fix: esm exports by building with tsup

.github/workflows/build.yml

@@ -50,7 +50,7 @@ jobs:
         run: yarn install --ignore-optional --offline
 
       - name: Format and Lint check
-        run: yarn check-format && yarn lint
+        run: yarn check-format && yarn check-tsc && yarn check-exports && yarn lint
 
       - name: Tests and Coverage
         run: yarn test --coverage

package.json

@@ -8,40 +8,46 @@
     "type": "git",
     "url": "https://github.com/zalando-incubator/graphql-jit.git"
   },
-  "main": "dist/cjs/index.js",
-  "module": "dist/esm/index.js",
+  "main": "dist/index.js",
+  "module": "dist/index.mjs",
   "exports": {
+    "./package.json": "./package.json",
     ".": {
-      "import": "./dist/esm/index.js",
-      "require": "./dist/cjs/index.js"
+      "import": "./dist/index.mjs",
+      "require": "./dist/index.js"
     },
     "./dist": {
-      "import": "./dist/esm/index.js",
-      "require": "./dist/cjs/index.js"
+      "import": "./dist/index.mjs",
+      "require": "./dist/index.js"
     },
     "./dist/*": {
-      "import": "./dist/esm/*.js",
-      "require": "./dist/cjs/*.js"
+      "import": "./dist/*.mjs",
+      "require": "./dist/*.js"
+    },
+    "./dist/*.mjs": {
+      "import": "./dist/*.mjs",
+      "require": "./dist/*.js"
     },
     "./dist/*.js": {
-      "import": "./dist/esm/*.js",
-      "require": "./dist/cjs/*.js"
+      "import": "./dist/*.mjs",
+      "require": "./dist/*.js"
     }
   },
   "scripts": {
-    "precommit": "lint-staged",
-    "prepublishOnly": "yarn && yarn build",
-    "format": "prettier --write 'src/**/*.ts'",
+    "benchmark": "NODE_ENV=production ./src/__benchmarks__/benchmarks.ts",
+    "build": "yarn tsup-node",
+    "check-exports": "attw --pack .",
     "check-format": "prettier -l 'src/**/*.ts'",
-    "lint": "eslint --ext .ts .",
-    "lint-fix": "eslint --ext .ts . --fix",
-    "build": "yarn build:esm && yarn build:cjs",
-    "build:esm": "tsc --project tsconfig.esm.json",
-    "build:cjs": "tsc --project tsconfig.cjs.json",
-    "test": "jest",
-    "mutation-test": "stryker run",
+    "check-tsc": "tsc --noEmit",
     "codecov": "codecov",
-    "benchmark": "NODE_ENV=production ./src/__benchmarks__/benchmarks.ts"
+    "eslint": "eslint --ext .ts .",
+    "format": "prettier --write 'src/**/*.ts'",
+    "lint-fix": "yarn eslint --fix",
+    "lint": "yarn eslint",
+    "mutation-test": "stryker run",
+    "precommit": "lint-staged",
+    "prepublishOnly": "yarn && yarn build",
+    "test": "jest"
   },
   "files": [
     "dist/*"
@@ -75,6 +81,7 @@
     "graphql": ">=15"
   },
   "devDependencies": {
+    "@arethetypeswrong/cli": "^0.16.2",
     "@graphql-tools/schema": "^10.0.0",
     "@stryker-mutator/core": "^7.1.1",
     "@stryker-mutator/jest-runner": "^7.1.1",
@@ -99,6 +106,7 @@
     "jest": "^29.7.0",
     "lint-staged": "^14.0.1",
     "prettier": "^3.0.3",
+    "tsup": "^8.2.4",
     "typescript": "^5.2.2"
   },
   "dependencies": {

tsconfig.json

@@ -17,5 +17,5 @@
     "lib": ["esnext.asynciterable", "ES2022"],
     "typeRoots": ["./types", "./node_modules/@types"]
   },
-  "include": ["src/**/*", "types/**/*"]
+  "include": ["src/**/*", "types/**/*", "tsup.config.ts"]
 }

tsup.config.ts

@@ -0,0 +1,12 @@
+import { defineConfig } from "tsup";
+
+export default defineConfig({
+  entryPoints: ["src/*.ts"],
+  bundle: false,
+  format: ["cjs", "esm"],
+  dts: true,
+  sourcemap: true,
+  outDir: "dist",
+  clean: true,
+  minify: false
+});