test: add typecheck test

.github/workflows/ci.yml

@@ -0,0 +1,37 @@
+name: ci
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+# https://github.com/vitejs/vite/blob/main/.github/workflows/ci.yml
+env:
+  # 7 GiB by default on GitHub, setting to 6 GiB
+  # https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners#supported-runners-and-hardware-resources
+  NODE_OPTIONS: --max-old-space-size=6144
+
+# Remove default permissions of GITHUB_TOKEN for security
+# https://docs.github.com/en/actions/using-jobs/assigning-permissions-to-jobs
+permissions: {}
+
+jobs:
+  typecheck:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
+      - run: corepack enable
+      - uses: actions/setup-node@0a44ba7841725637a19e28fa30b79a866c81b0a6 # v4.0.4
+        with:
+          node-version: 20
+          cache: "pnpm"
+
+      - name: Install dependencies
+        run: pnpm install
+
+      - name: Typecheck
+        run: pnpm typecheck

.scripts/typecheck.mjs

@@ -0,0 +1,28 @@
+import { basename } from 'node:path'
+import { globby } from 'globby'
+import { exec } from 'tinyexec'
+import {consola} from 'consola'
+
+const packages = await globby([
+  'shared/**/package.json',
+  'examples/**/package.json',
+  '!**/node_modules',
+  '!**/.nitro',
+  '!**/.vercel',
+  '!**/.output',
+], { absolute: true })
+
+for (const pkg of packages) {
+  const cwd = pkg.replace('/package.json', '')
+  const options = { nodeOptions: { cwd } }
+
+  await exec('nuxi', ['prepare'], options)
+  const res = await exec('tsc', ['--noEmit'], options)
+  const output = (res.stderr).trim()
+  if (output) {
+    consola.withTag(basename(cwd)).error(output)
+    process.exit(1)
+  } else {
+    consola.success('type checked', basename(cwd))
+  }
+}

examples/advanced/jsx/components/MyComponent.tsx

@@ -2,7 +2,8 @@ export default defineComponent({
   props: {
     message: String
   },
-  render: (props) => {
+  // @ts-expect-error investigate why this is not typed
+  render(props) {
     return (
     <div>
       { props.message }

examples/hello-world/tsconfig.json

@@ -0,0 +1,3 @@
+{
+  "extends": "./.nuxt/tsconfig.json"
+}

package.json

@@ -4,15 +4,19 @@
   "version": "1.0.0",
   "license": "MIT",
   "scripts": {
-    "build": "turbo run build && node .scripts/build.mjs"
+    "build": "turbo run build && node .scripts/build.mjs",
+    "typecheck": "node .scripts/typecheck.mjs"
   },
   "devDependencies": {
     "@nuxt/kit": "3.12.2",
     "@types/node": "^20.11.30",
+    "consola": "^3.2.3",
     "globby": "^14.0.1",
     "pathe": "^1.1.2",
     "pkg-types": "^1.0.3",
-    "turbo": "^2.1.2"
+    "tinyexec": "^0.3.0",
+    "turbo": "^2.1.2",
+    "typescript": "^5.6.2"
   },
   "resolutions": {
     "@nuxt/kit": "3.12.2",