1. const fs = require('fs')
    2. var request = require('request')
    3. const zlib = require('zlib')
    4. const log = require('./log.js')
    5. const fileType = ''
    7. let endCount = 0
    9. module.exports = (item) => {
    10.   return new Promise((resolve, reject) => {
    11.     request.get(item.url)
    12.     .on('error', (error) => {
    13.       log.error(`下载失败${item.name}`)
    14.       reject(error)
    15.     })
    16.     .pipe(zlib.createGunzip())
    17.     .pipe(fs.createWriteStream(item.name + fileType))
    18.     .on('finish', (res) => {
    19.       log.info(`${++endCount} 完成下载 ${item.name + fileType}`)
    20.       resolve(res)
    21.     })
    22.   })
    23. }