spider files

'use strict'

const fs = require('fs')
const path = require('path')
const rootFolder = __dirname // Your folder

const spider = (folder = rootFolder, state = []) => {
    fs.readdirSync(folder).forEach(file => {
        let dir = path.join(folder, file),
            isDir = fs.lstatSync(dir).isDirectory()

        let children = isDir ? spider(dir) : null

        state.push({
            file: file,
            isDir: isDir,
            chidlren: children
        })
    })

    state.sort(a => a.isDir ? -1 : 1)

    return state
}

/*
    Индексируем все папки
 */
const tree = spider()

console.log(tree)