fix: adjust validateOptions to handle preconfigured width

[csabahenk]

fixes #666

[ccoVeille]

Suggested change

	width_in_config := viper.InConfig("width")
	widthInConfig := viper.InConfig("width")

[ccoVeille]

Typo in commit and PR title

validateOptions not validaOptions

[ccoVeille]

What about this:

func validateOptions(cmd *cobra.Command) error {
	width = viper.GetUint("width")
	mouse = viper.GetBool("mouse")
	pager = viper.GetBool("pager")
	showAllFiles = viper.GetBool("all")
	preserveNewLines = viper.GetBool("preserveNewLines")

	// validate the glamour style
	style = viper.GetString("style")
	if err := validateStyle(style); err != nil {
		return err
	}

	isTerminal := term.IsTerminal(int(os.Stdout.Fd()))
	// We want to use a special no-TTY style, when stdout is not a terminal
	// and there was no specific style passed by arg
	if !isTerminal && !cmd.Flags().Changed("style") {
		style = "notty"
	}

	// Detect terminal width
	if cmd.Flags().Changed("width") {
		return nil
	}
	if isTerminal {
		w, _, err := term.GetSize(int(os.Stdout.Fd()))
		if err == nil {
			width = uint(max(w, 120))
			return nil
		}
	}

	// grab config values from Viper
	widthInConfig := viper.InConfig("width")
	if !widthInConfig {
		width = 80
	}
	return nil
}

I wrote it on my phone in text mode, please test it and adapt

[csabahenk]

Fine and dandy, apart from having to have min(w, 120), not max :)

[ccoVeille]

I'm glad you find it dandy 😁

Adding a Co-authored-by tag to your commit would be appreciated then

Co-authored-by: ccoVeille <3875889+ccoVeille@users.noreply.github.com>

Indeed for the min vs max