Webpack 4 - Create a Provider Piece

Question

In webpack 3 configuration, I would use the code below to create a separate block vendor.js:

entry: {
    client: ['./client.js'],
    vendor: ['babel-polyfill', 'react', 'react-dom', 'redux'],
},

output: {
  filename: '[name].[chunkhash].bundle.js',
  path: '../dist',
  chunkFilename: '[name].[chunkhash].bundle.js',
  publicPath: '/',
},

plugins: [
    new webpack.HashedModuleIdsPlugin(),
    new webpack.optimize.CommonsChunkPlugin({
      name: 'vendor',
    }),
    new webpack.optimize.CommonsChunkPlugin({
      name: 'runtime',
    }),
],

With all the changes, I'm not sure how to do this with Webpack 4. I know that it CommonChunksPluginwas deleted, so there is another way to achieve this. I also read this tutorial, but I'm still not sure about extracting a run-time snippet and defining the property correctly output.

EDIT: Unfortunately, I am having problems with the most popular answer here. Check out my answer .

Answer 1

: https://github.com/webpack/webpack/tree/master/examples

, , :

// mode: "development || "production",
entry: {
  client: './client.js',
},
output: {
  path: path.join(__dirname, '../dist'),
  filename: '[name].chunkhash.bundle.js',
  chunkFilename: '[name].chunkhash.bundle.js',
  publicPath: '/',
},
optimization: {
  splitChunks: {
    cacheGroups: {
      vendor: {
        chunks: 'initial',
        name: 'vendor',
        test: 'vendor',
        enforce: true
      },
    }
  },
  runtimeChunk: true
}

Answer 2

vendor entry , , ...

entry: {
 client: './client.js'
},

output: {
 path: path.join(__dirname, '../dist'),
 filename: '[name].chunkhash.bundle.js',
 chunkFilename: '[name].chunkhash.bundle.js',
 publicPath: '/',
},

optimization: {
  splitChunks: {
   cacheGroups: {
    vendor: {
     test: /node_modules/,
     chunks: 'initial',
     name: 'vendor',
     enforce: true
    },
   }
  } 
 }

-

Answer 3

, optimization.

Webpack 4:

// mode: 'development' | 'production' | 'none'

entry: {
    client: ['./client.js'],
    vendor: ['babel-polyfill', 'react', 'react-dom', 'redux'],
},

output: {
    filename: '[name].[chunkhash].bundle.js',
    path: '../dist',
    chunkFilename: '[name].[chunkhash].bundle.js',
    publicPath: '/',
},

optimization: {
    runtimeChunk: 'single',
    splitChunks: {
        cacheGroups: {
            vendor: {
                test: /[\\/]node_modules[\\/]/,
                name: 'vendors',
                enforce: true,
                chunks: 'all'
            }
        }
    }
}

, W4, Webpack.

, , optimization.splitChunks.chunks "all".

. optimization.splitChunks. - , , optimization.splitChunks.chunks: "all" .

Answer 4

js . . , webpack. , :

optimization: {
   runtimeChunk: 'single',
   splitChunks: {
    chunks: 'all',
    maxInitialRequests: Infinity,
    minSize: 0,
    cacheGroups: {
      vendor: {
        test: /[\\/]node_modules[\\/]/,
        name(module) {
        // get the name. E.g. node_modules/packageName/not/this/part.js
        // or node_modules/packageName
        const packageName = module.context.match(/[\\/]node_modules[\\/](.*?)([\\/]|$)/)[1];

      // npm package names are URL-safe, but some servers don't like @ symbols
      return 'npm.${packageName.replace('@', '')}';
      },
    },
  },
 },
}

- , .

optimization: {
runtimeChunk: 'single',
  splitChunks: {
    chunks: 'all',
    maxInitialRequests: Infinity,
    minSize: 0,
    cacheGroups: {
      reactVendor: {
        test: /[\\/]node_modules[\\/](react|react-dom)[\\/]/,
        name: "reactvendor"
      },
      utilityVendor: {
        test: /[\\/]node_modules[\\/](lodash|moment|moment-timezone)[\\/]/,
        name: "utilityVendor"
      },
      bootstrapVendor: {
        test: /[\\/]node_modules[\\/](react-bootstrap)[\\/]/,
        name: "bootstrapVendor"
      },
      vendor: {
         test: /[\\/]node_modules[\\/](!react-bootstrap)(!lodash)(!moment)(!moment-timezone)[\\/]/,
      name: "vendor"
    },
    },
  },
}

Answer 5

, :

entry: {
  vendor: ['@babel/polyfill', 'react', 'react-dom', 'redux'],
  client: './client.js',
},
optimization: {
  splitChunks: {
    cacheGroups: {
      vendor: {
        chunks: 'initial',
        name: 'vendor',
        test: 'vendor',
        enforce: true
      },
    }
  },
  runtimeChunk: true
}

- @babel/polyfill @babel/polyfill ... - , @babel/polyfill:

const moduleList = ["@babel/polyfill", "react", "react-dom"];
...

  entry: {
    client: ["@babel/polyfill", "../src/client.js"]
  }
  optimization: {
    runtimeChunk: "single",
    splitChunks: {
      cacheGroups: {
        vendor: {
          test: new RegExp(
            '[\\/]node_modules[\\/](${moduleList.join("|")})[\\/]'
          ),
          chunks: "initial",
          name: "vendors",
          enforce: true
        }
      }
    }
  }

, , splitChunks.cacheGroups.vendor.test splitChunks.cacheGroups.vendor.test .

• Webpack SplitChunksPlugin.
• Webpack
• Webpack

, , 100% , . , , , , , , webpack-bundle-analyzer ( , , ) polyfill,

Answer 6

, :

optimization: {
    splitChunks: {
        chunks: 'all',
    },
    runtimeChunk: true,
}

vendors~ runtime~. Sokra splitChunks:

splitChunks: {
    chunks: "async",
    minSize: 30000,
    minChunks: 1,
    maxAsyncRequests: 5,
    maxInitialRequests: 3,
    name: true,
    cacheGroups: {
        default: {
            minChunks: 2,
            priority: -20
            reuseExistingChunk: true,
        },
        vendors: {
            test: /[\\/]node_modules[\\/]/,
            priority: -10
        }
    }
}

vendors default. , default.

, , PHP:

public static function webpack_asset($chunkName, $extensions=null, $media=false) {
    static $stats;
    if($stats === null) {
        $stats = WxJson::loadFile(WX::$path.'/webpack.stats.json');
    }
    $paths = WXU::array_get($stats,['assetsByChunkName',$chunkName],false);
    if($paths === false) {
        throw new \Exception("webpack asset not found: $chunkName");
    }
    foreach($stats['assetsByChunkName'] as $cn => $files) {
        if(self::EndsWith($cn, '~' . $chunkName)) {
            // prepend additional supporting chunks
            $paths = array_merge($files, $paths);
        }
    }
    $html = [];
    foreach((array)$paths as $p) {
        $ext = WXU::GetFileExt($p);
        if($extensions) {
            if(is_array($extensions)) {
                if(!in_array($ext,$extensions)) {
                    continue;
                }
            } elseif(is_string($extensions)) {
                if($ext !== $extensions) {
                    continue;
                }
            } else {
                throw new \Exception("Unexpected type for \$extensions: ".WXU::get_type($extensions));
            }
        }
        switch($ext) {
            case 'js':
                $html[] = WXU::html_tag('script',['src'=>$stats['publicPath'].$p,'charset'=>'utf-8'],'');
                break;
            case 'css':
                $html[] = WXU::html_tag('link',['href'=>$stats['publicPath'].$p,'rel'=>'stylesheet','type'=>'text/css','media'=>$media],null); // "charset=utf-8" doesn't work in IE8
                break;
        }
    }
    return implode(PHP_EOL, $html);
}

( WP4):

{
    apply: function(compiler) {
        //let compilerOpts = this._compiler.options;
        compiler.plugin('done', function(stats, done) {
            let assets = {};
            stats.compilation.namedChunks.forEach((chunk, name) => {
                assets[name] = chunk.files;
            });

            fs.writeFile('webpack.stats.json', JSON.stringify({
                assetsByChunkName: assets,
                publicPath: stats.compilation.outputOptions.publicPath
            }), done);
        });
    }
},

- :

<script src="/assets/runtime~main.a23dfea309e23d13bfcb.js" charset="utf-8"></script>
<link href="/assets/chunk.81da97be08338e4f2807.css" rel="stylesheet" type="text/css"/>
<script src="/assets/chunk.81da97be08338e4f2807.js" charset="utf-8"></script>
<link href="/assets/chunk.b0b8758057b023f28d41.css" rel="stylesheet" type="text/css"/>
<script src="/assets/chunk.b0b8758057b023f28d41.js" charset="utf-8"></script>
<link href="/assets/chunk.00ae08b2c535eb95bb2e.css" rel="stylesheet" type="text/css" media="print"/>

, JS , JS-. .

JS require, . , - , . import() , , . , - , . , .

, . .js, , .css, [chunkhash].

---

. , , <script>, ... AFAICT:

const fs = require('fs');

class EntryChunksPlugin {

    constructor(options) {
        this.filename = options.filename;
    }

    apply(compiler) {
        compiler.plugin('done', (stats, done) => {
            let assets = {};

            // do we need to use the chunkGraph instead to determine order??? https://gist.github.com/sokra/1522d586b8e5c0f5072d7565c2bee693#gistcomment-2381967
            for(let chunkGroup of stats.compilation.chunkGroups) {
                if(chunkGroup.name) {
                    let files = [];
                    for(let chunk of chunkGroup.chunks) {
                        files.push(...chunk.files);
                    }
                    assets[chunkGroup.name] = files;
                }
            }

            fs.writeFile(this.filename, JSON.stringify({
                assetsByChunkName: assets,
                publicPath: stats.compilation.outputOptions.publicPath
            }), done);
        });
    }
}

module.exports = EntryChunksPlugin;

Answer 7

, . client.js , .

entry: {
 vendor: ['react', 'react-dom', 'react-router'],
 app: paths.appIndexJs
},

SplitChunks :

optimization: {
 splitChunks: {
  cacheGroups: {
    // match the entry point and spit out the file named here
    vendor: {
      chunks: 'initial',
      name: 'vendor',
      test: 'vendor',
      filename: 'vendor.js',
      enforce: true,
    },
  },
 },
},

Answer 8

React, yarn build:prod Crisp React:

5,770   LoginSPA.6cd2f37becf02e095e2e.bundle.js
3,260   MainSPA.6cd2f37becf02e095e2e.bundle.js
1,591   runtime.6cd2f37becf02e095e2e.bundle.js
275,323 vendor.6cd2f37becf02e095e2e.bundle.js
70,088  vendor.6cd2f37becf02e095e2e.bundle.js.br
83,117  vendor.6cd2f37becf02e095e2e.bundle.js.gz

React 2 SPA: "" "". . . vendor ( gzip Brotli) - .

webpack.config.js

splitChunks: {
        cacheGroups: {
          vendor: {
            test: /node_modules/,
            chunks: 'initial',
            name: 'vendor',
            enforce: true
          },
        },
      },

, "" 70 . , Brotli, . , gzip .

Just for reference: follow through yarn buildto complete the development, and the size of the "provider" is 3.58 MB .