AndreaPontrandolfo · AndreaPontrandolfo · Aug 12, 2024
diff --git a/apps/docs-website/docs/configuration.mdx b/apps/docs-website/docs/configuration.mdx
@@ -348,72 +348,10 @@ As outlined in the [criteria](./core-philosophy/criteria.md) page, Sheriff comes
 
 ```ts
 pathsOverrides: {
-  tsconfigLocation: string | string[];
   tests: string[];
 }
 ```
 
-#### `pathsOverrides.tsconfigLocation`
-
-By default, Sheriff will use the `project: true` option to locate the `tsconfig.json` of your project.
-
-But, if you have multiple `tsconfig.json` files in your project (like `tsconfig.json`, `tsconfig.eslint.json`, `tsconfig.node.json`, etc...), you can use this parameter to specify which config Sheriff will pickup.
-
-You can pass it a path as a string (or a list of paths as a array of strings, see: [one-tsconfigjson-per-package](https://typescript-eslint.io/linting/typed-linting/monorepos/#one-tsconfigjson-per-package-and-an-optional-one-in-the-root)).
-
-Example:
-
-<Tabs groupId="esmorcjs">
-  <TabItem value="ESM" label="ESM">
-
-```js title="eslint.config.js"
-import sheriff from "eslint-config-sheriff";
-import { defineFlatConfig } from "eslint-define-config";
-
-const sheriffOptions = {
-  react: false,
-  next: false,
-  astro: false,
-  lodash: false,
-  playwright: false,
-  jest: false,
-  vitest: false,
-  pathsOverrides: {
-    // highlight-next-line
-    tsconfigLocation: "./tsconfig.eslint.json",
-  },
-};
-
-export default defineFlatConfig([...sheriff(sheriffOptions)]);
-```
-
-</TabItem>
-<TabItem value="CommonJS" label="CommonJS">
-
-```js title="eslint.config.js"
-const { sheriff } = require("eslint-config-sheriff");
-const { defineFlatConfig } = require("eslint-define-config");
-
-const sheriffOptions = {
-  react: false,
-  next: false,
-  astro: false,
-  lodash: false,
-  playwright: false,
-  jest: false,
-  vitest: false,
-  pathsOverrides: {
-    // highlight-next-line
-    tsconfigLocation: "./tsconfig.eslint.json",
-  },
-};
-
-module.exports = defineFlatConfig([...sheriff(sheriffOptions)]);
-```
-
-  </TabItem>
-</Tabs>
-
 #### `pathsOverrides.tests`
 
 By default, Sheriff will apply Jest or Vitest rules only on specific files.

diff --git a/packages/eslint-config-sheriff/src/getAstroConfig.ts b/packages/eslint-config-sheriff/src/getAstroConfig.ts
@@ -1,8 +1,9 @@
 import astro from 'eslint-plugin-astro';
+import { getLegacyCompatDirname } from './utils/getLegacyCompatDirname';
 
 export const getAstroConfig = (
   hasReact: boolean,
-  customTSConfigPath: string | string[] | undefined,
+  disableProjectService: boolean,
 ) => {
   return [
     ...astro.configs.recommended,
@@ -11,7 +12,10 @@ export const getAstroConfig = (
       files: ['**/*.astro'],
       languageOptions: {
         parserOptions: {
-          project: customTSConfigPath || true,
+          ...(disableProjectService ? {} : { projectService: true }),
+          tsconfigRootDir: disableProjectService
+            ? undefined
+            : getLegacyCompatDirname(),
         },
       },
       settings: {

diff --git a/packages/eslint-config-sheriff/src/getBaseConfig.ts b/packages/eslint-config-sheriff/src/getBaseConfig.ts
@@ -28,8 +28,6 @@ import globals from 'globals';
 export const getBaseConfig = (
   userConfigChoices: SheriffSettings,
 ): TSESLint.FlatConfig.ConfigArray => {
-  const customTSConfigPath = userConfigChoices.pathsOverrides?.tsconfigLocation;
-
   return tseslint.config(
     {
       files: [supportedFileTypes],
@@ -46,7 +44,9 @@ export const getBaseConfig = (
     },
     {
       files: [`**/*{${allJsExtensions}}`],
-      languageOptions: getLanguageOptionsTypescript(customTSConfigPath),
+      languageOptions: getLanguageOptionsTypescript(
+        userConfigChoices.disableProjectService ?? false,
+      ),
     },
     {
       files: [supportedFileTypes],

diff --git a/packages/eslint-config-sheriff/src/getExportableConfig.ts b/packages/eslint-config-sheriff/src/getExportableConfig.ts
@@ -24,7 +24,7 @@ export const getExportableConfig = (
   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.
     exportableConfig.push(
-      ...getReactConfig(userConfigChoices.pathsOverrides?.tsconfigLocation),
+      ...getReactConfig(userConfigChoices.disableProjectService ?? false),
     );
   }
 
@@ -60,11 +60,14 @@ export const getExportableConfig = (
   }
 
   if (userConfigChoices.astro) {
-    const customTSConfigPath =
-      userConfigChoices.pathsOverrides?.tsconfigLocation;
     const hasReact = Boolean(userConfigChoices.react);
 
-    exportableConfig.push(...getAstroConfig(hasReact, customTSConfigPath));
+    exportableConfig.push(
+      ...getAstroConfig(
+        hasReact,
+        userConfigChoices.disableProjectService ?? false,
+      ),
+    );
   }
 
   if (userConfigChoices.playwright) {

diff --git a/packages/eslint-config-sheriff/src/getReactConfig.ts b/packages/eslint-config-sheriff/src/getReactConfig.ts
@@ -16,13 +16,13 @@ import { getLanguageOptionsTypescriptReact } from './utils/getLanguageOptionsTyp
 import { type TSESLint } from '@typescript-eslint/utils';
 
 export const getReactConfig = (
-  customTSConfigPath?: string | string[],
+  disableProjectService: boolean,
 ): TSESLint.FlatConfig.ConfigArray => {
   return tseslint.config(
     {
       // we are specifically not including .astro files here, to not overwrite astro-eslint-parser.
       files: [`**/*{${allJsExtensions},${allJsxExtensions}}`],
-      languageOptions: getLanguageOptionsTypescriptReact(customTSConfigPath),
+      languageOptions: getLanguageOptionsTypescriptReact(disableProjectService),
     },
     {
       files: [supportedFileTypes],

diff --git a/packages/eslint-config-sheriff/src/utils/getLanguageOptionsTypescript.ts b/packages/eslint-config-sheriff/src/utils/getLanguageOptionsTypescript.ts
@@ -1,13 +1,15 @@
-import tseslint from 'typescript-eslint';
+import { getLegacyCompatDirname } from './getLegacyCompatDirname';
 
 export const getLanguageOptionsTypescript = (
-  userChosenTSConfig?: string | string[],
+  disableProjectService: boolean,
 ) => {
   return {
-    parser: tseslint.parser,
     parserOptions: {
       ecmaFeatures: { modules: true },
-      project: userChosenTSConfig || true,
+      ...(disableProjectService ? {} : { projectService: true }),
+      tsconfigRootDir: disableProjectService
+        ? undefined
+        : getLegacyCompatDirname(),
     },
   };
 };
diff --git a/packages/eslint-config-sheriff/src/utils/getLanguageOptionsTypescriptReact.ts b/packages/eslint-config-sheriff/src/utils/getLanguageOptionsTypescriptReact.ts
@@ -1,14 +1,16 @@
 import globals from 'globals';
-import tseslint from 'typescript-eslint';
+import { getLegacyCompatDirname } from './getLegacyCompatDirname';
 
 export const getLanguageOptionsTypescriptReact = (
-  userChosenTSConfig?: string | string[],
+  disableProjectService: boolean,
 ) => {
   return {
-    parser: tseslint.parser,
     parserOptions: {
       ecmaFeatures: { modules: true, jsx: true },
-      project: userChosenTSConfig || true,
+      ...(disableProjectService ? {} : { projectService: true }),
+      tsconfigRootDir: disableProjectService
+        ? undefined
+        : getLegacyCompatDirname(),
       jsxPragma: null, // useful for typescript x react@17 https://github.com/jsx-eslint/eslint-plugin-react/blob/8cf47a8ac2242ee00ea36eac4b6ae51956ba4411/index.js#L165-L179
     },
     globals: {

diff --git a/packages/eslint-config-sheriff/src/utils/getLegacyCompatDirname.ts b/packages/eslint-config-sheriff/src/utils/getLegacyCompatDirname.ts
@@ -0,0 +1,8 @@
+import { dirname } from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+export const getLegacyCompatDirname = () => {
+  const isESM = typeof import.meta !== 'undefined';
+  return isESM ? dirname(fileURLToPath(import.meta.url)) : __dirname;
+  // return url.fileURLToPath(new URL('.', isESM ? import.meta.url : __filename)); // alternative code
+};
diff --git a/packages/sheriff-types/src/index.ts b/packages/sheriff-types/src/index.ts
@@ -89,10 +89,6 @@ export interface SheriffSettings extends Partial<SheriffConfigurablePlugins> {
    * This parameter allows you to override the paths for some Sheriff settings.
    */
   pathsOverrides?: {
-    /**
-     * With this setting, if you have multiple tsconfig.json files in your project (like tsconfig.json, tsconfig.eslint.json, tsconfig.node.json, etc...) you can specify which config Sheriff will pickup. You can also specify a list of paths, see: https://typescript-eslint.io/linting/typed-linting/monorepos/#one-tsconfigjson-per-package-and-an-optional-one-in-the-root.
-     */
-    tsconfigLocation?: string | string[];
     /**
      * This setting overrides the default Sheriff filepaths for test files. It accepts an array of filepaths, dictaced by minimatch syntax. Sheriff will apply Jest or Vitest rules only on these files.
      */
@@ -115,6 +111,15 @@ export interface SheriffSettings extends Partial<SheriffConfigurablePlugins> {
    * This setting accepts an array of filepaths, dictaced by minimatch syntax. Only the matching files found in this array will be linted. All other files will be ignored. This is useful if you want to lint only a subset of your project.
    */
   files?: string[];
+  /**
+   * `projectService` is enabled by default. If for whatever reason `projectService` is causing you issues, you can disable it.
+   * For example, if you want to just use the legacy `project` option.
+   * See https://typescript-eslint.io/packages/parser/#projectservice.
+   *
+   * WARNING: disabling `projectService` is extremely discouraged, as the entire linting will probably break.
+   * At the very least, you should enable the `project` option as an alternative.
+   */
+  disableProjectService?: boolean;
 }
 
 export interface ServerResponse {