complete original config support for sing, fix DelUsers for vless

core/sing/sing.go

@@ -3,6 +3,7 @@ package sing
 import (
 	"context"
 	"fmt"
+	"github.com/goccy/go-json"
 	"io"
 	"os"
 	"runtime/debug"
@@ -41,6 +42,17 @@ func init() {
 
 func New(c *conf.CoreConfig) (vCore.Core, error) {
 	options := option.Options{}
+	if len(c.SingConfig.OriginalPath) != 0 {
+		f, err := os.Open(c.SingConfig.OriginalPath)
+		if err != nil {
+			return nil, fmt.Errorf("open original config error: %s", err)
+		}
+		defer f.Close()
+		err = json.NewDecoder(f).Decode(options)
+		if err != nil {
+			return nil, fmt.Errorf("decode original config error: %s", err)
+		}
+	}
 	options.Log = &option.LogOptions{
 		Disabled:  c.SingConfig.LogConfig.Disabled,
 		Level:     c.SingConfig.LogConfig.Level,