Update ESLint (#597)

* Remove Azure Accounts dependency & delete configure flow

* Don't bring in a new package for one API call

* Update to ESLint flat config

* Enable stylistic

* And update TypeScript too

* Update back up to test-electron 2.4.1

.vscodeignore

@@ -1,10 +1,13 @@
 .gitattributes
 .gitignore
+.npmrc
 .vscode-test.mjs
+eslint.config.mjs
 tsconfig.json
-tslint.json
-webpack.config.js
+tsconfig.test.json
+webpack.config.mjs
 .azure-pipelines/
+.github/
 .vscode/
 .vscode-test/
 coverage/

eslint.config.mjs

@@ -0,0 +1,43 @@
+// @ts-check
+
+import eslint from '@eslint/js';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(
+    eslint.configs.recommended,
+    ...tseslint.configs.strictTypeChecked,
+    ...tseslint.configs.stylisticTypeChecked,
+    {
+        ignores: [
+            '.azure-pipelines/',
+            '.vscode-test/',
+            'dist/',
+            'out/',
+        ],
+    },
+    {
+        languageOptions: {
+            parserOptions: {
+                projectService: {
+                    allowDefaultProject: ['*.?(m)js'],
+                },
+                tsconfigRootDir: import.meta.dirname,
+            }
+        },
+        rules: {
+            // Allow numbers and booleans in template expressions
+            '@typescript-eslint/restrict-template-expressions': ['error', {
+                allowNumber: true,
+                allowBoolean: true,
+            }],
+            // Always use `return await` in async functions
+            '@typescript-eslint/return-await': ['error', 'always'],
+            // Prefer using String.match
+            '@typescript-eslint/prefer-regexp-exec': 'off',
+        },
+    },
+    {
+        files: ['**/*.?(m)js'],
+        extends: [tseslint.configs.disableTypeChecked],
+    },
+);