saven/packages/saven-cli/src/project.js

no

const path = require('path')
const fs = require('fs-extra')
const chalk = require('chalk')
const inquirer = require('inquirer')
const semver = require('semver')

const Creator = require('./creator')

const {
  shouldUseYarn,
  shouldUseCnpm,
  getPkgVersion
} = require('./util')
const { SOURCE_DIR } = require('./config')

class Project extends Creator {
  constructor (options) {
    super()
    const unSupportedVer = semver.lt(process.version, 'v7.6.0')
    if (unSupportedVer) {
      throw new Error('Node.js 版本过低，推荐升级 Node.js 至 v8.0.0+')
    }
    this.rootPath = this._rootPath
    this.conf = Object.assign({
      projectName: null,
      template: null,
      description: ''
    }, options)
  }

  init () {
    console.log(chalk.green(`Saven即将创建一个新项目!`))
    console.log('Need help? Go and open issue: https://github.com/NervJS/taro/issues/new')
    console.log()
  }

  create () {
    this.ask()
      .then(answers => {
        const date = new Date()
        this.conf = Object.assign(this.conf, answers)
        this.conf.date = `${date.getFullYear()}-${(date.getMonth() + 1)}-${date.getDate()}`
        this.write()
      })
  }

  ask () {
    const prompts = []
    const conf = this.conf
    if (typeof conf.projectName !== 'string') {
      prompts.push({
        type: 'input',
        name: 'projectName',
        message: '请输入项目名称！',
        validate (input) {
          if (!input) {
            return '项目名不能为空！'
          }
          if (fs.existsSync(input)) {
            return '当前目录已经存在同名项目，请换一个项目名！'
          }
          return true
        }
      })
    } else if (fs.existsSync(conf.projectName)) {
      prompts.push({
        type: 'input',
        name: 'projectName',
        message: '当前目录已经存在同名项目，请换一个项目名！',
        validate (input) {
          if (!input) {
            return '项目名不能为空！'
          }
          if (fs.existsSync(input)) {
            return '项目名依然重复！'
          }
          return true
        }
      })
    }

    if (typeof conf.description !== 'string') {
      prompts.push({
        type: 'input',
        name: 'description',
        message: '请输入项目介绍！'
      })
    }

    if (typeof conf.typescript !== 'boolean') {
      prompts.push({
        type: 'confirm',
        name: 'typescript',
        message: '是否需要使用 TypeScript ？'
      })
    }

    const cssChoices = [{
      name: 'Sass',
      value: 'sass'
    }, {
      name: 'Less',
      value: 'less'
    }, {
      name: 'Stylus',
      value: 'stylus'
    }, {
      name: '无',
      value: 'none'
    }]

    prompts.push({
      type: 'list',
      name: 'css',
      message: '请选择 CSS 预处理器（Sass/Less/Stylus）',
      choices: cssChoices
    })

    const templateChoices = [{
      name: '默认模板',
      value: 'default'
    }, {
      name: 'Redux 模板',
      value: 'redux'
    }]

    if (typeof conf.template !== 'string') {
      prompts.push({
        type: 'list',
        name: 'template',
        message: '请选择模板',
        choices: templateChoices
      })
    } else {
      let isTemplateExist = false
      templateChoices.forEach(item => {
        if (item.value === conf.template) {
          isTemplateExist = true
        }
      })
      if (!isTemplateExist) {
        console.log(chalk.red('你选择的模板不存在!'))
        console.log(chalk.red('目前提供了以下模板以供使用:'))
        console.log()
        templateChoices.forEach(item => {
          console.log(chalk.green(`- ${item.name}`))
        })
        process.exit(1)
      }
    }

    return inquirer.prompt(prompts)
  }

  write (cb) {
    const { template } = this.conf
    this.conf.src = SOURCE_DIR
    const templateCreate = require(path.join(this.templatePath(), template, 'index.js'))
    templateCreate(this, this.conf, {
      shouldUseYarn,
      shouldUseCnpm,
      getPkgVersion
    }, cb)
  }
}

module.exports = Project