chore: migrate from ESLint to Biome for linting and formatting

Author: jremy42

biome.json

@@ -1,42 +1,13 @@
 {
   "$schema": "./node_modules/@biomejs/biome/configuration_schema.json",
   "vcs": {
+    "enabled": true,
     "clientKind": "git",
-    "useIgnoreFile": false,
+    "useIgnoreFile": true,
     "defaultBranch": "main"
   },
   "files": {
-    "maxSize": 10000000,
-    "ignoreUnknown": true,
-    "includes": [
-      "**/*.ts",
-      "**/*.tsx",
-      "**/*.js",
-      "**/*.jsx",
-      "**/*.json"
-    ],
-    "experimentalScannerIgnores": [
-      ".next/",
-      ".pnpm-store/",
-      "coverage/",
-      "/public/outdated",
-      "/public/.well-known",
-      "**/node_modules/",
-      "**/storybook-static",
-      ".turbo/**",
-      "dist",
-      "build",
-      "out",
-      "node_modules/**",
-      "**/pnpm-lock.yaml",
-      "**/package.json",
-      "**/CHANGELOG.md",
-      "*.snap",
-      "**/__snapshots__/",
-      ".docusaurus",
-      ".vitest-reports",
-      "**/*.gen.ts"
-    ]
+    "ignoreUnknown": true
   },
   "formatter": {
     "enabled": true,
@@ -72,12 +43,59 @@
     }
   },
   "linter": {
-    "enabled": false
+    "enabled": true,
+    "rules": {
+      "recommended": true,
+      "style": {
+        "noDefaultExport": "error"
+      }
+    }
   },
+  "overrides": [
+    {
+      "includes": ["packages_generated/**", "**/dist/**", "coverage/**", "**/examples/**", "**/*.gen.ts"],
+      "linter": {
+        "enabled": false
+      }
+    },
+    {
+      "includes": ["vite.config.ts", "vitest.config.ts", "**/*.config.ts", "**/*.config.js"],
+      "linter": {
+        "rules": {
+          "style": {
+            "noDefaultExport": "off"
+          }
+        }
+      }
+    },
+    {
+      "includes": ["**/*.test.ts", "**/__tests__/**/*.ts"],
+      "linter": {
+        "rules": {
+          "correctness": {
+            "noUnusedVariables": "off"
+          },
+          "style": {
+            "useNamingConvention": "off"
+          }
+        }
+      }
+    },
+    {
+      "includes": ["packages/client/src/internal/interceptors/types.ts", "packages/client/src/scw/auth.ts", "packages/client/src/scw/fetch/http-interceptors.ts"],
+      "linter": {
+        "rules": {
+          "style": {
+            "useShorthandFunctionType": "off"
+          }
+        }
+      }
+    }
+  ],
   "assist": {
     "actions": {
       "source": {
-        "organizeImports": "off"
+        "organizeImports": "on"
       }
     }
   }

eslint.config.generated.mjs

@@ -23,29 +23,29 @@
     "build:profile": "cross-env PROFILE=true pnpm run build",
     "commit": "npx git-cz -a",
     "doc": "typedoc",
-    "format": "biome check  --linter-enabled=false --write .",
-    "format:check": "biome check --linter-enabled=false --verbose .",
+    "format": "biome format --write .",
+    "format:check": "biome format .",
     "prettier": "prettier --write '**/*.{md,mdx,yml,yaml}'",
-    "lint": "eslint --cache .",
+    "lint": "biome lint .",
+    "check": "biome check .",
     "prepare": "husky",
     "test": "vitest run",
     "test:coverage": "vitest run --coverage",
     "test:junit": "vitest --reporter=junit --outputFile=test-report.junit.xml",
     "test:ui": "vitest --ui"
   },
   "lint-staged": {
-    "*.ts": [
-      "pnpm run format",
-      "eslint --fix --quiet ."
+    "packages/*/src/**/*.{ts,tsx,js,jsx}": [
+      "biome check --write --no-errors-on-unmatched --files-ignore-unknown=true"
     ],
-    "*.json": [
-      "pnpm run format"
+    "scripts/**/*.ts": [
+      "biome check --write --no-errors-on-unmatched --files-ignore-unknown=true"
     ],
     "*.y?(a)ml": [
-      "prettier --write '**/*.{yml,yaml}'"
+      "prettier --write"
     ],
-    ".md?(x)": [
-      "prettier --write '**/*.{md,mdx}'"
+    "*.md?(x)": [
+      "prettier --write"
     ]
   },
   "config": {
@@ -63,9 +63,6 @@
     "@commitlint/cli": "19.8.1",
     "@commitlint/config-conventional": "19.8.1",
     "@manypkg/cli": "0.24.0",
-    "@scaleway/eslint-config-react": "4.0.9",
-    "@typescript-eslint/eslint-plugin": "8.40.0",
-    "@typescript-eslint/parser": "8.40.0",
     "@vitest/coverage-istanbul": "3.1.2",
     "@vitest/coverage-v8": "3.1.2",
     "@vitest/ui": "3.1.2",
@@ -75,8 +72,6 @@
     "cross-fetch": "4.1.0",
     "cz-conventional-changelog": "3.3.0",
     "esbuild-plugin-browserslist": "1.0.1",
-    "eslint": "9.33.0",
-    "eslint-plugin-tsdoc": "0.4.0",
     "husky": "9.1.7",
     "jsdom": "26.1.0",
     "lerna": "8.2.3",
@@ -89,9 +84,7 @@
     "typedoc": "0.27.6",
     "typescript": "5.8.3",
     "vite": "6.4.1",
-    "vitest": "3.1.2",
-    "eslint-plugin-unused-imports": "^4.2.0",
-    "eslint-plugin-import": "^2.32.0"
+    "vitest": "3.1.2"
   },
   "packageManager": "[email protected]"
 }