feat(lakebase): support CJS consumers and validate exports via attw (#408)

Author: MarioCadenas

package.json

@@ -55,6 +55,7 @@
     ]
   },
   "devDependencies": {
+    "@arethetypeswrong/core": "0.18.4",
     "@biomejs/biome": "2.2.6",
     "@commitlint/cli": "19.8.1",
     "@commitlint/config-conventional": "19.8.1",

packages/appkit-ui/tsdown.config.ts

@@ -3,6 +3,11 @@ import { defineConfig } from "tsdown";
 export default defineConfig([
   {
     publint: true,
+    attw: {
+      profile: "esm-only",
+      level: "error",
+      excludeEntrypoints: ["./styles.css"],
+    },
     name: "@databricks/appkit-ui",
     entry: [
       "src/js/index.ts",

packages/appkit/tsdown.config.ts

@@ -3,6 +3,11 @@ import { defineConfig } from "tsdown";
 export default defineConfig([
   {
     publint: true,
+    attw: {
+      profile: "esm-only",
+      level: "error",
+      excludeEntrypoints: ["./type-generator"],
+    },
     name: "@databricks/appkit",
     entry: ["src/index.ts", "src/beta.ts"],
     outDir: "dist",

packages/lakebase/package.json

@@ -3,7 +3,8 @@
   "type": "module",
   "version": "0.3.0",
   "description": "PostgreSQL driver for Databricks Lakebase Autoscaling with automatic OAuth token refresh",
-  "main": "./dist/index.js",
+  "main": "./dist/index.cjs",
+  "module": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "packageManager": "pnpm@10.21.0",
   "repository": {
@@ -30,9 +31,15 @@
   ],
   "exports": {
     ".": {
-      "types": "./dist/index.d.ts",
       "development": "./src/index.ts",
-      "default": "./dist/index.js"
+      "import": {
+        "types": "./dist/index.d.ts",
+        "default": "./dist/index.js"
+      },
+      "require": {
+        "types": "./dist/index.d.cts",
+        "default": "./dist/index.cjs"
+      }
     },
     "./package.json": "./package.json"
   },
@@ -56,10 +63,18 @@
   "devDependencies": {
     "@types/pg": "8.16.0"
   },
-  "module": "./dist/index.js",
   "publishConfig": {
     "exports": {
-      ".": "./dist/index.js",
+      ".": {
+        "import": {
+          "types": "./dist/index.d.ts",
+          "default": "./dist/index.js"
+        },
+        "require": {
+          "types": "./dist/index.d.cts",
+          "default": "./dist/index.cjs"
+        }
+      },
       "./package.json": "./package.json"
     }
   }

packages/lakebase/tsdown.config.ts

@@ -3,11 +3,15 @@ import { defineConfig } from "tsdown";
 export default defineConfig([
   {
     publint: true,
+    attw: {
+      profile: "strict",
+      level: "error",
+    },
     name: "@databricks/lakebase",
     entry: "src/index.ts",
     outDir: "dist",
     hash: false,
-    format: "esm",
+    format: ["esm", "cjs"],
     platform: "node",
     minify: false,
     dts: {
@@ -17,8 +21,8 @@ export default defineConfig([
     clean: false,
     unbundle: true,
     noExternal: [],
-    outExtensions: () => ({
-      js: ".js",
+    outExtensions: ({ format }) => ({
+      js: format === "cjs" ? ".cjs" : ".js",
     }),
     external: (id) => {
       // Bundle all internal modules