eb_command.yml

# documentation: https://help.github.com/en/articles/workflow-syntax-for-github-actions
name: Tests for the 'eb' command
on: [push, pull_request]

permissions:
  contents: read # to fetch code (actions/checkout)

concurrency:
  group: ${{format('{0}:{1}:{2}', github.repository, github.ref, github.workflow)}}
  cancel-in-progress: true

jobs:
  test-eb:
    runs-on: ubuntu-20.04
    strategy:
      matrix:
        python: [3.6, 3.7, 3.8, 3.9, '3.10', '3.11']
      fail-fast: false
    steps:
    - uses: actions/checkout@v3

    - name: set up Python
      uses: actions/setup-python@v4
      with:
        python-version: ${{matrix.python}}
        architecture: x64

    - name: install OS & Python packages
      run: |
        # check Python version
        python -V
        # update to latest pip, check version
        pip install --upgrade pip
        pip --version

        # for modules tool
        APT_PKGS="lua5.2 liblua5.2-dev lua-filesystem lua-posix tcl tcl-dev"

        # Avoid apt-get update, as we don't really need it,
        # and it does more harm than good (it's fairly expensive, and it results in flaky test runs)
        if ! sudo apt-get install $APT_PKGS; then
          # Try to update cache, then try again to resolve 404s of old packages
          sudo apt-get update -yqq || true
          sudo apt-get install $APT_PKGS
        fi

        # fix for lua-posix packaging issue, see https://bugs.launchpad.net/ubuntu/+source/lua-posix/+bug/1752082
        # needed for Ubuntu 18.04, but not for Ubuntu 20.04, so skipping symlinking if posix.so already exists
        if [ ! -e /usr/lib/x86_64-linux-gnu/lua/5.2/posix.so ] ; then
            sudo ln -s /usr/lib/x86_64-linux-gnu/lua/5.2/posix_c.so /usr/lib/x86_64-linux-gnu/lua/5.2/posix.so
        fi

    - name: install modules tool
      run: |
          # avoid downloading modules tool sources into easybuild-framework dir
          cd $HOME
          export INSTALL_DEP=$GITHUB_WORKSPACE/easybuild/scripts/install_eb_dep.sh
          # install Lmod
          source $INSTALL_DEP Lmod-8.7.6 $HOME
          # changes in environment are not passed to other steps, so need to create files...
          echo $MOD_INIT > mod_init
          echo $PATH > path
          if [ ! -z $MODULESHOME ]; then echo $MODULESHOME > moduleshome; fi

    - name: install EasyBuild framework
      run: |
          # install from source distribution tarball, to test release as published on PyPI
          python setup.py sdist
          ls dist
          export PREFIX=/tmp/$USER/$GITHUB_SHA
          pip install --prefix $PREFIX dist/easybuild[-_]framework*tar.gz

    - name: run tests for 'eb' command
      env:
        EB_VERBOSE: 1
      run: |
          # run tests *outside* of checked out easybuild-framework directory,
          # to ensure we're testing installed version (see previous step)
          cd $HOME
          # initialize environment for modules tool
          if [ -f $HOME/moduleshome ]; then export MODULESHOME=$(cat $HOME/moduleshome); fi
          source $(cat $HOME/mod_init); type module
          # make sure 'eb' is available via $PATH, and that $PYTHONPATH is set (some tests expect that);
          # also pick up changes to $PATH set by sourcing $MOD_INIT
          export PREFIX=/tmp/$USER/$GITHUB_SHA
          export PATH=$PREFIX/bin:$(cat $HOME/path)
          export PYTHONPATH=$PREFIX/lib/python${{matrix.python}}/site-packages:$PYTHONPATH
          # run --version, capture (verbose) output
          eb --version | tee eb_version.out 2>&1
          # determine active Python version
          pymajver=$(python -c 'import sys; print(sys.version_info[0])')
          pymajminver=$(python -c 'import sys; print(".".join(str(x) for x in sys.version_info[:2]))')
          # check patterns in verbose output
          for pattern in "^>> Considering .python.\.\.\." "^>> .python. version: ${pymajminver}\.[0-9]\+, which matches Python ${pymajver} version requirement" "^>> 'python' is able to import 'easybuild.framework', so retaining it" "^>> Selected Python command: python \(.*/bin/python\)" "^This is EasyBuild 4\.[0-9.]\+"; do
              echo "Looking for pattern \"${pattern}\" in eb_version.out..."
              grep "$pattern" eb_version.out
          done
          if grep -q "Considering ''" eb_version.out; then
              echo '`eb` did wrongly consider an empty command'
              false
          fi
          # also check when specifying Python command via $EB_PYTHON
          for eb_python in "python${pymajver}" "python${pymajminver}"; do
              export EB_PYTHON="${eb_python}"
              eb --version | tee eb_version.out 2>&1
              for pattern in "^>> Considering .${eb_python}.\.\.\." "^>> .${eb_python}. version: ${pymajminver}\.[0-9]\+, which matches Python ${pymajver} version requirement" "^>> '${eb_python}' is able to import 'easybuild.framework', so retaining it" "^>> Selected Python command: ${eb_python} \(.*/bin/${eb_python}\)" "^This is EasyBuild 4\.[0-9.]\+"; do
                  echo "Looking for pattern \"${pattern}\" in eb_version.out..."
                  grep "$pattern" eb_version.out
              done
          done