archiver_test.go
View File

@ -131,9 +131,13 @@ func BenchmarkArchiveDirectory(b *testing.B) {
}
}
func countPacks(repo restic.Repository, t restic.FileType) (n uint) {
for range repo.Backend().List(context.TODO(), t) {
func countPacks(t testing.TB, repo restic.Repository, tpe restic.FileType) (n uint) {
err := repo.Backend().List(context.TODO(), tpe, func(restic.FileInfo) error {
n++
return nil
})
if err != nil {
t.Fatal(err)
}
return n
@ -158,7 +162,7 @@ func archiveWithDedup(t testing.TB) {
t.Logf("archived snapshot %v", sn.ID().Str())
// get archive stats
cnt.before.packs = countPacks(repo, restic.DataFile)
cnt.before.packs = countPacks(t, repo, restic.DataFile)
cnt.before.dataBlobs = repo.Index().Count(restic.DataBlob)
cnt.before.treeBlobs = repo.Index().Count(restic.TreeBlob)
t.Logf("packs %v, data blobs %v, tree blobs %v",
@ -169,7 +173,7 @@ func archiveWithDedup(t testing.TB) {
t.Logf("archived snapshot %v", sn2.ID().Str())
// get archive stats again
cnt.after.packs = countPacks(repo, restic.DataFile)
cnt.after.packs = countPacks(t, repo, restic.DataFile)
cnt.after.dataBlobs = repo.Index().Count(restic.DataBlob)
cnt.after.treeBlobs = repo.Index().Count(restic.TreeBlob)
t.Logf("packs %v, data blobs %v, tree blobs %v",
@ -186,7 +190,7 @@ func archiveWithDedup(t testing.TB) {
t.Logf("archived snapshot %v, parent %v", sn3.ID().Str(), sn2.ID().Str())
// get archive stats again
cnt.after2.packs = countPacks(repo, restic.DataFile)
cnt.after2.packs = countPacks(t, repo, restic.DataFile)
cnt.after2.dataBlobs = repo.Index().Count(restic.DataBlob)
cnt.after2.treeBlobs = repo.Index().Count(restic.TreeBlob)
t.Logf("packs %v, data blobs %v, tree blobs %v",

13
internal/backend/mem/mem_backend.go
View File

@ -164,17 +164,22 @@ func (be *MemoryBackend) Remove(ctx context.Context, h restic.Handle) error {
// List returns a channel which yields entries from the backend.
func (be *MemoryBackend) List(ctx context.Context, t restic.FileType, fn func(restic.FileInfo) error) error {
be.m.Lock()
defer be.m.Unlock()
entries := make(map[string]int64)
be.m.Lock()
for entry, buf := range be.data {
if entry.Type != t {
continue
}
entries[entry.Name] = int64(len(buf))
}
be.m.Unlock()
for name, size := range entries {
fi := restic.FileInfo{
Name: entry.Name,
Size: int64(len(buf)),
Name: name,
Size: size,
}
if ctx.Err() != nil {

62
internal/checker/checker.go
View File

@ -12,6 +12,7 @@ import (
"github.com/restic/restic/internal/fs"
"github.com/restic/restic/internal/hashing"
"github.com/restic/restic/internal/restic"
"golang.org/x/sync/errgroup"
"github.com/restic/restic/internal/debug"
"github.com/restic/restic/internal/pack"
@ -192,13 +193,14 @@ func (c *Checker) Packs(ctx context.Context, errChan chan<- error) {
debug.Log("listing repository packs")
repoPacks := restic.NewIDSet()
for id := range c.repo.List(ctx, restic.DataFile) {
select {
case <-ctx.Done():
return
default:
}
err := c.repo.List(ctx, restic.DataFile, func(id restic.ID, size int64) error {
repoPacks.Insert(id)
return nil
})
if err != nil {
errChan <- err
}
// orphaned: present in the repo but not in c.packs
@ -719,18 +721,34 @@ func (c *Checker) ReadData(ctx context.Context, p *restic.Progress, errChan chan
p.Start()
defer p.Done()
worker := func(wg *sync.WaitGroup, in <-chan restic.ID) {
defer wg.Done()
g, ctx := errgroup.WithContext(ctx)
ch := make(chan restic.ID)
// start producer for channel ch
g.Go(func() error {
defer close(ch)
return c.repo.List(ctx, restic.DataFile, func(id restic.ID, size int64) error {
select {
case <-ctx.Done():
case ch <- id:
}
return nil
})
})
// run workers
for i := 0; i < defaultParallelism; i++ {
g.Go(func() error {
for {
var id restic.ID
var ok bool
select {
case <-ctx.Done():
return
case id, ok = <-in:
return nil
case id, ok = <-ch:
if !ok {
return
return nil
}
}
@ -740,6 +758,17 @@ func (c *Checker) ReadData(ctx context.Context, p *restic.Progress, errChan chan
continue
}
select {
case <-ctx.Done():
return nil
case errChan <- err:
}
}
})
}
err := g.Wait()
if err != nil {
select {
case <-ctx.Done():
return
@ -747,14 +776,3 @@ func (c *Checker) ReadData(ctx context.Context, p *restic.Progress, errChan chan
}
}
}
ch := c.repo.List(ctx, restic.DataFile)
var wg sync.WaitGroup
for i := 0; i < defaultParallelism; i++ {
wg.Add(1)
go worker(&wg, ch)
}
wg.Wait()
}

8
internal/fuse/file_test.go
View File

@ -35,11 +35,17 @@ func testRead(t testing.TB, f *file, offset, length int, data []byte) {
}
func firstSnapshotID(t testing.TB, repo restic.Repository) (first restic.ID) {
for id := range repo.List(context.TODO(), restic.SnapshotFile) {
err := repo.List(context.TODO(), restic.SnapshotFile, func(id restic.ID, size int64) error {
if first.IsNull() {
first = id
}
return nil
})
if err != nil {
t.Fatal(err)
}
return first
}

12
internal/fuse/snapshots_dir.go
View File

@ -227,18 +227,24 @@ func isElem(e string, list []string) bool {
const minSnapshotsReloadTime = 60 * time.Second
// update snapshots if repository has changed
func updateSnapshots(ctx context.Context, root *Root) {
func updateSnapshots(ctx context.Context, root *Root) error {
if time.Since(root.lastCheck) < minSnapshotsReloadTime {
return
return nil
}
snapshots, err := restic.FindFilteredSnapshots(ctx, root.repo, root.cfg.Host, root.cfg.Tags, root.cfg.Paths)
if err != nil {
return err
}
snapshots := restic.FindFilteredSnapshots(ctx, root.repo, root.cfg.Host, root.cfg.Tags, root.cfg.Paths)
if root.snCount != len(snapshots) {
root.snCount = len(snapshots)
root.repo.LoadIndex(ctx)
root.snapshots = snapshots
}
root.lastCheck = time.Now()
return nil
}
// read snapshot timestamps from the current repository-state.

12
internal/index/index.go
View File

@ -115,13 +115,13 @@ func Load(ctx context.Context, repo restic.Repository, p *restic.Progress) (*Ind
index := newIndex()
for id := range repo.List(ctx, restic.IndexFile) {
err := repo.List(ctx, restic.IndexFile, func(id restic.ID, size int64) error {
p.Report(restic.Stat{Blobs: 1})
debug.Log("Load index %v", id.Str())
idx, err := loadIndexJSON(ctx, repo, id)
if err != nil {
return nil, err
return err
}
res := make(map[restic.ID]Pack)
@ -144,12 +144,18 @@ func Load(ctx context.Context, repo restic.Repository, p *restic.Progress) (*Ind
}
if err = index.AddPack(jpack.ID, 0, entries); err != nil {
return nil, err
return err
}
}
results[id] = res
index.IndexIDs.Insert(id)
return nil
})
if err != nil {
return nil, err
}
for superID, list := range supersedes {

16
internal/index/index_test.go
View File

@ -28,7 +28,7 @@ func createFilledRepo(t testing.TB, snapshots int, dup float32) (restic.Reposito
}
func validateIndex(t testing.TB, repo restic.Repository, idx *Index) {
for id := range repo.List(context.TODO(), restic.DataFile) {
err := repo.List(context.TODO(), restic.DataFile, func(id restic.ID, size int64) error {
p, ok := idx.Packs[id]
if !ok {
t.Errorf("pack %v missing from index", id.Str())
@ -37,6 +37,11 @@ func validateIndex(t testing.TB, repo restic.Repository, idx *Index) {
if !p.ID.Equal(id) {
t.Errorf("pack %v has invalid ID: want %v, got %v", id.Str(), id, p.ID)
}
return nil
})
if err != nil {
t.Fatal(err)
}
}
@ -308,7 +313,14 @@ func TestIndexAddRemovePack(t *testing.T) {
t.Fatalf("Load() returned error %v", err)
}
packID := <-repo.List(context.TODO(), restic.DataFile)
var packID restic.ID
err = repo.List(context.TODO(), restic.DataFile, func(id restic.ID, size int64) error {
packID = id
return nil
})
if err != nil {
t.Fatal(err)
}
t.Logf("selected pack %v", packID.Str())

12
internal/list/list.go
View File

@ -11,7 +11,7 @@ const listPackWorkers = 10
// Lister combines lists packs in a repo and blobs in a pack.
type Lister interface {
List(context.Context, restic.FileType) <-chan restic.ID
List(context.Context, restic.FileType, func(restic.ID, int64) error) error
ListPack(context.Context, restic.ID) ([]restic.Blob, int64, error)
}
@ -55,17 +55,19 @@ func AllPacks(ctx context.Context, repo Lister, ignorePacks restic.IDSet, ch cha
go func() {
defer close(jobCh)
for id := range repo.List(ctx, restic.DataFile) {
_ = repo.List(ctx, restic.DataFile, func(id restic.ID, size int64) error {
if ignorePacks.Has(id) {
continue
return nil
}
select {
case jobCh <- worker.Job{Data: id}:
case <-ctx.Done():
return
}
return ctx.Err()
}
return nil
})
}()
wp.Wait()

8
internal/migrations/s3_layout.go
View File

@ -59,14 +59,14 @@ func (m *S3Layout) moveFiles(ctx context.Context, be *s3.Backend, l backend.Layo
fmt.Fprintf(os.Stderr, "renaming file returned error: %v\n", err)
}
for name := range be.List(ctx, t) {
h := restic.Handle{Type: t, Name: name}
return be.List(ctx, t, func(fi restic.FileInfo) error {
h := restic.Handle{Type: t, Name: fi.Name}
debug.Log("move %v", h)
retry(maxErrors, printErr, func() error {
return retry(maxErrors, printErr, func() error {
return be.Rename(h, l)
})
}
})
return nil
}

40
internal/repository/key.go
View File

@ -113,44 +113,50 @@ func OpenKey(ctx context.Context, s *Repository, name string, password string) (
// given password. If none could be found, ErrNoKeyFound is returned. When
// maxKeys is reached, ErrMaxKeysReached is returned. When setting maxKeys to
// zero, all keys in the repo are checked.
func SearchKey(ctx context.Context, s *Repository, password string, maxKeys int) (*Key, error) {
func SearchKey(ctx context.Context, s *Repository, password string, maxKeys int) (k *Key, err error) {
checked := 0
// try at most maxKeysForSearch keys in repo
for name := range s.Backend().List(ctx, restic.KeyFile) {
err = s.Backend().List(ctx, restic.KeyFile, func(fi restic.FileInfo) error {
if maxKeys > 0 && checked > maxKeys {
return nil, ErrMaxKeysReached
return ErrMaxKeysReached
}
_, err := restic.ParseID(name)
_, err := restic.ParseID(fi.Name)
if err != nil {
debug.Log("rejecting key with invalid name: %v", name)
continue
debug.Log("rejecting key with invalid name: %v", fi.Name)
return nil
}
debug.Log("trying key %q", name)
key, err := OpenKey(ctx, s, name, password)
debug.Log("trying key %q", fi.Name)
key, err := OpenKey(ctx, s, fi.Name, password)
if err != nil {
debug.Log("key %v returned error %v", name, err)
debug.Log("key %v returned error %v", fi.Name, err)
// ErrUnauthenticated means the password is wrong, try the next key
if errors.Cause(err) == crypto.ErrUnauthenticated {
continue
return nil
}
return err
}
debug.Log("successfully opened key %v", fi.Name)
k = key
return nil
})
if err != nil {
debug.Log("unable to open key %v: %v\n", err)
continue
}
}
debug.Log("successfully opened key %v", name)
return key, nil
return nil, err
}
if k == nil {
return nil, ErrNoKeyFound
}
return k, nil
}
// LoadKey loads a key from the backend.
func LoadKey(ctx context.Context, s *Repository, name string) (k *Key, err error) {
h := restic.Handle{Type: restic.KeyFile, Name: name}

61
internal/repository/parallel.go
View File

@ -2,10 +2,10 @@ package repository
import (
"context"
"sync"
"github.com/restic/restic/internal/debug"
"github.com/restic/restic/internal/restic"
"golang.org/x/sync/errgroup"
)
// ParallelWorkFunc gets one file ID to work on. If an error is returned,
@ -17,47 +17,36 @@ type ParallelWorkFunc func(ctx context.Context, id string) error
type ParallelIDWorkFunc func(ctx context.Context, id restic.ID) error
// FilesInParallel runs n workers of f in parallel, on the IDs that
// repo.List(t) yield. If f returns an error, the process is aborted and the
// repo.List(t) yields. If f returns an error, the process is aborted and the
// first error is returned.
func FilesInParallel(ctx context.Context, repo restic.Lister, t restic.FileType, n uint, f ParallelWorkFunc) error {
wg := &sync.WaitGroup{}
ch := repo.List(ctx, t)
errors := make(chan error, n)
func FilesInParallel(ctx context.Context, repo restic.Lister, t restic.FileType, n int, f ParallelWorkFunc) error {
g, ctx := errgroup.WithContext(ctx)
for i := 0; uint(i) < n; i++ {
wg.Add(1)
go func() {
defer wg.Done()
for {
ch := make(chan string, n)
g.Go(func() error {
defer close(ch)
return repo.List(ctx, t, func(fi restic.FileInfo) error {
select {
case id, ok := <-ch:
if !ok {
return
}
err := f(ctx, id)
if err != nil {
errors <- err
return
}
case <-ctx.Done():
return
case ch <- fi.Name:
}
}
}()
}
wg.Wait()
select {
case err := <-errors:
return err
default:
break
}
return nil
})
})
for i := 0; i < n; i++ {
g.Go(func() error {
for name := range ch {
err := f(ctx, name)
if err != nil {
return err
}
}
return nil
})
}
return g.Wait()
}
// ParallelWorkFuncParseID converts a function that takes a restic.ID to a

38
internal/repository/parallel_test.go
View File

@ -74,24 +74,25 @@ var lister = testIDs{
"34dd044c228727f2226a0c9c06a3e5ceb5e30e31cb7854f8fa1cde846b395a58",
}
func (tests testIDs) List(ctx context.Context, t restic.FileType) <-chan string {
ch := make(chan string)
go func() {
defer close(ch)
func (tests testIDs) List(ctx context.Context, t restic.FileType, fn func(restic.FileInfo) error) error {
for i := 0; i < 500; i++ {
for _, id := range tests {
select {
case ch <- id:
case <-ctx.Done():
return
if ctx.Err() != nil {
return ctx.Err()
}
}
}
}()
return ch
fi := restic.FileInfo{
Name: id,
}
err := fn(fi)
if err != nil {
return err
}
}
}
return nil
}
func TestFilesInParallel(t *testing.T) {
@ -100,7 +101,7 @@ func TestFilesInParallel(t *testing.T) {
return nil
}
for n := uint(1); n < 5; n++ {
for n := 1; n < 5; n++ {
err := repository.FilesInParallel(context.TODO(), lister, restic.DataFile, n*100, f)
rtest.OK(t, err)
}
@ -109,7 +110,6 @@ func TestFilesInParallel(t *testing.T) {
var errTest = errors.New("test error")
func TestFilesInParallelWithError(t *testing.T) {
f := func(ctx context.Context, id string) error {
time.Sleep(1 * time.Millisecond)
@ -120,8 +120,10 @@ func TestFilesInParallelWithError(t *testing.T) {
return nil
}
for n := uint(1); n < 5; n++ {
for n := 1; n < 5; n++ {
err := repository.FilesInParallel(context.TODO(), lister, restic.DataFile, n*100, f)
rtest.Equals(t, errTest, err)
if err != errTest {
t.Fatalf("wrong error returned, want %q, got %v", errTest, err)
}
}
}

22
internal/repository/repack_test.go
View File

@ -74,7 +74,7 @@ func selectBlobs(t *testing.T, repo restic.Repository, p float32) (list1, list2
blobs := restic.NewBlobSet()
for id := range repo.List(context.TODO(), restic.DataFile) {
err := repo.List(context.TODO(), restic.DataFile, func(id restic.ID, size int64) error {
entries, _, err := repo.ListPack(context.TODO(), id)
if err != nil {
t.Fatalf("error listing pack %v: %v", id, err)
@ -84,7 +84,7 @@ func selectBlobs(t *testing.T, repo restic.Repository, p float32) (list1, list2
h := restic.BlobHandle{ID: entry.ID, Type: entry.Type}
if blobs.Has(h) {
t.Errorf("ignoring duplicate blob %v", h)
continue
return nil
}
blobs.Insert(h)
@ -93,8 +93,11 @@ func selectBlobs(t *testing.T, repo restic.Repository, p float32) (list1, list2
} else {
list2.Insert(restic.BlobHandle{ID: entry.ID, Type: entry.Type})
}
}
return nil
})
if err != nil {
t.Fatal(err)
}
return list1, list2
@ -102,8 +105,13 @@ func selectBlobs(t *testing.T, repo restic.Repository, p float32) (list1, list2
func listPacks(t *testing.T, repo restic.Repository) restic.IDSet {
list := restic.NewIDSet()
for id := range repo.List(context.TODO(), restic.DataFile) {
err := repo.List(context.TODO(), restic.DataFile, func(id restic.ID, size int64) error {
list.Insert(id)
return nil
})
if err != nil {
t.Fatal(err)
}
return list
@ -153,16 +161,16 @@ func rebuildIndex(t *testing.T, repo restic.Repository) {
t.Fatal(err)
}
for id := range repo.List(context.TODO(), restic.IndexFile) {
err = repo.List(context.TODO(), restic.IndexFile, func(id restic.ID, size int64) error {
h := restic.Handle{
Type: restic.IndexFile,
Name: id.String(),
}
err = repo.Backend().Remove(context.TODO(), h)
return repo.Backend().Remove(context.TODO(), h)
})
if err != nil {
t.Fatal(err)
}
}
_, err = idx.Save(context.TODO(), repo, nil)
if err != nil {

23
internal/repository/repository.go
View File

@ -536,22 +536,15 @@ func (r *Repository) KeyName() string {
return r.keyName
}
// List returns a channel that yields all IDs of type t in the backend.
func (r *Repository) List(ctx context.Context, t restic.FileType) <-chan restic.ID {
out := make(chan restic.ID)
go func() {
defer close(out)
for strID := range r.be.List(ctx, t) {
if id, err := restic.ParseID(strID); err == nil {
select {
case out <- id:
case <-ctx.Done():
return
// List runs fn for all files of type t in the repo.
func (r *Repository) List(ctx context.Context, t restic.FileType, fn func(restic.ID, int64) error) error {
return r.be.List(ctx, t, func(fi restic.FileInfo) error {
id, err := restic.ParseID(fi.Name)
if err != nil {
debug.Log("unable to parse %v as an ID", fi.Name)
}
}
}
}()
return out
return fn(id, fi.Size)
})
}
// ListPack returns the list of blobs saved in the pack id and the length of

6
internal/repository/repository_test.go
View File

@ -369,7 +369,7 @@ func TestRepositoryIncrementalIndex(t *testing.T) {
packEntries := make(map[restic.ID]map[restic.ID]struct{})
for id := range repo.List(context.TODO(), restic.IndexFile) {
err := repo.List(context.TODO(), restic.IndexFile, func(id restic.ID, size int64) error {
idx, err := repository.LoadIndex(context.TODO(), repo, id)
rtest.OK(t, err)
@ -380,6 +380,10 @@ func TestRepositoryIncrementalIndex(t *testing.T) {
packEntries[pb.PackID][id] = struct{}{}
}
return nil
})
if err != nil {
t.Fatal(err)
}
for packID, ids := range packEntries {

7
internal/restic/lock.go
View File

@ -157,15 +157,14 @@ func (l *Lock) checkForOtherLocks(ctx context.Context) error {
}
func eachLock(ctx context.Context, repo Repository, f func(ID, *Lock, error) error) error {
for id := range repo.List(ctx, LockFile) {
return repo.List(ctx, LockFile, func(id ID, size int64) error {
lock, err := LoadLock(ctx, repo, id)
err = f(id, lock, err)
if err != nil {
return err
}
}
return nil
return f(id, lock, err)
})
}
// createLock acquires the lock by creating a file in the repository.

12
internal/restic/lock_test.go
View File

@ -227,21 +227,29 @@ func TestLockRefresh(t *testing.T) {
rtest.OK(t, err)
var lockID *restic.ID
for id := range repo.List(context.TODO(), restic.LockFile) {
err = repo.List(context.TODO(), restic.LockFile, func(id restic.ID, size int64) error {
if lockID != nil {
t.Error("more than one lock found")
}
lockID = &id
return nil
})
if err != nil {
t.Fatal(err)
}
rtest.OK(t, lock.Refresh(context.TODO()))
var lockID2 *restic.ID
for id := range repo.List(context.TODO(), restic.LockFile) {
err = repo.List(context.TODO(), restic.LockFile, func(id restic.ID, size int64) error {
if lockID2 != nil {
t.Error("more than one lock found")
}
lockID2 = &id
return nil
})
if err != nil {
t.Fatal(err)
}
rtest.Assert(t, !lockID.Equal(*lockID2),

2
internal/restic/repository.go
View File

@ -26,7 +26,7 @@ type Repository interface {
LookupBlobSize(ID, BlobType) (uint, error)
List(context.Context, FileType) <-chan ID
List(context.Context, FileType, func(ID, int64) error) error
ListPack(context.Context, ID) ([]Blob, int64, error)
Flush(context.Context) error

14
internal/restic/snapshot.go
View File

@ -64,15 +64,21 @@ func LoadSnapshot(ctx context.Context, repo Repository, id ID) (*Snapshot, error
// LoadAllSnapshots returns a list of all snapshots in the repo.
func LoadAllSnapshots(ctx context.Context, repo Repository) (snapshots []*Snapshot, err error) {
for id := range repo.List(ctx, SnapshotFile) {
err = repo.List(ctx, SnapshotFile, func(id ID, size int64) error {
sn, err := LoadSnapshot(ctx, repo, id)
if err != nil {
return err
}
snapshots = append(snapshots, sn)
return nil
})
if err != nil {
return nil, err
}
snapshots = append(snapshots, sn)
}
return
return snapshots, nil
}
func (sn Snapshot) String() string {

32
internal/restic/snapshot_find.go
View File

@ -20,26 +20,31 @@ func FindLatestSnapshot(ctx context.Context, repo Repository, targets []string,
found bool
)
for snapshotID := range repo.List(ctx, SnapshotFile) {
err := repo.List(ctx, SnapshotFile, func(snapshotID ID, size int64) error {
snapshot, err := LoadSnapshot(ctx, repo, snapshotID)
if err != nil {
return ID{}, errors.Errorf("Error listing snapshot: %v", err)
return errors.Errorf("Error loading snapshot %v: %v", snapshotID.Str(), err)
}
if snapshot.Time.Before(latest) || (hostname != "" && hostname != snapshot.Hostname) {
continue
return nil
}
if !snapshot.HasTagList(tagLists) {
continue
return nil
}
if !snapshot.HasPaths(targets) {
continue
return nil
}
latest = snapshot.Time
latestID = snapshotID
found = true
return nil
})
if err != nil {
return ID{}, err
}
if !found {
@ -64,20 +69,27 @@ func FindSnapshot(repo Repository, s string) (ID, error) {
// FindFilteredSnapshots yields Snapshots filtered from the list of all
// snapshots.
func FindFilteredSnapshots(ctx context.Context, repo Repository, host string, tags []TagList, paths []string) Snapshots {
func FindFilteredSnapshots(ctx context.Context, repo Repository, host string, tags []TagList, paths []string) (Snapshots, error) {
results := make(Snapshots, 0, 20)
for id := range repo.List(ctx, SnapshotFile) {
err := repo.List(ctx, SnapshotFile, func(id ID, size int64) error {
sn, err := LoadSnapshot(ctx, repo, id)
if err != nil {
fmt.Fprintf(os.Stderr, "could not load snapshot %v: %v\n", id.Str(), err)
continue
return nil
}
if (host != "" && host != sn.Hostname) || !sn.HasTagList(tags) || !sn.HasPaths(paths) {
continue
return nil
}
results = append(results, sn)
return nil
})
if err != nil {
return nil, err
}
return results
return results, nil
}