Avoid using require in src files

.eslintrc.cjs

@@ -46,7 +46,6 @@ module.exports = {
         "@babel/development/no-deprecated-clone": "error",
         "guard-for-in": "error",
         "import/extensions": ["error", { json: "always", cjs: "always" }],
-        "no-restricted-globals": ["error", ...cjsGlobals],
       },
       globals: { PACKAGE_JSON: "readonly" },
     },
@@ -73,6 +72,9 @@ module.exports = {
     },
     {
       files: [
+        "packages/*/src/**/*.{js,ts}",
+        "codemods/*/src/**/*.{js,ts}",
+        "eslint/*/src/**/*.{js,ts}",
         "packages/*/test/**/*.js",
         "codemods/*/test/**/*.js",
         "eslint/*/test/**/*.js",
@@ -81,7 +83,7 @@ module.exports = {
       ],
       excludedFiles: [
         // @babel/register is the require() hook, so it will always be CJS-based
-        "packages/babel-register/test/**/*.js",
+        "packages/babel-register/**/*.js",
       ],
       rules: {
         "no-restricted-globals": ["error", ...cjsGlobals],

babel.config.js

@@ -473,12 +473,18 @@ function pluginImportMetaUrl({ types: t }) {
     t.isIdentifier(node.meta, { name: "import" }) &&
     t.isIdentifier(node.property, { name: "meta" });
 
+  const isImportMetaUrl = node =>
+    t.isMemberExpression(node, { computed: false }) &&
+    t.isIdentifier(node.property, { name: "url" }) &&
+    isImportMeta(node.object);
+
   return {
     visitor: {
       Program(programPath) {
         // We must be sure to run this before the instanbul plugins, because its
         // instrumentation breaks our detection.
         programPath.traverse({
+          // fileURLToPath(import.meta.url)
           CallExpression(path) {
             const { node } = path;
 
@@ -501,6 +507,25 @@ function pluginImportMetaUrl({ types: t }) {
 
             path.replaceWith(t.identifier("__filename"));
           },
+
+          // const require = createRequire(import.meta.url)
+          VariableDeclarator(path) {
+            const { node } = path;
+
+            if (
+              !t.isIdentifier(node.id, { name: "require" }) ||
+              !t.isCallExpression(node.init) ||
+              !t.isIdentifier(node.init.callee, { name: "createRequire" }) ||
+              node.init.arguments.length !== 1 ||
+              !isImportMetaUrl(node.init.arguments[0])
+            ) {
+              return;
+            }
+
+            // Let's just remove this declaration to unshadow the "global" cjs require.
+            path.remove();
+          },
+
           MetaProperty(path) {
             if (isImportMeta(path.node)) {
               throw path.buildCodeFrameError("Unsupported import.meta");

lib/third-party-libs.js.flow

@@ -2,6 +2,10 @@
  * Basic declarations for the npm modules we use.
  */
 
+ declare module "module" {
+   declare export function createRequire(url: any): any;
+ }
+
 declare module "debug" {
   declare export default (namespace: string) => (formatter: string, ...args: any[]) => void;
 }

packages/babel-cli/src/babel/util.js

@@ -4,6 +4,7 @@ import readdirRecursive from "fs-readdir-recursive";
 import * as babel from "@babel/core";
 import path from "path";
 import fs from "fs";
+import { createRequire } from "module";
 
 export function chmod(src: string, dest: string): void {
   try {
@@ -119,6 +120,9 @@ process.on("uncaughtException", function (err) {
 });
 
 export function requireChokidar(): Object {
+  // $FlowIgnore - https://github.com/facebook/flow/issues/6913#issuecomment-662787504
+  const require = createRequire(import /*::("")*/.meta.url);
+
   try {
     // todo(babel 8): revert `@nicolo-ribaudo/chokidar-2` hack
     return parseInt(process.versions.node) >= 8

packages/babel-core/src/config/files/configuration.js

@@ -18,6 +18,10 @@ import type { CallerMetadata } from "../validation/options";
 
 import * as fs from "../../gensync-utils/fs";
 
+import { createRequire } from "module";
+// $FlowIgnore - https://github.com/facebook/flow/issues/6913#issuecomment-662787504
+const require = createRequire(import /*::("")*/.meta.url);
+
 const debug = buildDebug("babel:config:loading:files:configuration");
 
 export const ROOT_CONFIG_FILENAMES = [

packages/babel-core/src/config/files/module-types.js

@@ -2,6 +2,9 @@ import { isAsync, waitFor } from "../../gensync-utils/async";
 import type { Handler } from "gensync";
 import path from "path";
 import { pathToFileURL } from "url";
+import { createRequire } from "module";
+
+const require = createRequire(import.meta.url);
 
 let import_;
 try {

packages/babel-core/src/config/files/plugins.js

@@ -9,6 +9,10 @@ import path from "path";
 import { type Handler } from "gensync";
 import loadCjsOrMjsDefault from "./module-types";
 
+import { createRequire } from "module";
+// $FlowIgnore - https://github.com/facebook/flow/issues/6913#issuecomment-662787504
+const require = createRequire(import /*::("")*/.meta.url);
+
 const debug = buildDebug("babel:config:loading:files:plugins");
 
 const EXACT_RE = /^module:/;

packages/babel-helper-fixtures/src/index.ts

@@ -3,6 +3,9 @@ import semver from "semver";
 import path from "path";
 import fs from "fs";
 import { fileURLToPath } from "url";
+import { createRequire } from "module";
+
+const require = createRequire(import.meta.url);
 
 const nodeVersion = semver.clean(process.version.slice(1));
 

packages/babel-helper-transform-fixture-test-runner/src/index.js

@@ -17,6 +17,9 @@ import QuickLRU from "quick-lru";
 import escapeRegExp from "./escape-regexp.cjs";
 import { fileURLToPath } from "url";
 
+import { createRequire } from "module";
+const require = createRequire(import.meta.url);
+
 import _checkDuplicatedNodes from "babel-check-duplicated-nodes";
 const checkDuplicatedNodes = _checkDuplicatedNodes.default;
 

packages/babel-node/src/_babel-node.js

@@ -10,6 +10,9 @@ import "regenerator-runtime/runtime";
 import register from "@babel/register";
 import { fileURLToPath } from "url";
 
+import { createRequire } from "module";
+const require = createRequire(import.meta.url);
+
 const program = new commander.Command("babel-node");
 
 function collect(value, previousValue): Array<string> {

packages/babel-plugin-transform-runtime/src/get-runtime-path/index.js

@@ -1,5 +1,8 @@
 import path from "path";
 
+import { createRequire } from "module";
+const require = createRequire(import.meta.url);
+
 export default function (moduleName, dirname, absoluteRuntime) {
   if (absoluteRuntime === false) return moduleName;