layout: Add String() and Name()

src/restic/backend/layout.go

@@ -17,6 +17,7 @@ type Layout interface {
 	Dirname(restic.Handle) string
 	Basedir(restic.FileType) string
 	Paths() []string
+	Name() string
 }
 
 // Filesystem is the abstraction of a file system used for a backend.

src/restic/backend/layout_default.go

@@ -19,6 +19,15 @@ var defaultLayoutPaths = map[restic.FileType]string{
 	restic.KeyFile:      "keys",
 }
 
+func (l *DefaultLayout) String() string {
+	return "<DefaultLayout>"
+}
+
+// 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]

src/restic/backend/layout_rest.go

@@ -11,6 +11,15 @@ type RESTLayout struct {
 
 var restLayoutPaths = defaultLayoutPaths
 
+func (l *RESTLayout) String() string {
+	return "<RESTLayout>"
+}
+
+// Name returns the name for this layout.
+func (l *RESTLayout) Name() string {
+	return "rest"
+}
+
 // Dirname returns the directory path for a given file type and name.
 func (l *RESTLayout) Dirname(h restic.Handle) string {
 	if h.Type == restic.ConfigFile {

src/restic/backend/layout_s3legacy.go

@@ -18,6 +18,15 @@ var s3LayoutPaths = map[restic.FileType]string{
 	restic.KeyFile:      "key",
 }
 
+func (l *S3LegacyLayout) String() string {
+	return "<S3LegacyLayout>"
+}
+
+// Name returns the name for this layout.
+func (l *S3LegacyLayout) Name() string {
+	return "s3legacy"
+}
+
 // join calls Join with the first empty elements removed.
 func (l *S3LegacyLayout) join(url string, items ...string) string {
 	for len(items) > 0 && items[0] == "" {