build-image.yml

name: Build Container Image

on:
  push:
    paths:
      - 'utils/build-paper.sh'
      - 'health.sh'
      - 'utils/download-mc-monitor.sh'
      - 'entrypoint.sh'
      - 'Dockerfile'
      - '.dockerignore'
      - '.env'
      - '.github/workflows/build-image.yml'
      - 'utils/java.sh'
      - 'utils/set-tags.sh'
      - 'test/startup.sh'
      - 'test/docker-compose.yml'
      - 'test/server.properties'

jobs:
  build_jar:
    runs-on: ubuntu-latest

    outputs:
      MINECRAFT_VERSION: ${{ steps.paper-commit.outputs.MINECRAFT_VERSION }}
      PAPER_VERSION: ${{ steps.paper-commit.outputs.PAPER_VERSION }}
      PAPER_COMMIT: ${{ steps.paper-commit.outputs.PAPER_COMMIT }}

    steps:
      - uses: actions/checkout@v3

      - name: Get Paper commit
        id: paper-commit
        shell: bash
        run: |
          source .env
          {
            echo "MINECRAFT_VERSION=${MINECRAFT_VERSION}"
            echo "PAPER_VERSION=${PAPER_VERSION}"
            echo "PAPER_COMMIT=${PAPER_COMMIT}"
          } >> "$GITHUB_OUTPUT"

      - name: cache paperclip
        id: cache-paperclip
        uses: actions/cache@v3
        with:
          path: Paper/paperclip-${{ steps.paper-commit.outputs.PAPER_COMMIT }}.jar
          key: paperclip-${{ runner.os }}-${{ steps.paper-commit.outputs.PAPER_COMMIT }}

      - name: clone Paper
        if: steps.cache-paperclip.outputs.cache-hit != 'true'
        uses: actions/checkout@v3
        with:
          repository: PaperMC/Paper
          path: Paper
          ref: ${{ steps.paper-commit.outputs.PAPER_COMMIT }}

      - name: setup Java
        if: steps.cache-paperclip.outputs.cache-hit != 'true'
        uses: actions/setup-java@v3.11.0
        with:
          distribution: 'temurin'
          java-version: '16.0.2'
          cache: 'gradle'

      - name: Build jar
        if: steps.cache-paperclip.outputs.cache-hit != 'true'
        run: |
          ls
          bash ./utils/build-paper.sh
          ls -lh Paper/paperclip-${{ steps.paper-commit.outputs.PAPER_COMMIT }}.jar
          file Paper/paperclip-${{ steps.paper-commit.outputs.PAPER_COMMIT }}.jar

      - name: Upload paperclip.jar as artifact
        uses: actions/upload-artifact@v3
        with:
          if-no-files-found: error
          name: paperclip-${{ steps.paper-commit.outputs.PAPER_COMMIT }}
          path: Paper/paperclip-${{ steps.paper-commit.outputs.PAPER_COMMIT }}.jar

  base_img_matrix:
    name: Generate Base Image matrix
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.set-matrix.outputs.matrix }}

    steps:
      - uses: actions/checkout@v3

      - name: Set Base Image matrix
        id: set-matrix
        run: |
          imgs=$(./utils/java.sh base-img | tr '\n' ' ')
          imgs=$(echo "${imgs}" | sed -e 's/ /, /g')
          {
            echo -n 'matrix=['
            echo -n ${imgs}
            echo ']'
          } >> "$GITHUB_OUTPUT"

  build_image:
    runs-on: ubuntu-latest
    needs: [build_jar, base_img_matrix]
    outputs:
      MINECRAFT_VERSION: ${{ needs.build_jar.outputs.MINECRAFT_VERSION }}
      PAPER_VERSION: ${{ needs.build_jar.outputs.PAPER_VERSION }}
      PAPER_COMMIT: ${{ needs.build_jar.outputs.PAPER_COMMIT }}
    strategy:
      matrix:
        base_img: ${{ fromJSON(needs.base_img_matrix.outputs.matrix) }}

    steps:
      - uses: actions/checkout@v3

      - name: clone Paper
        uses: actions/checkout@v3
        with:
          repository: PaperMC/Paper
          path: Paper
          ref: ${{ needs.build_jar.outputs.PAPER_COMMIT }}

      - name: download paperclip.jar from artifact
        uses: actions/download-artifact@v3
        with:
          name: paperclip-${{ needs.build_jar.outputs.PAPER_COMMIT }}
          path: paperclip-artifact

      - name: Rename downloaded artifact to Paper/paperclip.jar
        run: |
          mv "paperclip-artifact/paperclip-${{ needs.build_jar.outputs.PAPER_COMMIT }}.jar" Paper/paperclip.jar

      - name: jar exist check
        run: |
          ls Paper
          ls -lh Paper/paperclip.jar
          file Paper/paperclip.jar
          if [ -d Paper/paperclip.jar ]; then
            echo "Oh shit! This paperclip.jar is directory!"
            exit 1
          fi

      - name: Cache Docker Layers
        uses: actions/cache@v3
        with:
          path: /tmp/.buildx-cache
          key: ${{ runner.os }}-buildx-${{ github.sha }}
          restore-keys: |
            ${{ runner.os }}-buildx-

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v4.6.0
        with:
          images: ghcr.io/${{ github.repository }},sksat/${{ github.event.repository.name }}

      - name: Get base-image info
        id: img-info
        shell: bash
        run: |
          base=$(cut -d':' -f 1 <<<${{ matrix.base_img }})
          tag_digest=$(cut -d':' -f 2 <<<${{ matrix.base_img }})
          tag=$(cut -d'@' -f 1 <<<"${tag_digest}")
          digest=$(cut -d'@' -f 2 <<<"${tag_digest}")
          echo "base: $base"
          echo "tag: $tag"
          echo "digest: $digest"

          jdk="openjdk"
          if [[ $base =~ 'eclipse-temurin' ]]; then
            jdk='temurin'
          else
            jdk="$base"
          fi

          echo "jdk=${jdk}, base=${tag}"
          {
            echo "jdk=${jdk}"
            echo "base=${tag}"
          } >> "$GITHUB_OUTPUT"

      - name: Set Tags
        id: tags
        shell: bash
        env:
          JDK: ${{ steps.img-info.outputs.jdk }}
          BASE_IMG: ${{ steps.img-info.outputs.base }}
        run: |
          tags=$(cat << EOS | ./utils/set-tags.sh
          ${{ steps.meta.outputs.tags }}
          EOS
          )
          echo "tags: ${tags}"
          {
            delim="$(openssl rand -hex 8)"
            echo "tags<<${delim}"
            echo "${tags}"
            echo "${delim}"
          } >> "${GITHUB_OUTPUT}"

      - name: Login to ghcr.io
        if: ${{ github.event_name }} != 'pull_request'
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Login to DockerHub
        if: ${{ github.event_name }} != 'pull_request'
        uses: docker/login-action@v2
        with:
          username: sksat
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Set up QEMU
        id: qemu
        uses: docker/setup-qemu-action@v2.2.0
        with:
          platforms: all

      - name: Set up Buildx
        id: buildx
        uses: docker/setup-buildx-action@v2
        with:
          # meantime solution from: https://github.com/docker/buildx/issues/834#issuecomment-965730742
          buildkitd-flags: --debug
          driver-opts: image=moby/buildkit:v0.9.1

      - name: Show available platforms
        run: echo ${{ steps.buildx.outputs.platforms }}

      - name: Build and Push
        uses: docker/build-push-action@v4
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          build-args: |
            "MINECRAFT_VERSION=${{ needs.build_jar.outputs.MINECRAFT_VERSION }}"
            "PAPER_VERSION=${{ needs.build_jar.outputs.PAPER_VERSION }}"
            "PAPER_COMMIT=${{ needs.build_jar.outputs.PAPER_COMMIT }}"
            "BASE_IMG=${{ matrix.base_img }}"
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.tags.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=local,src=/tmp/.buildx-cache
          cache-to: type=local,dest=/tmp/.buildx-cache-new

      # Temp fix
      # https://github.com/docker/build-push-action/issues/252
      # https://github.com/moby/buildkit/issues/1896
      - name: Move cache
        run: |
          rm -rf /tmp/.buildx-cache
          mv /tmp/.buildx-cache-new /tmp/.buildx-cache

  test:
    needs: build_image
    runs-on: ubuntu-latest
    strategy:
      matrix:
        jdk: ["openjdk", "temurin"]

    steps:
      - uses: actions/checkout@v3

      - name: Install dependencies
        run: |
          python --version
          python3 -m pip install mcstatus

      - name: startup test
        run: |
          ./test/startup.sh "${GITHUB_REF#refs/heads/}-${{ needs.build_image.outputs.MINECRAFT_VERSION }}-${{ matrix.jdk }}"