feat(ci): use GitHub Actions

.github/workflows/nodejs.yml

@@ -0,0 +1,46 @@
+name: Node CI
+on: [push]
+jobs:
+  build:
+    name: Build and test
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [10.x, 12.x]
+    steps:
+    - uses: actions/checkout@v1
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - name: npm install, build, and test
+      run: |
+        npm ci
+        npm test
+        npm run lint
+        npm run cover
+      env:
+        CI: true
+    - name: Coveralls
+      uses: coverallsapp/github-action@master
+      with:
+        github-token: ${{ secrets.GITHUB_TOKEN }}
+  release:
+    name: Release master
+    runs-on: ubuntu-latest
+    needs: [build]
+    if: github.ref == 'refs/heads/master'
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v1
+    - name: Setup Node.js
+      uses: actions/setup-node@v1
+      with:
+        node-version: 12
+    - name: Install dependencies
+      run: npm ci
+    - name: Release
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+      run: npx semantic-release

.gitignore

@@ -3,3 +3,4 @@ npm-debug.log
 .idea/
 *.iml
 coverage/
+.nyc_output/