Require Node.js 18 and move to ESM

Author: sindresorhus

.github/workflows/main.yml

@@ -10,15 +10,14 @@ jobs:
       fail-fast: false
       matrix:
         node-version:
-          - 16
-          - 14
-          - 12
+          - 20
+          - 18
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           submodules: true
           fetch-depth: 0
-      - uses: actions/setup-node@v2
+      - uses: actions/setup-node@v3
         with:
           node-version: ${{ matrix.node-version }}
       - run: npm install

cli.js

@@ -1,13 +1,14 @@
 #!/usr/bin/env node
-'use strict';
-const meow = require('meow');
-const findReadmeFile = require('./lib/find-readme-file.js');
-const awesomeLint = require('./index.js');
+import process from 'node:process';
+import meow from 'meow';
+import findReadmeFile from './lib/find-readme-file.js';
+import awesomeLint from './index.js';
 
-const getReporter = name => {
-	// Check if reporter is an npm package
+const getReporter = async name => {
+	// Check if reporter is an npm package.
 	try {
-		return require(name).report;
+		const {report} = await import(name);
+		return report;
 	} catch (error) {
 		if (error.code === 'MODULE_NOT_FOUND') {
 			console.error(`No reporter found matching \`${name}\`. Using default reporter (vfile-reporter-pretty).`);
@@ -17,34 +18,31 @@ const getReporter = name => {
 	}
 };
 
-const main = async () => {
-	const cli = meow(`
-		Usage
-		  $ awesome-lint [url|filename]
-
-		Options
-		  --reporter, -r  Use a custom reporter
-	`, {
-		flags: {
-			reporter: {
-				type: 'string',
-				alias: 'r'
-			}
-		}
-	});
+const cli = meow(`
+	Usage
+	  $ awesome-lint [url|filename]
 
-	const input = cli.input[0];
+	Options
+	  --reporter, -r  Use a custom reporter
+`, {
+	importMeta: import.meta,
+	flags: {
+		reporter: {
+			type: 'string',
+			shortFlag: 'r',
+		},
+	},
+});
 
-	const options = {};
+const input = cli.input[0];
 
-	options.filename = input ? input : findReadmeFile(process.cwd());
+const options = {};
 
-	const reporterName = cli.flags.reporter;
-	if (reporterName) {
-		options.reporter = getReporter(reporterName);
-	}
+options.filename = input ?? findReadmeFile(process.cwd());
 
-	await awesomeLint.report(options);
-};
+const reporterName = cli.flags.reporter;
+if (reporterName) {
+	options.reporter = await getReporter(reporterName);
+}
 
-main();
+await awesomeLint.report(options);