webpack.plugins.js

const webpack = require('webpack');
const CircularDependencyPlugin = require('circular-dependency-plugin')

module.exports = {
  plugins: [

    // new webpack.IgnorePlugin(/\/something$/),

    new CircularDependencyPlugin({
      // `onStart` is called before the cycle detection starts
      onStart({ compilation }) {
        console.log('start detecting webpack modules cycles');
      },
      // `onDetected` is called for each module that is cyclical
      onDetected({ module: webpackModuleRecord, paths, compilation }) {
        // `paths` will be an Array of the relative module paths that make up the cycle
        // `module` will be the module record generated by webpack that caused the cycle
        if (paths[0].indexOf('node_modules/') === 0) return; // ignore node_modules
        compilation.errors.push(new Error(paths.join(' -> ')))
      },
      // `onEnd` is called before the cycle detection ends
      onEnd({ compilation }) {
        console.log('end detecting webpack modules cycles');
      },
    }),

  ]
};