package backend import ( "encoding/hex" "github.com/restic/restic/internal/restic" ) // DefaultLayout implements the default layout for local and sftp backends, as // described in the Design document. The `data` directory has one level of // subdirs, two characters each (taken from the first two characters of the // file name). type DefaultLayout struct { Path string Join func(...string) string } var defaultLayoutPaths = map[restic.FileType]string{ restic.DataFile: "data", restic.SnapshotFile: "snapshots", restic.IndexFile: "index", restic.LockFile: "locks", restic.KeyFile: "keys", } func (l *DefaultLayout) String() string { return "" } // Name returns the name for this layout. func (l *DefaultLayout) Name() string { return "default" } // Dirname returns the directory path for a given file type and name. func (l *DefaultLayout) Dirname(h restic.Handle) string { p := defaultLayoutPaths[h.Type] if h.Type == restic.DataFile && len(h.Name) > 2 { p = l.Join(p, h.Name[:2]) + "/" } return l.Join(l.Path, p) + "/" } // Filename returns a path to a file, including its name. func (l *DefaultLayout) Filename(h restic.Handle) string { name := h.Name if h.Type == restic.ConfigFile { return l.Join(l.Path, "config") } return l.Join(l.Dirname(h), name) } // Paths returns all directory names needed for a repo. func (l *DefaultLayout) Paths() (dirs []string) { for _, p := range defaultLayoutPaths { dirs = append(dirs, l.Join(l.Path, p)) } // also add subdirs for i := 0; i < 256; i++ { subdir := hex.EncodeToString([]byte{byte(i)}) dirs = append(dirs, l.Join(l.Path, defaultLayoutPaths[restic.DataFile], subdir)) } return dirs } // Basedir returns the base dir name for type t. func (l *DefaultLayout) Basedir(t restic.FileType) (dirname string, subdirs bool) { if t == restic.DataFile { subdirs = true } dirname = l.Join(l.Path, defaultLayoutPaths[t]) return }