[feat] Prompt user and exit if process on macOS is not running with s…

…udo privileges

cmd/app.go

@@ -6,6 +6,7 @@ import (
  "fmt"
  "os"
  "os/signal"
+ "os/user"
  "runtime"
  "strconv"
  "strings"
@@ -46,6 +47,15 @@ func Main() {
  klog.Infof("FLAG: --%s=%q", flag.Name, flag.Value)
  })
 
+ // Process on macOS must run using sudo
+ if runtime.GOOS == "darwin" {
+ currentUser, _ := user.Current()
+ if currentUser.Uid != "0" {
+ fmt.Println("Please run this again with `sudo`.")
+ os.Exit(1)
+ }
+ }
+
  // trap Ctrl+C and call cancel on the context
  ctx := context.Background()
  ctx, cancel := context.WithCancel(ctx)