@antmove/wx-alipay/utils/updataTool/index.js

transform wechat miniprogram to alipay miniprogram tool.

/* eslint-disable no-undef */

const path = require('path')
const chalk = require('chalk')
const fs = require('fs-extra')
const axios = require('axios')

module.exports = async function(config = {}) {
  const fileGet = (filePath) => {
    return axios({
      url: `${config.baseurl}${filePath}`,
      method: 'GET',
      responseType: 'stream',
    })
  }

  const downloadFile = async function(fileurl, filepath, name) {
    if (!fs.existsSync(filepath)) {
      fs.mkdirSync(filepath)
    }
    const mypath = path.resolve(filepath, name)
    const writer = fs.createWriteStream(mypath)
    const response = await fileGet(fileurl)

    await response.data.pipe(writer)

    return writer
  }
  const getContent = (rs) => {
    const buffers = []; let
      nread = 0
    return new Promise((resolve, reject) => {
      try {
        rs.on('data', (chuck) => {
          buffers.push(chuck)
          nread += chuck.length
        }).on('end', () => {
          let buffer = null; let
            pos = 0
          switch (buffers.length) {
            case 0:
              /* eslint-disable new-cap*/
              buffer = new Buffer.alloc(0)
              break
            case 1:
              buffer = buffers[0]
              break
            default:
              buffer = new Buffer.alloc(nread)
              /* eslint-enable new-cap*/
              buffers.forEach((chunk) => {
                chunk.copy(buffer, pos)
                pos += chunk.length
              })
              break
          }
          const data = buffer.toString()
          resolve(JSON.parse(data))
        })
      } catch (err) {
        reject(err)
      }
    })
  }
  const { isUpdata = true, showReport = false } = config
  const progectPath = path.join(__dirname, '../..')
  if (!isUpdata) {
    return false
  }
  // 获取 version 
  const result = await fileGet('/version.json')

  const resultData = await getContent(result.data)
   
  const versionPath = path.join(progectPath, 'ant-move_v_s.json')
  let versionData = {}
  if (fs.existsSync(versionPath)) {
    versionData = JSON.parse(fs.readFileSync(versionPath))
  }
  const resData = { ...resultData }
  const downFileArr = []
  const removeFlieArr = []
  for (const key in resData) {
    if (resData[key] !== versionData[key]) {
      downFileArr.push(key)
    }
  }
  for (const key in versionData) {
    if (!resData[key]) {
      removeFlieArr.push(key)
    }
  }
    
  // 删除本地多余的文件
  removeFlieArr.forEach((item) => {
    const filePath = path.join(progectPath, item.substr(1))
    if (fs.existsSync(filePath)) {
      fs.unlinkSync(filePath)
      if (showReport) {
        // console.log( "移除："+'\033[40;32m '+ item +' \033[0m');
        console.log(`移除：${chalk.green(`${item}`)}`)
      }
    }
  })

  // 更新本地文件
  if (downFileArr.length > 0) {
    let i = 0
    const updata = async function(item) {
      const dirNameArr = item.split('/')
      let filePath = progectPath
      dirNameArr.forEach((its, index) => {
        if (index < dirNameArr.length - 1) {
          filePath = path.join(filePath, its)
          if (!fs.existsSync(filePath)) {
            fs.mkdirSync(filePath)
          }
        }
      })
      const fileName = dirNameArr[dirNameArr.length - 1]
      downloadFile(item, filePath, fileName)
      if (i <= downFileArr.length - 1) {
        await updata(downFileArr[i++])
      } else {
        downloadFile('/version.json', progectPath, 'ant-move_v_s.json')
      }
    }
    await updata(downFileArr[i++])
  }
}