add workflow

.github/workflows/build.yml

@@ -0,0 +1,42 @@
+name: Build and run test
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go-version: [ '1.19', '1.20', '1.21', '1.22' ]
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ matrix.go-version }}
+      - name: Install dependencies
+        run: go get .
+      - name: Run gofmt
+        run: |
+          if [ "$(gofmt -s -l . | wc -l)" -gt 0 ]; then
+            echo "Some files are not correctly formatted. Run `gofmt -l -w`."
+            exit 1
+          fi
+      - name: Run golangci-lint
+        uses: golangci/golangci-lint-action@v6
+        with:
+          version: v6.0.0
+      - name: Build
+        run: go build -v ./...
+      - name: Test with Go
+        run: go test -json ./... > TestResults-${{ matrix.go-version }}.json
+      - name: Upload Go test results
+        uses: actions/upload-artifact@v4
+        with:
+          name: Go-results-${{ matrix.go-version }}
+          path: TestResults-${{ matrix.go-version }}.json