main-branch.yml

name: Main Branch Workflow

on:
  push:
    branches:
      - main

jobs:
  build-jar:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set up JDK 21
        uses: actions/setup-java@v4
        with:
          java-version: '21'
          distribution: 'corretto'

      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@v4

      - name: Change wrapper permissions
        run: chmod +x ./gradlew

      - name: Build with Gradle Wrapper
        run: ./gradlew build

      - name: Extract project name from Gradle
        run: |
          PROJECT_NAME=$(./gradlew -q printProjectName)
          echo "PROJECT_NAME=${PROJECT_NAME}" >> $GITHUB_ENV

      - name: Extract version from Gradle
        run: |
          VERSION=$(./gradlew -q printProjectVersion)
          echo "VERSION=${VERSION}" >> $GITHUB_ENV

      - name: Upload jars
        uses: actions/upload-artifact@v4
        with:
          name: ${{ env.PROJECT_NAME }}-${{ env.VERSION }}
          path: build/libs/

  build-and-push-docker:
    runs-on: ubuntu-latest
    permissions:
      packages: write
      id-token: write
      attestations: write
    env:
      REGISTRY: ghcr.io
      IMAGE_NAME: ${{ github.repository }}
      BRANCH_NAME: ${{ github.head_ref || github.ref_name }}

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract version from file
        run: |
          VERSION=$(./gradlew -q printProjectVersion)
          echo "VERSION=${VERSION}" >> $GITHUB_ENV

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

      - name: Change wrapper permissions
        run: chmod +x ./gradlew

      - name: Build and push Docker image
        id: push
        uses: docker/build-push-action@v6
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}

      - name: Generate artifact attestation
        uses: actions/attest-build-provenance@v1
        with:
          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}}
          subject-digest: ${{ steps.push.outputs.digest }}
          push-to-registry: true