const fs = require('fs') const promisify = require('@gar/promisify') const isLower = (s) => s === s.toLowerCase() && s !== s.toUpperCase() const fsSync = Object.fromEntries(Object.entries(fs).filter(([k, v]) => typeof v === 'function' && (k.endsWith('Sync') || !isLower(k[0])) )) // this module returns the core fs async fns wrapped in a proxy that promisifies // method calls within the getter. we keep it in a separate module so that the // overridden methods have a consistent way to get to promisified fs methods // without creating a circular dependency. the ctors and sync methods are kept untouched module.exports = { ...promisify(fs), ...fsSync }