func BenchmarkNodeFromFileInfo(t *testing.B) {
tempfile, err := ioutil.TempFile("", "restic-test-temp-")
if err != nil {
t.Fatal(err)
}
fi, err := tempfile.Stat()
if err != nil {
t.Fatal(err)
}
path := tempfile.Name()
t.ResetTimer()
for i := 0; i < t.N; i++ {
_, err := restic.NodeFromFileInfo(path, fi)
if err != nil {
t.Fatal(err)
}
}
OK(t, tempfile.Close())
RemoveAll(t, tempfile.Name())
}
func TestNodeComparison(t *testing.T) {
fi, err := os.Lstat("tree_test.go")
OK(t, err)
node, err := restic.NodeFromFileInfo("foo", fi)
OK(t, err)
n2 := *node
Assert(t, node.Equals(n2), "nodes aren't equal")
n2.Size--
Assert(t, !node.Equals(n2), "nodes are equal")
}
func TestNodeRestoreAt(t *testing.T) {
tempdir, err := ioutil.TempDir(TestTempDir, "restic-test-")
OK(t, err)
defer func() {
if TestCleanupTempDirs {
RemoveAll(t, tempdir)
} else {
t.Logf("leaving tempdir at %v", tempdir)
}
}()
for _, test := range nodeTests {
nodePath := filepath.Join(tempdir, test.Name)
OK(t, test.CreateAt(nodePath, nil))
if test.Type == "symlink" && runtime.GOOS == "windows" {
continue
}
if test.Type == "dir" {
OK(t, test.RestoreTimestamps(nodePath))
}
fi, err := os.Lstat(nodePath)
OK(t, err)
n2, err := restic.NodeFromFileInfo(nodePath, fi)
OK(t, err)
Assert(t, test.Name == n2.Name,
"%v: name doesn't match (%v != %v)", test.Type, test.Name, n2.Name)
Assert(t, test.Type == n2.Type,
"%v: type doesn't match (%v != %v)", test.Type, test.Type, n2.Type)
Assert(t, test.Size == n2.Size,
"%v: size doesn't match (%v != %v)", test.Size, test.Size, n2.Size)
if runtime.GOOS != "windows" {
Assert(t, test.UID == n2.UID,
"%v: UID doesn't match (%v != %v)", test.Type, test.UID, n2.UID)
Assert(t, test.GID == n2.GID,
"%v: GID doesn't match (%v != %v)", test.Type, test.GID, n2.GID)
if test.Type != "symlink" {
Assert(t, test.Mode == n2.Mode,
"%v: mode doesn't match (0%o != 0%o)", test.Type, test.Mode, n2.Mode)
}
}
AssertFsTimeEqual(t, "AccessTime", test.Type, test.AccessTime, n2.AccessTime)
AssertFsTimeEqual(t, "ModTime", test.Type, test.ModTime, n2.ModTime)
}
}
func (arch *Archiver) reloadFileIfChanged(node *restic.Node, file fs.File) (*restic.Node, error) {
fi, err := file.Stat()
if err != nil {
return nil, errors.Wrap(err, "restic.Stat")
}
if fi.ModTime() == node.ModTime {
return node, nil
}
arch.Warn(node.Path, fi, errors.New("file has changed"))
node, err = restic.NodeFromFileInfo(node.Path, fi)
if err != nil {
debug.Log("restic.NodeFromFileInfo returned error for %v: %v", node.Path, err)
return nil, err
}
return node, nil
}
func (arch *Archiver) dirWorker(wg *sync.WaitGroup, p *restic.Progress, done <-chan struct{}, dirCh <-chan pipe.Dir) {
debug.Log("start")
defer func() {
debug.Log("done")
wg.Done()
}()
for {
select {
case dir, ok := <-dirCh:
if !ok {
// channel is closed
return
}
debug.Log("save dir %v (%d entries), error %v\n", dir.Path(), len(dir.Entries), dir.Error())
// ignore dir nodes with errors
if dir.Error() != nil {
fmt.Fprintf(os.Stderr, "error walking dir %v: %v\n", dir.Path(), dir.Error())
dir.Result() <- nil
p.Report(restic.Stat{Errors: 1})
continue
}
tree := restic.NewTree()
// wait for all content
for _, ch := range dir.Entries {
debug.Log("receiving result from %v", ch)
res := <-ch
// if we get a nil pointer here, an error has happened while
// processing this entry. Ignore it for now.
if res == nil {
debug.Log("got nil result?")
continue
}
// else insert node
node := res.(*restic.Node)
tree.Insert(node)
if node.Type == "dir" {
debug.Log("got tree node for %s: %v", node.Path, node.Subtree)
if node.Subtree.IsNull() {
panic("invalid null subtree restic.ID")
}
}
}
node := &restic.Node{}
if dir.Path() != "" && dir.Info() != nil {
n, err := restic.NodeFromFileInfo(dir.Path(), dir.Info())
if err != nil {
n.Error = err.Error()
dir.Result() <- n
continue
}
node = n
}
if err := dir.Error(); err != nil {
node.Error = err.Error()
}
id, err := arch.SaveTreeJSON(tree)
if err != nil {
panic(err)
}
debug.Log("save tree for %s: %v", dir.Path(), id.Str())
if id.IsNull() {
panic("invalid null subtree restic.ID return from SaveTreeJSON()")
}
node.Subtree = &id
debug.Log("sending result to %v", dir.Result())
dir.Result() <- node
if dir.Path() != "" {
p.Report(restic.Stat{Dirs: 1})
}
case <-done:
// pipeline was cancelled
return
}
}
}
func (arch *Archiver) fileWorker(wg *sync.WaitGroup, p *restic.Progress, done <-chan struct{}, entCh <-chan pipe.Entry) {
defer func() {
debug.Log("done")
wg.Done()
}()
for {
select {
case e, ok := <-entCh:
if !ok {
// channel is closed
return
}
debug.Log("got job %v", e)
// check for errors
if e.Error() != nil {
debug.Log("job %v has errors: %v", e.Path(), e.Error())
// TODO: integrate error reporting
fmt.Fprintf(os.Stderr, "error for %v: %v\n", e.Path(), e.Error())
// ignore this file
e.Result() <- nil
p.Report(restic.Stat{Errors: 1})
continue
}
node, err := restic.NodeFromFileInfo(e.Fullpath(), e.Info())
if err != nil {
// TODO: integrate error reporting
debug.Log("restic.NodeFromFileInfo returned error for %v: %v", node.Path, err)
e.Result() <- nil
p.Report(restic.Stat{Errors: 1})
continue
}
// try to use old node, if present
if e.Node != nil {
debug.Log(" %v use old data", e.Path())
oldNode := e.Node.(*restic.Node)
// check if all content is still available in the repository
contentMissing := false
for _, blob := range oldNode.Content {
if !arch.repo.Index().Has(blob, restic.DataBlob) {
debug.Log(" %v not using old data, %v is missing", e.Path(), blob.Str())
contentMissing = true
break
}
}
if !contentMissing {
node.Content = oldNode.Content
debug.Log(" %v content is complete", e.Path())
}
} else {
debug.Log(" %v no old data", e.Path())
}
// otherwise read file normally
if node.Type == "file" && len(node.Content) == 0 {
debug.Log(" read and save %v, content: %v", e.Path(), node.Content)
err = arch.SaveFile(p, node)
if err != nil {
// TODO: integrate error reporting
fmt.Fprintf(os.Stderr, "error for %v: %v\n", node.Path, err)
// ignore this file
e.Result() <- nil
p.Report(restic.Stat{Errors: 1})
continue
}
} else {
// report old data size
p.Report(restic.Stat{Bytes: node.Size})
}
debug.Log(" processed %v, %d blobs", e.Path(), len(node.Content))
e.Result() <- node
p.Report(restic.Stat{Files: 1})
case <-done:
// pipeline was cancelled
return
}
}
}
