add new reverse-exports package

packages/reverse-exports/.gitignore

@@ -0,0 +1,7 @@
+/node_modules
+/src/**/*.js
+/src/**/*.d.ts
+/src/**/*.map
+/tests/**/*.js
+/tests/**/*.d.ts
+/tests/**/*.map

packages/reverse-exports/jest.config.js

@@ -0,0 +1,4 @@
+module.exports = {
+  testEnvironment: 'node',
+  testMatch: ['<rootDir>/tests/**/*.test.js'],
+};

packages/reverse-exports/package.json

@@ -0,0 +1,14 @@
+{
+  "name": "reverse-exports",
+  "version": "0.0.0",
+  "description": "",
+  "main": "src/index.js",
+  "scripts": {
+    "test": "jest"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+  }
+}

packages/reverse-exports/src/index.ts

@@ -0,0 +1,9 @@
+import { posix } from 'path';
+
+export default function reversePackageExports(
+  packageJSON: { exports?: any; name: string },
+  relativePath: string
+): string {
+  // TODO actually read from exports and don't be super naive
+  return posix.join(packageJSON.name, relativePath.replace(/^.\/dist\//, `./`).replace(/\.js$/, ''));
+}

packages/reverse-exports/tests/reverse-exports.test.ts

@@ -0,0 +1,10 @@
+import reversePackageExports from '../src';
+
+describe('reverse exports', function () {
+  it('correctly reversed exports', function () {
+    // TODO actually pass exports to this for it to read from
+    expect(reversePackageExports({ name: 'best-addon' }, './dist/_app_/components/face.js')).toBe(
+      'best-addon/_app_/components/face'
+    );
+  });
+});