Use native ESM

.github/workflows/test.yml

@@ -1,64 +1,25 @@
 name: test
-
 on:
-  push:
-    branches:
-      - master
-  pull_request:
-    branches:
-      - master
-
+  - push
+  - pull_request
 jobs:
-  linux:
-    runs-on: ubuntu-latest
-
+  test:
+    name: Node.js ${{ matrix.node-version }} on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        node-version: [10.x, 12.x, 14.x]
-
+        node-version:
+          - 16
+          - 14
+          - 12
+        os:
+          - ubuntu-latest
+          - macos-latest
+          - windows-latest
     steps:
-    - uses: actions/checkout@v2
-    - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v1
-      with:
-        node-version: ${{ matrix.node-version }}
-    - run: npm install
-    - run: npm test
-      env:
-        CI: true
-
-  macos:
-    runs-on: macos-latest
-
-    strategy:
-      matrix:
-        node-version: [10.x, 12.x, 14.x]
-
-    steps:
-    - uses: actions/checkout@v2
-    - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v1
-      with:
-        node-version: ${{ matrix.node-version }}
-    - run: npm install
-    - run: npm test
-      env:
-        CI: true
-
-  windows:
-    runs-on: windows-latest
-
-    strategy:
-      matrix:
-        node-version: [10.x, 12.x, 14.x]
-
-    steps:
-    - uses: actions/checkout@v2
-    - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v1
-      with:
-        node-version: ${{ matrix.node-version }}
-    - run: npm install
-    - run: npm test
-      env:
-        CI: true
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node-version }}
+      - run: npm install
+      - run: npm test

index.js

@@ -1,14 +1,14 @@
-'use strict';
-const execa = require('execa');
-const isJpg = require('is-jpg');
-const mozjpeg = require('mozjpeg');
+import {Buffer} from 'node:buffer';
+import {execa} from 'execa';
+import isJpg from 'is-jpg';
+import mozjpeg from 'mozjpeg';
 
-module.exports = options => async buffer => {
+const imageminMozjpeg = options => async buffer => {
 	options = {
 		trellis: true,
 		trellisDC: true,
 		overshoot: true,
-		...options
+		...options,
 	};
 
 	if (!Buffer.isBuffer(buffer)) {
@@ -109,8 +109,10 @@ module.exports = options => async buffer => {
 	const {stdout} = await execa(mozjpeg, args, {
 		encoding: null,
 		input: buffer,
-		maxBuffer: Infinity
+		maxBuffer: Number.POSITIVE_INFINITY,
 	});
 
 	return stdout;
 };
+
+export default imageminMozjpeg;

package.json

@@ -4,6 +4,8 @@
   "description": "Imagemin plugin for mozjpeg",
   "license": "MIT",
   "repository": "imagemin/imagemin-mozjpeg",
+  "type": "module",
+  "exports": "./index.js",
   "author": {
     "name": "Kevin Mårtensson",
     "email": "[email protected]",
@@ -21,7 +23,7 @@
     }
   ],
   "engines": {
-    "node": ">=10"
+    "node": "^12.20.0 || ^14.13.1 || >=16.0.0"
   },
   "scripts": {
     "test": "xo && ava"
@@ -41,13 +43,13 @@
     "optimize"
   ],
   "dependencies": {
-    "execa": "^4.0.0",
-    "is-jpg": "^2.0.0",
-    "mozjpeg": "^7.0.0"
+    "execa": "^6.0.0",
+    "is-jpg": "^3.0.0",
+    "mozjpeg": "^8.0.0"
   },
   "devDependencies": {
-    "ava": "^3.8.0",
+    "ava": "^3.15.0",
     "is-progressive": "^3.0.0",
-    "xo": "^0.30.0"
+    "xo": "^0.47.0"
   }
 }

readme.md

@@ -11,8 +11,8 @@ $ npm install imagemin-mozjpeg
 ## Usage
 
 ```js
-const imagemin = require('imagemin');
-const imageminMozjpeg = require('imagemin-mozjpeg');
+import imagemin from 'imagemin';
+import imageminMozjpeg from 'imagemin-mozjpeg';
 
 (async () => {
 	await imagemin(['images/*.jpg'], {

test.js

@@ -1,39 +1,35 @@
-const {promisify} = require('util');
-const fs = require('fs');
-const path = require('path');
-const isJpg = require('is-jpg');
-const isProgressive = require('is-progressive');
-const test = require('ava');
-const m = require('.');
-
-const readFile = promisify(fs.readFile);
+import {promises as fs} from 'node:fs';
+import isJpg from 'is-jpg';
+import isProgressive from 'is-progressive';
+import test from 'ava';
+import imageminMozjpeg from './index.js';
 
 test('optimize a JPG', async t => {
-	const buf = await readFile(path.join(__dirname, 'fixture.jpg'));
-	const data = await m()(buf);
+	const buffer = await fs.readFile(new URL('fixture.jpg', import.meta.url));
+	const data = await imageminMozjpeg()(buffer);
 
-	t.true(data.length < buf.length);
+	t.true(data.length < buffer.length);
 	t.true(isJpg(data));
 	t.true(isProgressive.buffer(data));
 });
 
 test('support mozjpeg options', async t => {
-	const buf = await readFile(path.join(__dirname, 'fixture.jpg'));
-	const data = await m({progressive: false})(buf);
+	const buffer = await fs.readFile(new URL('fixture.jpg', import.meta.url));
+	const data = await imageminMozjpeg({progressive: false})(buffer);
 
 	t.false(isProgressive.buffer(data));
 });
 
 test('skip optimizing a non-JPG file', async t => {
-	const buf = await readFile(__filename);
-	const data = await m()(buf);
+	const buffer = await fs.readFile(new URL(import.meta.url));
+	const data = await imageminMozjpeg()(buffer);
 
-	t.deepEqual(data, buf);
+	t.deepEqual(data, buffer);
 });
 
 test('throw error when a JPG is corrupt', async t => {
-	const buf = await readFile(path.join(__dirname, 'fixture-corrupt.jpg'));
+	const buffer = await fs.readFile(new URL('fixture-corrupt.jpg', import.meta.url));
 	await t.throwsAsync(async () => {
-		await m()(buf);
+		await imageminMozjpeg()(buffer);
 	}, {message: /Corrupt JPEG data/});
 });