ci.yml

name: CI

on:
  push:
    branches:
      - main
    tags:
      - 'v*.*.*'
  pull_request:
    branches:
      - main

concurrency:
  group: ${{github.workflow}} - ${{github.ref}}
  cancel-in-progress: true

env:
  GHCR_REGISTRY: ghcr.io
  DOCKER_HUB_REGISTRY: docker.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build:
    runs-on: ubuntu-24.04

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

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

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

      - name: Build with Gradle Wrapper
        run: |
          chmod +x ./gradlew
          ./gradlew build

      - name: Upload artifact
        uses: actions/upload-artifact@v4
        with:
          name: hoshizora-pics-artifact
          path: build
          retention-days: 1

  release:
    runs-on: ubuntu-24.04
    if: startsWith(github.ref, 'refs/tags/')
    needs: build
    permissions:
      contents: write

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

      - name: Download artifact
        uses: actions/download-artifact@v4
        with:
          name: hoshizora-pics-artifact
          path: build

      - name: Get Previous Release Tag
        run: |
          git fetch --tags --force
          previous_tag=$(git describe --tags --abbrev=0 $(git rev-list --tags --skip=1 --max-count=1))
          echo "previous_tag=$previous_tag" >> $GITHUB_ENV

      - name: Generate Changelog
        uses: heinrichreimer/action-github-changelog-generator@v2.3
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          output: CHANGELOG.md
          sinceTag: ${{ env.previous_tag }}
          stripGeneratorNotice: true
          headerLabel: "## Good things have arrived"

      - name: Release
        uses: softprops/action-gh-release@v2
        with:
          name: "Hoshizora-Pics ${{ github.ref_name }}"
          body_path: CHANGELOG.md
          files: build/*

  # https://docs.github.com/en/actions/use-cases-and-examples/publishing-packages/publishing-docker-images
  # https://docs.docker.com/build/ci/github-actions/multi-platform/
  # https://github.com/docker/build-push-action
  build-and-push-docker-image:
    runs-on: ubuntu-24.04
    needs: release
    permissions:
      packages: write
      attestations: write
      id-token: write

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

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Log in to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

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

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v5
        with:
          tags: |
            type=semver,pattern={{version}}
          images: |
            ${{ env.GHCR_REGISTRY }}/${{ env.IMAGE_NAME }}
            ${{ env.DOCKER_HUB_REGISTRY }}/${{ env.IMAGE_NAME }}

      - 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 }}
          platforms: linux/amd64,linux/arm64

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