Use GitHub Actions

.github/workflows/pr-build-workflow.yml

@@ -0,0 +1,28 @@
+name: PR Build
+
+on: pull_request
+
+env:
+  RUN_JOBS: ${{ github.repository == 'spring-projects/spring-security' }}
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - if: env.RUN_JOBS == 'true'
+        uses: actions/checkout@v2
+      - name: Set up JDK
+        if: env.RUN_JOBS == 'true'
+        uses: actions/setup-java@v1
+        with:
+          java-version: '11'
+      - name: Cache Gradle packages
+        if: env.RUN_JOBS == 'true'
+        uses: actions/cache@v2
+        with:
+          path: ~/.gradle/caches
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle') }}
+      - name: Build with Gradle
+        if: env.RUN_JOBS == 'true'
+        run: ./gradlew clean build --continue --scan