commander-scripts-ivan/commander-scripts-ivan.js

Node.js命令行脚本

#!/usr/bin/env node

/* eslint-disable no-console, import/no-unresolved */
'use strict' // eslint-disable-line

var chalk = require('chalk') // eslint-disable-line
var semver = require('semver') // eslint-disable-line

// eslint-disable-next-line prefer-arrow-callback
process.on('unhandledRejection', function getError(err) {
  console.error(chalk.red('UnhandledRejection'))
  console.error(err)
  throw err
})

// 检测Node.js版本前运行代码纯ES5
var packageJson = require('./package.json') // eslint-disable-line

if (!semver.satisfies(process.version, packageJson.engines.node)) {
  console.error(
    chalk.red('You are running Node %s.\n' +
        'Excute scripts requires Node %s or higher. \n' +
        'Please update your version of Node.'),
    process.version,
    packageJson.engines.node,
  )
  process.exit(1)
}

const commander = require('commander')

// 将要创建项目目录名存储下来
commander.name(packageJson.name)
  .version(packageJson.version)
  .description('IvanPeng    email: 15527781897@163.com')
  .command('starter <project-directory> [options...]', 'starter new web project use web-scripts-ivan')
  .command('copy <project-directory> [options...]', 'copy new web project from <craete react app>')
  .alias('s')
  .parse(process.argv)