Beispiel #1
0
func (res *Restorer) restoreNodeTo(node *Node, dir string, dst string) error {
	debug.Log("node %v, dir %v, dst %v", node.Name, dir, dst)
	dstPath := filepath.Join(dst, dir, node.Name)

	err := node.CreateAt(dstPath, res.repo)
	if err != nil {
		debug.Log("node.CreateAt(%s) error %v", dstPath, err)
	}

	// Did it fail because of ENOENT?
	if err != nil && os.IsNotExist(errors.Cause(err)) {
		debug.Log("create intermediate paths")

		// Create parent directories and retry
		err = fs.MkdirAll(filepath.Dir(dstPath), 0700)
		if err == nil || os.IsExist(errors.Cause(err)) {
			err = node.CreateAt(dstPath, res.repo)
		}
	}

	if err != nil {
		debug.Log("error %v", err)
		err = res.Error(dstPath, node, err)
		if err != nil {
			return err
		}
	}

	debug.Log("successfully restored %v", node.Name)

	return nil
}
Beispiel #2
0
// Create creates all the necessary files and directories for a new local
// backend at dir. Afterwards a new config blob should be created.
func Create(dir string) (*Local, error) {
	// test if config file already exists
	_, err := fs.Lstat(filepath.Join(dir, backend.Paths.Config))
	if err == nil {
		return nil, errors.New("config file already exists")
	}

	// create paths for data, refs and temp
	for _, d := range paths(dir) {
		err := fs.MkdirAll(d, backend.Modes.Dir)
		if err != nil {
			return nil, errors.Wrap(err, "MkdirAll")
		}
	}

	// open backend
	return Open(dir)
}
Beispiel #3
0
// Save stores data in the backend at the handle.
func (b *Local) Save(h restic.Handle, p []byte) (err error) {
	debug.Log("Save %v, length %v", h, len(p))
	if err := h.Valid(); err != nil {
		return err
	}

	tmpfile, err := writeToTempfile(filepath.Join(b.p, backend.Paths.Temp), p)
	debug.Log("saved %v (%d bytes) to %v", h, len(p), tmpfile)
	if err != nil {
		return err
	}

	filename := filename(b.p, h.Type, h.Name)

	// test if new path already exists
	if _, err := fs.Stat(filename); err == nil {
		return errors.Errorf("Rename(): file %v already exists", filename)
	}

	// create directories if necessary, ignore errors
	if h.Type == restic.DataFile {
		err = fs.MkdirAll(filepath.Dir(filename), backend.Modes.Dir)
		if err != nil {
			return errors.Wrap(err, "MkdirAll")
		}
	}

	err = fs.Rename(tmpfile, filename)
	debug.Log("save %v: rename %v -> %v: %v",
		h, filepath.Base(tmpfile), filepath.Base(filename), err)

	if err != nil {
		return errors.Wrap(err, "Rename")
	}

	// set mode to read-only
	fi, err := fs.Stat(filename)
	if err != nil {
		return errors.Wrap(err, "Stat")
	}

	return setNewFileMode(filename, fi)
}