build: automatic formatting and linting (#4)

* build: automatic formatting and linting

* chore: lint and format

.eslintrc.cjs

@@ -0,0 +1,29 @@
+/** @type {import('eslint/lib/shared/types').ConfigData} */
+module.exports = {
+  root: true,
+  env: {
+      node: true,
+      es6: true,
+  },
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+      ecmaVersion: 2020,
+      sourceType: 'module',
+  },
+  extends: [
+      'eslint:recommended',
+      'plugin:prettier/recommended',
+      'plugin:astro/recommended',
+  ],
+  overrides: [
+      {
+        files: ['*.astro'],
+        parser: 'astro-eslint-parser',
+        parserOptions: {
+          parser: '@typescript-eslint/parser',
+          extraFileExtensions: ['.astro'],
+        },
+      },
+  ],
+  ignorePatterns: ['dist', '.eslintrc.cjs'],
+};

.github/workflows/ci.yml

@@ -15,6 +15,11 @@ jobs:
       - uses: actions/checkout@v3
       - uses: pnpm/action-setup@v2
 
-      - run: |
-          pnpm install
-          pnpm build
+      - name: Install
+        run: pnpm install
+
+      - name: Build
+        run: pnpm build
+
+      - name: Lint
+        run: pnpm lint

.prettierrc.cjs

@@ -0,0 +1,14 @@
+/** @type {import('prettier').Config} */
+module.exports = {
+  plugins: [require.resolve('prettier-plugin-astro')],
+  singleQuote: true,
+  htmlWhitespaceSensitivity: 'ignore',
+  overrides: [
+    {
+      files: '*.astro',
+      options: {
+        parser: 'astro',
+      },
+    },
+  ],
+};

.vscode/settings.json

@@ -0,0 +1,9 @@
+{
+  "eslint.validate": [
+    "javascript",
+    "javascriptreact",
+    "astro",
+    "typescript",
+    "typescriptreact"
+  ]
+}

package.json

@@ -9,7 +9,8 @@
     "build": "astro build",
     "deploy": "touch dist/.nojekyll && gh-pages --dist dist --dotfiles true",
     "preview": "astro preview",
-    "astro": "astro"
+    "astro": "astro",
+    "lint": "eslint . --max-warnings 0 --ext .astro,.ts,.js"
   },
   "dependencies": {
     "@astrojs/mdx": "^0.19.7",
@@ -21,6 +22,13 @@
     "tailwindcss": "^3.3.3"
   },
   "devDependencies": {
-    "gh-pages": "^5.0.0"
+    "@typescript-eslint/parser": "^6.1.0",
+    "eslint": "^8.45.0",
+    "eslint-config-prettier": "^8.8.0",
+    "eslint-plugin-astro": "^0.27.2",
+    "eslint-plugin-prettier": "^5.0.0",
+    "gh-pages": "^5.0.0",
+    "prettier": "^3.0.0",
+    "prettier-plugin-astro": "^0.11.0"
   }
 }