zoro-cli/lib/plugins/config-web/template/mock/anyproxy.js

https://github.com/vuejs/vue-cli

const watch = require('watch')
const execa = require('execa')
const chalk = require('chalk')
const fs = require('fs')
const path = require('path')
const { info } = require('zoro-cli-util/logger')

const portFile = path.join(process.cwd(), '.port')
if (!fs.existsSync(portFile)) {
  console.error(`请先运行 ${chalk.cyan('npm run dev')} 启动 local 服务器`)
  process.exit(0)
}

let anyproxyProcess
const startAnyproxy = () => {
  let action = 'start'
  if (anyproxyProcess) {
    action = 'restart'
    // .off is not available until node 10...
    anyproxyProcess.removeListener('exit', startAnyproxy)
    anyproxyProcess.kill('SIGINT')
    anyproxyProcess = null
  }
  if (!anyproxyProcess) {
    info(`${action}: proxy server at port 6001, web server at port 6002`)
    info()
    anyproxyProcess = execa.shell(
      'anyproxy --rule ./mock/anyproxy.config.js --port 6001 --web 6002',
      {
        stdio: 'inherit',
      }
    )
    anyproxyProcess.on('exit', startAnyproxy)
  }
}

// watch file tree and restart anyproxy
watch.watchTree(
  __dirname,
  {
    // Specifies the interval duration in seconds, the time period between polling for file changes.
    interval: 3,
    // do not ignore .port
    ignoreDotFiles: false,
    ignoreUnreadableDir: true,
    ignoreNotPermitted: true,
  },
  startAnyproxy
)