All files compose.js

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/**
 * @description - override defaults params with external, which should skip undefined override
 * @author - huang.jian <hjj491229492@hotmail.com>
 *
 * @param {object} params - param from cli, maybe undefined value
 * @param {object} defaults - base params
 *
 * @todo - params validate
 */
function compose(params, defaults = {}) {
  const keys = Reflect.ownKeys(params).filter((key) => Reflect.get(params, key));
  const usefulParams = keys.reduce((acc, key) => Object.assign(
    {}, acc, { [key]: Reflect.get(params, key) })
    , {}
  );
 
  return Object.assign({}, defaults, usefulParams);
}
 
module.exports = compose;