搭建一个nodejs脚手架的方法步骤

$ mkdir lq-cli
$ npm init

{
 "name": "lq-shell",
 "version": "1.0.0",
 "description": "脚手架搭建",
 "main": "index.js",
 "bin": {
  "lq": "./index.js"
 },
 "scripts": {
  "test": "test"
 },
 "keywords": [
  "cli"
 ],
 "author": "prune",
 "license": "ISC"
}

#!/usr/bin/env node

console.log('Hello, cli!');

npm link
lq

npm install --save commander

#!/usr/bin/env node

console.log('Hello, cli!')

const program = require('commander')
program
 .version(require('./package').version, '-v, --version')  
 .command('init <name>')
 .action((name) => {
   console.log(name)
 })
 
program.parse(process.argv)

npm install --save chalk

npm install --save download-git-repo

npm install --save inquirer

#!/usr/bin/env node
const chalk = require('chalk')
console.log('Hello, cli!')
console.log(chalk.green('init创建'))
const program = require('commander')
const download = require('download-git-repo')
const inquirer = require('inquirer')
program
 .version(require('./package').version, '-v, --version')  
 .command('init <name>')
 .action((name) => {
   console.log(name)
   inquirer.prompt([
    {
      type: 'input',
      name: 'author',
      message: '请输入你的名字'
    }
   ]).then((answers) => {
    console.log(answers.author)
    download('',
     name, {clone: true}, (err) => {
     console.log(err "htmlcode">

npm install --save ora


相关命令可以如下


const ora = require('ora')
// 开始下载
const proce = ora('正在下载模板...')
proce.start()

// 下载失败调用
proce.fail()

// 下载成功调用
proce.succeed()




2.2.6 log-symbols 在信息前面加上 √ 或 × 等的图标




npm install --save log-symbols


相关命令可以如下


const chalk = require('chalk')
const symbols = require('log-symbols')
console.log(symbols.success, chalk.green('SUCCESS'))
console.log(symbols.error, chalk.red('FAIL'))




2.2.7 完整文件如下




#!/usr/bin/env node
const chalk = require('chalk')
console.log('Hello, cli!')
console.log(chalk.green('init创建'))
const fs = require('fs')
const program = require('commander')
const download = require('download-git-repo')
const inquirer = require('inquirer')
const ora = require('ora')
const symbols = require('log-symbols')
program
 .version(require('./package').version, '-v, --version')  
 .command('init <name>')
 .action((name) => {
   console.log(name)
   inquirer.prompt([
    {
      type: 'input',
      name: 'author',
      message: '请输入你的名字'
    }
   ]).then((answers) => {
    console.log(answers.author)
    const lqProcess = ora('正在创建...')
    lqProcess.start()
    download('github:/Mr-Prune/learn/mongodb-koa',
     name, {clone: true}, (err) => {
     if (err) {
      lqProcess.fail()
      console.log(symbols.error, chalk.red(err))
     } else {
      lqProcess.succeed()
      const fileName = `${name}/package.json`
      const meta = {
       name,
       author: answers.author
      }
      if(fs.existsSync(fileName)){
       const content = fs.readFileSync(fileName).toString();
       const result = handlebars.compile(content)(meta);
       fs.writeFileSync(fileName, result);
     }
     console.log(symbols.success, chalk.green('创建成gong'))
     }
    })
   })
   
 })
program.parse(process.argv)



总结


通过上面的例子只是能够搭建出一个简单的脚手架工具，其实bash还可以做很多东西，比如 npm 包优雅地处理标准输入、管理并行任务、监听文件、管道流、压缩、ssh、git等，要想了解更多，就要深入了解，这里只是打开一扇门，学海无涯。
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。