Generate entrypoint

Author: kraenhansen

eslint.config.js

@@ -13,6 +13,8 @@ export default tseslint.config(
     "packages/host/hermes/**",
     "packages/node-addon-examples/examples/**",
     "packages/ferric-example/ferric_example.d.ts",
+    "packages/node-tests/node/**",
+    "packages/node-tests/tests/**",
   ]),
   eslint.configs.recommended,
   tseslint.configs.recommended,
@@ -23,6 +25,7 @@ export default tseslint.config(
       "packages/node-addon-examples/*.js",
       "packages/host/babel-plugin.js",
       "packages/host/react-native.config.js",
+      "packages/node-tests/tests.generated.js",
     ],
     languageOptions: {
       parserOptions: {

packages/node-tests/.gitignore

@@ -1,2 +1,4 @@
 node/
 tests/
+
+tests.generated.js

packages/node-tests/package.json

@@ -2,7 +2,7 @@
   "name": "@react-native-node-api/node-tests",
   "description": "Harness for running the Node.js tests from https://github.com/nodejs/node/tree/main/test",
   "type": "commonjs",
-  "main": "dist/index.js",
+  "main": "tests.generated.js",
   "private": true,
   "homepage": "https://github.com/callstackincubator/react-native-node-api",
   "repository": {
@@ -15,7 +15,8 @@
     "gyp-to-cmake": "gyp-to-cmake ./tests",
     "build-tests": "tsx scripts/build-tests.mts",
     "bundle": "rolldown -c rolldown.config.mts",
-    "bootstrap": "node --run copy-tests && node --run gyp-to-cmake && node --run build-tests && node --run bundle"
+    "generate-entrypoint": "tsx scripts/generate-entrypoint.mts",
+    "bootstrap": "node --run copy-tests && node --run gyp-to-cmake && node --run build-tests && node --run bundle && node --run generate-entrypoint"
   },
   "devDependencies": {
     "bufout": "^0.3.2",

packages/node-tests/scripts/generate-entrypoint.mts

@@ -0,0 +1,62 @@
+import assert from "node:assert/strict";
+import fs from "node:fs";
+import path from "node:path";
+
+const packageRoot = path.join(import.meta.dirname, "..");
+const entrypointPath = path.join(packageRoot, "tests.generated.js");
+
+const testPaths = fs.globSync("**/*.bundle.js", {
+  cwd: path.join(packageRoot, "tests"),
+});
+
+interface TestSuite {
+  [key: string]: string | TestSuite;
+}
+
+const suites: TestSuite = {};
+
+for (const testPath of testPaths) {
+  const paths = testPath.split(path.sep);
+  const testName = paths.pop();
+  assert(typeof testName === "string");
+  let parent: TestSuite = suites;
+  for (const part of paths) {
+    if (!parent[part]) {
+      // Init if missing
+      parent[part] = {};
+    }
+    assert(typeof parent[part] === "object");
+    parent = parent[part];
+  }
+  parent[path.basename(testName, ".bundle.js")] = path.join("tests", testPath);
+}
+
+function suiteToString(suite: TestSuite, indent = 1): string {
+  const padding = "  ".repeat(indent);
+  return Object.entries(suite)
+    .map(([key, value]) => {
+      if (typeof value === "string") {
+        return `${padding}"${key}": () => require("./${value}")`;
+      } else {
+        return `${padding}"${key}": {\n${suiteToString(
+          value,
+          indent + 1
+        )}\n${padding}}`;
+      }
+    })
+    .join(", ");
+}
+
+const comment = "Generated by ./scripts/generate-entrypoint.mts";
+
+console.log(
+  `Writing entrypoint to ${path.relative(
+    import.meta.dirname,
+    entrypointPath
+  )} for ${testPaths.length} tests ...`
+);
+
+fs.writeFileSync(
+  entrypointPath,
+  `/* ${comment} */\nmodule.exports.suites = {\n${suiteToString(suites)}\n};`
+);

packages/node-tests/src/index.ts

@@ -0,0 +1,7 @@
+// Despite the name, this file isn't generated.
+
+export interface TestSuite {
+  [key: string]: TestSuite | (() => void);
+}
+
+export declare const suites: TestSuite;

packages/node-tests/tests.generated.d.ts

@@ -0,0 +1,11 @@
+{
+  "extends": "@tsconfig/node22/tsconfig.json",
+  "compilerOptions": {
+    "composite": true,
+    "declarationMap": true,
+    "emitDeclarationOnly": true,
+    "outDir": "dist",
+    "types": []
+  },
+  "include": ["common.ts"]
+}

packages/node-tests/tsconfig.common.json

@@ -1,7 +1,7 @@
 {
   "files": [],
   "references": [
-    { "path": "./tsconfig.tests.json" },
+    { "path": "./tsconfig.common.json" },
     { "path": "./tsconfig.node-scripts.json" }
   ]
 }