PeerTube/client/config/webpack.dev.js

const helpers = require('./helpers')
const webpackMerge = require('webpack-merge') // used to merge webpack configs
const webpackMergeDll = webpackMerge.strategy({plugins: 'replace'})
const commonConfig = require('./webpack.common.js') // the settings that are common to prod and dev
const videoEmbedConfig = require('./webpack.video-embed.js')

/**
 * Webpack Plugins
 */
const AddAssetHtmlPlugin = require('add-asset-html-webpack-plugin')
const DefinePlugin = require('webpack/lib/DefinePlugin')
const NamedModulesPlugin = require('webpack/lib/NamedModulesPlugin')
const LoaderOptionsPlugin = require('webpack/lib/LoaderOptionsPlugin')
const HotModuleReplacementPlugin = require('webpack/lib/HotModuleReplacementPlugin')

/**
 * Webpack Constants
 */
const ENV = process.env.ENV = process.env.NODE_ENV = 'development'
const HOST = process.env.HOST || 'localhost'
const PORT = process.env.PORT || 3000
const PUBLIC = process.env.PUBLIC_DEV || HOST + ':' + PORT
const AOT = process.env.BUILD_AOT || helpers.hasNpmFlag('aot')
const HMR = helpers.hasProcessFlag('hot')
const METADATA = {
  host: HOST,
  port: PORT,
  public: PUBLIC,
  ENV: ENV,
  HMR: HMR,
  AOT: AOT,
  API_URL: 'http://localhost:9000'
}

const DllBundlesPlugin = require('webpack-dll-bundles-plugin').DllBundlesPlugin

/**
 * Webpack configuration
 *
 * See: http://webpack.github.io/docs/configuration.html#cli
 */
module.exports = function (env) {
  return [

    webpackMerge(commonConfig({ env: ENV }), {
      /**
      * Developer tool to enhance debugging
      *
      * See: http://webpack.github.io/docs/configuration.html#devtool
      * See: https://github.com/webpack/docs/wiki/build-performance#sourcemaps
      */
      devtool: 'cheap-module-source-map',

      /**
      * Options affecting the output of the compilation.
      *
      * See: http://webpack.github.io/docs/configuration.html#output
      */
      output: {
        /**
        * The output directory as absolute path (required).
        *
        * See: http://webpack.github.io/docs/configuration.html#output-path
        */
        path: helpers.root('dist'),

        /**
        * Specifies the name of each output file on disk.
        * IMPORTANT: You must not specify an absolute path here!
        *
        * See: http://webpack.github.io/docs/configuration.html#output-filename
        */
        filename: '[name].bundle.js',

        /**
        * The filename of the SourceMaps for the JavaScript files.
        * They are inside the output.path directory.
        *
        * See: http://webpack.github.io/docs/configuration.html#output-sourcemapfilename
        */
        sourceMapFilename: '[name].map',

        /** The filename of non-entry chunks as relative path
        * inside the output.path directory.
        *
        * See: http://webpack.github.io/docs/configuration.html#output-chunkfilename
        */
        chunkFilename: '[id].chunk.js',

        library: 'ac_[name]',
        libraryTarget: 'var'
      },

      plugins: [

        /**
        * Plugin: DefinePlugin
        * Description: Define free variables.
        * Useful for having development builds with debug logging or adding global constants.
        *
        * Environment helpers
        *
        * See: https://webpack.github.io/docs/list-of-plugins.html#defineplugin
        */
        // NOTE: when adding more properties, make sure you include them in custom-typings.d.ts
        new DefinePlugin({
          'ENV': JSON.stringify(METADATA.ENV),
          'HMR': METADATA.HMR,
          'API_URL': JSON.stringify(METADATA.API_URL),
          'process.version': JSON.stringify(process.version),
          'process.env.ENV': JSON.stringify(METADATA.ENV),
          'process.env.NODE_ENV': JSON.stringify(METADATA.ENV),
          'process.env.HMR': METADATA.HMR
        }),

        new DllBundlesPlugin({
          bundles: {
            polyfills: [
              'core-js',
              {
                name: 'zone.js',
                path: 'zone.js/dist/zone.js'
              },
              {
                name: 'zone.js',
                path: 'zone.js/dist/long-stack-trace-zone.js'
              }
            ],
            vendor: [
              '@angular/platform-browser',
              '@angular/platform-browser-dynamic',
              '@angular/core',
              '@angular/common',
              '@angular/forms',
              '@angular/http',
              '@angular/router',
              '@angularclass/hmr',
              'rxjs'
            ]
          },
          dllDir: helpers.root('dll'),
          webpackConfig: webpackMergeDll(commonConfig({env: ENV}), {
            devtool: 'cheap-module-source-map',
            plugins: []
          })
        }),

        /**
         * Plugin: AddAssetHtmlPlugin
         * Description: Adds the given JS or CSS file to the files
         * Webpack knows about, and put it into the list of assets
         * html-webpack-plugin injects into the generated html.
         *
         * See: https://github.com/SimenB/add-asset-html-webpack-plugin
         */
        new AddAssetHtmlPlugin([
          { filepath: helpers.root(`dll/${DllBundlesPlugin.resolveFile('polyfills')}`) },
          { filepath: helpers.root(`dll/${DllBundlesPlugin.resolveFile('vendor')}`) }
        ]),

        /**
        * Plugin: NamedModulesPlugin (experimental)
        * Description: Uses file names as module name.
        *
        * See: https://github.com/webpack/webpack/commit/a04ffb928365b19feb75087c63f13cadfc08e1eb
        */
        new NamedModulesPlugin(),

        /**
        * Plugin LoaderOptionsPlugin (experimental)
        *
        * See: https://gist.github.com/sokra/27b24881210b56bbaff7
        */
        new LoaderOptionsPlugin({
          debug: true,
          options: {

            /**
            * Static analysis linter for TypeScript advanced options configuration
            * Description: An extensible linter for the TypeScript language.
            *
            * See: https://github.com/wbuchwalter/tslint-loader
            */
            tslint: {
              emitErrors: false,
              failOnHint: false,
              typeCheck: true,
              resourcePath: 'src'
            },

            // FIXME: Remove
            // https://github.com/bholloway/resolve-url-loader/issues/36
            // https://github.com/jtangelder/sass-loader/issues/289
            context: __dirname,
            output: {
              path: helpers.root('dist')
            }

          }
        }),

        new HotModuleReplacementPlugin()
      ],

      /**
      * Webpack Development Server configuration
      * Description: The webpack-dev-server is a little node.js Express server.
      * The server emits information about the compilation state to the client,
      * which reacts to those events.
      *
      * See: https://webpack.github.io/docs/webpack-dev-server.html
      */
      devServer: {
        port: METADATA.port,
        host: METADATA.host,
        historyApiFallback: true,
        hot: METADATA.HMR,
        watchOptions: {
          ignored: /node_modules/
        }
      },

      /*
      * Include polyfills or mocks for various node stuff
      * Description: Node configuration
      *
      * See: https://webpack.github.io/docs/configuration.html#node
      */
      node: {
        global: true,
        crypto: 'empty',
        fs: 'empty',
        process: true,
        module: false,
        clearImmediate: false,
        setImmediate: false
      }
    }),

    videoEmbedConfig({env: ENV})
  ]
}