feat: get type from field's type

drivers/local/meta.go

@@ -3,7 +3,7 @@ package local
 import "github.com/alist-org/alist/v3/internal/driver"
 
 type Addition struct {
-	RootFolder string `json:"root_folder" type:"string" help:"root folder path" default:"/"`
+	RootFolder string `json:"root_folder" help:"root folder path" default:"/"`
 }
 
 var config = driver.Config{

internal/driver/addition.go

@@ -2,6 +2,15 @@ package driver
 
 type Additional interface{}
 
+type Select string
+
+const (
+	TypeString = "string"
+	TypeSelect = "select"
+	TypeBool   = "bool"
+	TypeText   = "text"
+)
+
 type Item struct {
 	Name     string `json:"name"`
 	Type     string `json:"type"`

internal/driver/manage.go

@@ -3,6 +3,7 @@ package driver
 import (
 	log "github.com/sirupsen/logrus"
 	"reflect"
+	"strings"
 )
 
 type New func() Driver
@@ -73,19 +74,23 @@ func getMainItems(config Config) []Item {
 func getAdditionalItems(t reflect.Type) []Item {
 	var items []Item
 	for i := 0; i < t.NumField(); i++ {
-		tag := t.Field(i).Tag
+		field := t.Field(i)
+		tag := field.Tag
 		ignore, ok := tag.Lookup("ignore")
 		if !ok || ignore == "false" {
 			continue
 		}
 		item := Item{
 			Name:     tag.Get("json"),
-			Type:     tag.Get("type"),
+			Type:     strings.ToLower(field.Name),
 			Default:  tag.Get("default"),
 			Values:   tag.Get("values"),
 			Required: tag.Get("required") == "true",
 			Help:     tag.Get("help"),
 		}
+		if tag.Get("type") != "" {
+			item.Type = tag.Get("type")
+		}
 		// set default type to string
 		if item.Type == "" {
 			item.Type = "string"