Merge pull request #1137 from wantedly/chloe463/build/eslint-v9

feat: Support ESLint v9

.changeset/five-masks-flash.md

@@ -0,0 +1,9 @@
+---
+"eslint-config-wantedly-typescript": major
+"eslint-plugin-use-macros": major
+"eslint-config-wantedly": major
+"eslint-plugin-wantedly": major
+"frolint": major
+---
+
+Support ESLint v9

.github/workflows/nodejs.yml

@@ -8,7 +8,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [16.x, 18.x, 20.x]
+        node-version: [18.x, 20.x]
 
     steps:
       - uses: actions/[email protected]

eslint.config.mjs

@@ -0,0 +1,35 @@
+import { base as eslintConfigWantedly } from "eslint-config-wantedly";
+import { base as eslintConfigWantedlyTs } from "eslint-config-wantedly-typescript";
+
+/** @type{import('eslint').Linter.Config[]} */
+export default [
+  ...eslintConfigWantedly,
+  ...eslintConfigWantedlyTs,
+  {
+    ignores: ["packages/**/lib/*.js"],
+  },
+  {
+    files: ["**/*.ts", "**/*.tsx"],
+    rules: {
+      "no-console": "off",
+      "@typescript-eslint/no-require-imports": "off",
+      "@typescript-eslint/consistent-type-imports": [
+        "error",
+        {
+          prefer: "type-imports",
+          disallowTypeAnnotations: true,
+        },
+      ],
+      "import/order": [
+        "error",
+        {
+          "newlines-between": "always",
+          groups: ["builtin", "external", "parent", "sibling", "index"],
+          alphabetize: {
+            order: "asc",
+          },
+        },
+      ],
+    },
+  },
+];

package.json

@@ -6,8 +6,7 @@
   "devDependencies": {
     "@changesets/changelog-github": "^0.5.0",
     "@changesets/cli": "^2.27.1",
-    "@types/eslint": "^8.44.8",
-    "@types/estree": "^1.0.5",
+    "@types/estree": "^1.0.6",
     "@types/graphql": "^14.5.0",
     "@types/jest": "^27.4.0",
     "jest": "^29.7.0",

packages/eslint-config-wantedly-typescript/README.md

@@ -2,6 +2,42 @@
 
 ESLint config for Wantedly. It focuses the TypeScript linting.
 
+## Version Compatibilities
+
+If you're using ESLint v8 and under, please use eslint-config-wantedly-typescript version 3.x. As of eslint-config-wantedly-typescript version 4.0, it has started exporting ESLint's flat config format.
+
+### Usage (version 4.0 and above)
+
+It exports configurations as "Flat config".
+
+```js
+import { base as configWantedlyTS } from "eslint-config-wantedly-typescript";
+
+export default [
+  ...configWantedlyTS,
+  {
+    rules: {
+      // Your rules go here.
+    }
+  }
+];
+```
+
+### Usage (version 3.x and under)
+
+It exports configurations as "Legacy" format.
+
+```json
+{
+  "extends": ["wantedly-typescript"],
+  "rules": {
+    // Your rules go here.
+  }
+}
+```
+
+## Configuration details
+
 ### Parser
 
 Using `@typescript-eslint/parser`