use GH actions instead of Travis CI

.editorconfig

@@ -8,7 +8,7 @@ charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
 
-[package.json]
+[*.{json,yml}]
 indent_style = space
 indent_size = 2
 

.github/workflows/main.yml

@@ -0,0 +1,46 @@
+name: CI
+on:
+  - push
+  - pull_request
+env:
+  latest-node: 22.x
+
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node:
+          - version: 18.x
+          - version: 20.x
+          - version: ${{ latest-node }}
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Use Node.js ${{ matrix.node.version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node.version }}
+          cache: "npm"
+      - run: npm ci
+      - run: npm test
+
+  coverage:
+    name: Coverage
+    runs-on: ubuntu-latest
+    needs: test
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: ${{ latest-node }}
+          cache: "npm"
+
+      - name: Coverage
+        run: npm run coverage:lcov
+
+      - name: Coveralls
+        uses: coverallsapp/[email protected]

package.json

@@ -14,8 +14,8 @@
   },
   "scripts": {
     "test": "mocha -R spec",
-    "coverage": "nyc --reporter=html npm run test",
-    "coveralls": "nyc --reporter=lcovonly npm run test && cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js && rm -rf ./coverage"
+    "coverage:html": "nyc --reporter=html npm run test",
+    "coverage:lcov": "nyc --reporter=lcovonly npm run test"
   },
   "files": [
     "index.js"