feat(tooling): Replace ESLint with Biome

Author: octet-stream

.eslintrc.json

@@ -1,27 +1,27 @@
-name: ESLint
+name: Lint
 
 on:
   push:
     branches: [main]
     paths:
       - "**.ts"
+      - "**.js"
       - "package.json"
       - "pnpm-lock.yaml"
-      - ".eslintrc.json"
-      - ".eslintignore"
-      - ".github/workflows/eslint.yml"
+      - "biome.jsonc"
+      - ".github/workflows/lint.yml"
   pull_request:
     branches: [main]
     paths:
       - "**.ts"
+      - "**.js"
       - "package.json"
       - "pnpm-lock.yaml"
-      - ".eslintrc.json"
-      - ".eslintignore"
-      - ".github/workflows/eslint.yml"
+      - "biome.jsonc"
+      - ".github/workflows/lint.yml"
 
 jobs:
-  eslint:
+  lint:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -54,4 +54,4 @@ jobs:
       - name: Install dependencies
         run: pnpm i --frozen-lockfile
 
-      - run: pnpm run eslint
+      - run: pnpm run lint

.github/workflows/eslint.yml renamed to .github/workflows/lint.yml

@@ -0,0 +1,6 @@
+{
+  "*.{ts,js,json,jsonc}": [
+    "pnpm biome format --write --no-errors-on-unmatched",
+    "pnpm biome lint --write --no-errors-on-unmatched"
+  ]
+}

.lintstagedrc

@@ -0,0 +1,19 @@
+{
+  "editor.defaultFormatter": "biomejs.biome",
+  "editor.formatOnSave": true,
+  "editor.codeActionsOnSave": {
+    "quickfix.biome": "explicit"
+  },
+  "[typescript]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+  "[javascript]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+  "[jsonc]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+  "[json]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+}

.lintstagedrc.json

@@ -6,7 +6,5 @@ export default {
   extensions: {
     ts: "module"
   },
-  files: [
-    "src/**/*.test.ts"
-  ]
+  files: ["src/**/*.test.ts"]
 }

.vscode/settings.json

@@ -0,0 +1,37 @@
+{
+  "$schema": "https://biomejs.dev/schemas/1.8.3/schema.json",
+  "linter": {
+    "rules": {
+      "recommended": true,
+      "complexity": {
+        "noForEach": "off"
+      },
+      "style": {
+        "noParameterAssign": "off"
+      },
+      "suspicious": {
+        "noGlobalIsNan": "off"
+      }
+    }
+  },
+  "formatter": {
+    "indentStyle": "space"
+  },
+  "javascript": {
+    "formatter": {
+      "semicolons": "asNeeded",
+      "bracketSpacing": false,
+      "trailingCommas": "none",
+      "arrowParentheses": "asNeeded"
+    }
+  },
+  "json": {
+    "formatter": {
+      "trailingCommas": "none"
+    }
+  },
+  "files": {
+    "include": ["**/*.ts", "**/*.js"],
+    "ignore": ["node_modules", "lib"]
+  }
+}

ava.config.js

@@ -37,9 +37,8 @@
   },
   "types": "./lib/index.d.ts",
   "scripts": {
-    "eslint": "eslint src/**/*.ts",
     "lint:types": "tsc --project tsconfig.json --noEmit",
-    "lint": "pnpm eslint && pnpm lint:types",
+    "lint": "pnpm biome && pnpm lint:types",
     "staged": "lint-staged",
     "coverage": "c8 pnpm test",
     "ci": "c8 pnpm test && c8 report --reporter=json",
@@ -49,17 +48,16 @@
     "prepare": "npx is-in-ci || husky install"
   },
   "devDependencies": {
+    "@biomejs/biome": "1.8.3",
     "@changesets/changelog-github": "0.5.0",
     "@changesets/cli": "2.27.6",
-    "@octetstream/eslint-config": "8.2.5",
     "@types/mime-types": "2.1.4",
     "@types/node": "20.14.2",
     "@types/sinon": "17.0.3",
     "ava": "6.1.3",
     "c8": "10.1.2",
     "cross-env": "7.0.3",
     "del-cli": "5.1.0",
-    "eslint": "9.6.0",
     "formdata-node": "6.0.3",
     "husky": "9.0.11",
     "lint-staged": "15.2.7",