AndreaPontrandolfo/issue236

.changeset/angry-jobs-flash.md

@@ -0,0 +1,7 @@
+---
+'eslint-config-sheriff': patch
+'@sherifforg/create-config': patch
+---
+
+feat(internal): linting core package with itself
+Fixes #236

.vscode/settings.json

@@ -1,9 +1,9 @@
 {
   "eslint.workingDirectories": [
     "./packages/sheriff-create-config",
+    "./packages/eslint-config-sheriff",
     "./packages/sheriff-cli",
     "./packages/sheriff-utils",
-    "./packages/sheriff-types",
     "./apps/docs-website",
     "./apps/sheriff-webservices",
     "./apps/config-validation-playground"
@@ -17,6 +17,9 @@
     "markdown",
     "astro"
   ],
+  "eslint.options": {
+    "flags": ["unstable_ts_config"]
+  },
   "editor.codeActionsOnSave": {
     "source.fixAll.eslint": "explicit",
     "source.organizeImports": "never"

apps/config-validation-playground/package.json

@@ -21,7 +21,7 @@
     "@types/node": "^22.9.0",
     "@types/react": "^18.3.3",
     "@types/react-dom": "^18.2.15",
-    "eslint": "^9.14.0",
+    "eslint": "^9.17.0",
     "eslint-config-sheriff": "workspace:*",
     "eslint-define-config": "^2.1.0",
     "tsconfig": "workspace:*",

apps/docs-website/docs/requirements/hard-requirements.md

@@ -5,6 +5,6 @@ description: The bare minimum
 
 # Hard requirements
 
-- [Node >=18.18](https://nodejs.org/en/)
+- [Node >=20.10](https://nodejs.org/en/)
 - [ESLint >=9.0.0](https://eslint.org/)
 - [Typescript >= 5.0.0](https://www.typescriptlang.org/)

apps/docs-website/docs/requirements/recommendations.md

@@ -5,7 +5,7 @@ description: You probably need this too
 
 # Recommendations
 
-- [Node >=20](https://nodejs.org/en/)
+- [Node >=22](https://nodejs.org/en/)
 - [VScode](https://code.visualstudio.com/)
 - [VScode eslint extension](https://marketplace.visualstudio.com/items?itemName=dbaeumer.vscode-eslint)
 - [VScode prettier extension](https://marketplace.visualstudio.com/items?itemName=esbenp.prettier-vscode)

apps/docs-website/package.json

@@ -12,7 +12,7 @@
     "write-translations": "docusaurus write-translations",
     "write-heading-ids": "docusaurus write-heading-ids",
     "typecheck": "tsc --noEmit",
-    "lint": "eslint . --max-warnings=0",
+    "lint": "eslint --max-warnings=0",
     "typesync": "typesync --dry=fail",
     "clean": "pnpm clear && rm -rf .turbo dist node_modules/.cache"
   },
@@ -45,7 +45,7 @@
     "@types/node": "^22.9.0",
     "@types/react": "^18.3.3",
     "@types/react-dom": "^18.2.15",
-    "eslint": "^9.14.0",
+    "eslint": "^9.17.0",
     "eslint-config-sheriff": "workspace:*",
     "eslint-define-config": "^2.1.0",
     "eslint-plugin-mdx": "^3.1.5",

apps/docs-website/src/components/RulesTable.tsx

@@ -40,8 +40,11 @@ const columns = [
   }),
   columnHelper.accessor('ruleOptions', {
     header: 'Options',
-    cell: (info) =>
-      isEmpty(info.getValue()) ? 'No options' : JSON.stringify(info.getValue()),
+    cell: (info) => {
+      return isEmpty(info.getValue())
+        ? 'No options'
+        : JSON.stringify(info.getValue());
+    },
   }),
   columnHelper.accessor('docs', {
     header: 'Docs',

apps/sheriff-webservices/package.json

@@ -7,7 +7,7 @@
     "start": "tsx watch ./src/index.ts",
     "build": "tsc",
     "typecheck": "tsc --noEmit",
-    "lint": "eslint . --max-warnings=0",
+    "lint": "eslint --max-warnings=0",
     "typesync": "typesync --dry=fail",
     "serve": "node ./dist/index.js",
     "clean": "rm -rf .turbo dist node_modules/.cache"
@@ -25,13 +25,13 @@
   },
   "dependencies": {
     "@eslint-react/eslint-plugin": "^1.10.1",
-    "@eslint/js": "^9.14.0",
+    "@eslint/js": "^9.17.0",
     "@hono/node-server": "^1.12.0",
     "@next/eslint-plugin-next": "^13.2.3",
     "@regru/eslint-plugin-prefer-early-return": "^1.0.0",
     "@stylistic/eslint-plugin": "^2.6.4",
     "@vitest/eslint-plugin": "^1.0.3",
-    "eslint": "^9.14.0",
+    "eslint": "^9.17.0",
     "eslint-config-sheriff": "workspace:*",
     "eslint-plugin-arrow-return-style": "^1.3.0",
     "eslint-plugin-astro": "^1.2.3",

apps/sheriff-webservices/src/getAllRules.ts

@@ -1,3 +1,4 @@
+/* eslint-disable @typescript-eslint/no-unsafe-argument */
 import type { ESLint } from 'eslint';
 import arrowReturnStyle from 'eslint-plugin-arrow-return-style';
 import astro from 'eslint-plugin-astro';
@@ -43,9 +44,11 @@ export const getAllRules = (
   ) => Record<string, RuleOptions>,
 ): BarebonesConfigAtom['rules'] => {
   const reactRulesCatalog = {
+    // @ts-expect-error
     ...prependRulesWithPluginName(react.rules, 'react'),
     ...prependRulesWithPluginName(reactAccessibility.rules, 'jsx-a11y'),
     ...prependRulesWithPluginName(reactHooks.rules, 'react-hooks'),
+    // @ts-expect-error
     ...prependRulesWithPluginName(reactRefresh.rules, 'react-refresh'),
     ...prependRulesWithPluginName(
       (rel1cxReact as unknown as Plugin).rules,
@@ -86,7 +89,8 @@ export const getAllRules = (
       ? prependRulesWithPluginName(nextjs.rules, '@next/next')
       : {}),
     ...(settings.playwright
-      ? prependRulesWithPluginName(playwright.rules, 'playwright')
+      ? // @ts-expect-error
+        prependRulesWithPluginName(playwright.rules, 'playwright')
       : {}),
     ...(settings.lodash
       ? prependRulesWithPluginName(lodashPlugin.rules, 'lodash-f')

package.json

@@ -38,7 +38,7 @@
     "turbo": "^2.2.3",
     "typesync": "0.13.0"
   },
-  "packageManager": "pnpm@9.10.0",
+  "packageManager": "pnpm@9.15.1",
   "engines": {
     "node": ">=20.10.0"
   },

packages/eslint-config-sheriff/eslint.config.js

@@ -0,0 +1,30 @@
+import { sheriff } from 'eslint-config-sheriff';
+import { defineFlatConfig } from 'eslint-define-config';
+
+const sheriffOptions = {
+  react: false,
+  next: false,
+  lodash: true,
+  remeda: false,
+  astro: false,
+  playwright: false,
+  jest: false,
+  vitest: false,
+};
+
+export default defineFlatConfig([
+  ...sheriff(sheriffOptions),
+  {
+    rules: {
+      'fsecond/prefer-destructured-optionals': 0,
+      '@typescript-eslint/no-unsafe-return': 0,
+      '@typescript-eslint/no-unsafe-member-access': 0,
+      '@typescript-eslint/no-unsafe-argument': 0,
+      'sonarjs/no-duplicate-string': 0,
+      'lodash-f/import-scope': 0,
+    },
+  },
+  {
+    ignores: ['tsup.config.js'],
+  },
+]);

packages/eslint-config-sheriff/package.json

@@ -50,13 +50,14 @@
     "build": "tsup && pnpm re-bundle-types",
     "build-watch": "tsup && pnpm re-bundle-types",
     "typecheck": "tsc --noEmit",
+    "lint": "eslint src --max-warnings=0",
     "publint": "publint",
     "typesync": "typesync --dry=fail"
   },
   "dependencies": {
     "@eslint-react/eslint-plugin": "^1.10.1",
-    "@eslint/compat": "^1.1.1",
-    "@eslint/js": "^9.14.0",
+    "@eslint/compat": "^1.2.4",
+    "@eslint/js": "^9.17.0",
     "@next/eslint-plugin-next": "^13.2.3",
     "@regru/eslint-plugin-prefer-early-return": "^1.0.0",
     "@stylistic/eslint-plugin": "^2.6.4",
@@ -104,7 +105,7 @@
     "@types/node": "^22.9.0",
     "@typescript-eslint/utils": "^8.15.0",
     "dts-bundle-generator": "^9.5.1",
-    "eslint": "^9.14.0",
+    "eslint": "^9.17.0",
     "eslint-define-config": "^2.1.0",
     "lodash": "^4.17.21",
     "publint": "^0.2.10",

packages/eslint-config-sheriff/src/getAstroConfig.ts

@@ -1,9 +1,10 @@
 import astro from 'eslint-plugin-astro';
+import type { TSESLint } from '@typescript-eslint/utils';
 
 export const getAstroConfig = (
   hasReact: boolean,
   customTSConfigPath: string | string[] | undefined,
-) => {
+): TSESLint.FlatConfig.ConfigArray => {
   return [
     ...astro.configs.recommended,
     ...(hasReact ? astro.configs['jsx-a11y-strict'] : []),

packages/eslint-config-sheriff/src/getBaseConfig.ts

@@ -1,31 +1,31 @@
-import eslintJs from '@eslint/js';
-import type { TSESLint } from '@typescript-eslint/utils';
-import tseslint from 'typescript-eslint';
-import unicorn from 'eslint-plugin-unicorn';
-import sonarjs from 'eslint-plugin-sonarjs';
-import jsdoc from 'eslint-plugin-jsdoc';
+import arrowReturnStyle from 'eslint-plugin-arrow-return-style';
+import fsecond from 'eslint-plugin-fsecond';
 import pluginImport from 'eslint-plugin-import';
+import jsdoc from 'eslint-plugin-jsdoc';
+import * as regexpPlugin from 'eslint-plugin-regexp';
 import simpleImportSort from 'eslint-plugin-simple-import-sort';
-import preferEarlyReturn from '@regru/eslint-plugin-prefer-early-return';
-import tsdoc from 'eslint-plugin-tsdoc';
+import sonarjs from 'eslint-plugin-sonarjs';
 import storybook from 'eslint-plugin-storybook';
-import fsecond from 'eslint-plugin-fsecond';
-import arrowReturnStyle from 'eslint-plugin-arrow-return-style';
-import stylistic from '@stylistic/eslint-plugin';
-import * as regexpPlugin from 'eslint-plugin-regexp';
-import { supportedFileTypes, allJsExtensions } from '@sherifforg/constants';
+import tsdoc from 'eslint-plugin-tsdoc';
+import unicorn from 'eslint-plugin-unicorn';
+import globals from 'globals';
+import tseslint from 'typescript-eslint';
+import { fixupPluginRules } from '@eslint/compat';
+import eslintJs from '@eslint/js';
+import preferEarlyReturn from '@regru/eslint-plugin-prefer-early-return';
+import { allJsExtensions, supportedFileTypes } from '@sherifforg/constants';
 import type { SheriffSettings } from '@sherifforg/types';
-import { getTsNamingConventionRule } from './utils/getTsNamingConventionRule';
+import stylistic from '@stylistic/eslint-plugin';
+import type { TSESLint } from '@typescript-eslint/utils';
+import { getBaseEslintHandPickedRules } from './handpickedRules/getBaseEslintHandPickedRules';
 import { importHandPickedRules } from './handpickedRules/importHandPickedRules';
 import { jsdocHandPickedRules } from './handpickedRules/jsdocHandPickedRules';
 import { sonarjsHandPickedRules } from './handpickedRules/sonarjsHandPickedRules';
 import { stylisticHandPickedRules } from './handpickedRules/stylisticHandPickedRules';
 import { typescriptHandPickedRules } from './handpickedRules/typescriptHandPickedRules';
 import { unicornHandPickedRules } from './handpickedRules/unicornHandPickedRules';
-import { getBaseEslintHandPickedRules } from './handpickedRules/getBaseEslintHandPickedRules';
 import { getLanguageOptionsTypescript } from './utils/getLanguageOptionsTypescript';
-import globals from 'globals';
-import { fixupPluginRules } from '@eslint/compat';
+import { getTsNamingConventionRule } from './utils/getTsNamingConventionRule';
 
 export const getBaseConfig = (
   userConfigChoices: SheriffSettings,
@@ -39,7 +39,6 @@ export const getBaseConfig = (
     },
     {
       files: [supportedFileTypes],
-      // @ts-expect-error
       rules: getBaseEslintHandPickedRules(),
     },
     {
@@ -52,6 +51,7 @@ export const getBaseConfig = (
     },
     {
       files: [supportedFileTypes],
+      // @ts-expect-error
       rules: {
         ...typescriptHandPickedRules,
         ...getTsNamingConventionRule({ isTsx: false }),

packages/eslint-config-sheriff/src/getExportableConfig.ts

@@ -1,27 +1,27 @@
+/* eslint-disable @typescript-eslint/no-unnecessary-condition */
 import getGitignorePatterns from 'eslint-config-flat-gitignore';
-import lodash from 'lodash';
 import type { FlatESLintConfig } from 'eslint-define-config';
-import type { SheriffSettings } from '@sherifforg/types';
+import lodash from 'lodash';
 import { ignores, sheriffStartingOptions } from '@sherifforg/constants';
-import { getReactConfig } from './getReactConfig';
-import { getBaseConfig } from './getBaseConfig';
-import { nextjsConfig } from './nextjsConfig';
+import type { SheriffSettings } from '@sherifforg/types';
+import type { TSESLint } from '@typescript-eslint/utils';
 import { getAstroConfig } from './getAstroConfig';
-import { getPlaywrightConfig } from './playwrightConfig';
-import { lodashConfig } from './lodashConfig';
+import { getBaseConfig } from './getBaseConfig';
 import { getJestConfig } from './getJestConfig';
+import { getReactConfig } from './getReactConfig';
 import { getVitestConfig } from './getVitestConfig';
-import { type TSESLint } from '@typescript-eslint/utils';
+import { lodashConfig } from './lodashConfig';
+import { nextjsConfig } from './nextjsConfig';
+import { getPlaywrightConfig } from './playwrightConfig';
 import { remedaConfig } from './remedaConfig';
 
 export const getExportableConfig = (
   userConfigChoices: SheriffSettings = sheriffStartingOptions,
   /** @internal */
   areAllRulesForced?: boolean,
 ): FlatESLintConfig[] => {
-  let exportableConfig: TSESLint.FlatConfig.ConfigArray = [
-    ...getBaseConfig(userConfigChoices),
-  ];
+  let exportableConfig: TSESLint.FlatConfig.ConfigArray =
+    getBaseConfig(userConfigChoices);
 
   if (userConfigChoices.react || userConfigChoices.next) {
     // we insert reactConfig this way because it's an array. It's an array because it contains multiple configs, currently: react, react-hooks, react-a11y and react-refresh.
@@ -48,7 +48,6 @@ export const getExportableConfig = (
 
   if (userConfigChoices.vitest) {
     exportableConfig.push(
-      //@ts-expect-error
       getVitestConfig(userConfigChoices.pathsOverrides?.tests),
     );
   }
@@ -75,7 +74,6 @@ export const getExportableConfig = (
 
   if (userConfigChoices.playwright) {
     exportableConfig.push(
-      //@ts-expect-error
       ...getPlaywrightConfig(userConfigChoices.pathsOverrides?.playwrightTests),
     );
   }
@@ -86,7 +84,7 @@ export const getExportableConfig = (
     );
 
     exportableConfig = exportableConfig.map((configSlice) => {
-      if (configSlice.ignores?.length && configSlice.ignores.length > 0) {
+      if (configSlice.ignores?.length && !lodash.isEmpty(configSlice.ignores)) {
         return configSlice;
       }
 

packages/eslint-config-sheriff/src/getJestConfig.ts

@@ -1,8 +1,8 @@
 import jest from 'eslint-plugin-jest';
 import tseslint from 'typescript-eslint';
 import { allJsExtensions } from '@sherifforg/constants';
+import type { TSESLint } from '@typescript-eslint/utils';
 import { jestHandPickedRules } from './handpickedRules/jestHandPickedRules';
-import { type TSESLint } from '@typescript-eslint/utils';
 
 export const getJestConfig = (
   pathsOverrides?: string[],
@@ -14,7 +14,6 @@ export const getJestConfig = (
       `**/__tests__/**/*.{${allJsExtensions}}`,
     ],
     extends: [jest.configs['flat/style']],
-    // @ts-expect-error
     rules: {
       ...jestHandPickedRules,
       '@typescript-eslint/unbound-method': 0, // see: https://github.com/jest-community/eslint-plugin-jest/blob/main/docs/rules/unbound-method.md