[heft-lint-plugin] Add support for ESLint 9

README.md

@@ -161,7 +161,9 @@ These GitHub repositories provide supplementary resources for Rush Stack:
 | [/build-tests/eslint-7-7-test](./build-tests/eslint-7-7-test/) | This project contains a build test to validate ESLint 7.7.0 compatibility with the latest version of @rushstack/eslint-config (and by extension, the ESLint plugin) |
 | [/build-tests/eslint-7-test](./build-tests/eslint-7-test/) | This project contains a build test to validate ESLint 7 compatibility with the latest version of @rushstack/eslint-config (and by extension, the ESLint plugin) |
 | [/build-tests/eslint-8-test](./build-tests/eslint-8-test/) | This project contains a build test to validate ESLint 8 compatibility with the latest version of @rushstack/eslint-config (and by extension, the ESLint plugin) |
+| [/build-tests/eslint-9-test](./build-tests/eslint-9-test/) | This project contains a build test to validate ESLint 9 compatibility with the latest version of @rushstack/eslint-config (and by extension, the ESLint plugin) |
 | [/build-tests/eslint-bulk-suppressions-test](./build-tests/eslint-bulk-suppressions-test/) | Sample code to test eslint bulk suppressions |
+| [/build-tests/eslint-bulk-suppressions-test-flat](./build-tests/eslint-bulk-suppressions-test-flat/) | Sample code to test eslint bulk suppressions with flat configs |
 | [/build-tests/eslint-bulk-suppressions-test-legacy](./build-tests/eslint-bulk-suppressions-test-legacy/) | Sample code to test eslint bulk suppressions for versions of eslint < 8.57.0 |
 | [/build-tests/hashed-folder-copy-plugin-webpack5-test](./build-tests/hashed-folder-copy-plugin-webpack5-test/) | Building this project exercises @rushstack/hashed-folder-copy-plugin with Webpack 5. NOTE - THIS TEST IS CURRENTLY EXPECTED TO BE BROKEN |
 | [/build-tests/heft-copy-files-test](./build-tests/heft-copy-files-test/) | Building this project tests copying files with Heft |

apps/api-documenter/eslint.config.js

@@ -0,0 +1,21 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
+// See LICENSE in the project root for license information.
+
+const nodeTrustedToolProfile = require('local-node-rig/profiles/default/includes/eslint/flat/profile/node-trusted-tool');
+const friendlyLocalsMixin = require('local-node-rig/profiles/default/includes/eslint/flat/mixins/friendly-locals');
+
+module.exports = [
+  ...nodeTrustedToolProfile,
+  ...friendlyLocalsMixin,
+  {
+    files: ['**/*.ts', '**/*.tsx'],
+    languageOptions: {
+      parserOptions: {
+        tsconfigRootDir: __dirname
+      }
+    },
+    rules: {
+      'no-console': 'off'
+    }
+  }
+];

apps/api-documenter/package.json

@@ -32,6 +32,7 @@
     "@rushstack/heft": "workspace:*",
     "@types/js-yaml": "3.12.1",
     "@types/resolve": "1.20.2",
+    "eslint": "~9.25.1",
     "local-node-rig": "workspace:*"
   }
 }

apps/cpu-profile-summarizer/eslint.config.js

@@ -0,0 +1,21 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
+// See LICENSE in the project root for license information.
+
+const nodeTrustedToolProfile = require('local-node-rig/profiles/default/includes/eslint/flat/profile/node-trusted-tool');
+const friendlyLocalsMixin = require('local-node-rig/profiles/default/includes/eslint/flat/mixins/friendly-locals');
+
+module.exports = [
+  ...nodeTrustedToolProfile,
+  ...friendlyLocalsMixin,
+  {
+    files: ['**/*.ts', '**/*.tsx'],
+    languageOptions: {
+      parserOptions: {
+        tsconfigRootDir: __dirname
+      }
+    },
+    rules: {
+      'no-console': 'off'
+    }
+  }
+];

apps/cpu-profile-summarizer/package.json

@@ -23,6 +23,7 @@
   },
   "devDependencies": {
     "@rushstack/heft": "workspace:*",
+    "eslint": "~9.25.1",
     "local-node-rig": "workspace:*"
   }
 }

apps/heft/.eslintrc.js

@@ -1,9 +1,12 @@
 // This is a workaround for https://github.com/eslint/eslint/issues/3458
-require('local-eslint-config/patch/modern-module-resolution');
+require('decoupled-local-node-rig/profiles/default/includes/eslint/patch/modern-module-resolution');
 // This is a workaround for https://github.com/microsoft/rushstack/issues/3021
-require('local-eslint-config/patch/custom-config-package-names');
+require('decoupled-local-node-rig/profiles/default/includes/eslint/patch/custom-config-package-names');
 
 module.exports = {
-  extends: ['local-eslint-config/profile/node-trusted-tool', 'local-eslint-config/mixins/friendly-locals'],
+  extends: [
+    'decoupled-local-node-rig/profiles/default/includes/eslint/profile/node-trusted-tool',
+    'decoupled-local-node-rig/profiles/default/includes/eslint/mixins/friendly-locals'
+  ],
   parserOptions: { tsconfigRootDir: __dirname }
 };

apps/heft/package.json

@@ -51,7 +51,6 @@
     "@microsoft/api-extractor": "workspace:*",
     "@rushstack/heft": "0.73.2",
     "@types/watchpack": "2.4.0",
-    "decoupled-local-node-rig": "workspace:*",
-    "local-eslint-config": "workspace:*"
+    "decoupled-local-node-rig": "workspace:*"
   }
 }

apps/lockfile-explorer-web/eslint.config.js

@@ -0,0 +1,18 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
+// See LICENSE in the project root for license information.
+
+const webAppProfile = require('local-web-rig/profiles/app/includes/eslint/flat/profile/web-app');
+const reactMixin = require('local-web-rig/profiles/app/includes/eslint/flat/mixins/react');
+
+module.exports = [
+  ...webAppProfile,
+  ...reactMixin,
+  {
+    files: ['**/*.ts', '**/*.tsx'],
+    languageOptions: {
+      parserOptions: {
+        tsconfigRootDir: __dirname
+      }
+    }
+  }
+];

apps/lockfile-explorer-web/package.json

@@ -22,8 +22,9 @@
   },
   "devDependencies": {
     "@rushstack/heft": "workspace:*",
-    "@types/react-dom": "17.0.25",
     "@types/react": "17.0.74",
+    "@types/react-dom": "17.0.25",
+    "eslint": "~9.25.1",
     "local-web-rig": "workspace:*"
   }
 }

apps/lockfile-explorer-web/src/start.tsx

@@ -1,7 +1,6 @@
 // Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
 // See LICENSE in the project root for license information.
 
-// eslint-disable-next-line @typescript-eslint/no-unused-vars
 import * as React from 'react';
 import * as ReactDOM from 'react-dom';
 import { App } from './App';

apps/lockfile-explorer/eslint.config.js

@@ -0,0 +1,19 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
+// See LICENSE in the project root for license information.
+
+const nodeProfile = require('local-node-rig/profiles/default/includes/eslint/flat/profile/node');
+
+module.exports = [
+  ...nodeProfile,
+  {
+    files: ['**/*.ts', '**/*.tsx'],
+    languageOptions: {
+      parserOptions: {
+        tsconfigRootDir: __dirname
+      }
+    },
+    rules: {
+      'no-console': 'off'
+    }
+  }
+];

apps/lockfile-explorer/package.json

@@ -53,6 +53,7 @@
     "@types/express": "4.17.21",
     "@types/js-yaml": "3.12.1",
     "@types/update-notifier": "~6.0.1",
+    "eslint": "~9.25.1",
     "local-node-rig": "workspace:*",
     "@pnpm/lockfile-types": "^5.1.5",
     "@types/semver": "7.5.0"

apps/rundown/eslint.config.js

@@ -0,0 +1,21 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
+// See LICENSE in the project root for license information.
+
+const nodeTrustedToolProfile = require('local-node-rig/profiles/default/includes/eslint/flat/profile/node-trusted-tool');
+const friendlyLocalsMixin = require('local-node-rig/profiles/default/includes/eslint/flat/mixins/friendly-locals');
+
+module.exports = [
+  ...nodeTrustedToolProfile,
+  ...friendlyLocalsMixin,
+  {
+    files: ['**/*.ts', '**/*.tsx'],
+    languageOptions: {
+      parserOptions: {
+        tsconfigRootDir: __dirname
+      }
+    },
+    rules: {
+      'no-console': 'off'
+    }
+  }
+];

apps/rundown/package.json

@@ -27,6 +27,7 @@
   },
   "devDependencies": {
     "@rushstack/heft": "workspace:*",
+    "eslint": "~9.25.1",
     "local-node-rig": "workspace:*"
   }
 }

apps/rush-mcp-server/eslint.config.js

@@ -0,0 +1,18 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
+// See LICENSE in the project root for license information.
+
+const nodeTrustedToolProfile = require('local-node-rig/profiles/default/includes/eslint/flat/profile/node-trusted-tool');
+const friendlyLocalsMixin = require('local-node-rig/profiles/default/includes/eslint/flat/mixins/friendly-locals');
+
+module.exports = [
+  ...nodeTrustedToolProfile,
+  ...friendlyLocalsMixin,
+  {
+    files: ['**/*.ts', '**/*.tsx'],
+    languageOptions: {
+      parserOptions: {
+        tsconfigRootDir: __dirname
+      }
+    }
+  }
+];

apps/rush-mcp-server/package.json

@@ -37,6 +37,7 @@
   },
   "devDependencies": {
     "@rushstack/heft": "workspace:*",
+    "eslint": "~9.25.1",
     "local-node-rig": "workspace:*",
     "typescript": "~5.8.2",
     "@types/node": "20.17.19"

apps/rush/eslint.config.js

@@ -0,0 +1,21 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
+// See LICENSE in the project root for license information.
+
+const nodeTrustedToolProfile = require('local-node-rig/profiles/default/includes/eslint/flat/profile/node-trusted-tool');
+const friendlyLocalsMixin = require('local-node-rig/profiles/default/includes/eslint/flat/mixins/friendly-locals');
+
+module.exports = [
+  ...nodeTrustedToolProfile,
+  ...friendlyLocalsMixin,
+  {
+    files: ['**/*.ts', '**/*.tsx'],
+    languageOptions: {
+      parserOptions: {
+        tsconfigRootDir: __dirname
+      }
+    },
+    rules: {
+      'no-console': 'off'
+    }
+  }
+];

apps/rush/package.json

@@ -43,6 +43,7 @@
   },
   "devDependencies": {
     "@rushstack/heft": "workspace:*",
+    "eslint": "~9.25.1",
     "local-node-rig": "workspace:*",
     "@rushstack/rush-amazon-s3-build-cache-plugin": "workspace:*",
     "@rushstack/rush-azure-storage-build-cache-plugin": "workspace:*",