feat!: ESM only, Node 20+

.eslintrc.cjs

@@ -0,0 +1,19 @@
+module.exports = {
+  extends: ["shellscape/typescript"],
+  parserOptions: {
+    project: ["./tsconfig.eslint.json"],
+    tsconfigRootDir: __dirname,
+  },
+  settings: {
+    'import/resolver': {
+      typescript: {
+        // Use the ESLint tsconfig which includes tests
+        project: './tsconfig.eslint.json',
+        alwaysTryTypes: true
+      },
+      node: {
+        extensions: ['.js', '.mjs', '.cjs', '.ts', '.mts', '.cts', '.d.ts']
+      }
+    }
+  }
+};

.github/workflows/node-windows.yml

@@ -1,36 +1,46 @@
 name: Windows
 
 on:
+  # Run on all PRs (regardless of base branch)
   pull_request:
     types:
-      - edited
       - opened
       - synchronize
+      - reopened
+      - ready_for_review
+  # Run on direct pushes to the default branch only (avoid duplicate runs for PR branches)
   push:
     branches:
-      - '*'
+      - master
 
 jobs:
   build:
-    runs-on: windows-2019
+    runs-on: windows-2022
+
+    # Ensure only one run per PR/branch is active; cancel superseded runs on new pushes
+    concurrency:
+      group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.head_ref || github.ref_name }}
+      cancel-in-progress: true
 
     strategy:
       matrix:
-        node: ['18']
+        node: ['20.19.0']
 
     name: Node v${{ matrix.node }}
     steps:
       - name: Configure git line-breaks
         run: git config --global core.autocrlf false
 
       - name: Checkout Commit
-        uses: actions/checkout@v1
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
 
       - name: Checkout Master
         run: git branch -f master origin/master
 
       - name: Setup Node
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node }}
 

.github/workflows/validate.yml

@@ -1,31 +1,41 @@
 name: Validate
 
 on:
+  # Run on all PRs (regardless of base branch)
   pull_request:
     types:
-      - edited
       - opened
       - synchronize
+      - reopened
+      - ready_for_review
+  # Run on direct pushes to the default branch only (avoid duplicate runs for PR branches)
   push:
     branches:
-      - '*'
+      - master
 
 jobs:
   build:
     runs-on: ubuntu-latest
 
+    # Ensure only one run per PR/branch is active; cancel superseded runs on new pushes
+    concurrency:
+      group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.head_ref || github.ref_name }}
+      cancel-in-progress: true
+
     strategy:
       matrix:
-        node: ['20', '18', '16']
+        node: ['20.19.0']
 
     name: Node v${{ matrix.node }}
 
     steps:
       - name: Checkout Commit
-        uses: actions/checkout@v1
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
 
       - name: Setup Node
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node }}
 
@@ -54,4 +64,4 @@ jobs:
         run: pnpm lint:js
 
       - name: Run Tests
-        run: pnpm ci:coverage
+        run: pnpm ci:test

.nvmrc

@@ -1 +1 @@
-18
+20.19.0

.prettierrc.cjs

@@ -0,0 +1 @@
+module.exports = require('eslint-config-shellscape/prettier');

README.md

@@ -1,16 +1,10 @@
-[tests]: https://img.shields.io/circleci/project/github/shellscape/webpack-manifest-plugin.svg
-[tests-url]: https://circleci.com/gh/shellscape/webpack-manifest-plugin
-[cover]: https://codecov.io/gh/shellscape/webpack-manifest-plugin/branch/master/graph/badge.svg
-[cover-url]: https://codecov.io/gh/shellscape/webpack-manifest-plugin
 [size]: https://packagephobia.now.sh/badge?p=webpack-manifest-plugin
 [size-url]: https://packagephobia.now.sh/result?p=webpack-manifest-plugin
 
 <div align="center">
 	<img width="256" src="https://raw.githubusercontent.com/shellscape/webpack-manifest-plugin/master/assets/manifest.svg?sanitize=true" alt="webpack-manfiest-plugin"><br/><br/>
 </div>
 
-[![tests][tests]][tests-url]
-[![cover][cover]][cover-url]
 [![size][size]][size-url]
 [![libera manifesto](https://img.shields.io/badge/libera-manifesto-lightgrey.svg)](https://liberamanifesto.com)
 
@@ -24,7 +18,8 @@ A Webpack plugin for generating an asset manifest.
 
 `webpack-manifest-plugin` is an [evergreen 🌲](./.github/FAQ.md#what-does-evergreen-mean) module.
 
-This module requires an [Active LTS](https://github.com/nodejs/Release) Node version (v12.0.0+) and Webpack v5.0.0.
+This module now requires Node.js v20.19.0 or newer and Webpack v5.0.0.
+The package is ESM-only. If your project uses CommonJS, migrate to ESM or load this plugin from a dynamic `import()`.
 
 ## Contributing
 
@@ -48,19 +43,16 @@ _Note: We recommend using [webpack-nano](https://github.com/shellscape/webpack-n
 
 ## Usage
 
-Create a `webpack.config.js` file:
+Create a `webpack.config.js` or `webpack.config.mjs` file (ESM):
 
 ```js
-const { WebpackManifestPlugin } = require('webpack-manifest-plugin');
-const options = { ... };
-
-module.exports = {
-	// an example entry definition
-	entry: [ 'app.js'	],
-  ...
-  plugins: [
-    new WebpackManifestPlugin(options)
-  ]
+import { WebpackManifestPlugin } from 'webpack-manifest-plugin';
+
+export default {
+  // an example entry definition
+  entry: ['app.js'],
+  // ...
+  plugins: [new WebpackManifestPlugin(/* options */)]
 };
 ```
 

commitlint.config.cjs

@@ -0,0 +1 @@
+module.exports = { extends: ['@commitlint/config-conventional'] };

package.json

@@ -7,25 +7,31 @@
   "author": "Dane Thurber <dane.thurber@gmail.com>",
   "homepage": "https://github.com/shellscape/webpack-manifest-plugin",
   "bugs": "https://github.com/shellscape/webpack-manifest-plugin/issues",
+  "type": "module",
   "main": "dist/index.js",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js",
+      "default": "./dist/index.js"
+    }
+  },
   "engines": {
-    "node": ">=14"
+    "node": ">=20.19.0"
   },
   "scripts": {
     "build": "tsc --project tsconfig.json",
-    "ci:coverage": "nyc pnpm ci:test && nyc report --reporter=text-lcov > coverage.lcov",
     "ci:lint": "pnpm lint && pnpm security",
-    "ci:test": "pnpm test -- --verbose",
+    "ci:test": "vitest run",
     "lint": "pnpm lint:docs && pnpm lint:json && pnpm lint:js",
     "lint-staged": "lint-staged",
     "lint:docs": "prettier --write README.md",
     "lint:js": "eslint --cache --fix --cache src test",
-    "lint:json": "prettier --write codecov.yml package.json",
+    "lint:json": "prettier --write package.json",
     "prepare": "husky install",
     "prepublishOnly": "pnpm lint && pnpm build",
-    "pretest": "pnpm install && pnpm build",
     "security": "pnpm audit --audit-level=high --prod",
-    "test": "ava --timeout=2m"
+    "test": "vitest"
   },
   "files": [
     "dist",
@@ -40,52 +46,38 @@
     "webpack-sources": "^2.2.0"
   },
   "devDependencies": {
-    "@ava/babel": "^1.0.1",
     "@commitlint/cli": "^13.1.0",
     "@commitlint/config-conventional": "^13.1.0",
     "@svgr/webpack": "^5.4.0",
-    "@types/node": "^16.4.3",
+    "@types/node": "^20.11.30",
     "@types/webpack": "^5.28.0",
     "@types/webpack-sources": "^2.1.1",
     "@wordpress/dependency-extraction-webpack-plugin": "^3.1.0",
-    "ava": "^5.1.0",
-    "codecov": "^3.1.0",
     "copy-webpack-plugin": "^6.2.1",
     "del": "^6.0.0",
+    "eslint": "8.57.0",
     "eslint-config-shellscape": "^6.0.0",
+    "eslint-import-resolver-typescript": "^4.4.4",
     "file-loader": "^6.2.0",
     "husky": "8.0.2",
     "lint-staged": "11.1.1",
     "memory-fs": "^0.4.1",
-    "nyc": "^15.1.0",
     "pre-commit": "^1.2.2",
     "prettier": "^2.1.2",
     "prettier-plugin-package": "^1.2.0",
     "react": "^16.3.2",
     "style-loader": "^0.23.0",
-    "ts-node": "^10.1.0",
     "tslib": "^2.3.0",
-    "typescript": "^4.9.4",
+    "typescript": "^5.6.3",
+    "vitest": "^1.6.0",
     "webpack": "^5.75.0",
     "webpack-merge": "^5.8.0"
   },
-  "ava": {
-    "files": [
-      "!**/fixtures/**",
-      "!**/helpers/**",
-      "!**/output/**"
-    ]
-  },
   "husky": {
     "hooks": {
       "pre-commit": "lint-staged"
     }
   },
-  "jest": {
-    "testEnvironment": "node",
-    "coverageDirectory": "./coverage/",
-    "collectCoverage": true
-  },
   "lint-staged": {
     "*.js": [
       "eslint --fix"
@@ -94,13 +86,5 @@
   "maintainers": [
     "Andrew Powell <andrew@shellscape.org>"
   ],
-  "nyc": {
-    "include": [
-      "src/*.ts"
-    ],
-    "exclude": [
-      "test/"
-    ]
-  },
   "pre-commit": "lint-staged"
 }