Avoid using CJS globals in internal source files (#12963)

* Lint against CJS globals in modules

* Use `import.meta.url` instead of `__filename` in `src` files

* Prepare fixtures runner for `import.meta.url`

* Use `import.meta.url` instead of `__filename` in `test/index` files

* Remove `__dirname` from remaining test files

dirname

* Avoid using `module` in `src` files

* Avoid using `require` in `src` files

* Avoid using `require` in `test` files

* Update `@types/node`

* Compile dynamic import in `@babel/node`

* Fix windows

* Use `@babel/plugin-proposal-dynamic-import` from npm

packages/babel-plugin-transform-modules-commonjs/test/copied-nodes.js

@@ -1,12 +1,16 @@
-const babel = require("@babel/core");
+import * as babel from "@babel/core";
+import { fileURLToPath } from "url";
+import path from "path";
+
+import transformCommonJS from "..";
 
 test("Doesn't use the same object for two different nodes in the AST", function () {
   const code = 'import Foo from "bar"; Foo; Foo;';
 
   const ast = babel.transform(code, {
-    cwd: __dirname,
+    cwd: path.dirname(fileURLToPath(import.meta.url)),
     ast: true,
-    plugins: [[require("../"), { loose: true }]],
+    plugins: [[transformCommonJS, { loose: true }]],
   }).ast;
 
   expect(ast.program.body[0].declarations[0].id.type).toBe("Identifier");

packages/babel-plugin-transform-modules-commonjs/test/esmodule-flag.js

@@ -1,5 +1,9 @@
-const babel = require("@babel/core");
-const vm = require("vm");
+import * as babel from "@babel/core";
+import vm from "vm";
+import { fileURLToPath } from "url";
+import path from "path";
+
+import transformCommonJS from "..";
 
 test("Re-export doesn't overwrite __esModule flag", function () {
   let code = 'export * from "./dep";';
@@ -13,14 +17,14 @@ test("Re-export doesn't overwrite __esModule flag", function () {
     },
     require: function (id) {
       if (id === "./dep") return depStub;
-      return require(id);
+      throw new Error("Unexpected dependency: " + id);
     },
   };
   context.exports = context.module.exports;
 
   code = babel.transform(code, {
-    cwd: __dirname,
-    plugins: [[require("../"), { loose: true }]],
+    cwd: path.dirname(fileURLToPath(import.meta.url)),
+    plugins: [[transformCommonJS, { loose: true }]],
     ast: false,
   }).code;
 

packages/babel-plugin-transform-modules-commonjs/test/index.js

@@ -1,3 +1,3 @@
 import runner from "@babel/helper-plugin-test-runner";
 
-runner(__dirname);
+runner(import.meta.url);