feat: correct eslint9 implementation, add config generator

.prettierignore

@@ -0,0 +1,2 @@
+package-lock.json
+node_modules

README.md

@@ -25,37 +25,51 @@ This plugin requires ESLint 9 or later.
 
 You can use this plugin with pre-set configurations, or you can configure it yourself.
 
-### Pre-set Configurations
+### Generate a config
 
-#### Node & Mocha
+This is the recommended way to generate a configuration.
 
 ```js
-const eslintPlugin6river = require('eslint-plugin-6river');
+import eslintPluginSixriver from 'eslint-plugin-6river';
 
-module.exports = [...eslintPlugin6river.configs['node-mocha']];
+export default [...eslintPluginSixriver.generateConfig(import.meta.dirname, ['node', 'mocha'])];
 ```
 
-#### Browser & Jest
+Supported config names can be found in the generate-config.js file.
+
+### Pre-set Configurations
+
+#### TypeScript
+
+This is the base opinionated TS configuration that you probably don't need to use by yourself. Use
+one of the ecosystem versions below which extend this config.
 
 ```js
-const eslintPlugin6river = require('eslint-plugin-6river');
+import eslintPlugin6river from 'eslint-plugin-6river';
 
-module.exports = [...eslintPlugin6river.configs['browser-jest']];
+export default [...eslintPlugin6river.configs['typescript']];
 ```
 
 ### Custom Configuration
 
 ```js
-const eslintPlugin6river = require('eslint-plugin-6river');
+import eslintPlugin6river from 'eslint-plugin-6river';
 
-module.exports = [
+export default [
 	{
+		files: ['**/*.{ts,tsx}'],
 		plugins: {
 			'6river': eslintPlugin6river,
 		},
 		rules: {
 			'6river/rule-name': 'error',
 		},
+		languageOptions: {
+			parserOptions: {
+				projectService: true,
+				tsconfigRootDir: import.meta.dirname,
+			},
+		},
 	},
 ];
 ```

lib/configs/browser.js

@@ -0,0 +1,13 @@
+import plugin from 'eslint-plugin-jest';
+import globals from 'globals';
+
+export default [
+	{
+		files: ['**/*.{ts,tsx}'],
+		languageOptions: {
+			globals: {
+				...globals.browser,
+			},
+		},
+	},
+];

lib/configs/jest.js

@@ -0,0 +1,26 @@
+import globals from 'globals';
+
+import eslintPluginJest from 'eslint-plugin-jest';
+
+export default [
+	eslintPluginJest.configs['flat/recommended'],
+	{
+		rules: {
+			'jest/valid-title': ['error', { ignoreTypeOfDescribeName: true }],
+		},
+		files: ['**/*.{ts,tsx}'],
+		languageOptions: {
+			globals: {
+				...globals.jest,
+			},
+		},
+	},
+	{
+		files: ['**/jest.config.js'],
+		languageOptions: {
+			globals: {
+				...globals.node,
+			},
+		},
+	},
+];

lib/configs/mocha.js

@@ -0,0 +1,15 @@
+import globals from 'globals';
+
+import eslintPluginMocha from 'eslint-plugin-mocha';
+
+export default [
+	eslintPluginMocha.configs.flat.recommended,
+	{
+		files: ['**/*.{ts,tsx}'],
+		languageOptions: {
+			globals: {
+				...globals.mocha,
+			},
+		},
+	},
+];

lib/configs/node.js

@@ -0,0 +1,12 @@
+import globals from 'globals';
+
+export default [
+	{
+		files: ['**/*.ts'],
+		languageOptions: {
+			globals: {
+				...globals.node,
+			},
+		},
+	},
+];

lib/configs/react.js

@@ -0,0 +1,43 @@
+import eslintPluginReact from 'eslint-plugin-react';
+import eslintPluginReactHooks from 'eslint-plugin-react-hooks';
+
+export default [
+	{
+		...eslintPluginReact.configs.flat.recommended,
+		settings: {
+			...eslintPluginReact.configs.flat.recommended?.settings,
+			react: {
+				...eslintPluginReact.configs.flat.recommended?.settings?.react,
+				version: 'detect',
+			},
+		},
+	},
+
+	// https://github.com/facebook/react/issues/28313
+	// While waiting for eslint-plugin-react-hooks to support eslint9, manually configure it.
+	// If you're reading this in 2025 or later, you probably can delete this and just use
+	// the predefined flat config once this is merged and release:
+	// https://github.com/facebook/react/pull/30774
+	{
+		files: ['**/*.{ts,tsx}'],
+		plugins: {
+			'react-hooks': eslintPluginReactHooks,
+		},
+		rules: eslintPluginReactHooks.configs.recommended.rules,
+	},
+	// General react config
+	{
+		files: ['**/*.{ts,tsx}'],
+		rules: {
+			'react/react-in-jsx-scope': 'off',
+			'react/jsx-uses-react': 'off',
+		},
+		files: ['**/*.{ts,tsx}'],
+		languageOptions: {
+			globals: {
+				React: 'readonly',
+				JSX: 'readonly',
+			},
+		},
+	},
+];

lib/configs/typescript.js

@@ -0,0 +1,122 @@
+import eslintPluginImport from 'eslint-plugin-import';
+import js from '@eslint/js';
+import ts from 'typescript-eslint';
+import globals from 'globals';
+
+import plugin from '../plugin.js';
+
+const sixriverJsRules = {
+	// prettier owns most formatting rules now
+	'max-len': ['warn', 120, 2],
+
+	curly: ['error', 'all'],
+	'prefer-const': ['error'],
+	'no-console': ['error'],
+	'no-fallthrough': ['error'],
+	'no-undef': ['error'],
+	'no-var': ['error'],
+	strict: ['error', 'global'],
+	'object-shorthand': 'error',
+	'no-await-in-loop': 'error',
+	eqeqeq: 'error',
+	'require-jsdoc': 'off',
+	'import/order': [
+		'error',
+		{
+			groups: [['builtin'], ['external'], ['internal', 'parent', 'sibling', 'index']],
+			'newlines-between': 'always',
+			alphabetize: {
+				order: 'asc',
+			},
+		},
+	],
+	'import/no-self-import': 'error',
+	'import/newline-after-import': 'error',
+};
+
+export default [
+	// Global ignore list, must only have this key
+	// https://eslint.org/docs/latest/use/configure/configuration-files#globally-ignoring-files-with-ignores
+	{
+		ignores: [
+			'.rush',
+			'dist*/',
+			'node_modules',
+			'coverage/',
+			'.prettierrc.js',
+			'eslint.config.mjs',
+		],
+	},
+
+	// Typescript gives an array of rules, because why not
+	...ts.configs.recommended,
+
+	// Our rules, customize 6River stuff here
+	{
+		name: 'eslint-plugin-6river-typescript',
+		files: ['**/*.{ts,tsx}'],
+		plugins: {
+			'6river': plugin,
+			import: eslintPluginImport,
+		},
+		rules: {
+			...sixriverJsRules,
+			'@typescript-eslint/no-empty-object-type': ['off'],
+			'@typescript-eslint/no-explicit-any': ['off'],
+			'@typescript-eslint/no-floating-promises': 'error',
+			'@typescript-eslint/no-namespace': 'off',
+			'@typescript-eslint/no-non-null-assertion': 'off',
+			'@typescript-eslint/no-unnecessary-condition': 'off',
+			'@typescript-eslint/no-unused-vars': [
+				'error',
+				{
+					caughtErrors: 'none',
+					argsIgnorePattern: '^_',
+					ignoreRestSiblings: true,
+				},
+			],
+			'@typescript-eslint/triple-slash-reference': 'error',
+			'6river/new-cap': ['error', { capIsNewExceptionPattern: '^@' }],
+			'new-cap': 'off',
+			'no-cond-assign': [2, 'always'],
+			'no-undef': 'off',
+			'no-unused-vars': 'off',
+			'valid-jsdoc': 'off',
+			'no-invalid-this': 'off',
+		},
+		settings: {
+			'import/resolver': {
+				node: {
+					extensions: ['.js', '.jsx', '.ts', '.tsx'],
+				},
+			},
+		},
+		linterOptions: {
+			noInlineConfig: false,
+			reportUnusedDisableDirectives: 'warn',
+		},
+	},
+
+	{
+		name: 'eslint-plugin-6river-javascript',
+		files: ['**/*.{js,jsx,mjs,cjs}'],
+		plugins: {
+			'6river': plugin,
+			import: eslintPluginImport,
+		},
+		rules: {
+			...js.configs.recommended.rules,
+			...sixriverJsRules,
+		},
+	},
+
+	// Config file overrides
+	{
+		files: ['.prettierrc.js'],
+		languageOptions: {
+			globals: {
+				...globals.node,
+			},
+		},
+	},
+];