Add a convenient way to kill all running processes

Author: sibprogrammer

cmd/killall.go

@@ -0,0 +1,52 @@
+package cmd
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"strconv"
+	"syscall"
+
+	"github.com/spf13/cobra"
+)
+
+var killallCmd = &cobra.Command{
+	Use:   "killall",
+	Short: "Stop all the running servers",
+	Run: func(cmd *cobra.Command, args []string) {
+		servers := getServers()
+		killed := 0
+
+		for _, server := range servers {
+			pid, err := strconv.Atoi(server)
+			if err != nil {
+				fmt.Printf("Invalid PID %q: %v\n", server, err)
+				continue
+			}
+
+			process, err := os.FindProcess(pid)
+			if err != nil {
+				continue
+			}
+
+			if err := process.Signal(syscall.SIGTERM); err != nil {
+				if errors.Is(err, os.ErrProcessDone) {
+					removeStalePidFile(pid)
+				}
+				continue
+			}
+
+			killed++
+		}
+
+		fmt.Println("Total servers stopped:", killed)
+	},
+}
+
+func removeStalePidFile(pid int) {
+	userHomeDir, err := os.UserHomeDir()
+	if err != nil {
+		return
+	}
+	_ = os.Remove(fmt.Sprintf("%s/.uws.%d", userHomeDir, pid))
+}

cmd/root.go

@@ -84,6 +84,7 @@ func Execute() {
 	rootCmd.AddCommand(
 		versionCmd,
 		listCmd,
+		killallCmd,
 	)
 
 	rootCmd.PersistentFlags().BoolP("daemon", "d", false,