Add CI test, update dependencies

.github/CONTRIBUTING.md

@@ -20,7 +20,7 @@ Linting is ran as part of `yarn run test`. The build will fail if there are any
 
 ## Publishing
 
-- Ensure you are on the master branch locally.
+- Ensure you are on the main branch locally.
 - Update `CHANGELOG.md` and commit.
 - Run the following:
 

.github/workflows/ci.yml

@@ -0,0 +1,44 @@
+name: Test
+
+on:
+  push:
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version:
+          - 22
+          - 20
+          - 18
+          - 16
+          - 14
+          - 12
+          - 10
+          - 8
+          - 6
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - run: yarn install --frozen-lockfile --ignore-engines
+
+      - run: yarn lint
+        if: matrix.node-version == 22
+
+      - run: yarn add mocha@5 --dev --ignore-engines
+        if: matrix.node-version < 14
+
+      - run: yarn run test

dependabot.yml

@@ -1,6 +1,6 @@
 version: 2
 updates:
-  - package-ecosystem: "npm"
-    directory: "/"
+  - package-ecosystem: 'npm'
+    directory: '/'
     schedule:
-      interval: "monthly"
+      interval: 'monthly'

eslint.config.mjs

@@ -0,0 +1,31 @@
+import eslintJs from '@eslint/js';
+import eslintPluginN from 'eslint-plugin-n';
+import globals from 'globals';
+import eslintConfigPrettier from 'eslint-config-prettier';
+
+export default [
+  eslintJs.configs.recommended,
+  eslintPluginN.configs['flat/recommended'],
+  eslintConfigPrettier,
+  {
+    languageOptions: {
+      globals: {
+        ...globals.mocha,
+      },
+    },
+    settings: {
+      node: {version: '6'},
+    },
+  },
+  {
+    files: ['**/*.mjs'],
+    languageOptions: {sourceType: 'module'},
+    settings: {
+      node: {version: '22'},
+    },
+    rules: {
+      'n/no-unpublished-import': 'off',
+      'n/no-extraneous-import': 'off',
+    },
+  },
+];

package.json

@@ -9,9 +9,9 @@
   "main": "index.js",
   "license": "MIT",
   "scripts": {
-    "lint": "eslint .",
-    "test": "npm run lint && mocha",
-    "format": "yarn run prettier '**/*.{js,json,md,yml}' --write && yarn run lint --fix"
+    "lint": "eslint . && prettier . --check",
+    "test": "mocha",
+    "format": "eslint . --fix && prettier . --write"
   },
   "repository": {
     "type": "git",
@@ -25,12 +25,12 @@
     "fast-diff": "^1.1.2"
   },
   "devDependencies": {
-    "eslint": "^5.6.1",
-    "eslint-config-prettier": "^6.4.0",
-    "eslint-plugin-node": "^7.0.1",
-    "eslint-plugin-prettier": "^3.1.1",
-    "mocha": "^5.2.0",
-    "prettier": "^1.14.3"
+    "@eslint/js": "^9.21.0",
+    "eslint": "^9.21.0",
+    "eslint-config-prettier": "^10.0.2",
+    "eslint-plugin-n": "^17.16.2",
+    "mocha": "^11.1.0",
+    "prettier": "^3.5.3"
   },
   "engines": {
     "node": ">=6.0.0"