Method setupDefaults

command_setup.go:11–167

(osArgs []string)

)

func (cmd *Command) setupDefaults(osArgs []string) {
	if cmd.didSetupDefaults {
		tracef("already did setup (cmd=%[1]q)", cmd.Name)
		return
	}

	cmd.didSetupDefaults = true

	isRoot := cmd.parent == nil
	tracef("isRoot? %[1]v (cmd=%[2]q)", isRoot, cmd.Name)

	if cmd.ShellComplete == nil {
		tracef("setting default ShellComplete (cmd=%[1]q)", cmd.Name)
		cmd.ShellComplete = DefaultCompleteWithFlags
	}

	if cmd.Name == "" && isRoot {
		name := filepath.Base(osArgs[0])
		tracef("setting cmd.Name from first arg basename (cmd=%[1]q)", name)
		cmd.Name = name
	}

	if cmd.Usage == "" && isRoot {
		tracef("setting default Usage (cmd=%[1]q)", cmd.Name)
		cmd.Usage = "A new cli application"
	}

	if cmd.Version == "" {
		tracef("setting HideVersion=true due to empty Version (cmd=%[1]q)", cmd.Name)
		cmd.HideVersion = true
	}

	if cmd.Action == nil {
		tracef("setting default Action as help command action (cmd=%[1]q)", cmd.Name)
		cmd.Action = helpCommandAction
	}

	if cmd.Reader == nil {
		if cmd.parent != nil && cmd.parent.Reader != nil {
			tracef("inheriting Reader from parent (cmd=%[1]q)", cmd.Name)
			cmd.Reader = cmd.parent.Reader
		} else {
			tracef("setting default Reader as os.Stdin (cmd=%[1]q)", cmd.Name)
			cmd.Reader = os.Stdin
		}
	}

	if cmd.Writer == nil {
		if cmd.parent != nil && cmd.parent.Writer != nil {
			tracef("inheriting Writer from parent (cmd=%[1]q)", cmd.Name)
			cmd.Writer = cmd.parent.Writer
		} else {
			tracef("setting default Writer as os.Stdout (cmd=%[1]q)", cmd.Name)
			cmd.Writer = os.Stdout
		}
	}

	if cmd.ErrWriter == nil {