Method findBestOptionFromValue

lib/command.js:2085–2103

(option)

    // The calling code does not know whether a negated option is the source of the
    // value, so do some work to take an educated guess.
    const findBestOptionFromValue = (option) => {
      const optionKey = option.attributeName();
      const optionValue = this.getOptionValue(optionKey);
      const negativeOption = this.options.find(
        (target) => target.negate && optionKey === target.attributeName(),
      );
      const positiveOption = this.options.find(
        (target) => !target.negate && optionKey === target.attributeName(),
      );
      if (
        negativeOption &&
        ((negativeOption.presetArg === undefined && optionValue === false) ||
          (negativeOption.presetArg !== undefined &&
            optionValue === negativeOption.presetArg))
      ) {
        return negativeOption;
      }
      return positiveOption || option;
    };

    const getErrorMessage = (option) => {
      const bestOption = findBestOptionFromValue(option);