publish.yml

name: Docker

on:
  schedule:
    - cron: '0 3 * * *'
  workflow_dispatch:
  pull_request:
    paths-ignore: [ 'README.md' ]
  push:
    branches: [ 'master' ]
    tags: [ 'v*' ]

env:
  BUILDKIT_PROGRESS: plain
  GHCR: ghcr.io
  REGISTRY: ${{ vars.REGISTRY }}
  IMAGE_NAME: ${{ vars.IMAGE_NAME }}
  REPO: ${{ vars.REPO }}
  PUSH_IMAGE: ${{ github.event_name != 'pull_request' }}

jobs:
  build:
    runs-on: ubuntu-latest
    permissions:
      actions: write  # See https://docs.github.com/en/rest/actions/cache?apiVersion=2022-11-28#delete-a-github-actions-cache-for-a-repository-using-a-cache-id
      contents: read
      packages: write

    steps:
      # Checkout the repository
      - name: Checkout  🎯
        uses: actions/checkout@v3
        with:
          fetch-depth: 1

      # Get current year
      - name: Get current year 📅
        id: get-year
        shell: bash
        run: echo "year=$(date +%Y)" >> ${GITHUB_OUTPUT}

      # Restore cached repository
      # https://github.com/actions/cache/tree/main/restore
      - name: Restore cached repository 📦
        id: restore
        uses: actions/cache/restore@v3
        with:
          path: texlive/
          key: rsync-TL${{ steps.get-year.outputs.year }}-${{ github.sha }}
          restore-keys: |
            rsync-TL${{ steps.get-year.outputs.year }}-
            rsync-
          enableCrossOsArchive: true
          fail-on-cache-miss: false

      - name: Run rsync 📁
        shell: bash
        run: |
          echo "::group::rsync"
          script/rsync.sh ${{ env.REPO }} texlive/ --exclude-from=rsyncignore.txt
          echo "::endgroup::"

          echo "::group::Repository tree"
          tree -nh texlive/
          echo "::endgroup::"

      # Get the release version of the repository
      - name: Get TeX Live release version 🔖
        id: tl-release
        shell: bash
        run: echo "number=$(find ${{ github.workspace }}/texlive/ -name 'TEXLIVE_*' -print0 | sed -e s/[^0-9]//g)" >> ${GITHUB_OUTPUT}

      # Save repository to cache
      # https://github.com/actions/cache/tree/main/save
      - name: Save repository to cache 💾
        if: ${{ ! startsWith(github.ref, 'refs/tags/v') }}
        uses: actions/cache/save@v3
        with:
          path: texlive/
          key: rsync-TL${{ steps.tl-release.outputs.number }}-${{ github.sha }}
          enableCrossOsArchive: true

      # Workaround: https://github.com/actions/cache/blob/main/tips-and-workarounds.md#force-deletion-of-caches-overriding-default-cache-eviction-policy
      - name: Delete old repo cache 🗑️
        if: ${{ steps.restore.outputs.cache-hit }}
        shell: bash
        run: |
          gh extension install actions/gh-actions-cache

          [ $(gh actions-cache list -R ${{ github.repository }} -B ${{ github.ref }} --key rsync- | wc -l) -lt 2 ] && exit 0
          gh actions-cache delete ${{ steps.restore.outputs.cache-matched-key }} -R ${{ github.repository }} --confirm
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      # Add support for more platforms with QEMU
      # https://github.com/docker/setup-qemu-action
      - name: Set up QEMU 💻
        uses: docker/setup-qemu-action@v2

      # Add support for Buildx
      # https://github.com/docker/setup-buildx-action
      - name: Setup buildx 🔧
        uses: docker/setup-buildx-action@v2

      # Extract metadata (tags, labels)
      # https://github.com/docker/metadata-action
      - name: Extract metadata 🔍
        id: meta
        uses: docker/metadata-action@v4
        with:
          images: |
            ${{ env.GHCR }}/${{ github.repository }}
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          bake-target: metadata-action-bullseye-full
          flavor: |
            latest=auto
            prefix=TL${{ steps.tl-release.outputs.number }}-bullseye-full-,onlatest=false
          tags: |
            type=schedule,pattern=nightly
            type=semver,pattern=v{{version}}
            type=semver,pattern=v{{major}}.{{minor}}
            type=semver,pattern=v{{major}},enable=${{ !startsWith(github.ref, 'refs/tags/v0.') }}
            type=sha,prefix=TL${{ steps.tl-release.outputs.number }}-bullseye-full-,format=short
          labels: |
            org.opencontainers.image.source=${{ github.event.repository.clone_url }}

      # Read platforms as CSV from bake file
      - name: Read platforms from bake file 🔍
        id: get-platforms
        shell: bash
        run: echo "platform=$(docker buildx bake -f docker-bake.hcl --print _platforms | jq -cr '.target._platforms.platforms | @csv' | tr -d '"')" >> ${GITHUB_OUTPUT}

      # Login to GitHub registry
      # https://github.com/docker/login-action
      - name: Log into GitHub registry 📇
        uses: docker/login-action@v2
        with:
          registry: ${{ env.GHCR }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      # Login to another registry
      # https://github.com/docker/login-action
      - name: Log into ${{ env.REGISTRY }} 📇
        if: ${{ github.event_name != 'pull_request' }}
        uses: docker/login-action@v2
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ secrets.REGISTRY_USERNAME }}
          password: ${{ secrets.REGISTRY_PASSWORD }}

      # Free up disk space
      # Workaround: actions/runner-images#2840
      - name: Free up disk space 🗑️
        # Since this step is not critical as long as the space is freed up, we can ignore errors
        continue-on-error: true
        shell: bash
        run: |
          echo "::group::Current disk space usage"
          echo "Listing 100 largest packages"
          dpkg-query -Wf '${Installed-Size}\t${Package}\n' | sort -n | tail -n 100
          df -h
          echo "::endgroup::"

          echo "::group::Purging apt packages"
          echo "Removing large packages"
          sudo apt purge -qy \
            '^dotnet-.*' '^mono.*' \
            '^llvm-.*' '^libllvm.*' '^clang-.*' '^libclang.*' \
            '^gfortran-.*' \
            '^mysql.*' '^postgresql.*' '^mongodb.*'

          sudo apt purge -qy \
            azure-cli \
            microsoft-edge-stable \
            google-chrome-stable \
            firefox \
            powershell \
            nginx \
            libgl1-mesa-dri
          sudo apt autoremove -qy
          sudo apt clean -qy
          df -h
          echo "::endgroup::"

          echo "Removing large directories..."
          sudo rm -rf \
            ${AGENT_TOOLSDIRECTORY} \
            /usr/share/dotnet \
            /usr/local/graalvm/ \
            /usr/local/.ghcup/ \
            /usr/local/lib/android \
            /usr/local/lib/node_modules \
            /usr/local/share/chromium \
            /usr/local/share/edge_driver \
            /usr/local/share/powershell \
            /usr/local/share/vcpkg

          df -h
          docker system df

      # Build Docker image with Bake
      # https://github.com/docker/bake-action
      - name: Build / Push image 🐳
        uses: docker/bake-action@v2
        with:
          files: |
            docker-bake.hcl
            ${{ steps.meta.outputs.bake-file }}
          set: |
            *.cache-to=type=registry,mode=max,ref=${{ env.GHCR }}/${{ github.repository }}:buildcache,oci-mediatypes=true
            *.cache-from=type=registry,ref=${{ env.GHCR }}/${{ github.repository }}:buildcache
            *.platform=${{ steps.get-platforms.outputs.platform }}
        env:
          PUSH: ${{ fromJson(env.PUSH_IMAGE) }}

      # Cleanup repository
      - name: Cleanup 🧹
        if: ${{ ! fromJson(env.PUSH_IMAGE) }}
        shell: bash
        run: |
          echo "::group::Current disk"
          df -h
          tree -nhL 2
          echo "::endgroup::"

          rm -rf texlive
          df -h

      # Upload artifacts
      # https://github.com/actions/upload-artifact
      - name: Upload artifacts 📚
        if: ${{ ! fromJson(env.PUSH_IMAGE) }}
        uses: actions/upload-artifact@v3
        with:
          name: TL${{ steps.tl-release.outputs.number }}
          path: texlive.oci
          if-no-files-found: error