/**
* Determine whether our CLI output is to a TTY (terminal). I.e. suitable for formatting.
*
* @return bool
*/
protected static function is_tty()
{
if (self::$tty !== null) {
return self::$tty;
}
if (!self::is_cli()) {
return self::$tty = false;
}
if (!function_exists('posix_isatty')) {
return self::$tty = (bool) self::$format_if_cannot_detect_tty;
}
return self::$tty = posix_isatty((bool) STDOUT);
}
