Require Node.js 12.20 and move to ESM

.github/workflows/main.yml

@@ -10,14 +10,10 @@ jobs:
       fail-fast: false
       matrix:
         node-version:
-          - 14
-          - 12
-          - 10
-          - 8
-          - 6
+          - 16
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
+      - uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node-version }}
       - run: npm install

index.d.ts

@@ -1,40 +1,31 @@
-declare const macosRelease: {
-	/**
-	Get the name and version of a macOS release from the Darwin version.
+/**
+Get the name and version of a macOS release from the Darwin version.
 
-	@param release - By default, the current operating system is used, but you can supply a custom [Darwin kernel version](https://en.wikipedia.org/wiki/Darwin_%28operating_system%29#Release_history), which is the output of [`os.release()`](https://nodejs.org/api/os.html#os_os_release).
+@param release - By default, the current operating system is used, but you can supply a custom [Darwin kernel version](https://en.wikipedia.org/wiki/Darwin_%28operating_system%29#Release_history), which is the output of [`os.release()`](https://nodejs.org/api/os.html#os_os_release).
 
-	@example
-	```
-	import * as os from 'os';
-	import macosRelease = require('macos-release');
+@example
+```
+import os from 'node:os';
+import macosRelease from 'macos-release';
 
-	// On a macOS Sierra system
+// On a macOS Sierra system
 
-	macosRelease();
-	//=> {name: 'Sierra', version: '10.12'}
+macosRelease();
+//=> {name: 'Sierra', version: '10.12'}
 
-	os.release();
-	//=> 13.2.0
-	// This is the Darwin kernel version
+os.release();
+//=> 13.2.0
+// This is the Darwin kernel version
 
-	macosRelease(os.release());
-	//=> {name: 'Sierra', version: '10.12'}
+macosRelease(os.release());
+//=> {name: 'Sierra', version: '10.12'}
 
-	macosRelease('14.0.0');
-	//=> {name: 'Yosemite', version: '10.10'}
+macosRelease('14.0.0');
+//=> {name: 'Yosemite', version: '10.10'}
 
-	macosRelease('20.0.0');
-	//=> {name: 'Big Sur', version: '11'}
-	```
-	*/
-	(): {name: string, version: string}
-	(release: string): {name: string, version: string} | undefined;
-
-	// TODO: remove this in the next major version, refactor the whole definition to:
-	// declare function macosRelease(release?: string): {name: string, version: string};
-	// export = macosRelease;
-	default: typeof macosRelease;
-};
-
-export = macosRelease;
+macosRelease('20.0.0');
+//=> {name: 'Big Sur', version: '11'}
+```
+*/
+export default function macosRelease(): {name: string; version: string};
+export default function macosRelease(release: string): {name: string; version: string} | undefined;

index.js

@@ -1,5 +1,4 @@
-'use strict';
-const os = require('os');
+import os from 'node:os';
 
 const nameMap = new Map([
 	[21, ['Monterey', '12']],
@@ -18,20 +17,19 @@ const nameMap = new Map([
 	[8, ['Tiger', '10.4']],
 	[7, ['Panther', '10.3']],
 	[6, ['Jaguar', '10.2']],
-	[5, ['Puma', '10.1']]
+	[5, ['Puma', '10.1']],
 ]);
 
-const macosRelease = release => {
+export default function macosRelease(release) {
 	release = Number((release || os.release()).split('.')[0]);
 
-	const [name, version] = nameMap.get(release);
+	const [name, version] = nameMap.get(release) || {
+		name: 'Unknown',
+		version: '',
+	};
 
 	return {
 		name,
-		version
+		version,
 	};
-};
-
-module.exports = macosRelease;
-// TODO: remove this in the next major version
-module.exports.default = macosRelease;
+}

index.test-d.ts

@@ -1,5 +1,5 @@
 import {expectType} from 'tsd';
-import macosRelease = require('.');
+import macosRelease from './index.js';
 
-expectType<{name: string, version: string}>(macosRelease());
-expectType<{name: string, version: string} | undefined>(macosRelease('foo'));
+expectType<{name: string; version: string}>(macosRelease());
+expectType<{name: string; version: string} | undefined>(macosRelease('foo'));

package.json

@@ -10,8 +10,10 @@
 		"email": "sindresorhus@gmail.com",
 		"url": "https://sindresorhus.com"
 	},
+	"type": "module",
+	"exports": "./index.js",
 	"engines": {
-		"node": ">=6"
+		"node": "^12.20.0 || ^14.13.1 || >=16.0.0"
 	},
 	"scripts": {
 		"test": "xo && ava && tsd"
@@ -33,8 +35,8 @@
 		"version"
 	],
 	"devDependencies": {
-		"ava": "^1.4.1",
-		"tsd": "^0.7.1",
-		"xo": "^0.24.0"
+		"ava": "^3.15.0",
+		"tsd": "^0.17.0",
+		"xo": "^0.44.0"
 	}
 }

readme.md

@@ -12,8 +12,8 @@ $ npm install macos-release
 ## Usage
 
 ```js
-const os = require('os');
-const macosRelease = require('macos-release');
+import os from 'node:os';
+import macosRelease from 'macos-release';
 
 // On a macOS Sierra system
 

test.js

@@ -1,14 +1,14 @@
 import test from 'ava';
-import macosRelease from '.';
+import macosRelease from './index.js';
 
 test('main', t => {
 	t.deepEqual(macosRelease('13.2.0'), {
 		name: 'Mavericks',
-		version: '10.9'
+		version: '10.9',
 	});
 
 	t.deepEqual(macosRelease('20.0.0'), {
 		name: 'Big Sur',
-		version: '11'
+		version: '11',
 	});
 });