func main()

in cmd/apmtelemetrygen/main.go [33:76]
40 lines of code
6 McCabe index (conditional complexity)

func main() {
	ctx, cancel := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
	defer cancel()

	// Register root command in cobra
	var rootCmd = &cobra.Command{
		Use:              "apmtelemetrygen",
		TraverseChildren: true,
		PersistentPreRunE: func(cmd *cobra.Command, _ []string) error {
			var err error
			cmd.Flags().VisitAll(func(flag *pflag.Flag) {
				optionName := strings.ToUpper(flag.Name)
				optionName = strings.ReplaceAll(optionName, "-", "_")
				envVar := envVarPrefix + optionName
				if val, ok := os.LookupEnv(envVar); !flag.Changed && ok {
					if flagErr := flag.Value.Set(val); flagErr != nil {
						err = fmt.Errorf("invalid environment variable %s: %w", envVar, flagErr)
					}
				}
			})
			return err
		},
	}
	rootCmd.AddCommand(newRunCmd())
	rootCmd.AddCommand(&cobra.Command{
		Use:   "version",
		Short: "Show current version info",
		Run: func(cmd *cobra.Command, _ []string) {
			var buf bytes.Buffer
			fmt.Fprintf(&buf, "%s %s", version.CommitSha(), version.BuildTime())
			fmt.Fprintf(cmd.OutOrStdout(), "%s version %s (%s/%s) [%s]\n",
				rootCmd.Name(), version.Version, runtime.GOOS, runtime.GOARCH,
				buf.String(),
			)
		},
	})

	// Execute commands
	if err := rootCmd.ExecuteContext(ctx); err != nil {
		if !errors.Is(err, context.Canceled) {
			fmt.Println(err)
		}
	}
}