Multi-entry project scaffolding implemented by webpack

Introduction

A multi-entry project scaffolding based on webpack2, mainly using extract-text-webpack-plugin to implement js and css public code extraction, html-webpack-plugin to implement html multi-entry, and less-loader to implement less compiles, postcss-loader configures autoprefixer to automatically add browser-compatible prefixes, html-withimg-loader implements adding image version numbers and template functions into HTML, babel-loader implements ES6 transcoding function, and happypack multi-threading accelerates the construction speed.

Directory

├── dist                     # 构建后的目录
├── config                   # 项目配置文件
│   ├── webpack.config.js    # webpack 配置文件
│   └── postcss.config.js    # postcss 配置文件
├── src                      # 程序源文件
│   └── js                   # 入口
│   ├   └── index.js         # 匹配 view/index.html
│   ├   └── user         
│   ├   ├    ├── index.js    # 匹配 view/user/index.html
│   ├   ├    ├── list.js     # 匹配 view/user/list.html
│   ├   └── lib              # JS 库等，不参与路由匹配
│   ├       ├── jquery.js 
│   └── view                 
│   ├    └── index.html       # 对应 js/index.js
│   ├    └── user         
│   ├        ├── index.html   # 对应 js/user/index.js
│   ├        ├── list.html    # 对应 js/user/list.js
│   └── css                   # css 文件目录
│   ├    └── base.css          
│   ├    └── iconfont.css     
│   └── font                  # iconfont 文件目录
│   ├    └── iconfont.ttf         
│   ├    └── iconfont.css
│   └── img                   # 图片文件目录
│   ├    └── pic1.jpg         
│   ├    └── pic2.png     
│   └── template              # html 模板目录
│       └── head.html         
│       └── foot.html

Configuration

Multiple entries

Get the multi-entry array according to the JS directory

const ROOT = process.cwd();  // 根目录

let entryJs = getEntry('./src/js/**/*.js');

/**
 * 根据目录获取入口
 * @param  {[type]} globPath [description]
 * @return {[type]}          [description]
 */
function getEntry (globPath) {
    let entries = {};
    Glob.sync(globPath).forEach(function (entry) {
        let basename = path.basename(entry, path.extname(entry)),
            pathname = path.dirname(entry);
        // js/lib/*.js 不作为入口
        if (!entry.match(/\/js\/lib\//)) {
            entries[pathname.split('/').splice(3).join('/') + '/' + basename] = pathname + '/' + basename;
        }
    });
    return entries;
}

// webpack 配置
const config = {
    entry: entryJs,
    output: {
        filename: 'js/[name].js?[chunkhash:8]',
        chunkFilename: 'js/[name].js?[chunkhash:8]',
        path: path.resolve(ROOT, 'dist'),
        publicPath: '/'
    },  
}

module

Use babel to implement ES2015 to ES5, less to css and use postcss to implement autoprefixer to automatically add browser compatibility, url-loader to implement css to reference images and fonts and add version numbers, html -withimg-loader implements html reference images, adds version numbers and implements template functions.

module: {
    rules: [
        {
            test: /\.js$/,
            exclude: /(node_modules|bower_components)/,
            use: {
                loader: 'babel-loader?id=js',
                options: {
                    presets: ['env']
                }
            }
        },
        {
            test: /\.(less|css)$/,
            use: ExtractTextPlugin.extract({
                fallback: 'style-loader?id=styles',
                use: [{
                        loader: 'css-loader?id=styles',
                        options: {
                            minimize:  !IsDev
                        }
                    }, 
                    {
                        loader: 'less-loader?id=styles'
                    }, 
                    {
                        loader: 'postcss-loader?id=styles',
                        options: {
                            config: {
                                path: PostcssConfigPath
                            }
                        }
                    }
                ]
            })
        },
        {
            test: /\.(png|jpg|gif)$/,
            use: [
                {
                    loader: 'url-loader',
                    options: {
                        limit: 100,
                        publicPath: '',
                        name: '/img/[name].[ext]?[hash:8]'
                    }
                }
            ]
        },
        {
            test: /\.(eot|svg|ttf|woff)$/,
            use: [
                {
                    loader: 'url-loader',
                    options: {
                        limit: 100,
                        publicPath: '',
                        name: '/font/[name].[ext]?[hash:8]'
                    }
                }
            ]
        },
        // @see 
        {
            test: /\.(htm|html)$/i,
            loader: 'html-withimg-loader?min=false'
        }
    ]
},


// postcss.config.js
module.exports = {
    plugins: [
        require('autoprefixer')({
            browsers: ['> 1%', 'last 5 versions', 'not ie <= 9'],
        })
    ]
}

View View

According to the directory correspondence, obtain the html entry corresponding to js

let entryHtml = getEntryHtml('./src/view/**/*.html'),
    configPlugins;

entryHtml.forEach(function (v) {
    configPlugins.push(new HtmlWebpackPlugin(v));
});

// webpack 配置
resolve: {
    alias: {
        views:  path.resolve(ROOT, './src/view')    
    }
},

/**
 * 根据目录获取 Html 入口
 * @param  {[type]} globPath [description]
 * @return {[type]}          [description]
 */
function getEntryHtml (globPath) {
    let entries = [];
    Glob.sync(globPath).forEach(function (entry) {
        let basename = path.basename(entry, path.extname(entry)),
            pathname = path.dirname(entry),
            // @see 
            minifyConfig = IsDev ? '' : {
                removeComments: true,
                collapseWhitespace: true,
                minifyCSS: true,
                minifyJS: true  
            };

        entries.push({
            filename: entry.split('/').splice(2).join('/'),
            template: entry,
            chunks: ['common', pathname.split('/').splice(3).join('/') + '/' + basename],
            minify: minifyConfig
        });

    });
    return entries;
}

plugins

Use happypack multi-threading to speed up the build, CommonsChunkPlugin implements extraction of public js into separate files, extract-text-webpack-plugin implements extraction of public css into separate files,

let configPlugins = [
    new HappyPack({
        id: 'js',
        // @see 
        threadPool: HappyThreadPool,
        loaders: ['babel-loader']
    }),
    new HappyPack({
        id: 'styles',
        threadPool: HappyThreadPool,
        loaders: ['style-loader', 'css-loader', 'less-loader', 'postcss-loader']
    }),
    new webpack.optimize.CommonsChunkPlugin({
        name: 'common'
    }),
    // @see 
    new ExtractTextPlugin({
        filename: 'css/[name].css?[contenthash:8]',
        allChunks: true
    })
];

entryHtml.forEach(function (v) {
    configPlugins.push(new HtmlWebpackPlugin(v));
});

// webpack 配置
plugins: configPlugins,

Development

webpack-dev-server implements functions such as automatic refresh of the development environment

// webpack 配置
devServer: {
    contentBase: [
        path.join(ROOT, 'src/')
    ],
    hot: false,
    host: '0.0.0.0',
    port: 8080
}

Development

npm start

http://localhost:8080/view

Build

cross-env realizes the distinction between development and production environment build

Development environment build, no code compressionProduction environment build, compressed code

Command	Description
##npm run dev
npm run build

Warehouse

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