chore(webpack): remove additionalModulePaths since baseUrl isn't set …

…in our tsconfig

client/config/modules.js

@@ -1,51 +1,7 @@
 import path from "node:path";
 import resolve from "resolve";
-import chalk from "react-dev-utils/chalk.js";
 import paths from "./paths.js";
 
-/**
- * Get additional module paths based on the baseUrl of a compilerOptions object.
- *
- * @param {Object} options
- */
-function getAdditionalModulePaths(options = {}) {
-  const baseUrl = options.baseUrl;
-
-  if (!baseUrl) {
-    return "";
-  }
-
-  const baseUrlResolved = path.resolve(paths.appPath, baseUrl);
-
-  // We don't need to do anything if `baseUrl` is set to `node_modules`. This is
-  // the default behavior.
-  if (path.relative(paths.appNodeModules, baseUrlResolved) === "") {
-    return null;
-  }
-
-  // Allow the user set the `baseUrl` to `appSrc`.
-  if (path.relative(paths.appSrc, baseUrlResolved) === "") {
-    return [paths.appSrc];
-  }
-
-  // If the path is equal to the root directory we ignore it here.
-  // We don't want to allow importing from the root directly as source files are
-  // not transpiled outside of `src`. We do allow importing them with the
-  // absolute path (e.g. `src/Components/Button.js`) but we set that up with
-  // an alias.
-  if (path.relative(paths.appPath, baseUrlResolved) === "") {
-    return null;
-  }
-
-  // Otherwise, throw an error.
-  throw new Error(
-    chalk.red.bold(
-      "Your project's `baseUrl` can only be set to `src` or `node_modules`." +
-        " Create React App does not support other values at this time."
-    )
-  );
-}
-
 /**
  * Get webpack aliases based on the baseUrl of a compilerOptions object.
  *
@@ -77,10 +33,7 @@ async function getModules() {
   const config = ts.readConfigFile(paths.appTsConfig, ts.sys.readFile).config;
   const options = config.compilerOptions || {};
 
-  const additionalModulePaths = getAdditionalModulePaths(options);
-
   return {
-    additionalModulePaths: additionalModulePaths,
     webpackAliases: getWebpackAliases(options),
   };
 }

client/config/webpack.config.js

@@ -262,9 +262,7 @@ function config(webpackEnv) {
       // 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 || []
-      ),
+      modules: ["node_modules", paths.appNodeModules],
       // 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: