feat: package is now ESM (#392)

* feat: package is now ESM

BREAKING CHANGE: package is now ESM

* fix(docs): update for ESM

README.md

@@ -26,8 +26,7 @@ It does not require any configuration, but instead reads [the `GITHUB_TOKEN` env
 Install with <code>npm install @octokit/auth-action</code>
 
 ```js
-const { createActionAuth } = require("@octokit/auth-action");
-// or: import { createActionAuth } from "@octokit/auth-action";
+import { createActionAuth } from "@octokit/auth-action";
 
 const auth = createActionAuth();
 const authentication = await auth();

package.json

@@ -5,12 +5,13 @@
   },
   "version": "0.0.0-development",
   "description": "GitHub API token authentication for GitHub Actions",
+  "type": "module",
   "scripts": {
     "build": "node scripts/build.mjs && tsc -p tsconfig.json",
     "lint": "prettier --check '{src,test}/**/*.{ts,md}' README.md *.json",
     "lint:fix": "prettier --write '{src,test}/**/*.{ts,md}' README.md *.json",
     "pretest": "npm run -s lint",
-    "test": "jest --coverage",
+    "test": "NODE_OPTIONS=\"$NODE_OPTIONS --experimental-vm-modules\" npx jest --coverage",
     "semantic-release": "semantic-release"
   },
   "repository": "github:octokit/auth-action.js",
@@ -24,12 +25,12 @@
   "author": "Gregor Martynus (https://github.com/gr2m)",
   "license": "MIT",
   "dependencies": {
-    "@octokit/auth-token": "^4.0.0",
-    "@octokit/types": "^12.0.0"
+    "@octokit/auth-token": "^5.0.0",
+    "@octokit/types": "^12.6.0"
   },
   "devDependencies": {
-    "@octokit/request": "^8.0.2",
-    "@octokit/tsconfig": "^2.0.0",
+    "@octokit/request": "^9.0.1",
+    "@octokit/tsconfig": "^3.0.0",
     "@types/jest": "^29.0.0",
     "esbuild": "^0.20.0",
     "fetch-mock": "npm:@gr2m/fetch-mock@9.11.0-pull-request-644.1",
@@ -40,11 +41,15 @@
     "typescript": "^5.0.0"
   },
   "jest": {
+    "extensionsToTreatAsEsm": [
+      ".ts"
+    ],
     "transform": {
       "^.+\\.(ts|tsx)$": [
         "ts-jest",
         {
-          "tsconfig": "test/tsconfig.test.json"
+          "tsconfig": "test/tsconfig.test.json",
+          "useESM": true
         }
       ]
     },

scripts/build.mjs

@@ -39,17 +39,6 @@ async function main() {
 
   const entryPoints = ["./pkg/dist-src/index.js"];
 
-  // Build the a CJS Node.js bundle
-  await esbuild.build({
-    entryPoints,
-    outdir: "pkg/dist-node",
-    bundle: true,
-    platform: "node",
-    target: "node14",
-    format: "cjs",
-    ...sharedOptions,
-  }),
-
   // Copy the README, LICENSE to the pkg folder
   await copyFile("LICENSE", "pkg/LICENSE");
   await copyFile("README.md", "pkg/README.md");
@@ -66,11 +55,15 @@ async function main() {
     JSON.stringify(
       {
         ...pkg,
-        files: ["dist-*/**", "bin/**"],
-        main: "dist-node/index.js",
-        module: "dist-web/index.js",
+        files: ["dist-*/**"],
+        main: "dist-src/index.js",
         types: "dist-types/index.d.ts",
-        source: "dist-src/index.js",
+        exports: {
+          ".": {
+            types: "./dist-types/index.d.ts",
+            import: "./dist-src/index.js",
+          }
+        },
         sideEffects: false,
       },
       null,

test/tsconfig.test.json

@@ -3,7 +3,6 @@
   "compilerOptions": {
     "emitDeclarationOnly": false,
     "noEmit": true,
-    "verbatimModuleSyntax": false,
     "allowImportingTsExtensions": true
   },
   "include": [