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
}
// 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)
}
// 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)
}