Vue フロントエンド アーキテクチャの学習 (1)

├── app
│   ├── app.vue
│   ├── common
│   │   ├── img
│   │   ├── js
│   │   └── scss
│   ├── index.html
│   ├── index.js
│   ├── router
│   │   └── index.js
│   └── views
│       └── home
│           └── index.vue
├── .gitignore
├── package-lock.json
├── package.json
└── webpack.config.js

webpack
webpack-dev-server

vue-loader

node-sass
style-loader
css-loader
sass-loader
vue-style-loader
postcss
postcss-loader
autoprefixer
extract-text-webpack-plugin

file-loader
url-loader

babel
babel-loader
babel-plugin-syntax-dynamic-import
babel-plugin-transform-object-rest-spread
babel-polyfill
babel-preset-env

eslint
eslint-loader
eslint-plugin-html
babel-eslint

const webpack = require('webpack')
const path = require('path')
const HtmlWebpackPlugin = require('html-webpack-plugin')
const FriendlyErrorsPlugin = require('friendly-errors-webpack-plugin')
// 为了抽离出两份CSS，创建两份ExtractTextPlugin
// base作为基础的css，基本不变，所以，可以抽离出来充分利用浏览器缓存
// app作为迭代的css，会经常改变
const isProduction = process.env.NODE_ENV === 'production'
const ExtractTextPlugin = require('extract-text-webpack-plugin')
const extractBaseCSS =
  new ExtractTextPlugin(
    {
      filename:'static/css/base.[chunkhash:8].css',
      allChunks: true,
      disable: !isProduction // 开发环境下不抽离css
    }
  )
const extractAppCSS
  = new ExtractTextPlugin(
    {
      filename:'static/css/app.[chunkhash:8].css',
      allChunks: true,
      disable: !isProduction // 开发环境下不抽离css
    }
  )

// 减少路径书写
function resolve(dir) {
  return path.join(__dirname, dir)
}

// 网站图标配置
const favicon = resolve('favicon.ico')

// __dirname: 总是返回被执行的 js 所在文件夹的绝对路径
// __filename: 总是返回被执行的 js 的绝对路径
// process.cwd(): 总是返回运行 node 命令时所在的文件夹的绝对路径
const config = {
  // sourcemap 模式
  devtool: 'cheap-module-eval-source-map',
  // 入口
  entry: {
    app: [
      'babel-polyfill', // 这里是配合babel-present-env导入的动态babel-polyfill,因此npm需dev依赖
      resolve('app/index.js')
    ]
  },
  // 输出
  output: {
    path: resolve('dev'),
    filename: 'index.bundle.js'
  },
  resolve: {
    // 扩展名，比如import 'app.vue'，扩展后只需要写成import 'app'就可以了
    extensions: ['.js', '.vue', '.scss', '.css'],
    // 取路径别名，方便在业务代码中import
    alias: {
      api: resolve('app/api/'),
      common: resolve('app/common/'),
      views: resolve('app/views/'),
      components: resolve('app/components/'),
      componentsBase: resolve('app/componentsBase/'),
      directives: resolve('app/directives/'),
      filters: resolve('app/filters/'),
      mixins: resolve('app/mixins/')
    }
  },
  // loaders处理
  module: {
    rules: [
      {
        test: /\.js$/,
        include: [resolve('app')],
        loader: [
          'babel-loader',
          'eslint-loader'
        ]
      },
      {
        test: /\.vue$/,
        exclude: /node_modules/,
        loader: 'vue-loader',
        options: {
          extractCSS: true,
          loaders: {
            scss: extractAppCSS.extract({
              fallback: 'vue-style-loader',
              use: [
                {
                  loader: 'css-loader',
                  options: {
                    sourceMap: true
                  }
                },
                {
                  loader: 'postcss-loader',
                  options: {
                    sourceMap: true
                  }
                },
                {
                  loader: 'sass-loader',
                  options: {
                    sourceMap: true
                  }
                }
              ]
            })
          }
        }
      },
      {
        test: /\.(css|scss)$/,
        use: extractBaseCSS.extract({
          fallback: 'style-loader',
          use: [
            {
              loader: 'css-loader',
              options: {
                sourceMap: true
              }
            },
            {
              loader: 'postcss-loader',
              options: {
                sourceMap: true
              }
            },
            {
              loader: 'sass-loader',
              options: {
                sourceMap: true
              }
            }
          ]
        })
      },
      {
        test: /\.(png|jpe?g|gif|svg|ico)(\?.*)?$/,
        loader: 'url-loader',
        options: {
          limit: 8192,
          name: isProduction
            ? 'static/img/[name].[hash:8].[ext]'
            : 'static/img/[name].[ext]'
        }
      },
      {
        test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/,
        loader: 'url-loader',
        options: {
          limit: 8192,
          name: isProduction
            ? 'static/font/[name].[hash:8].[ext]'
            : 'static/font/[name].[ext]'
        }
      }
    ]
  },
  plugins: [
    // html 模板插件
    new HtmlWebpackPlugin({
      favicon,
      filename: 'index.html',
      template: resolve('app/index.html')
    }),
    // 抽离出css
    extractBaseCSS,
    extractAppCSS,
    // 热替换插件
    new webpack.HotModuleReplacementPlugin(),
    // 更友好地输出错误信息
    new FriendlyErrorsPlugin()
  ],
  devServer: {
    proxy: {
      // 凡是 `/api` 开头的 http 请求，都会被代理到 localhost:7777 上，由 koa 提供 mock 数据。
      // koa 代码在 ./mock 目录中，启动命令为 npm run mock。
      '/api': {
        target: 'http://localhost:7777', // 如果说联调了，将地址换成后端环境的地址就哦了
        secure: false
      }
    },
    host: '0.0.0.0',
    port: '9999',
    disableHostCheck: true, // 为了手机可以访问
    contentBase: resolve('dev'), // 本地服务器所加载的页面所在的目录
    // historyApiFallback: true, // 为了SPA应用服务
    inline: true, //实时刷新
    hot: true  // 使用热加载插件 HotModuleReplacementPlugin
  }
}

module.exports = {
  config: config,
  extractBaseCSS: extractBaseCSS,
  extractAppCSS: extractAppCSS
}