/**

* Function that mutates original webpack config.

* Supports asynchronous changes when promise is returned.

*

* @param {object} config - original webpack config.

* @param {object} env - options passed to CLI.

* @param {WebpackConfigHelpers} helpers - object with useful helpers when working with config.

**/

export default function (config, env, helpers) {

const htmlWebpackPlugin = helpers.getPluginsByName(

config,

'HtmlWebpackPlugin'

)[0];

Object.assign(htmlWebpackPlugin.plugin.options.minify, {

removeComments: false,

collapseWhitespace: false

});

htmlWebpackPlugin.plugin.options.preload = false;

htmlWebpackPlugin.plugin.options.favicon = false;

// Required for lingui-macros

// let { rule } = helpers.getLoadersByName(config, 'babel-loader')[0];

// let babelConfig = rule.options;

// babelConfig.plugins.push('macros');

if (env.isProd) {

config.devtool = false; // disable sourcemaps

// To support chunk loading in root and also /app path

config.output.publicPath = './';

// Remove the default hash append in chunk name

config.output.chunkFilename = '[name].chunk.js';

}

}