experimental.

eslint.config.mjs

@@ -0,0 +1,145 @@
+import eslint from '@eslint/js'
+import tseslint from 'typescript-eslint'
+import promisePlugin from 'eslint-plugin-promise'
+import reactPlugin from 'eslint-plugin-react'
+import stylistic from '@stylistic/eslint-plugin'
+import nodePlugin from 'eslint-plugin-n'
+import globals from 'globals'
+
+/**
+ * Packages within the monorepo (that can be imported)
+ */
+const monoRepoPackages = [
+	'@iwsio/json-csv-core',
+	'@iwsio/json-csv-node'
+]
+
+/**
+ * These project paths are node specific projects and require the package
+ * names above to be included in the n/no-extraneous-import rule.
+ */
+const monoRepoNodeProjects = [
+	'packages/json-csv-core',
+	'packages/json-csv-node'
+]
+
+/**
+ * And here's the actual configuration.
+ */
+export default [
+	...tseslint.config(
+
+		// global ignores have a single prop `ignores`
+		{
+			ignores: ['**/node_modules/*', '**/dist/'] // global ignore with single ignore key
+		},
+
+		// applies to all files: Core ES Rules
+		eslint.configs.recommended,
+
+		// applies to all files: Core TS Rules
+		...tseslint.configs.recommended,
+
+		/**
+     * Stylistic rules factory. This generates styling rules with a few options.
+     * For details, see: https://eslint.style/guide/config-presets#configuration-factory
+     * For options, see: https://github.com/eslint-stylistic/eslint-stylistic/blob/main/packages/eslint-plugin/configs/customize.ts
+     **/
+		stylistic.configs.customize({
+			braceStyle: '1tbs',
+			commaDangle: 'never',
+			indent: 'tab',
+			jsx: true,
+			quotes: 'single',
+			semi: false
+		}),
+		/**
+     * Applies to all files: Additional plugins like: promise, stylistic, and react
+     */
+		{
+			plugins: {
+				promise: promisePlugin,
+				react: reactPlugin
+			},
+			languageOptions: {
+				ecmaVersion: 2023, // Targeted ES
+
+				/**
+        * Global variables to consider; we're just including all browser, node,
+        * and es2023 ones. (like window, document, process, etc)
+        */
+				globals: {
+					...globals.browser,
+					...globals.node,
+					...globals.es2023,
+					...{
+						describe: false,
+						it: false,
+						before: false,
+						after: false,
+						beforeEach: false,
+						afterEach: false,
+						test: false,
+						expect: false,
+            should: false
+					}
+				}
+			},
+
+			/**
+      * Rules configuration; we start with the recommended and then follow with overrides.
+      */
+			rules: {
+				...promisePlugin.configs.recommended.rules,
+				...reactPlugin.configs.recommended.rules,
+				...reactPlugin.configs['jsx-runtime'].rules,
+
+        'n/no-unsupported-features/es-syntax': 'off', // We're mixing ESM and CJS with controls around the Node 10 runtime.
+
+
+				// Overrides and additions
+				'promise/always-return': ['error', { ignoreLastCallback: true }],
+
+				// enable underscore ignore pattern for unused vars
+				'@typescript-eslint/no-unused-vars': ['error', {
+					argsIgnorePattern: '^_',
+					varsIgnorePattern: '^_',
+					destructuredArrayIgnorePattern: '^_',
+					caughtErrorsIgnorePattern: '^_'
+				}]
+			},
+
+			settings: {
+				react: {
+					version: 'detect' // You can add this if you get a warning about the React version when you lint
+				}
+			}
+		},
+
+    {
+      files: ['**/*.(test|spec).(mj|j|t|cj|ct|mt)s', '**/test-runner/**/*', '**/test-runner-core/**/*'],
+      rules: {
+        '@stylistic/max-statements-per-line': ['error', { max: 2 }],
+        '@typescript-eslint/no-var-requires': 'off'
+      }
+    },
+
+		// applies to only Node project files referenced above.
+		{
+			// Node rules
+			files: monoRepoNodeProjects.map(path => `${path}/**/*`),
+
+			plugins: {
+				n: nodePlugin
+			},
+
+			rules: {
+				...nodePlugin.configs['flat/recommended'].rules,
+
+				'n/no-extraneous-import': ['error', {
+					allowModules: [...monoRepoPackages]
+				}]
+			}
+		}
+	)
+]

npm-version-helper.cjs

@@ -9,4 +9,4 @@ function gatherVerisonAndEmit(node, script, arg0) {
 	process.stdout.write(projVersion, 'utf8')
 }
 
-gatherVerisonAndEmit(...process.argv)
+gatherVerisonAndEmit(...process.argv)