Webpack bundle analyzer for CRA (create-react-app)

analyzerCRA.js

process.env.NODE_ENV = 'production';

const webpack = require('webpack');
const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
const webpackConfigProd = require('react-scripts/config/webpack.config')('production');

const chalk = require('chalk');
const ProgressBarPlugin = require('progress-bar-webpack-plugin');
const green = text => {
    return chalk.green.bold(text);
};

webpackConfigProd.plugins.push(new BundleAnalyzerPlugin());

webpackConfigProd.plugins.push(
    new ProgressBarPlugin({
        format: `${green('analyzing...')} ${green('[:bar]')}${green('[:percent]')}${green('[:elapsed seconds]')} - :msg`,
    }),
);

webpack(webpackConfigProd, (err, stats) => {
    if (err || stats.hasErrors()) {
        console.error(err);
    }
});