build.yml

name: Build
on:
  push:
    branches:
      - '**'
    tags-ignore:
      - '**'
  pull_request:
  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:
  # Allows reuse of this workflow as a generic "Java build with Maven that publishes to main on merge"
  workflow_call:
    inputs:
      javadoc-project-name:
        description: Project subdirectory to upload the JavaDoc to in Google Cloud Storage.
        required: true
        type: string
    outputs:
      release-version:
        description: The version of the new release built on the main branch.
        value: ${{ jobs.build_main_branch.outputs.release-version }}

jobs:
  build_feature_branch:
    name: Build feature branch
    runs-on: ubuntu-latest
    if: github.ref != 'refs/heads/main'
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          submodules: true
      - name: Determine Java version
        uses: joshlong/java-version-export-github-action@v28
        id: determine-java-version
      - name: Setup Java and Maven
        uses: actions/setup-java@v4
        with:
          distribution: temurin
          java-version: ${{ steps.determine-java-version.outputs.java_major_version }}
          cache: maven
      - name: Build with Maven verify
        run: |
          ./mvnw --batch-mode verify javadoc:javadoc javadoc:aggregate
  build_main_branch:
    name: Build main branch
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main'
    outputs:
      release-version: ${{ steps.set-version.outputs.release-version }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          submodules: true
      - name: Determine Java version
        uses: joshlong/java-version-export-github-action@v28
        id: determine-java-version
      - name: Setup Java and Maven
        uses: actions/setup-java@v4
        with:
          distribution: temurin
          java-version: ${{ steps.determine-java-version.outputs.java_major_version }}
          cache: 'maven'
          server-id: reload
          server-username: MAVEN_SERVER_USERNAME
          server-password: MAVEN_SERVER_PASSWORD
      - name: Read revision version from pom.xml
        shell: bash
        run: |
          MAVEN_POM_REVISION_VERSION="$(./mvnw --batch-mode help:evaluate -Dexpression=revision -q -DforceStdout)"
          echo "MAVEN_POM_REVISION_VERSION=$MAVEN_POM_REVISION_VERSION" >> $GITHUB_ENV
      - name: Check if revision is already tagged
        shell: bash
        run: |
          if git tag -l $MAVEN_POM_REVISION_VERSION | grep -q $MAVEN_POM_REVISION_VERSION; then
            echo "Revision $MAVEN_POM_REVISION_VERSION is already tagged. Skipping deployment."
            exit 0
          else
            DEPLOY_RELEASE=true
            echo "DEPLOY_RELEASE=$DEPLOY_RELEASE" >> $GITHUB_ENV
          fi

      - name: Build merged feature without releasing it
        if: env.DEPLOY_RELEASE  != 'true'
        run: |
          ./mvnw -Dchangelist= --batch-mode verify -DstagingDirectory="${GITHUB_WORKSPACE}/target/latest" site:site site:stage
      - name: Build new release
        if: env.DEPLOY_RELEASE  == 'true'
        run: |
          ./mvnw -Dchangelist= --batch-mode verify -DstagingDirectory="${GITHUB_WORKSPACE}/target/latest" site:site site:stage
          test -d "${GITHUB_WORKSPACE}/target/latest"
          rm -rf -- "${GITHUB_WORKSPACE}/target/${MAVEN_POM_REVISION_VERSION}" || :
          cp --recursive --verbose -- "${GITHUB_WORKSPACE}/target/latest" "${GITHUB_WORKSPACE}/target/${MAVEN_POM_REVISION_VERSION}"
      - name: Deploy new release
        if: env.DEPLOY_RELEASE  == 'true'
        env:
          MAVEN_SERVER_USERNAME: ${{ secrets.MAVEN_SERVER_USERNAME }}
          MAVEN_SERVER_PASSWORD: ${{ secrets.MAVEN_SERVER_PASSWORD }}
        run: |
          ./mvnw --batch-mode deploy -Dchangelist= -DskipTests=true -Dcheckstyle.skip=true -Dpmd.skip=true -Dspotbugs.skip=true
      - name: Create new git tag
        if: env.DEPLOY_RELEASE  == 'true'
        uses: rickstaa/action-create-tag@v1
        with:
          tag: ${{ env.MAVEN_POM_REVISION_VERSION }}
          message: Release ${{ env.MAVEN_POM_REVISION_VERSION }}
      - name: Set version output
        id: set-version
        if: env.DEPLOY_RELEASE  == 'true'
        run: echo "release-version=${MAVEN_POM_REVISION_VERSION}" >> $GITHUB_OUTPUT

      - name: Authenticate with Google Cloud
        uses: google-github-actions/auth@v2
        with:
          credentials_json: ${{ secrets.CLOUDBUILD_COMMON_GCP_KEY }}
      - name: Upload latest JavaDoc copy to Google Cloud Storage
        uses: google-github-actions/upload-cloud-storage@v2
        with:
          path: target/latest
          destination: resilient-reload-javadoc/${{ inputs.javadoc-project-name || 'MavenSetup' }}
          process_gcloudignore: false
      - name: Upload versioned JavaDoc to Google Cloud Storage
        if: env.DEPLOY_RELEASE  == 'true'
        uses: google-github-actions/upload-cloud-storage@v2
        with:
          path: target/${{ env.MAVEN_POM_REVISION_VERSION }}
          destination: resilient-reload-javadoc/${{ inputs.javadoc-project-name || 'MavenSetup' }}
          process_gcloudignore: false