@ytsteven/vue-cli-plugin-electron-builder/lib/installVueDevtools/utils.js

Easily Build Your Vue.js App For Desktop With Electron

import electron, { remote } from 'electron'
import fs from 'fs'
import https from 'https'
import path from 'path'

export const getPath = () => {
  const savePath = (remote || electron).app.getPath('userData')
  return path.resolve(`${savePath}/extensions`)
}

// Use https.get fallback for Electron < 1.4.5
const { net } = remote || electron
const request = net ? net.request : https.get

export const downloadFile = (from, to) =>
  new Promise((resolve, reject) => {
    const req = request(from)
    req.on('login', (authInfo, callback) => {
      callback(process.env.VUE_DEVTOOLS_PROXY_USER, process.env.VUE_DEVTOOLS_PROXY_PASSWORD)
    })
    req.on('response', res => {
      // Shouldn't handle redirect with `electron.net`, this is for https.get fallback
      if (
        res.statusCode >= 300 &&
        res.statusCode < 400 &&
        res.headers.location
      ) {
        return downloadFile(res.headers.location, to)
          .then(resolve)
          .catch(reject)
      }
      res.pipe(fs.createWriteStream(to)).on('close', resolve)
    })
    req.on('error', reject)
    req.end()
  })

export const changePermissions = (dir, mode) => {
  const files = fs.readdirSync(dir)
  files.forEach(file => {
    const filePath = path.join(dir, file)
    fs.chmodSync(filePath, parseInt(mode, 8))
    if (fs.statSync(filePath).isDirectory()) {
      changePermissions(filePath, mode)
    }
  })
}