Enable some stricter compiler and linting options, and general repo cleanup.

.gitattributes

@@ -64,7 +64,7 @@
 
 # Don't allow people to merge changes to these generated files, because the result
 # may be invalid.  You need to run "rush update" again.
-pnpm-lock.yaml               merge=binary
+pnpm-lock.yaml               merge=text
 shrinkwrap.yaml              merge=binary
 npm-shrinkwrap.json          merge=binary
 yarn.lock                    merge=binary

.gitignore

@@ -31,8 +31,8 @@ bower_components
 build/Release
 
 # Dependency directories
-node_modules/
-jspm_packages/
+node_modules
+jspm_packages
 
 # Optional npm cache directory
 .npm
@@ -58,11 +58,21 @@ jspm_packages/
 # OS X temporary files
 .DS_Store
 
+# IntelliJ IDEA project files; if you want to commit IntelliJ settings, this recipe may be helpful:
+# https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+.idea/
+*.iml
+
 # Rush temporary files
 common/deploy/
 common/temp/
 common/autoinstallers/*/.npmrc
 **/.rush/temp/
+*.lock
+
+# Heft temporary files
+.cache
+.heft
 
 # Common toolchain intermediate files
 temp
@@ -77,7 +87,3 @@ dist
 
 # Visual Studio Code
 .vscode
-
-# Heft
-*/.heft/build-cache/**
-*/.heft/temp/**

api-demo/.eslintrc.js

@@ -1,7 +1,40 @@
 // This is a workaround for https://github.com/eslint/eslint/issues/3458
-require('@rushstack/eslint-config/patch/modern-module-resolution');
+require('@rushstack/heft-node-rig/profiles/default/includes/eslint/patch/modern-module-resolution');
+// This is a workaround for https://github.com/microsoft/rushstack/issues/3021
+require('@rushstack/heft-node-rig/profiles/default/includes/eslint/patch/custom-config-package-names');
 
 module.exports = {
-  extends: ['@rushstack/eslint-config/profile/node', '@rushstack/eslint-config/mixins/friendly-locals'],
-  parserOptions: { tsconfigRootDir: __dirname }
+  extends: [
+    '@rushstack/heft-node-rig/profiles/default/includes/eslint/profile/node',
+    '@rushstack/heft-node-rig/profiles/default/includes/eslint/mixins/friendly-locals'
+  ],
+  parserOptions: { tsconfigRootDir: __dirname },
+
+  plugins: ['eslint-plugin-header'],
+  overrides: [
+    {
+      files: ['*.ts', '*.tsx'],
+      rules: {
+        // Rationale: Including the `type` annotation in the import statement for imports
+        // only used as types prevents the import from being emitted in the compiled output.
+        '@typescript-eslint/consistent-type-imports': [
+          'warn',
+          { prefer: 'type-imports', disallowTypeAnnotations: false, fixStyle: 'inline-type-imports' }
+        ],
+
+        // Rationale: If all imports in an import statement are only used as types,
+        // then the import statement should be omitted in the compiled JS output.
+        '@typescript-eslint/no-import-type-side-effects': 'warn',
+
+        'header/header': [
+          'warn',
+          'line',
+          [
+            ' Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.',
+            ' See LICENSE in the project root for license information.'
+          ]
+        ]
+      }
+    }
+  ]
 };

api-demo/package.json

@@ -7,19 +7,21 @@
   "dependencies": {
     "@microsoft/tsdoc": "workspace:*",
     "colors": "~1.4.0",
-    "typescript": "~5.0.4"
+    "typescript": "~5.4.2"
   },
   "devDependencies": {
-    "@rushstack/eslint-config": "~3.3.1",
-    "@rushstack/heft-node-rig": "2.2.5",
-    "@rushstack/heft": "^0.53.1",
+    "@rushstack/heft-node-rig": "~2.6.11",
+    "@rushstack/heft": "^0.66.13",
     "@types/heft-jest": "1.0.3",
     "@types/node": "14.18.36",
-    "eslint": "~8.42.0"
+    "eslint": "~8.57.0",
+    "eslint-plugin-header": "~3.1.1"
   },
   "scripts": {
     "build": "heft test --clean",
     "simple": "node ./lib/start.js simple",
-    "advanced": "node ./lib/start.js advanced"
+    "advanced": "node ./lib/start.js advanced",
+    "_phase:build": "heft run --only build -- --clean",
+    "_phase:test": "heft run --only test -- --clean"
   }
 }

api-demo/src/Formatter.ts

@@ -1,4 +1,7 @@
-import { DocNode, DocExcerpt } from '@microsoft/tsdoc';
+// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
+// See LICENSE in the project root for license information.
+
+import { type DocNode, DocExcerpt } from '@microsoft/tsdoc';
 
 /**
  * This is a simplistic solution until we implement proper DocNode rendering APIs.

api-demo/src/advancedDemo.ts

@@ -1,3 +1,6 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
+// See LICENSE in the project root for license information.
+
 import colors from 'colors';
 import * as os from 'os';
 import * as path from 'path';

api-demo/src/simpleDemo.ts

@@ -1,8 +1,11 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
+// See LICENSE in the project root for license information.
+
 import colors from 'colors';
 import * as fs from 'fs';
 import * as path from 'path';
 import * as os from 'os';
-import { TSDocParser, ParserContext, DocComment } from '@microsoft/tsdoc';
+import { TSDocParser, type ParserContext, type DocComment } from '@microsoft/tsdoc';
 import { Formatter } from './Formatter';
 
 /**

api-demo/src/start.ts

@@ -1,3 +1,6 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
+// See LICENSE in the project root for license information.
+
 import * as colors from 'colors';
 import * as os from 'os';
 import { simpleDemo } from './simpleDemo';

api-demo/tsconfig.json

@@ -2,6 +2,7 @@
   "$schema": "http://json.schemastore.org/tsconfig",
   "extends": "./node_modules/@rushstack/heft-node-rig/profiles/default/tsconfig-base.json",
   "compilerOptions": {
+    "isolatedModules": true,
     "types": ["heft-jest", "node"]
   }
 }

common/autoinstallers/rush-prettier/package.json

@@ -3,7 +3,7 @@
   "version": "1.0.0",
   "private": true,
   "dependencies": {
-    "pretty-quick": "2.0.1",
-    "prettier": "2.0.5"
+    "pretty-quick": "4.0.0",
+    "prettier": "3.2.5"
   }
 }