add github workflows

.github/workflows/ci.yml

@@ -0,0 +1,27 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v2
+        with:
+          node-version: 16.x
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Build project
+        run: npm run build

.github/workflows/release.yml

@@ -0,0 +1,53 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v2
+        with:
+          node-version: 16.x
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build
+        run: npm run build
+
+      - name: Package build files
+        run: |
+          mkdir -p dist
+          zip -r dist/build-${{ github.sha }}.zip dist
+
+      - name: Get package version
+        id: get_version
+        run: echo "::set-output name=version::$(npm show <package-name> version)"
+
+      - name: Create GitHub release
+        id: create_release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: Release ${{ github.ref }}
+          body: |
+            Package version: ${{ steps.get_version.outputs.version }}
+          draft: false
+          prerelease: false
+
+      - name: Upload build artifact
+        uses: actions/upload-artifact@v2
+        with:
+          name: build-artifact
+          path: dist/build-${{ github.sha }}.zip