webpack.config.js

// @remove-on-eject-begin
/**
 * Copyright (c) 2015-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
// @remove-on-eject-end
'use strict';

const fs = require('fs');
const path = require('path');
const webpack = require('webpack');
const resolve = require('resolve');
const CaseSensitivePathsPlugin = require('case-sensitive-paths-webpack-plugin');
const TerserPlugin = require('terser-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const { WebpackManifestPlugin } = require('webpack-manifest-plugin');
const ModuleScopePlugin = require('react-dev-utils/ModuleScopePlugin');
const getCSSModuleLocalIdent = require('react-dev-utils/getCSSModuleLocalIdent');
const ESLintPlugin = require('eslint-webpack-plugin');
const eslintConfig = require('./eslintConfig');
const paths = require('./paths');
const modules = require('./modules');
const getClientEnvironment = require('./env');
const ModuleNotFoundPlugin = require('react-dev-utils/ModuleNotFoundPlugin');
const ForkTsCheckerWebpackPlugin =
  process.env.TSC_COMPILE_ON_ERROR === 'true'
    ? require('react-dev-utils/ForkTsCheckerWarningWebpackPlugin')
    : require('react-dev-utils/ForkTsCheckerWebpackPlugin');
const ReactRefreshWebpackPlugin = require('@pmmmwh/react-refresh-webpack-plugin');
// @remove-on-eject-begin
const getCacheIdentifier = require('react-dev-utils/getCacheIdentifier');
// @remove-on-eject-end
const createEnvironmentHash = require('./webpack/persistentCache/createEnvironmentHash');

// Source maps are resource heavy and can cause out of memory issue for large source files.

const sourceMapVar = process.env.GENERATE_SOURCEMAP;
const shouldUseSourceMap = sourceMapVar !== 'false' && !!sourceMapVar;
const sourceMapType = sourceMapVar !== 'false' && sourceMapVar !== 'true' && sourceMapVar;

const reactRefreshRuntimeEntry = require.resolve('react-refresh/runtime');
const reactRefreshWebpackPluginRuntimeEntry = require.resolve(
  '@pmmmwh/react-refresh-webpack-plugin'
);
const babelRuntimeEntry = require.resolve('babel-preset-react-app');
const babelRuntimeEntryHelpers = require.resolve(
  '@babel/runtime/helpers/esm/assertThisInitialized',
  { paths: [babelRuntimeEntry] }
);
const babelRuntimeRegenerator = require.resolve('@babel/runtime/regenerator', {
  paths: [babelRuntimeEntry],
});

const emitErrorsAsWarnings = process.env.ESLINT_NO_DEV_ERRORS === 'true';
const disableESLintPlugin = process.env.DISABLE_ESLINT_PLUGIN === 'true';
const extractCss = process.env.EXTRACT_CSS === 'true';
const generateManifest = process.env.GENERATE_MANIFEST !== 'false';
const enableScope = process.env.ENABLE_SCOPE === 'true';

const imageInlineSizeLimit = parseInt(
  process.env.IMAGE_INLINE_SIZE_LIMIT || '0'
);

// Check if TypeScript is setup
const useTypeScript = fs.existsSync(paths.appTsConfig);

// Check if Tailwind config exists
const useTailwind = fs.existsSync(
  path.join(paths.appPath, 'tailwind.config.js')
);

const warnedAboutPlugin = {};
const usePostcssPluginIfExists = (name, options = {}) => {
  try {
    if (require.resolve(name)) {
      if (!warnedAboutPlugin[name]) {
        console.log('Using plugin ' + name);
        warnedAboutPlugin[name] = true;
      }
      return { [name]: options };
    }
  } catch (err) { }
  return {};
};

// style files regexes
const cssRegex = /\.css$/;
const cssModuleRegex = /\.module\.css$/;
const sassRegex = /\.(scss|sass)$/;
const sassModuleRegex = /\.module\.(scss|sass)$/;


// Treat files under `src/entry` as separate entry points
const appDirectory = fs.realpathSync(process.cwd());
const entryDirectory = path.join(appDirectory, 'src/entry');
const entries = !fs.existsSync(entryDirectory) ? [] :
  fs.readdirSync(entryDirectory, { withFileTypes: true })
    .filter(x => x.isFile())
    .filter(x => /\.(js|mjs|jsx|ts|tsx)$/.test(x.name))
    .map(x => path.resolve(entryDirectory, x.name));
const entryObj = {};
for (const entry of entries) entryObj[path.basename(entry, path.extname(entry))] = entry;


// This is the production and development configuration.
// It is focused on developer experience, fast rebuilds, and a minimal bundle.
const baseConfigFactory = function (webpackEnv) {
  const isEnvDevelopment = webpackEnv === 'development';
  const isEnvProduction = webpackEnv === 'production';
  const shouldExtractCss = isEnvProduction && extractCss;

  // Variable used for enabling profiling in Production
  // passed into alias object. Uses a flag if passed into the build command
  const isEnvProductionProfile =
    isEnvProduction && process.argv.includes('--profile');

  // We will provide `paths.publicUrlOrPath` to our app
  // as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript.
  // Omit trailing slash as %PUBLIC_URL%/xyz looks better than %PUBLIC_URL%xyz.
  // Get environment variables to inject into our app.
  const env = getClientEnvironment(paths.publicUrlOrPath.slice(0, -1));

  const shouldUseReactRefresh = env.raw.FAST_REFRESH;

  // common function to get style loaders
  const getStyleLoaders = (cssOptions, preProcessor) => {
    const loaders = [
      !shouldExtractCss ? require.resolve('style-loader')
        : {
          loader: MiniCssExtractPlugin.loader,
          // css is located in `static/css`, use '../../' to locate index.html folder
          // in production `paths.publicUrlOrPath` can be a relative path
          options: paths.publicUrlOrPath.startsWith('.')
            ? { publicPath: '../../' }
            : {},
        },
      {
        loader: require.resolve('css-loader'),
        options: cssOptions,
      },
      useTailwind && {
        // Options for PostCSS as we reference these options twice
        // Adds vendor prefixing based on your specified browser support in
        // package.json
        loader: require.resolve('postcss-loader'),
        options: {
          postcssOptions: {
            // Necessary for external CSS imports to work
            // https://github.com/facebook/create-react-app/issues/2677
            ident: 'postcss',
            config: false,
            plugins: {
              ...usePostcssPluginIfExists('postcss-import'),
              'tailwindcss': {},
              ...usePostcssPluginIfExists('postcss-nesting'),
              ...usePostcssPluginIfExists('postcss-custom-properties'),
              ...usePostcssPluginIfExists('postcss-css-variables'),
            },
          },
          sourceMap: isEnvProduction ? shouldUseSourceMap : isEnvDevelopment,
        },
      },
    ].filter(Boolean);
    if (preProcessor) {
      loaders.push(
        {
          loader: require.resolve('resolve-url-loader'),
          options: {
            sourceMap: isEnvProduction ? shouldUseSourceMap : isEnvDevelopment,
            root: paths.appSrc,
          },
        },
        {
          loader: require.resolve(preProcessor),
          options: {
            api: 'modern',
            sourceMap: true,
            warnRuleAsWarning: false,
          },
        }
      );
    }
    return loaders;
  };

  return {
    // Webpack noise constrained to errors and warnings
    stats: 'errors-warnings',
    mode: isEnvProduction ? 'production' : 'development',
    // Stop compilation early in production
    bail: isEnvProduction,
    devtool: isEnvProduction
      ? (shouldUseSourceMap
        ? (sourceMapType || 'source-map')
        : false)
      : isEnvDevelopment && (sourceMapType || 'cheap-module-source-map'),
    // These are the "entry points" to our application.
    // This means they will be the "root" imports that are included in JS bundle.
    entry: {
      index: paths.appIndexJs,
      ...entryObj,
    },
    output: {
      clean: false,
      // The build folder.
      path: paths.appBuild,
      // Add /* filename */ comments to generated require()s in the output.
      pathinfo: isEnvDevelopment,
      // There can be multiple entry bundles, and one file per asynchronous chunk.
      // In development, it does not produce real files.
      filename: isEnvDevelopment ? '[name].js' : process.env.FILENAME || '[name].js',
      // There are also additional JS chunk files if you use code splitting.
      chunkFilename: isEnvProduction
        ? 'static/js/[name].chunk.js'
        : isEnvDevelopment && 'static/js/[name].chunk.js',
      assetModuleFilename: 'static/media/[name][ext][ext]',
      // webpack uses `publicPath` to determine where the app is being served from.
      // It requires a trailing slash, or the file assets will get an incorrect path.
      // We inferred the "public path" (such as / or /my-project) from homepage.
      publicPath: paths.publicUrlOrPath,
      // Point sourcemap entries to original disk location (format as URL on Windows)
      devtoolModuleFilenameTemplate: isEnvProduction
        ? info =>
          path
            .relative(paths.appSrc, info.absoluteResourcePath)
            .replace(/\\/g, '/')
        : isEnvDevelopment &&
        (info => path.resolve(info.absoluteResourcePath).replace(/\\/g, '/')),
    },
    cache: {
      type: 'filesystem',
      version: createEnvironmentHash(env.raw),
      cacheDirectory: paths.appWebpackCache,
      store: 'pack',
      buildDependencies: {
        defaultWebpack: ['webpack/lib/'],
        config: [__filename],
        tsconfig: [paths.appTsConfig, paths.appJsConfig].filter(f =>
          fs.existsSync(f)
        ),
      },
    },
    infrastructureLogging: {
      level: 'none',
    },
    optimization: {
      minimize: false,
      minimizer: [
        // This is only used in production mode
        new TerserPlugin({
          terserOptions: {
            parse: {
              // We want terser to parse ecma 8 code. However, we don't want it
              // to apply any minification steps that turns valid ecma 5 code
              // into invalid ecma 5 code. This is why the 'compress' and 'output'
              // sections only apply transformations that are ecma 5 safe
              // https://github.com/facebook/create-react-app/pull/4234
              ecma: 8,
            },
            compress: {
              ecma: 5,
              warnings: false,
              // Disabled because of an issue with Uglify breaking seemingly valid code:
              // https://github.com/facebook/create-react-app/issues/2376
              // Pending further investigation:
              // https://github.com/mishoo/UglifyJS2/issues/2011
              comparisons: false,
              // Disabled because of an issue with Terser breaking valid code:
              // https://github.com/facebook/create-react-app/issues/5250
              // Pending further investigation:
              // https://github.com/terser-js/terser/issues/120
              inline: 2,
            },
            mangle: {
              safari10: false,
            },
            // Added for profiling in devtools
            keep_classnames: isEnvProductionProfile,
            keep_fnames: isEnvProductionProfile,
            output: {
              ecma: 5,
              comments: false,
              // Turned on because emoji and regex is not minified properly using default
              // https://github.com/facebook/create-react-app/issues/2488
              ascii_only: true,
            },
          },
        }),
      ],
      runtimeChunk: false,
      chunkIds: 'named',
      moduleIds: 'named',
    },
    resolve: {
      // This allows you to set a fallback for where webpack should look for modules.
      // We placed these paths second because we want `node_modules` to "win"
      // if there are any conflicts. This matches Node resolution mechanism.
      // https://github.com/facebook/create-react-app/issues/253
      modules: ['node_modules', paths.appNodeModules].concat(
        modules.additionalModulePaths || []
      ),
      // These are the reasonable defaults supported by the Node ecosystem.
      // We also include JSX as a common component filename extension to support
      // some tools, although we do not recommend using it, see:
      // https://github.com/facebook/create-react-app/issues/290
      // `web` extension prefixes have been added for better support
      // for React Native Web.
      extensions: paths.moduleFileExtensions
        .map(ext => `.${ext}`)
        .filter(ext => useTypeScript || !ext.includes('ts')),
      alias: {
        // Support React Native Web
        // https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
        'react-native': 'react-native-web',
        // react-redux will normally try to access react-dom but will error.
        // This is a different entry point for custom renderers
        'react-redux': 'react-redux/alternate-renderers',
        // Allows for better profiling with ReactDevTools
        ...(isEnvProductionProfile && {
          'react-dom$': 'react-dom/profiling',
          'scheduler/tracing': 'scheduler/tracing-profiling',
        }),
        // Allows replacing react-dom with @reactunity/renderer to support some functionality like `unstable_batchedUpdates`
        'react-dom': '@reactunity/renderer',

        // Replaces react-unity-webgl with @reactunity/renderer/webgl-compat to support its functionality
        'react-unity-webgl': '@reactunity/renderer/webgl-compat',

        ...(modules.webpackAliases || {}),
      },
      plugins: [
        // Prevents users from importing files from outside of src/ (or node_modules/).
        // This often causes confusion because we only process files within src/ with babel.
        // To fix this, we prevent you from importing files out of src/ -- if you'd like to,
        // please link the files into your node_modules/ and let module-resolution kick in.
        // Make sure your source files are compiled, as they will not be processed in any way.
        enableScope && new ModuleScopePlugin(paths.appSrc, [
          paths.appPackageJson,
          reactRefreshRuntimeEntry,
          reactRefreshWebpackPluginRuntimeEntry,
          babelRuntimeEntry,
          babelRuntimeEntryHelpers,
          babelRuntimeRegenerator,
        ]),
      ].filter(Boolean),
    },
    module: {
      strictExportPresence: true,
      rules: [
        // Handle node_modules packages that contain sourcemaps
        shouldUseSourceMap && {
          enforce: 'pre',
          exclude: /@babel(?:\/|\\{1,2})runtime/,
          test: /\.(js|mjs|jsx|ts|tsx|css)$/,
          loader: require.resolve('source-map-loader'),
        },
        {
          // "oneOf" will traverse all following loaders until one will
          // match the requirements. When no loader matches it will fall
          // back to the "file" loader at the end of the loader list.
          oneOf: [
            // "url" loader works like "file" loader except that it embeds assets
            // smaller than specified limit in bytes as data URLs to avoid requests.
            // A missing `test` is equivalent to a match.
            {
              test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/],
              type: 'asset',
              parser: {
                dataUrlCondition: {
                  maxSize: imageInlineSizeLimit,
                },
              },
            },
            {
              test: /\.svg$/,
              use: [
                {
                  loader: require.resolve('@svgr/webpack'),
                  options: {
                    prettier: false,
                    svgo: false,
                    svgoConfig: {
                      plugins: [{ removeViewBox: false }],
                    },
                    titleProp: true,
                    ref: true,
                    exportType: 'default',
                  },
                },
                {
                  loader: require.resolve('file-loader'),
                  options: {
                    name: 'static/media/[name].[hash].[ext]',
                  },
                },
              ],
              issuer: {
                and: [/\.(ts|tsx|js|jsx|md|mdx)$/],
              },
            },
            // Process application JS with Babel.
            // The preset includes JSX, Flow, TypeScript, and some ESnext features.
            {
              test: /\.(js|mjs|jsx|ts|tsx)$/,
              include: paths.appPath,
              loader: require.resolve('babel-loader'),
              options: {
                customize: require.resolve(
                  'babel-preset-react-app/webpack-overrides'
                ),
                presets: [
                  [
                    require.resolve('./babel-preset-extended'),
                    {
                      runtime: modules.hasJsxRuntime ? 'automatic' : 'classic',
                      flow: false,
                      typescript: true,
                    },
                  ],
                ].filter(Boolean),
                // @remove-on-eject-begin
                babelrc: true,
                configFile: true,
                // Make sure we have a unique cache identifier, erring on the
                // side of caution.
                // We remove this when the user ejects because the default
                // is sane and uses Babel options. Instead of options, we use
                // the react-unity-scripts and babel-preset-react-app versions.
                cacheIdentifier: getCacheIdentifier(
                  isEnvProduction
                    ? 'production'
                    : isEnvDevelopment && 'development',
                  [
                    'babel-plugin-named-asset-import',
                    'babel-preset-react-app',
                    'react-dev-utils',
                    'react-unity-scripts',
                  ]
                ),
                // @remove-on-eject-end
                plugins: [
                  isEnvDevelopment &&
                  shouldUseReactRefresh &&
                  require.resolve('react-refresh/babel'),
                ].filter(Boolean),
                // This is a feature of `babel-loader` for webpack (not Babel itself).
                // It enables caching results in ./node_modules/.cache/babel-loader/
                // directory for faster rebuilds.
                cacheDirectory: true,
                // See #6846 for context on why cacheCompression is disabled
                cacheCompression: false,
                compact: isEnvProduction,
              },
            },
            // Process any JS outside of the app with Babel.
            // Unlike the application JS, we only compile the standard ES features.
            {
              test: /\.(js|mjs)$/,
              exclude: /@babel(?:\/|\\{1,2})runtime/,
              loader: require.resolve('babel-loader'),
              options: {
                babelrc: true,
                configFile: true,
                compact: false,
                presets: [
                  [
                    require.resolve('babel-preset-react-app/dependencies'),
                    { helpers: true },
                  ],
                ],
                cacheDirectory: true,
                // See #6846 for context on why cacheCompression is disabled
                cacheCompression: false,
                // @remove-on-eject-begin
                cacheIdentifier: getCacheIdentifier(
                  isEnvProduction
                    ? 'production'
                    : isEnvDevelopment && 'development',
                  [
                    'babel-plugin-named-asset-import',
                    'babel-preset-react-app',
                    'react-dev-utils',
                    'react-unity-scripts',
                  ]
                ),
                // @remove-on-eject-end
                // Babel sourcemaps are needed for debugging into node_modules
                // code.  Without the options below, debuggers like VSCode
                // show incorrect code and set breakpoints on the wrong lines.
                sourceMaps: shouldUseSourceMap,
                inputSourceMap: shouldUseSourceMap,
              },
            },
            // "postcss" loader applies autoprefixer to our CSS.
            // "css" loader resolves paths in CSS and adds assets as dependencies.
            // "style" loader turns CSS into JS modules that inject <style> tags.
            // In production, we use MiniCSSExtractPlugin to extract that CSS
            // to a file, but in development "style" loader enables hot editing
            // of CSS.
            // By default we support CSS Modules with the extension .module.css
            {
              test: cssRegex,
              exclude: cssModuleRegex,
              use: getStyleLoaders({
                importLoaders: 1,
                sourceMap: isEnvProduction
                  ? shouldUseSourceMap
                  : isEnvDevelopment,
                modules: {
                  mode: 'icss',
                },
              }),
              // Don't consider CSS imports dead code even if the
              // containing package claims to have no side effects.
              // Remove this when webpack adds a warning or an error for this.
              // See https://github.com/webpack/webpack/issues/6571
              sideEffects: true,
            },
            // Adds support for CSS Modules (https://github.com/css-modules/css-modules)
            // using the extension .module.css
            {
              test: cssModuleRegex,
              use: getStyleLoaders({
                importLoaders: 1,
                sourceMap: isEnvProduction
                  ? shouldUseSourceMap
                  : isEnvDevelopment,
                modules: {
                  mode: 'local',
                  namedExport: false,
                  exportLocalsConvention: 'as-is',
                  getLocalIdent: getCSSModuleLocalIdent,
                },
              }),
            },
            // Opt-in support for SASS (using .scss or .sass extensions).
            // By default we support SASS Modules with the
            // extensions .module.scss or .module.sass
            {
              test: sassRegex,
              exclude: sassModuleRegex,
              use: getStyleLoaders(
                {
                  importLoaders: 3,
                  sourceMap: isEnvProduction
                    ? shouldUseSourceMap
                    : isEnvDevelopment,
                  modules: {
                    mode: 'icss',
                  },
                },
                'sass-loader'
              ),
              // Don't consider CSS imports dead code even if the
              // containing package claims to have no side effects.
              // Remove this when webpack adds a warning or an error for this.
              // See https://github.com/webpack/webpack/issues/6571
              sideEffects: true,
            },
            // Adds support for CSS Modules, but using SASS
            // using the extension .module.scss or .module.sass
            {
              test: sassModuleRegex,
              use: getStyleLoaders(
                {
                  importLoaders: 3,
                  sourceMap: isEnvProduction
                    ? shouldUseSourceMap
                    : isEnvDevelopment,
                  modules: {
                    mode: 'local',
                    namedExport: false,
                    exportLocalsConvention: 'as-is',
                    getLocalIdent: getCSSModuleLocalIdent,
                  },
                },
                'sass-loader'
              ),
            },
            // raw-loader is added by React Unity for its usefulness and for the sake of completion
            {
              test: /\.txt$/i,
              use: 'raw-loader',
            },
            // "file" loader makes sure those assets get served by WebpackDevServer.
            // When you `import` an asset, you get its (virtual) filename.
            // In production, they would get copied to the `build` folder.
            // This loader doesn't use a "test" so it will catch all modules
            // that fall through the other loaders.
            {
              // Exclude `js` files to keep "css" loader working as it injects
              // its runtime that would otherwise be processed through "file" loader.
              // Also exclude `json` extensions so they get processed
              // by webpacks internal loaders.
              exclude: [/^$/, /\.(js|mjs|jsx|ts|tsx)$/, /\.json$/],
              type: 'asset/resource',
            },
            // ** STOP ** Are you adding a new loader?
            // Make sure to add the new loader(s) before the "file" loader.
          ],
        },
      ].filter(Boolean),
    },
    plugins: [
      // This gives some necessary context to module not found errors, such as
      // the requesting resource.
      new ModuleNotFoundPlugin(paths.appPath),
      // Makes some environment variables available to the JS code, for example:
      // if (process.env.NODE_ENV === 'production') { ... }. See `./env.js`.
      // It is absolutely essential that NODE_ENV is set to production
      // during a production build.
      // Otherwise React will be compiled in the very slow development mode.
      new webpack.DefinePlugin(env.stringified),
      // Experimental hot reloading for React .
      // https://github.com/facebook/react/tree/main/packages/react-refresh
      isEnvDevelopment &&
      shouldUseReactRefresh &&
      new ReactRefreshWebpackPlugin({
        overlay: false,
      }),
      // Watcher doesn't work well if you mistype casing in a path so we use
      // a plugin that prints an error when you attempt to do this.
      // See https://github.com/facebook/create-react-app/issues/240
      isEnvDevelopment && new CaseSensitivePathsPlugin(),
      shouldExtractCss &&
      new MiniCssExtractPlugin({
        // Options similar to the same options in webpackOptions.output
        // both options are optional
        filename: 'static/css/[name].css',
        chunkFilename: 'static/css/[name].chunk.css',
      }),
      // Generate an asset manifest file with the following content:
      // - "files" key: Mapping of all asset filenames to their corresponding
      //   output file so that tools can pick it up without having to parse
      //   `index.html`
      // - "entrypoints" key: Array of files which are included in `index.html`,
      //   can be used to reconstruct the HTML if necessary
      generateManifest &&
      new WebpackManifestPlugin({
        fileName: 'asset-manifest.json',
        publicPath: paths.publicUrlOrPath,
        generate: (seed, files, entrypoints) => {
          const manifestFiles = files.reduce((manifest, file) => {
            manifest[file.name] = file.path;
            return manifest;
          }, seed);
          const entrypointFiles = entrypoints.index.filter(
            fileName => !fileName.endsWith('.map')
          );

          return {
            files: manifestFiles,
            entrypoints: entrypointFiles,
          };
        },
      }),
      // Moment.js is an extremely popular library that bundles large locale files
      // by default due to how webpack interprets its code. This is a practical
      // solution that requires the user to opt into importing specific locales.
      // https://github.com/jmblog/how-to-optimize-momentjs-with-webpack
      // You can remove this if you don't use Moment.js:
      new webpack.IgnorePlugin({
        resourceRegExp: /^\.\/locale$/,
        contextRegExp: /moment$/,
      }),

      // TypeScript type checking
      useTypeScript &&
      new ForkTsCheckerWebpackPlugin({
        async: isEnvDevelopment,
        typescript: {
          typescriptPath: resolve.sync('typescript', {
            basedir: paths.appNodeModules,
          }),
          configOverwrite: {
            compilerOptions: {
              sourceMap: isEnvProduction
                ? shouldUseSourceMap
                : isEnvDevelopment,
              skipLibCheck: true,
              inlineSourceMap: false,
              declarationMap: false,
              noEmit: true,
              incremental: true,
              tsBuildInfoFile: paths.appTsBuildInfoFile,
            },
          },
          context: paths.appPath,
          diagnosticOptions: {
            syntactic: true,
          },
          mode: 'write-references',
          // profile: true,
        },
        issue: {
          // This one is specifically to match during CI tests,
          // as micromatch doesn't match
          // '../cra-template-typescript/template/src/App.tsx'
          // otherwise.
          include: [
            { file: '../**/src/**/*.{ts,tsx}' },
            { file: '**/src/**/*.{ts,tsx}' },
          ],
          exclude: [
            { file: '**/src/**/__tests__/**' },
            { file: '**/src/**/?(*.){spec|test}.*' },
            { file: '**/src/setupProxy.*' },
            { file: '**/src/setupTests.*' },
          ],
        },
        logger: {
          infrastructure: 'silent',
        },
      }),
      !disableESLintPlugin &&
      new ESLintPlugin({
        // Plugin options
        formatter: require.resolve('react-dev-utils/eslintFormatter'),
        eslintPath: require.resolve('eslint'),
        failOnError: !(isEnvDevelopment && emitErrorsAsWarnings),
        context: paths.appSrc,
        ...eslintConfig,
      }),
    ].filter(Boolean),
    // Turn off performance processing because we utilize
    // our own hints via the FileSizeReporter
    performance: false,
  };
};

module.exports = function (webpackEnv) {
  const baseConfig = baseConfigFactory(webpackEnv);

  if (fs.existsSync(paths.webpackSetup)) {
    const customSetup = require(paths.webpackSetup);

    console.log(`Using custom webpack config found in '${paths.webpackSetup}'`);

    if (typeof customSetup !== 'function') {
      throw new Error('Custom webpack config file must export a function that accepts `env` as first parameter and `defaultConfig` as second');
    }

    return customSetup(webpackEnv, baseConfig);
  }

  return baseConfig;
};