func CommandNotFound()

in pkg/util/commandNotFound.go [30:60]

• 30 lines of code
• 8 McCabe index (conditional complexity)

func CommandNotFound(c *cli.Context, s string) {
	suppose := make([]string, 0)
	var parentCommand string
	if len(c.Lineage()) == 1 {
		parentCommand = "swctl"
	} else {
		parentCommand = c.Lineage()[1].Args().First()
	}
	fmt.Printf("Error: unknown command \"%s\" for \"%s\" \n\n", s, parentCommand)
	// Record commands whose edit distance is less than GAP to suppose.
	for index := range c.App.Commands {
		commandName := c.App.Commands[index].Name
		distance := minEditDistance(commandName, s)
		if distance <= GAP && commandName != "help" {
			suppose = append(suppose, commandName)
		}
	}
	if len(suppose) != 0 {
		fmt.Println("Do you mean this?")
		for index := range suppose {
			fmt.Printf("\t%s\n", suppose[index])
		}
		fmt.Println()
	}
	if len(c.Lineage()) == 1 {
		fmt.Printf("Run '%s --help' for usage.\n", parentCommand)
	} else {
		fmt.Printf("Run 'swctl %s --help' for usage.\n", parentCommand)
	}
	os.Exit(1)
}