func showUsage()

in tools/mig-scaler/help.go [60:85]

• 21 lines of code
• 6 McCabe index (conditional complexity)

func showUsage(cfg *Config) {
	// Standard pflags.PrintDefaults isn't very helpful as it doesn't
	// understand commands. This will be called on an error, such as an
	// unknown flag, so keep the instructions short. Direct the user to the
	// help pages, try and include the topic if possible.
	topic := getHelpTopic(cfg)
	if topic == "main" || topic == "help" {
		topic = ""
	}
	if topic != "" && !topicExists(topic) {
		topic = ""
	}

	if topic == "" {
		fmt.Fprint(os.Stderr,
			"For a list of supported commands run:\n"+
				"    mig-scaler help\n",
		)
	} else {
		fmt.Fprintf(os.Stderr,
			"For a list of supported commands run:\n"+
				"    mig-scaler help %s\n",
			topic,
		)
	}
}