import isPlainObject from 'is-plain-obj'; import {FD_SPECIFIC_OPTIONS} from '../arguments/specific.js'; // Deep merge specific options like `env`. Shallow merge the other ones. export const mergeOptions = (boundOptions, options) => { const newOptions = Object.fromEntries( Object.entries(options).map(([optionName, optionValue]) => [ optionName, mergeOption(optionName, boundOptions[optionName], optionValue), ]), ); return {...boundOptions, ...newOptions}; }; const mergeOption = (optionName, boundOptionValue, optionValue) => { if (DEEP_OPTIONS.has(optionName) && isPlainObject(boundOptionValue) && isPlainObject(optionValue)) { return {...boundOptionValue, ...optionValue}; } return optionValue; }; const DEEP_OPTIONS = new Set(['env', ...FD_SPECIFIC_OPTIONS]);