shared-logs / web-app

'use strict'

const utils = require('./utils')

const webpack = require('webpack')

const config = require('../config')

const merge = require('webpack-merge')

const path = require('path')

const baseWebpackConfig = require('./webpack.base.conf')

const CopyWebpackPlugin = require('copy-webpack-plugin')

const HtmlWebpackPlugin = require('html-webpack-plugin')

const FriendlyErrorsPlugin = require('friendly-errors-webpack-plugin')

const portfinder = require('portfinder')

const HOST = process.env.HOST

const PORT = process.env.PORT && Number(process.env.PORT)

const devWebpackConfig = merge(baseWebpackConfig, {

  module: {

    rules: utils.styleLoaders({ sourceMap: config.dev.cssSourceMap, usePostCSS: true })

  },

  // cheap-module-eval-source-map is faster for development

  devtool: config.dev.devtool,

  // these devServer options should be customized in /config/index.js

  devServer: {

    clientLogLevel: 'warning',

    historyApiFallback: {

      rewrites: [

        { from: /.*/, to: path.posix.join(config.dev.assetsPublicPath, 'index.html') },

      ],

    },

    hot: true,

    contentBase: false, // since we use CopyWebpackPlugin.

    compress: true,

    disableHostCheck: true,

    host: HOST || config.dev.host,

    port: PORT || config.dev.port,

    open: config.dev.autoOpenBrowser,

    overlay: config.dev.errorOverlay

      ? { warnings: false, errors: true }

      : false,

    publicPath: config.dev.assetsPublicPath,

    proxy: config.dev.proxyTable,

    quiet: true, // necessary for FriendlyErrorsPlugin

    watchOptions: {

      poll: config.dev.poll,

    }

  },

  plugins: [

    new webpack.DefinePlugin({

      'process.env': require('../config/dev.env')

    }),

    new webpack.HotModuleReplacementPlugin(),

    new webpack.NamedModulesPlugin(), // HMR shows correct file names in console on update.

    new webpack.NoEmitOnErrorsPlugin(),

    // https://github.com/ampedandwired/html-webpack-plugin

    new HtmlWebpackPlugin({

      filename: 'index.html',

      template: 'index.html',

      inject: true

    }),

    // copy custom static assets

    new CopyWebpackPlugin([

      {

        from: path.resolve(__dirname, '../static'),

        to: config.dev.assetsSubDirectory,

        ignore: ['.*']

      }

    ])

  ]

})

module.exports = new Promise((resolve, reject) => {

  portfinder.basePort = process.env.PORT || config.dev.port

  portfinder.getPort((err, port) => {

    if (err) {

      reject(err)

    } else {

      // publish the new Port, necessary for e2e tests

      process.env.PORT = port

      // add port to devServer config

      devWebpackConfig.devServer.port = port

      // Add FriendlyErrorsPlugin

      devWebpackConfig.plugins.push(new FriendlyErrorsPlugin({

        compilationSuccessInfo: {

          messages: [`Your application is running here: http://${devWebpackConfig.devServer.host}:${port}`],

        },

        onErrors: config.dev.notifyOnErrors

        ? utils.createNotifierCallback()

        : undefined

      }))

      resolve(devWebpackConfig)

    }

  })

})