continuous-integration.yaml

name: "Continuous Integration"
on:
  pull_request:
    branches: [ "*" ]

env:
  MVN_MULTI_THREADED_ARGS: --batch-mode --no-transfer-progress --fail-at-end --show-version --threads 1C
  MVN_SKIP_CI_PLUGINS: -DskipFormatting -Denforcer.skip -Djacoco.skip -Dmdep.analyze.skip
  JAVA_VERSION: 17

jobs:

  continous-integration:
    # https://wiki.one.int.sap/wiki/display/DevFw/SUGAR
    runs-on: ubuntu-latest
    steps:

      - name: "Checkout repository"
        uses: actions/checkout@v4
        with:
          fetch-depth: 1
          ref: ${{ github.event.pull_request.head.ref }}

      - name: "Setup java"
        uses: actions/setup-java@v4
        with:
          distribution: "temurin"
          java-version: ${{ env.JAVA_VERSION }}
          cache: 'maven'

      - name: "REUSE Compliance Check"
        uses: fsfe/reuse-action@v4

      - name: "Format code"
        run: |
          MVN_ARGS="${{ env.MVN_MULTI_THREADED_ARGS }} spotless:apply"
          mvn $MVN_ARGS

      - name: "Commit formatting changes if necessary"
        run: |
          diff=`git diff`
          if [ ! -z "$diff" ]; then
            git config --global user.email "cloudsdk@sap.com"
            git config --global user.name "SAP Cloud SDK Bot"
            git commit -am "Formatting"
            git push
          fi

      - name: "Build SDK"
        run: |
          MVN_ARGS="${{ env.MVN_MULTI_THREADED_ARGS }} clean install -DskipTests -DskipFormatting"
          mvn $MVN_ARGS

      - name: "Verify Local Changes"
        run: |
          CHANGED_FILES="$(git --no-pager diff --name-only)"
          if [[ ! -z "$CHANGED_FILES" ]]; then
              echo "There are local changes in the following files:"
              echo "$CHANGED_FILES"
              echo "Printing the git diff:"
              git --no-pager diff
              exit 1
          fi

      - name: "Checkstyle"
        run: |
          MVN_ARGS="${{ env.MVN_MULTI_THREADED_ARGS }} ${{ env.MVN_SKIP_CI_PLUGINS }} -P!build-test-modules org.apache.maven.plugins:maven-checkstyle-plugin:checkstyle"
          mvn $MVN_ARGS
          python .pipeline/scripts/print-checkstyle.py

      - name: "PMD"
        run: |
          MVN_ARGS="${{ env.MVN_MULTI_THREADED_ARGS }} ${{ env.MVN_SKIP_CI_PLUGINS }} org.apache.maven.plugins:maven-pmd-plugin:pmd"
          mvn $MVN_ARGS
          python .pipeline/scripts/print-pmd.py

      - name: "Spotbugs"
        run: |
          MVN_ARGS="${{ env.MVN_MULTI_THREADED_ARGS }} ${{ env.MVN_SKIP_CI_PLUGINS }} com.github.spotbugs:spotbugs-maven-plugin:spotbugs"
          mvn $MVN_ARGS
          python .pipeline/scripts/print-spotbugs.py

      - name: "Run Unit Tests"
        run: |
          MVN_ARGS="${{ env.MVN_MULTI_THREADED_ARGS }} org.jacoco:jacoco-maven-plugin:prepare-agent surefire:test org.jacoco:jacoco-maven-plugin:report"
          mvn $MVN_ARGS

      - name: "Coverage Report"
        run: python .pipeline/scripts/print-coverage.py --jacoco-report-pattern "**/target/site/jacoco/jacoco.csv"

      - name: "Slack Notification"
        ## currently disabled, as there are no main builds yet
        if: false
        uses: slackapi/slack-github-action@v1.26.0
        with:
          payload: |
            {
              "text": "🚨 Main Build Failed! 😬 Please inspect & fix by clicking <https://github.com/SAP/ai-sdk-java/actions/runs/${{ github.run_id }}|here>"
            }
        env:
          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK }}
          SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK
      #TODO: Blackduck and security rating steps