chore: set default root folder in driver config

drivers/local/meta.go

@@ -10,10 +10,11 @@ type Addition struct {
 }
 
 var config = driver.Config{
-	Name:      "Local",
-	OnlyLocal: true,
-	LocalSort: true,
-	NoCache:   true,
+	Name:        "Local",
+	OnlyLocal:   true,
+	LocalSort:   true,
+	NoCache:     true,
+	DefaultRoot: "/",
 }
 
 func New() driver.Driver {

internal/driver/addition.go

@@ -27,11 +27,11 @@ type IRootFolderId interface {
 }
 
 type RootFolderPath struct {
-	RootFolder string `json:"root_folder" help:"root folder path" default:"/"`
+	RootFolder string `json:"root_folder" required:"true" help:"root folder path"`
 }
 
 type RootFolderId struct {
-	RootFolder string `json:"root_folder" help:"root folder id"`
+	RootFolder string `json:"root_folder" required:"true" help:"root folder id"`
 }
 
 func (r RootFolderPath) GetRootFolderPath() string {

internal/driver/config.go

@@ -1,12 +1,13 @@
 package driver
 
 type Config struct {
-	Name      string
-	LocalSort bool
-	OnlyLocal bool
-	OnlyProxy bool
-	NoCache   bool
-	NoUpload  bool
+	Name        string
+	LocalSort   bool
+	OnlyLocal   bool
+	OnlyProxy   bool
+	NoCache     bool
+	NoUpload    bool
+	DefaultRoot string
 }
 
 func (c Config) MustProxy() bool {

internal/operations/driver.go

@@ -45,7 +45,7 @@ func registerDriverItems(config driver.Config, addition driver.Additional) {
 	log.Debugf("addition of %s: %+v", config.Name, addition)
 	tAddition := reflect.TypeOf(addition)
 	mainItems := getMainItems(config)
-	additionalItems := getAdditionalItems(tAddition)
+	additionalItems := getAdditionalItems(tAddition, config.DefaultRoot)
 	driverItemsMap[config.Name] = driver.Items{
 		Main:       mainItems,
 		Additional: additionalItems,
@@ -109,12 +109,12 @@ func getMainItems(config driver.Config) []driver.Item {
 	return items
 }
 
-func getAdditionalItems(t reflect.Type) []driver.Item {
+func getAdditionalItems(t reflect.Type, defaultRoot string) []driver.Item {
 	var items []driver.Item
 	for i := 0; i < t.NumField(); i++ {
 		field := t.Field(i)
 		if field.Type.Kind() == reflect.Struct {
-			items = append(items, getAdditionalItems(field.Type)...)
+			items = append(items, getAdditionalItems(field.Type, defaultRoot)...)
 			continue
 		}
 		tag := field.Tag
@@ -133,6 +133,9 @@ func getAdditionalItems(t reflect.Type) []driver.Item {
 		if tag.Get("type") != "" {
 			item.Type = tag.Get("type")
 		}
+		if item.Name == "root_folder" && item.Default == "" {
+			item.Default = defaultRoot
+		}
 		// set default type to string
 		if item.Type == "" {
 			item.Type = "string"