feat(format & linting): remove eslint, add biome

Keep prettier for the time being.

.husky/pre-commit

@@ -1,4 +1,2 @@
 #!/bin/sh
-. "$(dirname "$0")/_/husky.sh"
-
-pnpm exec lint-staged
+lint-staged

.prettierrc.mjs

@@ -0,0 +1,13 @@
+/** @type {import("prettier").Config} */
+export default {
+  printWidth: 120,
+  plugins: ["prettier-plugin-astro", "prettier-plugin-tailwindcss"],
+  overrides: [
+    {
+      files: "*.astro",
+      options: {
+        parser: "astro",
+      },
+    },
+  ],
+};

.vscode/settings.json

@@ -1,5 +1,7 @@
 {
-  "editor.codeActionsOnSave": ["source.organizeImports", "source.fixAll"],
+  "editor.codeActionsOnSave": {
+    "source.organizeImports.biome": "explicit"
+  },
   "editor.formatOnSave": true,
   "files.associations": {
     "*.css": "tailwindcss"

biome.json

@@ -0,0 +1,32 @@
+{
+  "$schema": "./node_modules/@biomejs/biome/configuration_schema.json",
+  "vcs": { "enabled": false, "clientKind": "git", "useIgnoreFile": true },
+  "files": {
+    "ignoreUnknown": false,
+    "ignore": [".astro", ".husky", "node_modules", "public", "dist", "pnpm-lock.yaml"]
+  },
+  "formatter": {
+    "enabled": true,
+    "useEditorconfig": true,
+    "formatWithErrors": false,
+    "lineWidth": 120,
+    "attributePosition": "auto",
+    "bracketSpacing": true
+  },
+  "javascript": {
+    "formatter": {
+      "jsxQuoteStyle": "double",
+      "quoteProperties": "asNeeded",
+      "trailingCommas": "all",
+      "semicolons": "always",
+      "arrowParentheses": "always",
+      "bracketSpacing": true,
+      "bracketSameLine": false,
+      "quoteStyle": "double",
+      "attributePosition": "auto"
+    }
+  },
+  "organizeImports": { "enabled": true },
+  "linter": { "enabled": true, "rules": { "recommended": true } },
+  "overrides": [{ "include": ["*.astro"] }]
+}

package.json

@@ -6,18 +6,16 @@
   "version": "0.2.1",
   "author": "Felix Hoffmann <[email protected]>",
   "scripts": {
-    "prepare": "husky install",
+    "prepare": "husky",
     "dev": "astro dev",
     "build": "pnpm run mermaid && astro build",
     "check": "astro check && tsc --noEmit",
     "sync": "astro sync",
     "preview": "astro preview",
     "astro": "astro",
-    "mermaid": "find ./src/data/mermaid -name '*.mmd' -exec sh -c 'mmdc -i {} -o ./src/assets/mermaid/$(basename {} .mmd).svg' \\;",
-    "lint": "eslint ./src",
-    "lint:fix": "eslint ./src --fix",
-    "format": "prettier --write . --plugin=prettier-plugin-astro",
-    "format:check": "prettier --check . --plugin=prettier-plugin-astro"
+    "lint": "biome lint",
+    "lint:fix": "biome lint --fix",
+    "format": "biome format --fix"
   },
   "dependencies": {
     "@astrojs/check": "^0.3.4",
@@ -40,43 +38,22 @@
     "tailwindcss-animate": "^1.0.7"
   },
   "devDependencies": {
-    "@eslint/eslintrc": "^3.1.0",
-    "@eslint/js": "^9.9.0",
+    "@biomejs/biome": "1.9.3",
     "@mermaid-js/mermaid-cli": "^10.9.1",
     "@tailwindcss/typography": "^0.5.14",
     "@types/react": "^18.3.4",
     "@types/react-dom": "^18.3.0",
-    "@typescript-eslint/eslint-plugin": "^6.21.0",
-    "@typescript-eslint/parser": "^6.21.0",
-    "astro-eslint-parser": "^0.16.3",
-    "eslint": "^8.57.0",
-    "eslint-config-prettier": "^9.1.0",
-    "eslint-import-resolver-typescript": "^3.6.1",
-    "eslint-plugin-astro": "^0.29.1",
-    "eslint-plugin-import": "^2.29.1",
-    "eslint-plugin-jsx-a11y": "^6.9.0",
-    "eslint-plugin-prettier": "^5.2.1",
-    "eslint-plugin-react": "^7.35.0",
-    "eslint-plugin-react-hooks": "^4.6.2",
-    "eslint-plugin-tailwindcss": "^3.17.4",
     "globals": "^15.9.0",
-    "husky": "^8.0.3",
-    "lint-staged": "^15.2.9",
+    "husky": "^9.1.6",
+    "lint-staged": "^15.2.10",
     "prettier": "^3.3.3",
-    "prettier-plugin-astro": "^0.12.3",
-    "prettier-plugin-tailwindcss": "^0.5.14",
+    "prettier-plugin-astro": "^0.14.1",
+    "prettier-plugin-tailwindcss": "^0.6.8",
     "typescript": "^5.5.4"
   },
-  "prettier": {
-    "tabWidth": 2,
-    "useTabs": false,
-    "semi": true,
-    "singleQuote": false,
-    "printWidth": 120
-  },
   "lint-staged": {
-    "*.{astro,md,mdx,js,jsx,ts,tsx}": [
-      "prettier --write ."
+    "*": [
+      "biome check --no-errors-on-unmatched"
     ]
   }
 }