create-snapshot.yml

name: Create snapshot

on:
  pull_request:
    types: [opened, edited, synchronize, reopened, labeled]

env:
  JAVA_VERSION: '17'

jobs:
  # begin the snapshot verification before deployment
  check-version:
    if: ${{ contains(github.event.pull_request.labels.*.name, 'deploy-snapshot') }}
    runs-on: ubuntu-latest
    outputs:
      tag-version: ${{ steps.version.outputs.version }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Get version
        id: version
        run: echo "version=$(mvn -f pom.xml help:evaluate -Dexpression=project.version -q -DforceStdout)" >> $GITHUB_OUTPUT

      - name: Print version
        run: echo ${{ steps.version.outputs.version }}

      - uses: mukunku/tag-exists-action@v1.6.0
        name: Check tag existence
        id: check-tag-exists
        with:
          tag: ${{ steps.version.outputs.version }}          

      - name: Tag verification
        id: check-tag
        run: |
          if [[ "${{ steps.check-tag-exists.outputs.exists }}" == "true" ]]; then
            echo "Nothing to tag/release, the tag ${{ steps.version.outputs.version }} already exists"
            exit 1
          fi

          if ! [[ "${{ steps.version.outputs.version }}" =~ ^[0-9]+.[0-9]+.[0-9]+-SNAPSHOT$ ]]; then
            echo "Nothing to tag/release, the tag ${{ steps.version.outputs.version }} is not in correct format X.Y.Z-SNAPSHOT"
            exit 1
          fi

  test:
    needs: check-version
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Set up JDK
        uses: actions/setup-java@v4
        with:
          distribution: "temurin"
          java-version: ${{ env.JAVA_VERSION }}

      - name: Tests
        run: mvn test --no-transfer-progress

  create-tag:
    needs: [ test, check-version ]
    runs-on: ubuntu-latest
    steps:
      - name: Create tag
        uses: actions/github-script@v7
        with:
          script: |
            github.rest.git.createRef({
              owner: context.repo.owner,
              repo: context.repo.repo,
              ref: 'refs/tags/${{ needs.check-version.outputs.tag-version }}',
              sha: context.sha
            })

  deploy-maven-repo:
    needs: create-tag
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Set up Maven Central Repository
        uses: actions/setup-java@v4
        with:
          java-version: ${{ env.JAVA_VERSION }}
          distribution: adopt
          server-id: ossrh
          server-username: MAVEN_USERNAME
          server-password: MAVEN_PASSWORD
          gpg-private-key: ${{ secrets.MAVEN_GPG_PRIVATE_KEY }}
          gpg-passphrase: MAVEN_GPG_PASSPHRASE
      - name: Deploy with Maven
        run: mvn --batch-mode clean deploy -Pdeploy -DskipTests=true --no-transfer-progress
        env:
          MAVEN_USERNAME: ${{ secrets.OSSRH_USERNAME }}
          MAVEN_PASSWORD: ${{ secrets.OSSRH_TOKEN }}
          MAVEN_GPG_PASSPHRASE: ${{ secrets.MAVEN_GPG_PASSPHRASE }}

  deploy-comment:
    needs: [ deploy-maven-repo, check-version ]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/github-script@v7
        with:
          script: |
            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: '👋 Version ${{ needs.check-version.outputs.tag-version }} deployed on maven central repository'
            })

  remove-deploy-label:
    needs: deploy-comment
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions-ecosystem/action-remove-labels@v1
        with:
          labels: deploy-snapshot