backend: remove unused Paths variable

internal/backend/paths.go

@@ -2,25 +2,6 @@ package backend
 
 import "os"
 
-// Paths contains the default paths for file-based backends (e.g. local).
-var Paths = struct {
-	Data      string
-	Snapshots string
-	Index     string
-	Locks     string
-	Keys      string
-	Temp      string
-	Config    string
-}{
-	"data",
-	"snapshots",
-	"index",
-	"locks",
-	"keys",
-	"tmp",
-	"config",
-}
-
 type Modes struct {
 	Dir  os.FileMode
 	File os.FileMode

internal/backend/sftp/sftp.go

@@ -152,7 +152,7 @@ func open(ctx context.Context, sftp *SFTP, cfg Config) (*SFTP, error) {
 
 	debug.Log("layout: %v\n", sftp.Layout)
 
-	fi, err := sftp.c.Stat(Join(cfg.Path, backend.Paths.Config))
+	fi, err := sftp.c.Stat(sftp.Layout.Filename(restic.Handle{Type: restic.ConfigFile}))
 	m := backend.DeriveModesFromFileInfo(fi, err)
 	debug.Log("using (%03O file, %03O dir) permissions", m.File, m.Dir)
 
@@ -252,7 +252,7 @@ func Create(ctx context.Context, cfg Config) (*SFTP, error) {
 	sftp.Modes = backend.DefaultModes
 
 	// test if config file already exists
-	_, err = sftp.c.Lstat(Join(cfg.Path, backend.Paths.Config))
+	_, err = sftp.c.Lstat(sftp.Layout.Filename(restic.Handle{Type: restic.ConfigFile}))
 	if err == nil {
 		return nil, errors.New("config file already exists")
 	}