Require Node.js 12

.github/workflows/main.yml

@@ -12,10 +12,9 @@ jobs:
         node-version:
           - 14
           - 12
-          - 10
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
+      - uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node-version }}
       - run: npm install

cli.js

@@ -1,7 +1,6 @@
 #!/usr/bin/env node
-'use strict';
-const meow = require('meow');
-const supportsColor = require('supports-color');
+import meow from 'meow';
+import supportsColor from 'supports-color';
 
 const cli = meow(`
 	Usage
@@ -19,7 +18,7 @@ const cli = meow(`
 	Exits with code 0 if color is supported and 1 if not
 `);
 
-const flags = cli.flags;
-const level = flags['256'] ? 'has256' : flags['16m'] ? 'has16m' : 'hasBasic';
+const {flags} = cli;
+const level = flags['256'] ? 'has256' : (flags['16m'] ? 'has16m' : 'hasBasic');
 
-process.exit(supportsColor[level] ? 0 : 1);
+process.exitCode = supportsColor[level] ? 0 : 1;

package.json

@@ -10,11 +10,12 @@
 		"email": "[email protected]",
 		"url": "https://sindresorhus.com"
 	},
+	"type": "module",
 	"bin": {
-		"supports-color": "cli.js"
+		"supports-color": "./cli.js"
 	},
 	"engines": {
-		"node": ">=4"
+		"node": ">=12"
 	},
 	"scripts": {
 		"test": "xo && ava"
@@ -44,12 +45,12 @@
 		"detect"
 	],
 	"dependencies": {
-		"meow": "^3.7.0",
-		"supports-color": "^4.1.0"
+		"meow": "^9.0.0",
+		"supports-color": "^9.0.0"
 	},
 	"devDependencies": {
-		"ava": "^1",
-		"execa": "^0.7.0",
-		"xo": "^0.20.0"
+		"ava": "^3.15.0",
+		"execa": "^5.0.0",
+		"xo": "^0.38.2"
 	}
 }