Add CI: typecheck, lint & format

.github/workflows/ci.yml

@@ -0,0 +1,31 @@
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  ci:
+    runs-on: ubuntu-20.04
+    strategy:
+      matrix:
+        bun-version: [latest]
+    timeout-minutes: 20
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v3
+
+      - name: Setup bun
+        uses: oven-sh/setup-bun@v1
+        with:
+          bun-version: ${{ matrix.bun-version }}
+
+      - name: Install dependencies
+        run: bun install
+
+      - name: Typecheck
+        run: bun run typecheck
+
+      - name: Lint
+        run: bun run lint
+
+      - name: Format check
+        run: bun run format:check

package.json

@@ -10,7 +10,8 @@
     "lint": "eslint app/",
     "lint:fix": "eslint app --fix",
     "format:check": "prettier --check app/",
-    "format:fix": "prettier --write app/"
+    "format:fix": "prettier --write app/",
+    "typecheck": "tsc --noEmit"
   },
   "dependencies": {
     "@elysiajs/cors": "^1.0.2",