@linahome/cli/utils/handlePull.js

lina components manage

const ora = require('ora')
const shell = require('shelljs')
const inquirer = require('inquirer')
const fly = require('flyio')
const fs = require('fs')

const {
  mkdir,
  cd,
  exec,
  pwd,
  rm,
  mv
} = shell
// ora容器
let spinner = null
// 所有包的数据
let packageData = []
// 从选择列表选择的包名
let packageName = ''
// 配置的统一资源定位符（url😄）
let configUrl = ''

class HandlePull {
  constructor({ argv, linaConfig }) {
    this.argv = argv
    this.linaConfig = linaConfig
    // console.log(argv)
    if (this.argv.pkgName !== '') { // 参数有模块名
      /*
       * ora 配置
       * see https://www.npmjs.com/package/ora
       *
       * */
      spinner = ora({
        color: 'green',
        indent: 1,
        spinner: 'dots2'
      }).start('please wait patiently\n')
      this.argv.gitAlias === 'lina'
        ? this.findPkg() // 输入匹配到默认的别名
        : this.actionToNopeDefaultAilas() // 如果不是默认
    } else { // 输入参数的模块名没填写
      spinner = ora({
        color: 'green',
        indent: 1,
        spinner: 'dots5'
      }).start('getting all packages, please wait for a moment...\n')
      // 默认拉去远程拉取所有包名供选择
      // 以下作用同上
      this.argv.gitAlias === 'lina'
        ? this.getPackagesName()
        : this.actionToNopeDefaultAilas()

    }

  }

  actionToNopeDefaultAilas() {
    const depArr = this.linaConfig.dependencies
    if (this.isAliasInConfig(depArr)) { // 判断输入的别名是否在config文件里
      this.getPackagesName()
    } else {
      spinner.fail(`no such git-alias: ${ this.argv.gitAlias }\n please check parameter and try again`)
      process.exit(0)
    }
  }

  isAliasInConfig(depArr) {
    //  returns the value of the first element in the provided array that satisfies the provided testing function.
    return depArr.find(dep => dep.alias === this.argv.gitAlias)
  }

  async getPackagesName() {
    const depArr = this.linaConfig.dependencies
    let len = depArr.length
    // 输入的参数 [--git-alias = lina] 或者 [--git-alias  lina]
    let { gitAlias, 'git-alias': literalAlias } = this.argv
    let tmpAlias = gitAlias || literalAlias

    while (len --) {
      let item = depArr[len]
      if (item.alias === tmpAlias) {
        configUrl = item.config
        break
      }
    }
    try {
      if (configUrl) {
        // spinner.fail(`definitely no config file url,please complete entirely path`)
        // process.exit(0)
        let { data } = await fly.get(configUrl)
        packageData = JSON.parse(data).packages
        spinner.succeed(`got all packages, enjoy it`)
        let { packages } = await inquirer.prompt([
          {
            type: 'rawlist',
            name: 'packages',
            message: '请选择模块名',
            pageSize: packageData.length,
            choices: packageData.filter(item => item.type && ~ item.type.indexOf('component'))
          }
        ])
        console.log('已选模块：', packages)
        packageName = packages

        spinner = ora({
          color: 'green',
          indent: 1,
          spinner: 'dots2'
        }).start('please wait patiently\n')
      }
      this.findPkg()
    } catch (e) {
      console.error('错误✖', e)
      spinner.fail('error， please retry again')
    }
  }

  /*
   * 从命令行和linaConfig中获取仓库地址（别名）和其它信息
   * */
  findPkg() {
    const depArr = this.linaConfig.dependencies
    let len = depArr.length
    // 输入的参数 [--git-alias = lina] 或者 [--git-alias  lina]
    let { gitAlias, 'git-alias': literalAlias } = this.argv
    let tmpAlias = gitAlias || literalAlias

    while (len --) {
      if (depArr[len].alias === tmpAlias) {
        // 执行拉取文件夹操作
        let item = depArr[len]
        let repository = item.repo
        let pkgSrc = item.src
        let dest = item.dest
        dest = `./${ dest }`
        !fs.existsSync(dest) && mkdir('-p', dest)
        cd(dest)
        this.pullPkg({
          repository,
          pkgSrc
        })
        break
      }
    }
  }

  /*
   * 执行git 拉取操作
   * */

  pullPkg({ repository, pkgSrc }) {
    let self = this
    spinner.text = `now pulling ${ this.argv.pkgName || packageName }\n`
    console.log('current path:', pwd().stdout)
    exec('git init', { silent: true, async: false })
    exec(`git remote add origin ${ repository }`, { silent: true, async: false })
    exec('git config core.sparsecheckout true', { async: false })
    // echo /languages/ >> .git/info/sparse-checkout
    fs.writeFileSync('.git/info/sparse-checkout', `${ pkgSrc }/${ this.argv.pkgName || packageName }`)
    exec(`git pull --depth=1 origin master`, { silent: true }, function (code) {
      if (+ code !== 0) {
        spinner.fail(`fail to pull ${ self.argv.pkgName || packageName }, please check parameter and try again`)
      } else {
        spinner.succeed(`succeed pull ${ self.argv.pkgName || packageName }`)
      }
      rm('-rf', './.git')
      console.log('lina package 存放的目录:', pwd().stdout)
      mv(`./${ pkgSrc }/${ self.argv.pkgName || packageName }`, './')
      rm('-rf', `./${ pkgSrc.split('/')[0] }`)
      // 有可能上面的while没有结束，所以exitCode默认为0
      process.exit(0)
    })
  }
}

// use shorthand for module.exports
// exports.HandlePull = HandlePull

// or use full formation -> module.exports = { key: value }
module.exports = {
  HandlePull
}