@neosjs/cli/bin/neos.js

Neos(奈欧斯)是一个帮助开发者快速地创建 Vue3 应用并自动配置项目编译的脚手架

#!/usr/bin/env node

const program = require('commander')
const minimist = require('minimist')
const chalk = require('chalk')
const semver = require('semver')
const requiredVersion = require('../package.json').engines.node
const { generateTitle } = require('../lib/utils/logger')
const didYouMean = require('didyoumean')

didYouMean.threshold = 0.6

const checkNodeVersion = (wanted, id) => {
  if (!semver.satisfies(process.version, wanted)) {
    console.log(chalk.red(`你使用的是 Node ${process.version}.\n请升级Node.'`))
    process.exit(1)
  }
}

checkNodeVersion(requiredVersion, '@neosjs/cli')

if (semver.satisfies(process.version, '9.x')) {
  console.log(
    chalk.red(
      `你使用的是 Node ${process.version}.\n
        请升级Node.`
    )
  )
}

program.version(
  `@neosjs/cli ${require('../package.json').version}\n`,
  '-v, --version',
  '输出版本号'
)
const verifyArgs = name => {
  if (minimist(process.argv.slice(3))._.length > 1) {
    console.log(chalk.yellow(`\n 警告: 您提供了多个参数。第一个将被用作${name}，其余的将被忽略.`))
  }
}

// 创建文件
program
  .command('create <projectName>')
  .description('创建一个新项目')
  .option('-f, --force', '如果目标目录存在，则覆盖它')
  .option('-g, --git [message]', '使用初始提交消息强制git初始化')
  .action((name, options) => {
    verifyArgs('Project Name')
    if (process.argv.includes('-g') || process.argv.includes('--git')) {
      options.forceGit = true
    }
    require('../lib/create')(name, options)
  })

// 打开url
program
  .command('open <url>')
  .description('打开 url')
  .action((name, options) => {
    verifyArgs('Url')
    require('../lib/open')(name, options)
  })

// 生成随机数
program
  .command('random <length>')
  .description('生成一个随机数')
  .action(name => {
    verifyArgs('Length')
    require('../lib/random')(name)
  })

program
  .command('info')
  .description('打印有关环境的调试信息')
  .action(() => {
    console.log(chalk.bold('\n环境信息:'))
    require('envinfo')
      .run(
        {
          System: ['OS', 'CPU','Shell'],
          Binaries: ['Node', 'Yarn', 'npm', 'pnpm'],
          Browsers: ['Chrome', 'Edge', 'Firefox', 'Safari'],
          IDEs:['VSCode'],
          Utilities:['Git'],
          npmGlobalPackages: ['@neosjs/cli','pnpm']
        },
        {
          showNotFound: true,
          duplicates: true,
          fullTree: true,
        }
      )
      .then(env => console.log(env));
  })

program.arguments('<command>').action(cmd => {
  program.outputHelp()
  console.log('  ' + chalk.red(`未知的命令 ${chalk.yellow(cmd)}.`))
  console.log()
  suggestCommands(cmd)
})

program.commands.forEach(c => c.on('--help', () => console.log()))
const enhanceErrorMessages = (methodName, log) => {
  program.Command.prototype[methodName] = function (...args) {
    if (methodName === 'unknownOption' && this._allowUnknownOption) {
      return
    }
    this.outputHelp()
    console.log(`  ${chalk.red(log(...args))}`)
    console.log()
    process.exit(1)
  }
}

enhanceErrorMessages(
  'missingArgument',
  argName => `缺少所需的参数 ${chalk.yellow(`<${argName}>`)}.`
)

enhanceErrorMessages('unknownOption', optionName => `未知选项 ${chalk.yellow(optionName)}.`)

enhanceErrorMessages(
  'optionMissingArgument',
  (option, flag) =>
    `缺少选项所需的参数 ${chalk.yellow(option.flags)}${flag ? `, got ${chalk.yellow(flag)}` : ''}`
)

program
  .configureHelp({
    sortSubcommands: true,
    subcommandTerm: cmd => cmd.name()
  })
  .helpOption('-h, --help', '查看帮助信息')
program.on('--help', () => {
  console.log(`${generateTitle()}`)
  console.log()
})

program.parse(process.argv)

if (!process.argv.slice(2).length) {
  program.outputHelp()
}

function suggestCommands(unknownCommand) {
  const availableCommands = program.commands.map(cmd => {
    return cmd._name
  })

  const suggestion = didYouMean(unknownCommand, availableCommands)
  if (suggestion) {
    console.log('  ' + chalk.red(`你的意思是 ${chalk.yellow(suggestion)} ?\n`))
  }
}