コード例 #1
0
ファイル: cmd_init.go プロジェクト: ckemper67/restic
func runInit(gopts GlobalOptions, args []string) error {
	if gopts.Repo == "" {
		return errors.Fatal("Please specify repository location (-r)")
	}

	be, err := create(gopts.Repo)
	if err != nil {
		return errors.Fatalf("create backend at %s failed: %v\n", gopts.Repo, err)
	}

	if gopts.password == "" {
		gopts.password, err = ReadPasswordTwice(gopts,
			"enter password for new backend: ",
			"enter password again: ")
		if err != nil {
			return err
		}
	}

	s := repository.New(be)

	err = s.Init(gopts.password)
	if err != nil {
		return errors.Fatalf("create key in backend at %s failed: %v\n", gopts.Repo, err)
	}

	Verbosef("created restic backend %v at %s\n", s.Config().ID[:10], gopts.Repo)
	Verbosef("\n")
	Verbosef("Please note that knowledge of your password is required to access\n")
	Verbosef("the repository. Losing your password means that your data is\n")
	Verbosef("irrecoverably lost.\n")

	return nil
}
コード例 #2
0
ファイル: global.go プロジェクト: restic/restic
// OpenRepository reads the password and opens the repository.
func OpenRepository(opts GlobalOptions) (*repository.Repository, error) {
	if opts.Repo == "" {
		return nil, errors.Fatal("Please specify repository location (-r)")
	}

	be, err := open(opts.Repo)
	if err != nil {
		return nil, err
	}

	s := repository.New(be)

	if opts.password == "" {
		opts.password, err = ReadPassword(opts, "enter password for repository: ")
		if err != nil {
			return nil, err
		}
	}

	err = s.SearchKey(opts.password, maxKeys)
	if err != nil {
		return nil, errors.Fatalf("unable to open repo: %v", err)
	}

	return s, nil
}
コード例 #3
0
ファイル: global.go プロジェクト: restic/restic
// ReadPassword reads the password from a password file, the environment
// variable RESTIC_PASSWORD or prompts the user.
func ReadPassword(opts GlobalOptions, prompt string) (string, error) {
	if opts.PasswordFile != "" {
		s, err := ioutil.ReadFile(opts.PasswordFile)
		return strings.TrimSpace(string(s)), errors.Wrap(err, "Readfile")
	}

	if pwd := os.Getenv("RESTIC_PASSWORD"); pwd != "" {
		return pwd, nil
	}

	var (
		password string
		err      error
	)

	if stdinIsTerminal() {
		password, err = readPasswordTerminal(os.Stdin, os.Stderr, prompt)
	} else {
		password, err = readPassword(os.Stdin)
	}

	if err != nil {
		return "", errors.Wrap(err, "unable to read password")
	}

	if len(password) == 0 {
		return "", errors.Fatal("an empty password is not a password")
	}

	return password, nil
}
コード例 #4
0
ファイル: cmd_key.go プロジェクト: ckemper67/restic
func deleteKey(repo *repository.Repository, name string) error {
	if name == repo.KeyName() {
		return errors.Fatal("refusing to remove key currently used to access repository")
	}

	err := repo.Backend().Remove(restic.KeyFile, name)
	if err != nil {
		return err
	}

	Verbosef("removed key %v\n", name)
	return nil
}
コード例 #5
0
ファイル: global.go プロジェクト: restic/restic
// ReadPasswordTwice calls ReadPassword two times and returns an error when the
// passwords don't match.
func ReadPasswordTwice(gopts GlobalOptions, prompt1, prompt2 string) (string, error) {
	pw1, err := ReadPassword(gopts, prompt1)
	if err != nil {
		return "", err
	}
	pw2, err := ReadPassword(gopts, prompt2)
	if err != nil {
		return "", err
	}

	if pw1 != pw2 {
		return "", errors.Fatal("passwords do not match")
	}

	return pw1, nil
}
コード例 #6
0
ファイル: cmd_backup.go プロジェクト: digitalcrab/restic
// filterExisting returns a slice of all existing items, or an error if no
// items exist at all.
func filterExisting(items []string) (result []string, err error) {
	for _, item := range items {
		_, err := fs.Lstat(item)
		if err != nil && os.IsNotExist(errors.Cause(err)) {
			continue
		}

		result = append(result, item)
	}

	if len(result) == 0 {
		return nil, errors.Fatal("all target directories/files do not exist")
	}

	return
}
コード例 #7
0
ファイル: cmd_list.go プロジェクト: ckemper67/restic
func runList(opts GlobalOptions, args []string) error {
	if len(args) != 1 {
		return errors.Fatalf("type not specified")
	}

	repo, err := OpenRepository(opts)
	if err != nil {
		return err
	}

	if !opts.NoLock {
		lock, err := lockRepo(repo)
		defer unlockRepo(lock)
		if err != nil {
			return err
		}
	}

	var t restic.FileType
	switch args[0] {
	case "packs":
		t = restic.DataFile
	case "index":
		t = restic.IndexFile
	case "snapshots":
		t = restic.SnapshotFile
	case "keys":
		t = restic.KeyFile
	case "locks":
		t = restic.LockFile
	default:
		return errors.Fatal("invalid type")
	}

	for id := range repo.List(t, nil) {
		Printf("%s\n", id)
	}

	return nil
}
コード例 #8
0
ファイル: cmd_check.go プロジェクト: ckemper67/restic
func runCheck(opts CheckOptions, gopts GlobalOptions, args []string) error {
	if len(args) != 0 {
		return errors.Fatal("check has no arguments")
	}

	repo, err := OpenRepository(gopts)
	if err != nil {
		return err
	}

	if !gopts.NoLock {
		Verbosef("Create exclusive lock for repository\n")
		lock, err := lockRepoExclusive(repo)
		defer unlockRepo(lock)
		if err != nil {
			return err
		}
	}

	chkr := checker.New(repo)

	Verbosef("Load indexes\n")
	hints, errs := chkr.LoadIndex()

	dupFound := false
	for _, hint := range hints {
		Printf("%v\n", hint)
		if _, ok := hint.(checker.ErrDuplicatePacks); ok {
			dupFound = true
		}
	}

	if dupFound {
		Printf("\nrun `restic rebuild-index' to correct this\n")
	}

	if len(errs) > 0 {
		for _, err := range errs {
			Warnf("error: %v\n", err)
		}
		return errors.Fatal("LoadIndex returned errors")
	}

	done := make(chan struct{})
	defer close(done)

	errorsFound := false
	errChan := make(chan error)

	Verbosef("Check all packs\n")
	go chkr.Packs(errChan, done)

	for err := range errChan {
		errorsFound = true
		fmt.Fprintf(os.Stderr, "%v\n", err)
	}

	Verbosef("Check snapshots, trees and blobs\n")
	errChan = make(chan error)
	go chkr.Structure(errChan, done)

	for err := range errChan {
		errorsFound = true
		if e, ok := err.(checker.TreeError); ok {
			fmt.Fprintf(os.Stderr, "error for tree %v:\n", e.ID.Str())
			for _, treeErr := range e.Errors {
				fmt.Fprintf(os.Stderr, "  %v\n", treeErr)
			}
		} else {
			fmt.Fprintf(os.Stderr, "error: %v\n", err)
		}
	}

	if opts.CheckUnused {
		for _, id := range chkr.UnusedBlobs() {
			Verbosef("unused blob %v\n", id.Str())
			errorsFound = true
		}
	}

	if opts.ReadData {
		Verbosef("Read all data\n")

		p := newReadProgress(gopts, restic.Stat{Blobs: chkr.CountPacks()})
		errChan := make(chan error)

		go chkr.ReadData(p, errChan, done)

		for err := range errChan {
			errorsFound = true
			fmt.Fprintf(os.Stderr, "%v\n", err)
		}
	}

	if errorsFound {
		return errors.Fatal("repository contains errors")
	}
	return nil
}
コード例 #9
0
ファイル: cmd_restore.go プロジェクト: ckemper67/restic
func runRestore(opts RestoreOptions, gopts GlobalOptions, args []string) error {
	if len(args) != 1 {
		return errors.Fatalf("no snapshot ID specified")
	}

	if opts.Target == "" {
		return errors.Fatal("please specify a directory to restore to (--target)")
	}

	if len(opts.Exclude) > 0 && len(opts.Include) > 0 {
		return errors.Fatal("exclude and include patterns are mutually exclusive")
	}

	snapshotIDString := args[0]

	debug.Log("restore %v to %v", snapshotIDString, opts.Target)

	repo, err := OpenRepository(gopts)
	if err != nil {
		return err
	}

	if !gopts.NoLock {
		lock, err := lockRepo(repo)
		defer unlockRepo(lock)
		if err != nil {
			return err
		}
	}

	err = repo.LoadIndex()
	if err != nil {
		return err
	}

	var id restic.ID

	if snapshotIDString == "latest" {
		id, err = restic.FindLatestSnapshot(repo, opts.Paths, opts.Host)
		if err != nil {
			Exitf(1, "latest snapshot for criteria not found: %v Paths:%v Host:%v", err, opts.Paths, opts.Host)
		}
	} else {
		id, err = restic.FindSnapshot(repo, snapshotIDString)
		if err != nil {
			Exitf(1, "invalid id %q: %v", snapshotIDString, err)
		}
	}

	res, err := restic.NewRestorer(repo, id)
	if err != nil {
		Exitf(2, "creating restorer failed: %v\n", err)
	}

	res.Error = func(dir string, node *restic.Node, err error) error {
		Warnf("error for %s: %+v\n", dir, err)
		return nil
	}

	selectExcludeFilter := func(item string, dstpath string, node *restic.Node) bool {
		matched, err := filter.List(opts.Exclude, item)
		if err != nil {
			Warnf("error for exclude pattern: %v", err)
		}

		return !matched
	}

	selectIncludeFilter := func(item string, dstpath string, node *restic.Node) bool {
		matched, err := filter.List(opts.Include, item)
		if err != nil {
			Warnf("error for include pattern: %v", err)
		}

		return matched
	}

	if len(opts.Exclude) > 0 {
		res.SelectFilter = selectExcludeFilter
	} else if len(opts.Include) > 0 {
		res.SelectFilter = selectIncludeFilter
	}

	Verbosef("restoring %s to %s\n", res.Snapshot(), opts.Target)

	return res.RestoreTo(opts.Target)
}
コード例 #10
0
ファイル: cmd_cat.go プロジェクト: ckemper67/restic
func runCat(gopts GlobalOptions, args []string) error {
	if len(args) < 1 || (args[0] != "masterkey" && args[0] != "config" && len(args) != 2) {
		return errors.Fatalf("type or ID not specified")
	}

	repo, err := OpenRepository(gopts)
	if err != nil {
		return err
	}

	lock, err := lockRepo(repo)
	defer unlockRepo(lock)
	if err != nil {
		return err
	}

	tpe := args[0]

	var id restic.ID
	if tpe != "masterkey" && tpe != "config" {
		id, err = restic.ParseID(args[1])
		if err != nil {
			if tpe != "snapshot" {
				return errors.Fatalf("unable to parse ID: %v\n", err)
			}

			// find snapshot id with prefix
			id, err = restic.FindSnapshot(repo, args[1])
			if err != nil {
				return err
			}
		}
	}

	// handle all types that don't need an index
	switch tpe {
	case "config":
		buf, err := json.MarshalIndent(repo.Config(), "", "  ")
		if err != nil {
			return err
		}

		fmt.Println(string(buf))
		return nil
	case "index":
		buf, err := repo.LoadAndDecrypt(restic.IndexFile, id)
		if err != nil {
			return err
		}

		_, err = os.Stdout.Write(append(buf, '\n'))
		return err

	case "snapshot":
		sn := &restic.Snapshot{}
		err = repo.LoadJSONUnpacked(restic.SnapshotFile, id, sn)
		if err != nil {
			return err
		}

		buf, err := json.MarshalIndent(&sn, "", "  ")
		if err != nil {
			return err
		}

		fmt.Println(string(buf))

		return nil
	case "key":
		h := restic.Handle{Type: restic.KeyFile, Name: id.String()}
		buf, err := backend.LoadAll(repo.Backend(), h, nil)
		if err != nil {
			return err
		}

		key := &repository.Key{}
		err = json.Unmarshal(buf, key)
		if err != nil {
			return err
		}

		buf, err = json.MarshalIndent(&key, "", "  ")
		if err != nil {
			return err
		}

		fmt.Println(string(buf))
		return nil
	case "masterkey":
		buf, err := json.MarshalIndent(repo.Key(), "", "  ")
		if err != nil {
			return err
		}

		fmt.Println(string(buf))
		return nil
	case "lock":
		lock, err := restic.LoadLock(repo, id)
		if err != nil {
			return err
		}

		buf, err := json.MarshalIndent(&lock, "", "  ")
		if err != nil {
			return err
		}

		fmt.Println(string(buf))

		return nil
	}

	// load index, handle all the other types
	err = repo.LoadIndex()
	if err != nil {
		return err
	}

	switch tpe {
	case "pack":
		h := restic.Handle{Type: restic.DataFile, Name: id.String()}
		buf, err := backend.LoadAll(repo.Backend(), h, nil)
		if err != nil {
			return err
		}

		hash := restic.Hash(buf)
		if !hash.Equal(id) {
			fmt.Fprintf(stderr, "Warning: hash of data does not match ID, want\n  %v\ngot:\n  %v\n", id.String(), hash.String())
		}

		_, err = os.Stdout.Write(buf)
		return err

	case "blob":
		for _, t := range []restic.BlobType{restic.DataBlob, restic.TreeBlob} {
			list, err := repo.Index().Lookup(id, t)
			if err != nil {
				continue
			}
			blob := list[0]

			buf := make([]byte, blob.Length)
			n, err := repo.LoadBlob(restic.DataBlob, id, buf)
			if err != nil {
				return err
			}
			buf = buf[:n]

			_, err = os.Stdout.Write(buf)
			return err
		}

		return errors.Fatal("blob not found")

	case "tree":
		debug.Log("cat tree %v", id.Str())
		tree, err := repo.LoadTree(id)
		if err != nil {
			debug.Log("unable to load tree %v: %v", id.Str(), err)
			return err
		}

		buf, err := json.MarshalIndent(&tree, "", "  ")
		if err != nil {
			debug.Log("error json.MarshalIndent(): %v", err)
			return err
		}

		_, err = os.Stdout.Write(append(buf, '\n'))
		return nil

	default:
		return errors.Fatal("invalid type")
	}
}