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:

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: Setup Java and Maven
        uses: actions/setup-java@v4
        with:
          distribution: 'temurin'
          java-version: 21
          cache: 'maven'
      - name: Build with Maven verify
        run: ./mvnw -B verify
  build_main_branch:
    name: Build main branch
    runs-on: ubuntu-latest
    if: "github.ref == 'refs/heads/main'"
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Setup Java and Maven
        uses: actions/setup-java@v4
        with:
          distribution: 'temurin'
          java-version: 21
          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="$(./mvnw help:evaluate -Dexpression=revision -q -DforceStdout)"
          echo "MAVEN_POM_REVISION_VERSION=$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 $MAVEN_POM_REVISION_VERSION is already tagged. Skipping the build and deployment!"
            exit 0
          else
            DEPLOY_RELEASE=true
            echo "DEPLOY_RELEASE=$DEPLOY_RELEASE" >> $GITHUB_ENV
          fi
      - name: Build with Maven deploy
        if: ${{ env.DEPLOY_RELEASE  == 'true' }}
        run: ./mvnw -Dchangelist= -B deploy
        env:
          MAVEN_SERVER_USERNAME: ${{ secrets.MAVEN_SERVER_USERNAME }}
          MAVEN_SERVER_PASSWORD: ${{ secrets.MAVEN_SERVER_PASSWORD }}
      - name: Create new git tag
        uses: rickstaa/action-create-tag@v1
        if: ${{ env.DEPLOY_RELEASE  == 'true' }}
        with:
          tag: ${{ env.MAVEN_POM_REVISION_VERSION }}
          message: Release ${{ env.MAVEN_POM_REVISION_VERSION }}