ubuntu.yml

name: Ubuntu

on: [push, pull_request]

jobs:
  build:

    runs-on: ${{ matrix.os }}

    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest]
        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]

    steps:
    - uses: actions/checkout@v3

    - name: Set revision
      run: |
        # Set environment variable with the latest revision hash.
        echo "GIT_DOWNWARD_REV=`git ls-remote --exit-code --quiet https://github.com/aibasel/downward.git HEAD | cut -f1`" >> $GITHUB_ENV

    # Compile each Fast Downward revision only once and cache the results.
    - name: Cache revisions
      id: cache-revisions
      uses: actions/cache@v3
      with:
        path: revision-cache
        key: ${{ matrix.os }}-revision-cache-${{ env.GIT_DOWNWARD_REV }}

    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v4
      with:
        python-version: ${{ matrix.python-version }}

    - name: Show environment
      run: |
        python --version
        python3 -c "import multiprocessing as m; print('CPUs:', m.cpu_count())"

    - name: Install tox
      run: |
        python -m pip install --upgrade pip tox

    - name: Check style
      if: matrix.os == 'ubuntu-latest' && matrix.python-version == '3.10'
      run: |
        tox -e docs,style

    - name: Set up directory for dependencies
      run: |
        mkdir ../deps
        pushd ../deps
        # Add directory to PATH.
        echo "$(pwd)" >> $GITHUB_PATH

    - name: Compile FF
      working-directory: ../deps
      run: |
        # GCC 10 fails to compile FF 2.3, so we use a precompiled FF binary.
        # sudo apt-get -y install g++ make flex bison
        # wget http://fai.cs.uni-saarland.de/hoffmann/ff/FF-v2.3.tgz
        # tar -xzvf FF-v2.3.tgz
        # pushd FF-v2.3/
        # make -j
        # cp ff ../
        # popd
        # rm -r FF-v2.3/ FF-v2.3.tgz
        wget 'https://github.com/hectorpal/fast-forward-linux-binaries/raw/main/ff.gz'
        gunzip ff.gz
        chmod +x ff

    - name: Compile runsolver
      working-directory: ../deps
      run: |
        sudo apt-get -y install g++ make
        git clone https://github.com/jendrikseipp/runsolver.git runsolver-dir
        pushd runsolver-dir/src
        make -j
        cp runsolver ../..
        popd
        rm -r runsolver-dir/

    - name: Install Apptainer
      working-directory: ../deps
      run: |
        sudo add-apt-repository -y ppa:apptainer/ppa
        sudo apt-get update
        sudo apt-get install -y apptainer

    - name: Compile VAL
      working-directory: ../deps
      run: |
        sudo apt-get -y install g++ make flex bison
        git clone https://github.com/KCL-Planning/VAL.git
        pushd VAL
        git checkout a5565396007eee73ac36527fbf904142b3077c74
        make clean  # Remove old build artifacts and binaries.
        sed -i 's/-Werror //g' Makefile  # Ignore warnings.
        make -j
        mv validate ../
        popd
        rm -r VAL

    - name: Clone benchmarks
      working-directory: ../deps
      run: |
        export DOWNWARD_BENCHMARKS=`realpath downward-benchmarks`
        git clone --depth 1 https://github.com/aibasel/downward-benchmarks ${DOWNWARD_BENCHMARKS}
        echo "DOWNWARD_BENCHMARKS=${DOWNWARD_BENCHMARKS}" >> $GITHUB_ENV

    - name: Clone Fast Downward Git
      working-directory: ../deps
      run: |
        export DOWNWARD_REPO=`realpath fast-downward-git`
        git clone --depth 1 https://github.com/aibasel/downward.git ${DOWNWARD_REPO}
        echo "DOWNWARD_REPO=${DOWNWARD_REPO}" >> $GITHUB_ENV

    - name: Download example Singularity image
      working-directory: ../deps
      run: |
        wget --no-verbose https://ai.dmi.unibas.ch/_tmp_files/seipp/lama-first.img -O fd1906-lama-first.img
        export SINGULARITY_IMAGES=`realpath .`
        echo "SINGULARITY_IMAGES=${SINGULARITY_IMAGES}" >> $GITHUB_ENV

    - name: Run tests
      run: |
        # Updating the installed packages takes very long, so we don't do it.
        # sudo apt-get update && sudo apt-get -y upgrade

        export DOWNWARD_REVISION_CACHE="${GITHUB_WORKSPACE}/revision-cache"
        echo CACHE: ${DOWNWARD_REVISION_CACHE}

        export DOWNWARD_REPO=${DOWNWARD_REPO}
        time tox -e py,downward,ff,singularity

    - name: Test installation with pip
      run: |
        pip install .
        pushd /tmp
        python -c "import lab"
        popd
        pip uninstall -y lab