ManageIQ/manageiq-ui-classic

// Note: You must restart bin/webpack-dev-server for changes to take effect

/* eslint global-require: 0 */

const merge = require('webpack-merge');
const CompressionPlugin = require('compression-webpack-plugin');
const sharedConfig = require('./shared.js');

const { StatsWriterPlugin } = require('webpack-stats-plugin');
const fs = require('fs');
const sortBy = require('lodash/sortBy');

const uniqueWebpackModules = (data) => {
  // recursively flatten nested modules
  const transformModule  = m  => m.modules ? transformModules(m.modules) : m.name.split("!").pop();
  const transformModules = ms => ms.flatMap(m => transformModule(m));

  var modules = transformModules(data.modules).sort();
  modules = [...new Set(modules)]; // uniq

  return modules;
}

const packagesFromModules = (modules) => {
  // find the package.json file for each module
  modules = modules.filter(m => m.includes("node_modules"));
  var packagePaths = modules.map(m => {
    var match = m.match(/(.*node_modules\/)([^/]+)(\/[^/]+)?/);
    var path = [
      `${match[1]}${match[2]}/package.json`,
      `${match[1]}${match[2]}${match[3]}/package.json`,
    ].find(p => fs.existsSync(p));

    if (path == null) {
      console.warn(`[webpack-manifest] WARN: Unable to find a package.json for ${m}`);
    }

    return path;
  })
  packagePaths = packagePaths.filter(p => p != null);
  packagePaths = [...new Set(packagePaths)]; // uniq

  // extract relevant package data from the package.json
  var packages = packagePaths.map(p => {
    var content = fs.readFileSync(p);
    var pkg = JSON.parse(content);
    return {
      name: pkg.name,
      license: pkg.license,
      version: pkg.version,
      location: p
    }
  });
  packages = sortBy(packages, ['name', 'version']);

  return packages;
}

module.exports = merge(sharedConfig, {
  mode: 'production',
  devtool: 'source-map',
  stats: 'normal',

  plugins: [
    new CompressionPlugin({
      test: /\.(js|css|html|json|ico|svg|eot|otf|ttf)$/,
    }),

    // Write out dependent modules list for audit purposes
    new StatsWriterPlugin({
      filename: "webpack_modules_manifest.json",
      fields: ["modules"],

      transform(data) {
        var modules = uniqueWebpackModules(data);
        return JSON.stringify(modules, null, 2);
      }
    }),

    // Write out dependent packages list for audit purposes
    new StatsWriterPlugin({
      filename: "webpack_packages_manifest.json",
      fields: ["modules"],

      transform(data) {
        var modules = uniqueWebpackModules(data);
        var packages = packagesFromModules(modules);
        return JSON.stringify(packages, null, 2);
      }
    })
  ],
});