GitHub Actions workflow for Gradle: Executes the build process first, followed by running unit tests and integration tests in parallel. Leverages caching solutions from GitHub Actions `setup-gradle` and Gradle's local build cache. Configured to apply to both the `main` branch and other branches.

build.yaml

jobs:
  build:
    name: Build
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code from SCM
        uses: actions/checkout@v4

      - name: Set up Java
        uses: actions/setup-java@v3

      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@v4
        with:
          cache-read-only: false # enable caching for branches
      - name: Build 
        # we want to build for all Java files but not executing any tests
        # also enable local build cache with --build-cache so the build is cached via `setup-gradle` Github Actions
        run: ./gradlew build testClasses integrationTestClasses -x test -x integrationTest --parallel --build-cache

  unit-test:
    name: Run Unit Tests
    runs-on: ubuntu-latest
    needs: build
    steps:
      - name: Checkout code from SCM
        uses: actions/checkout@v4

      - name: Set up Java
        uses: actions/setup-java@v3

      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@v4
        with:
          # we don't want to cache any for this job
          # instead, it will reuse the local build cache created in Build job
          cache-read-only: true

      - name: Run Unit Tests
        run: ./gradlew test --parallel --build-cache
  integartion-test:
    name: Run Integration Tests
    runs-on: ubuntu-latest
    needs: build
    steps:
      - name: Checkout code from SCM
        uses: actions/checkout@v4

      - name: Set up Java
        uses: actions/setup-java@v3

      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@v4
        with:
          # we don't want to cache any for this job
          # instead, it will reuse the local build cache created in Build job
          cache-read-only: true

      - name: Run Integration Tests
        run: ./gradlew integrationTest --parallel --build-cache

cleanup.yaml

# as we create caches for each branch, need to cleanup when branch is deleted
name: Cleanup Caches by a Branch
on: delete

jobs:
  cleanup:
    if: github.event.ref_type == 'branch'
    runs-on: ubuntu-latest
    steps:
      - name: Cleanup
        run: |
          echo "Fetching list of cache key for branch $BRANCH"
          cacheKeysForPR=$(gh cache list --ref $BRANCH --limit 100 --json id --jq '.[].id')

          ## Setting this to not fail the workflow while deleting cache keys.
          set +e
          echo "Deleting caches..."
          for cacheKey in $cacheKeysForPR
          do
              gh cache delete $cacheKey
          done
          echo "Done"
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GH_REPO: ${{ github.repository }}
          BRANCH: ${{ github.event.ref }}