Create build.yml

.github/workflows/build.yml

@@ -0,0 +1,34 @@
+name: build
+'on':
+  - pull_request
+  - push
+jobs:
+  build:
+    strategy:
+      matrix:
+        java:
+          - 16
+        os:
+          - ubuntu-20.04
+          - windows-latest
+    runs-on: '${{ matrix.os }}'
+    steps:
+      - name: checkout repository
+        uses: actions/checkout@v2
+      - name: validate gradle wrapper
+        uses: gradle/wrapper-validation-action@v1
+      - name: 'setup jdk ${{ matrix.java }}'
+        uses: actions/setup-java@v1
+        with:
+          java-version: '${{ matrix.java }}'
+      - name: make gradle wrapper executable
+        if: '${{ runner.os != ''Windows'' }}'
+        run: chmod +x ./gradlew
+      - name: build
+        run: ./gradlew build
+      - name: capture build artifacts
+        if: '${{ runner.os == ''Linux'' && matrix.java == ''16'' }}'
+        uses: actions/upload-artifact@v2
+        with:
+          name: Artifacts
+          path: build/libs/