React+webpack+Eslint+Babel构建React脚手架

参考网上文章，说的不是很全，想自己写一篇来巩固知识点，脚手架源码参考阮一峰老师的Github

所用技术栈

• React

• Babel

• Webpack

• Eslint

• travis

• ES6

构建过程

安装nodejs

初始化项目：

npm init -y        注：-y的意思是默认安装

目录构建

配置package.json

npm初始化后会自动生成

添加：

"dependencies": {
    "babel-runtime": "6.x","react": "15.x","react-dom": "15.x"
  },"devDependencies": {
    "babel-core": "6.x","babel-eslint": "7.x","babel-loader": "6.x","babel-plugin-transform-runtime": "6.x","babel-preset-es2015": "6.x","babel-preset-react": "6.x","babel-preset-stage-0": "6.x","copy-webpack-plugin": "latest","css-loader": "~0.26.1","eslint": "latest","eslint-config-airbnb": "latest","eslint-formatter-pretty": "^1.1.0","eslint-plugin-compat": "^1.0.0","eslint-plugin-import": "latest","eslint-plugin-jsx-a11y": "3.x","eslint-plugin-promise": "^3.4.0","eslint-plugin-react": "latest","open-browser-webpack-plugin": "0.0.3","style-loader": "~0.13.1","webpack": "1.x","webpack-dev-server": "1.x"
  }

或者在命令行中使用安装命令，加深印象。注：-S是安装在生产环境，-D安装在开发环境。

//安装react
npm install react -S
npm install react-dom -S

//减少打包的时候重复代码
npm install babel-runtime  -S
npm install babel-plugin-transform-runtime -D

//安装babel相关
npm install babel-loader -D //安装babel-loader
npm install babel-core -D //安装babel核心
npm install babel-preset-es2015 -D //支持ES2015
npm install babel-preset-react -D  //支持jsx
npm install babel-preset-stage-0 -D //支持ES7
npm install babel-eslint -D 

//安装webpack
npm install webpack -D //模块管理和打包工具
npm install webpack-dev-server -D //监听代码自动刷新

//安装Eslint相关
npm install eslint -D
npm install eslint-config-airbnb -D
npm install eslint-formatter-pretty -D
npm install eslint-plugin-compat -D
npm install eslint-plugin-import -D
npm install eslint-plugin-jsx-a11y -D
npm install eslint-plugin-promise -D
npm install eslint-plugin-react -D

配置webpack.config.js

Webpack将项目中的所有静态资源都当做模块，模块之间可以互相依赖，由webpack对它们进行统一的管理和打包发布。

安装webpack后，手动创建文件进行定制。

webpack.production.config.js与之类似。

const webpack = require('webpack');
const path = require('path');
const OpenBrowserPlugin = require('open-browser-webpack-plugin');

module.exports = {
  devServer: {
    historyApiFallback: true,hot: true,inline: true,progress: true,contentBase: './app',port: 8080
  },entry: [
    'webpack/hot/dev-server','webpack-dev-server/client?http://localhost:8080',path.resolve(__dirname,'app/main.jsx')
  ],output: {
    path: path.resolve(__dirname,'build'),publicPath: '/',filename: './bundle.js'
  },module: {
    loaders: [
      { test: /\.css$/,include: path.resolve(__dirname,'app'),loader: 'style-loader!css-loader' },{ test: /\.js[x]?$/,exclude: /node_modules/,loader: 'babel-loader' }
    ]
  },resolve: {
    extensions: ['','.js','.jsx']
  },plugins: [
    new webpack.HotModuleReplacementPlugin(),new OpenBrowserPlugin({ url: 'http://localhost:8080' })
  ]
};

配置.babelrc

babel是ES2015 语法转化器，可从Babel学习其用法。

安装babel后，手动创建进行配置。

{
  "presets": [ "es2015","stage-0","react"],"env": {
    "build": {
      "optional": ["optimisation","minification"]
    }
  }
}

配置.eslintrc

ESLint是一个QA工具，用来避免低级错误和统一代码的风格。

安装eslint后，手动创建进行配置。

{
  "parser": "babel-eslint","extends": "airbnb","env": {
    "browser": true,"node": true
  },"parserOptions": {
     "ecmaVersion": 6,"sourceType": "module","ecmaFeatures": {
       "jsx": true
     }
  },"globals": {
    "window": true,"document": true
  },"rules": {
    "arrow-parens": 0,"class-methods-use-this": 0,"compat/compat": 2,"comma-dangle": 0,"consistent-return": 2,"func-names": 2,"generator-star-spacing": [0],"import/no-extraneous-dependencies": ["off"],"import/extensions": 0,"import/no-unresolved": 2,"new-cap": 0,"no-implicit-coercion": "error","no-mixed-operators": 0,"no-plusplus": 0,"no-use-before-define": 0,"no-nested-ternary": 0,"no-underscore-dangle": 0,"no-var": "error","semi": ["error","always"],"promise/param-names": 2,"promise/always-return": 2,"promise/catch-or-return": 2,"promise/no-native": 0
  },"plugins": [
    "compat","import","promise"
  ]
}

配置.travis.yml

Travis Ci是一个基于云的持续集成项目，目前已经支持大部分主流语言了，如：C、PHP、Ruby、Python、Nodejs、Java、Objective-C等等，Travis Ci与Github集成非常紧密，官方的集成测试托管只支持Github项目，不过你也可以通过Travis Ci开源项目搭建一套属于自己的方案。

可从Travis注册使用，很方便。

sudo: false

language: node_js
node_js:
  - "node"

最后贴上自己的Github，前端小白，欢迎指导。