feat: support to suspend

cmd/reload.go

@@ -6,26 +6,42 @@
 package cmd
 
 import (
+	"fmt"
 	"github.com/spf13/cobra"
+	"github.com/v2rayA/dae/cmd/internal"
 	"os"
 	"strconv"
+	"strings"
 	"syscall"
 )
 
 var (
 	reloadCmd = &cobra.Command{
-		Use: "reload pid",
+		Use: "reload [pid]",
 		Run: func(cmd *cobra.Command, args []string) {
+			internal.AutoSu()
 			if len(args) == 0 {
-				cmd.Help()
-				os.Exit(1)
+				_pid, err := os.ReadFile(PidFilePath)
+				if err != nil {
+					fmt.Println("Failed to read pid file:", err)
+					os.Exit(1)
+				}
+				args = []string{strings.TrimSpace(string(_pid))}
 			}
 			pid, err := strconv.Atoi(args[0])
 			if err != nil {
 				cmd.Help()
 				os.Exit(1)
 			}
-			syscall.Kill(pid, syscall.SIGUSR1)
+			if err = syscall.Kill(pid, syscall.SIGUSR1); err != nil {
+				fmt.Println(err)
+				os.Exit(1)
+			}
+			fmt.Println("OK")
 		},
 	}
 )
+
+func init() {
+	rootCmd.AddCommand(reloadCmd)
+}