ci: set up linting and github actions

.github/workflows/lint.yml

@@ -0,0 +1,12 @@
+name: CI
+on: [push, pull_request]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: oven-sh/setup-bun@v2
+      - name: Install modules
+        run: bun install --frozen-lockfile
+      - name: Run ESLint
+        run: bun run lint

eslint.config.js

@@ -0,0 +1,15 @@
+import eslintPluginAstro from "eslint-plugin-astro"
+import js from "@eslint/js"
+import tseslint from "typescript-eslint"
+
+export default tseslint.config(
+  // add more generic rule sets here, such as:
+  js.configs.recommended,
+  eslintPluginAstro.configs.recommended,
+  {
+    rules: {
+      // override/add rules settings here, such as:
+      // "astro/no-set-html-directive": "error"
+    },
+  }
+)

package.json

@@ -7,13 +7,20 @@
     "build": "astro build",
     "preview": "astro preview",
     "astro": "astro",
-    "format": "prettier --write ."
+    "format": "prettier --write .",
+    "lint": "eslint ."
   },
   "dependencies": {
     "astro": "^5.1.1"
   },
   "devDependencies": {
+    "@eslint/eslintrc": "^3.2.0",
+    "@typescript-eslint/eslint-plugin": "^8.18.2",
+    "@typescript-eslint/parser": "^8.18.2",
+    "eslint": "^9.17.0",
+    "eslint-plugin-astro": "^1.3.1",
     "prettier": "^3.4.2",
-    "prettier-plugin-astro": "^0.14.1"
+    "prettier-plugin-astro": "^0.14.1",
+    "typescript-eslint": "^8.18.2"
   }
 }

src/components/Welcome.astro

@@ -1,6 +1,7 @@
 ---
 import astroLogo from "@/assets/astro.svg"
 import background from "@/assets/background.svg"
+const a = ""
 ---
 
 <div id="container">

tsconfig.json

@@ -1,6 +1,6 @@
 {
   "extends": "astro/tsconfigs/strict",
-  "include": [".astro/types.d.ts", "**/*", ".prettierrc.mjs"],
+  "include": [".astro/types.d.ts", "**/*", ".prettierrc.mjs", "eslint.config.js"],
   "exclude": ["dist"],
   "compilerOptions": {
     "paths": {