main.yaml

name: CI

on:
  push:
    paths-ignore:
      - 'docs/**'
    branches:
      - main
  pull_request:
    paths-ignore:
      - 'docs/**'
    branches:
      - '*'
  workflow_call:
    inputs:
      build_multiarch:
        default: false
        required: true
        type: boolean

jobs:
  test-containers:
    runs-on: ubuntu-24.04
    steps:
    - uses: actions/checkout@v4
    
    - name: Free up disk space
      #if: ${{ inputs.build_multiarch }}
      shell: bash
      # workaround: https://github.com/jlumbroso/free-disk-space/issues/9
      # copied from https://github.com/hirnidrin/free-disk-space/blob/4bacba7c412c8ace26b87b5b79977da05137e69d/action.yml
      run: |
        # ======
        # MACROS
        # ======
  
        # macro to print a line of equals
        # (silly but works)
        printSeparationLine() {
          str=${1:=}
          num=${2:-80}
          counter=1
          output=""
          while [ $counter -le $num ]
          do
             output="${output}${str}"
             counter=$((counter+1))
          done
          echo "${output}"
        }
  
        # macro to compute available space
        # REF: https://unix.stackexchange.com/a/42049/60849
        # REF: https://stackoverflow.com/a/450821/408734
        getAvailableSpace() { echo $(df -a $1 | awk 'NR > 1 {avail+=$4} END {print avail}'); }
  
        # macro to make Kb human readable (assume the input is Kb)
        # REF: https://unix.stackexchange.com/a/44087/60849
        formatByteCount() { echo $(numfmt --to=iec-i --suffix=B --padding=7 $1'000'); }
  
        # macro to output saved space
        printSavedSpace() {
          saved=${1}
          title=${2:-}
  
          echo ""
          printSeparationLine '*' 80
          if [ ! -z "${title}" ]; then
            echo "=> ${title}: Saved $(formatByteCount $saved)"
          else
            echo "=> Saved $(formatByteCount $saved)"
          fi
          printSeparationLine '*' 80
          echo ""
        }
  
        # macro to print output of dh with caption
        printDH() {
          caption=${1:-}
  
          printSeparationLine '=' 80
          echo "${caption}"
          echo ""
          echo "$ dh -h /"
          echo ""
          df -h /
          echo "$ dh -a /"
          echo ""
          df -a /
          echo "$ dh -a"
          echo ""
          df -a
          printSeparationLine '=' 80
        }

        # ======
        # SCRIPT
        # ======
  
        # Display initial disk space stats
  
        AVAILABLE_INITIAL=$(getAvailableSpace)
        AVAILABLE_ROOT_INITIAL=$(getAvailableSpace '/')
  
        printDH "BEFORE CLEAN-UP:"
        echo ""
  
        # Remove Android library
        BEFORE=$(getAvailableSpace)

        sudo rm -rf /usr/local/lib/android

        AFTER=$(getAvailableSpace)
        SAVED=$((AFTER-BEFORE))
        printSavedSpace $SAVED "Android library"
  
        BEFORE=$(getAvailableSpace)

        # https://github.community/t/bigger-github-hosted-runners-disk-space/17267/11
        sudo rm -rf /usr/share/dotnet

        AFTER=$(getAvailableSpace)
        SAVED=$((AFTER-BEFORE))
        printSavedSpace $SAVED ".NET runtime"
  
        BEFORE=$(getAvailableSpace)

        sudo rm -rf /opt/ghc

        AFTER=$(getAvailableSpace)
        SAVED=$((AFTER-BEFORE))
        printSavedSpace $SAVED "Haskell runtime"
  
        # Remove large packages
        # REF: https://github.com/apache/flink/blob/master/tools/azure-pipelines/free_disk_space.sh
  
        BEFORE=$(getAvailableSpace)

        sudo apt-get remove -y '^aspnetcore-.*'
        sudo apt-get remove -y '^dotnet-.*'
        sudo apt-get remove -y '^llvm-.*'
        sudo apt-get remove -y 'php.*'
        sudo apt-get remove -y '^mongodb-.*'
        sudo apt-get remove -y '^mysql-.*'
        sudo apt-get remove -y azure-cli google-chrome-stable firefox powershell mono-devel libgl1-mesa-dri
        sudo apt-get autoremove -y
        sudo apt-get clean

        AFTER=$(getAvailableSpace)
        SAVED=$((AFTER-BEFORE))
        printSavedSpace $SAVED "Large misc. packages"
  
        # Remove Docker images
        BEFORE=$(getAvailableSpace)

        sudo docker image prune --all --force

        AFTER=$(getAvailableSpace)
        SAVED=$((AFTER-BEFORE))
        printSavedSpace $SAVED "Docker images"

        # Remove Swap storage
        BEFORE=$(getAvailableSpace)

        sudo swapoff -a
        sudo rm -f /mnt/swapfile
        free -h

        AFTER=$(getAvailableSpace)
        SAVED=$((AFTER-BEFORE))
        printSavedSpace $SAVED "Swap storage"
  
        # Output saved space statistic
  
        AVAILABLE_END=$(getAvailableSpace)
        AVAILABLE_ROOT_END=$(getAvailableSpace '/')
  
        echo ""
        printDH "AFTER CLEAN-UP:"
  
        echo ""
        echo ""
  
        echo "/dev/root:"
        printSavedSpace $((AVAILABLE_ROOT_END - AVAILABLE_ROOT_INITIAL))
        echo "overall:"
        printSavedSpace $((AVAILABLE_END - AVAILABLE_INITIAL))

    - name: Install GraphViz
      run: sudo apt-get install graphviz -y

    - name: Set up JDK 17
      uses: actions/setup-java@v4
      with:
        java-version: 17
        distribution: temurin

    - name: Install Task
      uses: arduino/setup-task@v2
      with:
        version: 3.x
        repo-token: ${{ secrets.GITHUB_TOKEN }}

    - name: Build Java server
      run: task mavenBuild

    - name: Set up QEMU
      if: ${{ inputs.build_multiarch }}
      uses: docker/setup-qemu-action@v3

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v3
      with:
        version: 'v0.19.3'
        buildkitd-config-inline: |
          [worker.oci]
            max-parallelism = 2

    - name: Cache Docker layers
      uses: actions/cache@v4
      with:
        path: /tmp/.buildx-cache
        key: ${{ runner.os }}-buildx-${{ github.sha }}
        restore-keys: |
          ${{ runner.os }}-buildx-

    - name: Build container images
      run: task dockerBuildImages
      env:
        BUILD_MULTIARCH: ${{ inputs.build_multiarch }}
        CACHE_FROM: 'type=local,src=/tmp/.buildx-cache'
        CACHE_TO: 'type=local,dest=/tmp/.buildx-cache-new'

    - name: 'Setup Node.js 22'
      uses: actions/setup-node@v4
      with:
        node-version: 22

    - name: Install Node dependencies
      run: npm install

    - name: Run smoke tests
      run: task smokeTests

    # This ugly bit is necessary if you don't want your cache to grow forever until it hits GitHub's limit of 5GB.
    # 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