Tests.yaml

# Distributed under the MIT License.
# See LICENSE.txt for details.

# Continuous integration tests that pull requests are required to pass. This
# workflow can also be dispatched manually to tag and release versions.
name: Tests

# Set any defaults for the runs below.
# - use bash as the default shell since this is almost certainly what
#   is always expected. We use regular expressions in a few places
#   that rely on bash.
defaults:
  run:
    shell: bash

# Note that by default the jobs only run on the base repository, testing pull
# requests and merge commits. Enable GitHub Actions in your fork's repository
# settings to also run the tests on every push to one of your branches.
on:
  # We run all jobs when pull requests are opened, commits are pushed, or pull
  # requests are re-opened after being closed.
  # The jobs triggered by this event run on the base repository of the pull
  # request, so they have access to its caches.
  pull_request:
  # We run those jobs that require no information about a pull request (e.g.
  # unit tests) also on `push` events. This setup tests merge commits into
  # `develop` and also builds up caches on `develop` that can be re-used by PRs.
  # It also runs the jobs on forks if they have GitHub Actions enabled.
  push:
    branches-ignore:
      - gh-pages
  # Allow running the workflow manually to run tests and optionally release a
  # version on success (see the dev guide on "Automatic versioning")
  workflow_dispatch:
    inputs:
      release_version:
        description: >
          Enter a version name YYYY.MM.DD[.TWEAK] to create a release on success
        required: false
        default: ''
      timezone:
        description: >
          Timezone used for validating the version name. The release must be
          approved by the end of the day in the specified timezone. See
          /usr/share/zoneinfo for a list of possible values.
        required: false
        default: 'America/Los_Angeles'
      clear_ccache:
        description: >
          Enter 'yes' without quotes to clear ccache before running
        required: false
        default: ''
      container:
        description: >
          Container to use for builds
        required: false
        default: 'sxscollaboration/spectre:ci'
  # Allow running this workflow as a job in another workflow. This is used to
  # test a new Docker container before publishing it.
  workflow_call:
    inputs:
      container:
        description: >
          Container to use for builds
        required: false
        type: string
        default: 'sxscollaboration/spectre:ci'

# Cancel all other queued or in-progress runs of this workflow when it is
# scheduled, so repeated pushes to a branch or a PR don't block CI. Repeated
# pushes to 'develop' and 'release' are not canceled, so every merge commit is
# tested.
concurrency:
  group: ${{ github.ref }}
  cancel-in-progress: ${{ github.ref != 'refs/heads/develop'
    && github.ref != 'refs/heads/release' }}

jobs:
  # Make sure no commits are prefixed with `fixup` or similar keywords. See
  # `tools/CheckCommits.sh` for details.
  check_commits:
    name: Commits
    # Only run on pull requests since we don't check _all_ commits, but only
    # those that came after the PR's base ref.
    if: github.event_name == 'pull_request'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3
        with:
          fetch-depth: 0
      - name: Check commits
        # `CheckCommits.sh` tests against the local `develop` branch, so that's
        # where we fetch the pull-request's base-branch to. Typically, it is
        # the upstream `sxs-collaboration/spectre/develop` branch.
        run: >
          cd $GITHUB_WORKSPACE

          git remote add upstream
          https://github.com/${{ github.repository }}.git

          git remote -v

          git fetch upstream ${{ github.base_ref }}:develop

          ./tools/CheckCommits.sh

  # - Run simple textual checks over files in the repository, e.g. checking for
  #   a license, line length limits etc. See `tools/CheckFiles.sh` for details.
  # - Run format checker for python to make sure the code is formatted correctly
  # - Check the metadata are consistent
  check_files_and_formatting:
    name: Files and formatting
    runs-on: ubuntu-latest
    container:
      image: ${{ inputs.container || 'sxscollaboration/spectre:ci' }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3
        with:
          fetch-depth: 0
      # Work around https://github.com/actions/checkout/issues/760
      - name: Trust checkout
        run: |
          git config --global --add safe.directory $GITHUB_WORKSPACE
      # The action above checks out the `github.ref` by default, which points to
      # the merge commit with the target branch for pull-request events. For
      # this job we check out the pull-request HEAD instead. It makes
      # git-related issues easier to debug because the state matches the local
      # repository. It also prevents releases that happened since the
      # pull-request branch was last rebased from disrupting tests that involve
      # the latest release tag.
      - name: Checkout pull-request HEAD
        if: github.event_name == 'pull_request'
        run: |
          git checkout ${{ github.event.pull_request.head.sha }}
      # Some tests involve release tags, which may not have been pushed to
      # forks. Fetching them here.
      - name: Fetch upstream tags on forks
        if: github.repository != 'sxs-collaboration/spectre'
        run: |
          git fetch --tags https://github.com/sxs-collaboration/spectre
      - name: Install Python dependencies
        run: |
          pip3 install -r .github/scripts/requirements-release.txt
          pip3 install -r support/Python/dev_requirements.txt
      - name: Test tools
        run: |
          python3 -m unittest discover -p 'Test_CompileReleaseNotes.py' \
            tests.tools -v
      - name: Check Python formatting
        run: |
          cd $GITHUB_WORKSPACE
          echo "Using 'black' to check Python formatting..."
          black --check .
          echo "Using 'isort' to check Python formatting..."
          isort --check-only .
      - name: Test script
        run: |
          cd $GITHUB_WORKSPACE
          ./tools/CheckFiles.sh --test
      - name: Check files
        run: |
          cd $GITHUB_WORKSPACE
          ./tools/CheckFiles.sh
      - name: Check metadata
        run: |
          python3 tools/CheckMetadata.py
      - name: Check the metadata is consistent with the releases
        # No need to check this on forks. They would need to set a Zenodo token
        # for this test. Also disable on PRs because they don't have access to
        # the repo's secrets.
        if: >
          github.repository == 'sxs-collaboration/spectre'
            && github.event_name != 'pull_request'
        run: |
          python3 .github/scripts/Release.py prepare -vv --check-only \
            --zenodo-token ${{ secrets.ZENODO_READONLY_TOKEN }} \
            --github-token ${{ secrets.GITHUB_TOKEN }}
          python3 .github/scripts/Release.py publish -vv --check-only \
            --zenodo-token ${{ secrets.ZENODO_READONLY_TOKEN }} \
            --github-token ${{ secrets.GITHUB_TOKEN }} \
            --auto-publish
      - name: Check release notes
        run: |
          python3 tools/CompileReleaseNotes.py -vv -o release_notes.md \
            --github-token ${{ secrets.GITHUB_TOKEN }}
      - name: Upload release notes
        uses: actions/upload-artifact@v3
        with:
          name: release-notes
          path: release_notes.md
      # GitHub doesn't display artifacts until the workflow has completed, so we
      # print the release notes here to be able to review them before approving
      # a release
      - name: Print release notes
        run: |
          cat release_notes.md

  # Lint with clang-tidy. We check only code that changed relative to the
  # nearest common ancestor commit with `sxs-collaboration/spectre/develop`.
  clang_tidy:
    name: Clang-tidy
    if: >
      (github.event_name == 'pull_request'
       && github.repository == 'sxs-collaboration/spectre'
       && github.base_ref == 'develop')
      || github.ref != 'refs/heads/develop'
    runs-on: ubuntu-latest
    container:
      image: ${{ inputs.container || 'sxscollaboration/spectre:ci' }}
    strategy:
      matrix:
        build_type: [Debug, Release]
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3
        with:
          fetch-depth: 0
      # Work around https://github.com/actions/checkout/issues/760
      - name: Trust checkout
        run: |
          git config --global --add safe.directory $GITHUB_WORKSPACE
      - name: Configure annotations
        # Has to be accessible outside the container, see issue:
        # https://github.com/actions/toolkit/issues/305
        run: |
          cp .github/problem_matchers/ClangTidy.json "$HOME/"
          echo "::add-matcher::$HOME/ClangTidy.json"
      - name: Fetch sxs-collaboration/spectre/develop
        run: >
          cd $GITHUB_WORKSPACE

          git remote add upstream
          https://github.com/sxs-collaboration/spectre.git

          git remote -v

          git fetch upstream develop
      - name: Configure with cmake
        run: >
          mkdir build && cd build

          cmake
          -D CMAKE_C_COMPILER=clang
          -D CMAKE_CXX_COMPILER=clang++
          -D CMAKE_Fortran_COMPILER=gfortran
          -D CHARM_ROOT=${CHARM_ROOT}
          -D CMAKE_BUILD_TYPE=${{ matrix.build_type }}
          -D OVERRIDE_ARCH=x86-64
          -D USE_CCACHE=OFF
          -D USE_PCH=OFF
          -D DEBUG_SYMBOLS=OFF
          -D BUILD_PYTHON_BINDINGS=ON
          $GITHUB_WORKSPACE

          make -j2 module_All
      - name: Use new clang-tidy-diff
        # The clang-tidy-diff tool shipped with clang 14 doesn't report exit
        # codes, so we grab the version that does:
        # https://github.com/llvm/llvm-project/commit/4294bca5e4f6e6e8cfdbd9fbe8751c5e5415fd47
        run: |
          wget https://raw.githubusercontent.com/llvm/llvm-project/4294bca5e4f6e6e8cfdbd9fbe8751c5e5415fd47/clang-tools-extra/clang-tidy/tool/clang-tidy-diff.py
          chmod +x clang-tidy-diff.py
          mv clang-tidy-diff.py /usr/bin/clang-tidy-diff
      - name: Check clang-tidy
        run: >
          UPSTREAM_HASH=$(git merge-base HEAD upstream/develop)

          echo "Running clang-tidy relative to: $UPSTREAM_HASH\n"

          git diff -U0 $UPSTREAM_HASH |
            clang-tidy-diff -path build -p1 -use-color

  # Build the documentation and check for problems, then upload as a workflow
  # artifact and deploy to gh-pages.
  doc_check:
    name: Documentation
    needs: check_files_and_formatting
    runs-on: ubuntu-latest
    container:
      image: ${{ inputs.container || 'sxscollaboration/spectre:ci' }}
      env:
        CCACHE_DIR: /work/ccache
        CCACHE_READONLY: 1
        CCACHE_COMPILERCHECK: content
        CCACHE_BASEDIR: $GITHUB_WORKSPACE
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3
      # Work around https://github.com/actions/checkout/issues/760
      - name: Trust checkout
        run: |
          git config --global --add safe.directory $GITHUB_WORKSPACE
      # These can be installed directly in the Docker container instead
      - name: Install Python dependencies
        run: |
          python3 -m pip install -r support/Python/dev_requirements.txt
      - name: Download release notes
        uses: actions/download-artifact@v3
        id: release-notes
        with:
          name: release-notes
          path: /work
      - name: Append release notes to changelog
        # The sed command escapes @ symbols at beginning of words (GitHub
        # usernames) so they aren't interpreted as Doxygen commands
        run: |
          echo "" >> docs/Changelog.md
          cat /work/release_notes.md | sed 's/\(\B\@\)/\\\1/g' \
            >> docs/Changelog.md
      - name: Restore ccache
        uses: actions/cache/restore@v3
        id: restore-ccache
        env:
          CACHE_KEY_PREFIX: ccache-gcc-11-Debug-pch-ON
        with:
          path: /work/ccache
          key: "${{ env.CACHE_KEY_PREFIX }}-${{ github.run_id }}"
          restore-keys: |
            ${{ env.CACHE_KEY_PREFIX }}-
      # - Make sure to use the same build configuration as the unit tests from
      #   which we restore the ccache.
      # - Set `BUILD_TESTING=OFF` to test a CMake configuration with tests
      #   turned off.
      - name: Configure with cmake
        run: >
          mkdir build && cd build

          cmake
          -D CMAKE_C_COMPILER=gcc-11
          -D CMAKE_CXX_COMPILER=g++-11
          -D CMAKE_Fortran_COMPILER=gfortran-11
          -D CMAKE_CXX_FLAGS="-Werror"
          -D OVERRIDE_ARCH=x86-64
          -D CHARM_ROOT=${CHARM_ROOT}
          -D CMAKE_BUILD_TYPE=Debug
          -D DEBUG_SYMBOLS=OFF
          -D USE_PCH=ON
          -D USE_XSIMD=ON
          -D USE_CCACHE=ON
          -D ENABLE_OPENMP=ON
          -D BUILD_PYTHON_BINDINGS=ON
          -D BUILD_SHARED_LIBS=ON
          -D MEMORY_ALLOCATOR=SYSTEM
          -D BUILD_DOCS=ON
          -D BUILD_TESTING=OFF
          $GITHUB_WORKSPACE
      - name: Check documentation
        working-directory: build
        run: |
          make doc-check
      # Re-build with coverage information on pushes to develop for deployment
      # to gh-pages.
      - name: Build documentation with coverage
        if: github.event_name == 'push' && github.ref == 'refs/heads/develop'
        working-directory: build
        run: |
          make doc-coverage
      - name: Build Python docs
        working-directory: build
        run: |
          make py-docs
      # Upload as an artifact to make available to deployment and to PRs
      - name: Prepare for upload
        working-directory: build
        run: |
          tar -cf docs-html.tar --directory docs/html .
      - name: Upload documentation
        uses: actions/upload-artifact@v3
        with:
          name: docs-html
          path: build/docs-html.tar

  # Deploy to gh-pages on pushes to develop
  # See docs: https://github.com/actions/deploy-pages
  docs-deploy:
    name: Deploy documentation
    if: github.event_name == 'push' && github.ref == 'refs/heads/develop'
    needs: doc_check
    runs-on: ubuntu-latest
    permissions:
      pages: write
      id-token: write
    environment:
      name: github-pages
      url: ${{ steps.deploy.outputs.page_url }}
    steps:
      - uses: actions/deploy-pages@v2
        id: deploy
        with:
          artifact_name: docs-html

  # Build all test executables and run unit tests on a variety of compiler
  # configurations.
  unit_tests:
    name: Unit tests
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        # We have a sparse clang test configuration to reduce the amount of
        # GitHub cache space we use. GCC being the production compiler on
        # supercomputers means we need to thoroughly test it.
        compiler:
          - gcc-9
          - gcc-10
          - gcc-11
        build_type: [Debug, Release]
        include:
          # Generate code coverage report for a single build
          # Note: currently disabled because it exceeds the available disk space
          # - compiler: gcc-9
          #   build_type: Debug
          #   COVERAGE: ON
          #   TEST_TIMEOUT_FACTOR: 3
          # This configuration seems to run consistently slower than newer gcc
          # or clang builds, so we increase the test timeout a bit
          - compiler: gcc-10
            build_type: Debug
            TEST_TIMEOUT_FACTOR: 2
            # Test 3D rendering with ParaView
            test_3d_rendering: ON
            # Need Python version consistent with ParaView
            PYTHON_VERSION: "3.9"
          # Don't modify the gcc-11 Debug build so its cache can be reused for
          # the documentation build
          # - compiler: gcc-11
          #   build_type: Debug
          # Test with Python 3.8 so that we retain backwards compatibility. We
          # keep track of Python versions on supercomputers in this issue:
          # https://github.com/sxs-collaboration/spectre/issues/442
          - compiler: gcc-11
            build_type: Release
            PYTHON_VERSION: "3.8"
            # Disable building executable for this build for now because it
            # exceeds the available memory. See issue:
            # https://github.com/sxs-collaboration/spectre/issues/5472
            test_executables: OFF
          # Test building with static libraries. Do so with clang in release
          # mode because these builds use up little disk space compared to GCC
          # builds or clang Debug builds
          - compiler: clang-13
            build_type: Release
            BUILD_SHARED_LIBS: OFF
            use_xsimd: OFF
            MEMORY_ALLOCATOR: JEMALLOC
          # Add a test without PCH to the build matrix, which only builds core
          # libraries. Building all the tests without the PCH takes very long
          # and the most we would catch is a missing include of something that's
          # in the PCH.
          # Use this test also to build and test all input files with "normal"
          # or higher priority. The other configurations only test input files
          # with "high" priority to reduce the total build time.
          - compiler: clang-13
            build_type: Debug
            use_pch: OFF
            unit_tests: OFF
            input_file_tests_min_priority: "normal"
          # Test with ASAN
          - compiler: clang-14
            build_type: Debug
            # When building with ASAN we also need python bindings to be
            # disabled because otherwise we get link errors. See issue:
            # https://github.com/sxs-collaboration/spectre/issues/1890
            # So we are also using this build to test building without Python
            # bindings enabled.
            ASAN: ON
            BUILD_PYTHON_BINDINGS: OFF
            MEMORY_ALLOCATOR: JEMALLOC
          - compiler: clang-14
            build_type: Release
            # Test compatibility with oldest supported CMake version
            CMAKE_VERSION: "3.18.2"
            # Use an MPI version of Charm
            CHARM_ROOT: /work/charm_7_0_0/mpi-linux-x86_64-smp-clang
            # MPI running tests is a bit slower than multicore
            TEST_TIMEOUT_FACTOR: 3
            # Test `install` target with clang in Release mode because it uses
            # little disk space
            install: ON

    container:
      image: ${{ inputs.container || 'sxscollaboration/spectre:ci' }}
      env:
        # We run unit tests with the following compiler flags:
        # - `-Werror`: Treat warnings as error.
        # - `-march=x86-64`: Make sure we are building on a consistent
        #   architecture so caching works. This is necessary because GitHub
        #   may run the job on different hardware.
        CXXFLAGS: "-Werror"
        # We make sure to use a fixed absolute path for the ccache directory
        CCACHE_DIR: /work/ccache
        # Use a separate temp directory to conserve cache space on GitHub
        CCACHE_TEMPDIR: /work/ccache-tmp
        # Control the max cache size. We evict unused entries in a step below to
        # make sure that each build only uses what it need of this max size.
        CCACHE_MAXSIZE: "2G"
        # Control the compression level. The ccache docs recommend at most level
        # 5 to avoid slowing down compilation.
        CCACHE_COMPRESS: 1
        CCACHE_COMPRESSLEVEL: 5
        # We hash the content of the compiler rather than the location and mtime
        # to make sure the cache works across the different machines
        CCACHE_COMPILERCHECK: content
        # Rewrite absolute paths starting with this base dir to relative paths
        # before hashing. This is needed to reuse the cache for the formaline
        # test below, which builds in a different directory.
        CCACHE_BASEDIR: $GITHUB_WORKSPACE
        # These vars are to allow running charm with MPI as root inside the
        # container which arises from using the "--privileged" flag just below.
        OMPI_ALLOW_RUN_AS_ROOT: 1
        OMPI_ALLOW_RUN_AS_ROOT_CONFIRM: 1
      # See https://lists.cs.illinois.edu/lists/arc/charm/2018-10/msg00011.html
      # for why we need this
      options: --privileged
    steps:
      - name: Record start time
        id: start
        run: |
          echo "time=$(date +%s)" >> "$GITHUB_OUTPUT"
      - name: Checkout repository
        uses: actions/checkout@v3
      # Work around https://github.com/actions/checkout/issues/760
      - name: Trust checkout
        run: |
          git config --global --add safe.directory $GITHUB_WORKSPACE
      - uses: ./.github/actions/parse-compiler
        with:
          compiler: ${{ matrix.compiler }}
      # Install the selected compiler. We don't bundle all of them in the
      # container because they take up a lot of space.
      - name: Install compiler
        run: |
          apt-get update -y
          if [[ $COMPILER_ID = gcc ]]; then
            apt-get install -y $CC $CXX $FC
          else
            apt-get install -y $CC $FC
          fi
      # Install specific CMake version if requested
      - name: Install CMake version
        if: matrix.CMAKE_VERSION
        working-directory: /work
        run: |
          CMAKE_VERSION=${{ matrix.CMAKE_VERSION }}
          wget -O cmake-install.sh "https://github.com/Kitware/CMake/releases/download/v${CMAKE_VERSION}/cmake-${CMAKE_VERSION}-linux-x86_64.sh"
          sh cmake-install.sh --prefix=/usr --skip-license
          rm cmake-install.sh
      - name: Install Python version
        if: matrix.PYTHON_VERSION
        uses: actions/setup-python@v4
        with:
          python-version: ${{ matrix.PYTHON_VERSION }}
      - name: Install Python dependencies
        if: matrix.PYTHON_VERSION
        run: |
          python3 -m pip install pybind11~=2.6.1
          python3 -m pip install -r support/Python/requirements.txt \
            -r support/Python/dev_requirements.txt
          python3 -m pip list -v
      - name: Install ParaView
        if: matrix.test_3d_rendering == 'ON'
        working-directory: /work
        # Can't just `apt-get install python3-paraview` because we need the
        # headless build of ParaView. So we download a binary from paraview.org
        # (which is built for a specific Python version unfortunately).
        run: |
          apt-get install -y libglvnd-dev  # Needed to find 'libglapi.so'
          wget -O paraview.tar.gz --no-check-certificate "https://www.paraview.org/paraview-downloads/download.php?submit=Download&version=v5.10&type=binary&os=Linux&downloadFile=ParaView-5.10.1-osmesa-MPI-Linux-Python3.9-x86_64.tar.gz"
          tar -xzf paraview.tar.gz
          rm paraview.tar.gz
          mv ParaView-* /opt/paraview
          echo "/opt/paraview/bin" >> $GITHUB_PATH
          # Make 'paraview' Python package available
          PYTHONPATH=/opt/paraview/lib/python3.9/site-packages:$PYTHONPATH
          # Give system-installed Python packages priority over ParaView's
          PYTHONPATH=$pythonLocation/lib/python3.9/site-packages:$PYTHONPATH
          echo "PYTHONPATH=$PYTHONPATH" >> $GITHUB_ENV
      # Assign a unique cache key for every run.
      # - We will save the cache using this unique key, but only on the develop
      #   branch. This way we regularly update the cache without filling up the
      #   storage space with caches from other branches.
      # - To restore the most recent cache we provide a partially-matched
      #   "restore key".
      - name: Restore ccache
        uses: actions/cache/restore@v3
        id: restore-ccache
        env:
          CACHE_KEY_PREFIX: "ccache-${{ matrix.compiler }}-\
${{ matrix.build_type }}-pch-${{ matrix.use_pch || 'ON' }}"
        with:
          path: /work/ccache
          key: "${{ env.CACHE_KEY_PREFIX }}-${{ github.run_id }}"
          restore-keys: |
            ${{ env.CACHE_KEY_PREFIX }}-
      - name: Configure ccache
        # Print the ccache configuration and reset statistics
        run: |
          ccache -pz
      - name: Clear ccache
        # Clear ccache if requested
        if: >
          github.event_name == 'workflow_dispatch'
            && github.event.inputs.clear_ccache == 'yes'
        run: |
          ccache -C
      - name: Configure build with cmake
        # Notes on the build configuration:
        # - We don't need debug symbols during CI, so we turn them off to reduce
        #   memory usage.
        run: >
          mkdir build && cd build

          BUILD_PYTHON_BINDINGS=${{ matrix.BUILD_PYTHON_BINDINGS }}
          BUILD_SHARED_LIBS=${{ matrix.BUILD_SHARED_LIBS }}
          MATRIX_CHARM_ROOT=${{ matrix.CHARM_ROOT }}
          ASAN=${{ matrix.ASAN }}
          MEMORY_ALLOCATOR=${{ matrix.MEMORY_ALLOCATOR }}
          UBSAN_UNDEFINED=${{ matrix.UBSAN_UNDEFINED }}
          UBSAN_INTEGER=${{ matrix.UBSAN_INTEGER }}
          USE_PCH=${{ matrix.use_pch }}
          USE_XSIMD=${{ matrix.use_xsimd }}
          COVERAGE=${{ matrix.COVERAGE }}
          TEST_TIMEOUT_FACTOR=${{ matrix.TEST_TIMEOUT_FACTOR }}
          INPUT_FILE_MIN_PRIO=${{ matrix.input_file_tests_min_priority }}

          cmake --version

          cmake
          -D CMAKE_C_COMPILER=${CC}
          -D CMAKE_CXX_COMPILER=${CXX}
          -D CMAKE_Fortran_COMPILER=${FC}
          -D CMAKE_CXX_FLAGS="${CXXFLAGS} ${{ matrix.EXTRA_CXX_FLAGS }}"
          -D OVERRIDE_ARCH=x86-64
          -D CHARM_ROOT=${MATRIX_CHARM_ROOT:-$CHARM_ROOT}
          -D CMAKE_BUILD_TYPE=${{ matrix.build_type }}
          -D DEBUG_SYMBOLS=OFF
          -D BACKTRACE_LIB=/usr/local/lib/libbacktrace.a
          -D BACKTRACE_HEADER_DIR=/usr/local/include
          -D UNIT_TESTS_IN_TEST_EXECUTABLES=OFF
          -D SPECTRE_INPUT_FILE_TEST_MIN_PRIORITY=${INPUT_FILE_MIN_PRIO:-'high'}
          -D STRIP_SYMBOLS=ON
          -D STUB_EXECUTABLE_OBJECT_FILES=ON
          -D STUB_LIBRARY_OBJECT_FILES=ON
          -D USE_PCH=${USE_PCH:-'ON'}
          -D USE_XSIMD=${USE_XSIMD:-'ON'}
          -D USE_CCACHE=ON
          -D ENABLE_OPENMP=ON
          -D COVERAGE=${COVERAGE:-'OFF'}
          -D BUILD_PYTHON_BINDINGS=${BUILD_PYTHON_BINDINGS:-'ON'}
          -D BUILD_SHARED_LIBS=${BUILD_SHARED_LIBS:-'ON'}
          -D ASAN=${ASAN:-'OFF'}
          -D UBSAN_UNDEFINED=${UBSAN_UNDEFINED:-'OFF'}
          -D UBSAN_INTEGER=${UBSAN_INTEGER:-'OFF'}
          -D MEMORY_ALLOCATOR=${MEMORY_ALLOCATOR:-'SYSTEM'}
          -D SPECTRE_UNIT_TEST_TIMEOUT_FACTOR=${TEST_TIMEOUT_FACTOR:-'1'}
          -D SPECTRE_INPUT_FILE_TEST_TIMEOUT_FACTOR=${TEST_TIMEOUT_FACTOR:-'1'}
          -D SPECTRE_PYTHON_TEST_TIMEOUT_FACTOR=${TEST_TIMEOUT_FACTOR:-'1'}
          -D CMAKE_INSTALL_PREFIX=/work/spectre_install
          -D BUILD_DOCS=OFF
          --warn-uninitialized
          $GITHUB_WORKSPACE 2>&1 | tee CMakeOutput.txt 2>&1
      - name: Check for CMake warnings
        working-directory: build
        run: |
          ! grep -A 6 "CMake Warning" ./CMakeOutput.txt
      - name: Build unit tests
        if: matrix.unit_tests != 'OFF'
        working-directory: build
        run: |
          make -j2 unit-tests
      - name: Run unit tests
        if: matrix.unit_tests != 'OFF' && matrix.COVERAGE != 'ON'
        working-directory: build
        run: |
          # We get occasional random timeouts, repeat tests to see if
          # it is a random timeout or systematic.
          #
          # We run ctest -L unit before build test-executables to make
          # sure that all the unit tests are actually built by the
          # unit-tests target.
          ctest -j2 -L unit --output-on-failure --repeat after-timeout:3
      - name: Run unit tests with coverage reporting
        if: matrix.COVERAGE == 'ON'
        working-directory: build
        run: |
          make unit-test-coverage
          rm -r docs/html/unit-test-coverage
      - name: Upload coverage report to codecov.io
        if: matrix.COVERAGE == 'ON'
        uses: codecov/codecov-action@v3
        with:
          files: build/tmp/coverage.info
          # Display the job as failed if upload fails (defaults to false for
          # some reason)
          fail_ci_if_error: true
        # We currently don't require codecov in our guidelines, so don't fail
        # the CI build if codecov fails to upload
        continue-on-error: true
      # Build the executables in a single thread to reduce memory usage
      # sufficiently so they compile on the GitHub-hosted runners
      - name: Build executables
        if: matrix.COVERAGE != 'ON' && matrix.test_executables != 'OFF'
        working-directory: build
        run: |
          make test-executables
      - name: Build Benchmark executable
        if: matrix.build_type == 'Release'
        working-directory: build
        run: |
          make -j2 Benchmark
      # Delete unused cache entries before uploading the cache
      - name: Clean up ccache
        if: github.ref == 'refs/heads/develop'
        run: |
          now=$(date +%s)
          job_duration=$((now - ${{ steps.start.outputs.time }}))
          ccache --evict-older-than "${job_duration}s"
      # Save the cache after everything has been built. Also save on failure or
      # on cancellation (`always()`) because a partial cache is better than no
      # cache.
      - name: Save ccache
        if: always() && github.ref == 'refs/heads/develop'
        uses: actions/cache/save@v3
        with:
          path: /work/ccache
          key: ${{ steps.restore-ccache.outputs.cache-primary-key }}
      - name: Print size of build directory
        working-directory: build
        run: |
          ls | xargs du -sh
          du -sh .
      - name: Diagnose ccache
        run: |
          ccache -s
      - name: Run non-unit tests
        if: matrix.COVERAGE != 'ON' && matrix.test_executables != 'OFF'
        working-directory: build
        run: |
          # We get occasional random timeouts, repeat tests to see if
          # it is a random timeout or systematic
          ctest -j2 -LE unit --output-on-failure --repeat after-timeout:3
      - name: Install
        if: matrix.install == 'ON'
        working-directory: build
        # Make sure the `install` target runs without error. We could add some
        # basic smoke tests here to make sure the installation worked.
        run: |
          make install
      - name: Print size of install directory
        if: matrix.install == 'ON'
        working-directory: /work/spectre_install
        # Remove files post-install to reduce disk space for later on.
        run: |
          ls | xargs du -sh
          du -sh .
          rm -r ./*
      - name: Test formaline tar can be built
        # - We only run the formaline tests in debug mode to reduce total build
        #   time in CI.
        # - We do run for all compilers, though, because formaline injects data
        #   at the linking stage, which means we are somewhat tied to the
        #   compiler version.
        # - We make sure to use the same compiler flags as the full build above
        #   so ccache is able to speed up the build.
        if: matrix.build_type == 'Debug'
        working-directory: build
        run: >
          make EvolveBurgers -j2

          if [ ! -f ./bin/EvolveBurgers ]; then
            echo "Could not find the executable EvolveBurgers";
            echo "which we use for testing formaline";
            exit 1
          fi

          # We disable ASAN's leak sanitizer because Charm++ has false
          # positives that would cause the build to fail. We disable
          # leak sanitizer for the ctest runs inside CMake anyway.

          ASAN_OPTIONS=detect_leaks=0 ./bin/EvolveBurgers
          --dump-source-tree-as spectre_src --dump-only

          mkdir spectre_src;
          mv spectre_src.tar.gz spectre_src;
          cd spectre_src;
          tar xf spectre_src.tar.gz;
          mkdir build-formaline;
          cd build-formaline

          BUILD_PYTHON_BINDINGS=${{ matrix.BUILD_PYTHON_BINDINGS }}
          MATRIX_CHARM_ROOT=${{ matrix.CHARM_ROOT }}
          MEMORY_ALLOCATOR=${{ matrix.MEMORY_ALLOCATOR }};
          USE_PCH=${{ matrix.use_pch }};
          USE_XSIMD=${{ matrix.use_xsimd }}

          cmake
          -D CMAKE_C_COMPILER=${CC}
          -D CMAKE_CXX_COMPILER=${CXX}
          -D CMAKE_Fortran_COMPILER=${FC}
          -D CMAKE_CXX_FLAGS="${CXXFLAGS} ${{ matrix.EXTRA_CXX_FLAGS }}"
          -D OVERRIDE_ARCH=x86-64
          -D BUILD_SHARED_LIBS=ON
          -D CHARM_ROOT=${MATRIX_CHARM_ROOT:-$CHARM_ROOT}
          -D CMAKE_BUILD_TYPE=${{ matrix.build_type }}
          -D DEBUG_SYMBOLS=OFF
          -D UNIT_TESTS_IN_TEST_EXECUTABLES=OFF
          -D STRIP_SYMBOLS=ON
          -D STUB_EXECUTABLE_OBJECT_FILES=ON
          -D STUB_LIBRARY_OBJECT_FILES=ON
          -D USE_PCH=${USE_PCH:-'ON'}
          -D USE_XSIMD=${USE_XSIMD:-'ON'}
          -D USE_CCACHE=ON
          -D BUILD_PYTHON_BINDINGS=${BUILD_PYTHON_BINDINGS:-'ON'}
          -D MEMORY_ALLOCATOR=${MEMORY_ALLOCATOR:-'SYSTEM'}
          -D BUILD_DOCS=OFF
          ..

          make EvolveBurgers -j2

          ctest -j2 -R InputFiles.Burgers.Step.yaml --output-on-failure

          cd .. && rm -r build-formaline
      - name: Test bundled exporter
        if: matrix.ASAN != 'ON'
        working-directory: build
        run: |
          make -j2 BundledExporter
          mkdir build-test-exporter && cd build-test-exporter
          cmake -D SPECTRE_ROOT=$GITHUB_WORKSPACE/build \
            $GITHUB_WORKSPACE/tests/Unit/IO/Exporter/BundledExporter
          make -j2
          ./TestSpectreExporter \
            $GITHUB_WORKSPACE/tests/Unit/Visualization/Python/VolTestData0.h5 \
            element_data 0 Psi 0 0 0 -0.07059806932542323
          cd .. && rm -r build-test-exporter
      - name: Diagnose ccache
        run: |
          ccache -s

  # Build all test executables and run unit tests on macOS
  unit_tests_macos:
    name: Unit tests on macOS
    runs-on: macos-11
    env:
      # We install some low-level dependencies with Homebrew. They get picked up
      # by `spack external find`.
      SPECTRE_BREW_DEPS: >-  # Line breaks are spaces, no trailing newline
        autoconf automake catch2 ccache cmake pkg-config
      # We install these packages with Spack and cache them. The full specs are
      # listed in support/DevEnvironments/spack.yaml. This list is only needed
      # to create the cache.
      SPECTRE_SPACK_DEPS: >-
        blaze boost brigand charmpp gsl hdf5 libsharp libxsmm openblas
        py-pybind11 yaml-cpp
      CCACHE_DIR: $HOME/ccache
      CCACHE_TEMPDIR: $HOME/ccache-tmp
      CCACHE_MAXSIZE: "2G"
      CCACHE_COMPRESS: 1
      CCACHE_COMPRESSLEVEL: 5
      CCACHE_COMPILERCHECK: content
      SPACK_SKIP_MODULES: true
      SPACK_COLOR: always
    steps:
      - name: Record start time
        id: start
        run: |
          echo "time=$(date +%s)" >> "$GITHUB_OUTPUT"
      - name: Checkout repository
        uses: actions/checkout@v3
      - uses: actions/setup-python@v4
        with:
          python-version: '3.10'
      - name: Install Homebrew dependencies
        run: |
          brew install $SPECTRE_BREW_DEPS
      # We install the remaining dependencies with Spack and cache them.
      # See the `unit_tests` job above for details on the cache configuration.
      - name: Restore dependency cache
        uses: actions/cache/restore@v3
        id: restore-dependencies
        with:
          path: ~/dependencies
          key: "dependencies-macos-${{ github.run_id }}"
          restore-keys: |
            dependencies-macos-
      - name: Install Spack
        run: |
          cd $HOME
          git clone -c feature.manyFiles=true --depth=1 \
            --branch releases/v0.18 --single-branch \
            https://github.com/spack/spack.git
      - name: Configure Spack
        # - To avoid re-building packages that are already installed by Homebrew
        #   we let Spack find them.
        # - Add the dependency cache as binary mirror.
        run: |
          source $HOME/spack/share/spack/setup-env.sh
          spack debug report
          spack compiler find && spack compiler list
          spack external find && spack external find perl python
          spack config get packages
          spack mirror add dependencies file://$HOME/dependencies/spack
      # Install the remaining dependencies from source with Spack. We install
      # them in an environment that we can activate later. After building the
      # dependencies from source we cache them as compressed tarballs.
      - name: Install Spack dependencies
        run: |
          source $HOME/spack/share/spack/setup-env.sh
          spack env create spectre support/DevEnvironments/spack.yaml
          spack env activate spectre
          spack remove catch2 doxygen jemalloc
          spack concretize --reuse
          spack install --no-check-signature
          spack find -v
      - name: Update dependency cache
        if: github.ref == 'refs/heads/develop'
        run: |
          source $HOME/spack/share/spack/setup-env.sh
          # Clear existing buildcache so we don't accumulate old versions of
          # packages in the cache
          rm -rf $HOME/dependencies
          spack buildcache create -ufa -m dependencies $SPECTRE_SPACK_DEPS
        # Allow the buildcache creation to fail without failing the job, since
        # it sometimes runs out of memory
        continue-on-error: true
      - name: Save dependency cache
        if: github.ref == 'refs/heads/develop'
        uses: actions/cache/save@v3
        with:
          path: ~/dependencies
          key: ${{ steps.restore-dependencies.outputs.cache-primary-key }}
      # Install remaining pure Python dependencies with pip because the Spack
      # package index can be incomplete (it can't mirror all of pip)
      - name: Install Python dependencies
        run: |
          source $HOME/spack/share/spack/setup-env.sh
          spack env activate spectre
          pip install -r support/Python/requirements.txt
      # Replace the ccache directory that building the dependencies may have
      # generated with the cached ccache directory.
      - name: Clear ccache from dependencies
        run: |
          ccache --clear
          rm -rf $CCACHE_DIR
          mkdir -p $CCACHE_DIR
      - name: Restore ccache
        uses: actions/cache/restore@v3
        id: restore-ccache
        with:
          path: ~/ccache
          key: "ccache-macos-${{ github.run_id }}"
          restore-keys: |
            ccache-macos-
      - name: Configure ccache
        run: |
          ccache -pz
      - name: Clear ccache
        # Clear ccache if requested
        if: >
          github.event_name == 'workflow_dispatch'
            && github.event.inputs.clear_ccache == 'yes'
        run: |
          ccache -C
      # Configure, build and run tests. See the `unit_tests` job above for
      # details.
      # - We increase the timeout for tests because the GitHub-hosted macOS VMs
      #   appear to be quite slow.
      - name: Configure build with cmake
        run: |
          source $HOME/spack/share/spack/setup-env.sh
          spack env activate spectre
          mkdir build && cd build
          cmake \
            -D CMAKE_C_COMPILER=clang \
            -D CMAKE_CXX_COMPILER=clang++ \
            -D CMAKE_Fortran_COMPILER=gfortran-11 \
            -D CMAKE_CXX_FLAGS="-Werror" \
            -D OVERRIDE_ARCH=x86-64 \
            -D BUILD_SHARED_LIBS=ON \
            -D BUILD_PYTHON_BINDINGS=ON \
            -D MEMORY_ALLOCATOR=SYSTEM \
            -D CHARM_ROOT=$(spack location --install-dir charmpp) \
            -D CMAKE_BUILD_TYPE=Debug \
            -D DEBUG_SYMBOLS=OFF \
            -D UNIT_TESTS_IN_TEST_EXECUTABLES=OFF \
            -D STUB_EXECUTABLE_OBJECT_FILES=ON \
            -D STUB_LIBRARY_OBJECT_FILES=ON \
            -D USE_PCH=ON \
            -D USE_CCACHE=ON \
            -D SPECTRE_TEST_TIMEOUT_FACTOR=5 \
            -D CMAKE_INSTALL_PREFIX=../install \
            -D BUILD_DOCS=OFF \
            -D USE_XSIMD=OFF \
            $GITHUB_WORKSPACE
      - name: Build unit tests
        working-directory: build
        # Build on 3 threads because GitHub's macOS VMs have 3 cores:
        # https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners#supported-runners-and-hardware-resources
        run: |
          make -j3 unit-tests
      - name: Build executables
        working-directory: build
        run: |
          make test-executables
      - name: Clean up ccache
        if: github.ref == 'refs/heads/develop'
        run: |
          now=$(date +%s)
          job_duration=$((now - ${{ steps.start.outputs.time }}))
          ccache --evict-older-than "${job_duration}s"
      - name: Save ccache
        if: always() && github.ref == 'refs/heads/develop'
        uses: actions/cache/save@v3
        with:
          path: ~/ccache
          key: ${{ steps.restore-ccache.outputs.cache-primary-key }}
      - name: Print size of build directory
        working-directory: build
        run: |
          ls | xargs du -sh
          du -sh .
      - name: Diagnose ccache
        run: |
          ccache -s
      - name: Run unit tests
        working-directory: build
        run: |
          ctest -j3 --repeat after-timeout:3 --output-on-failure
      - name: Install
        working-directory: build
        run: |
          make install
      - name: Print size of install directory
        working-directory: install
        run: |
          ls | xargs du -sh
          du -sh .
          rm -r ./*

  # Release a new version on manual events when requested and the tests pass.
  # Only enable this on the `sxs-collaboration/spectre` repository (not on
  # forks).
  release_version:
    name: Release version
    # Running in a protected environment that provides the necessary secrets
    environment: release
    runs-on: ubuntu-latest
    if: >
      github.repository == 'sxs-collaboration/spectre'
        && github.ref == 'refs/heads/develop'
        && github.event_name == 'workflow_dispatch'
        && github.event.inputs.release_version != ''
    needs:
      - check_files_and_formatting
      - doc_check
      - unit_tests
    env:
      TZ: ${{ github.event.inputs.timezone }}
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0
          # Using a personal access token with admin privileges here so this
          # action can push to protected branches. Note that this also means
          # that the pushes can trigger additional workflows (GitHub only
          # prevents pushes with the default GITHUB_TOKEN from triggering
          # additional workflows).
          token: ${{ secrets.GH_TOKEN_RELEASE }}
      - uses: actions/setup-python@v2
        with:
          python-version: '3.8'
      - name: Install Python dependencies
        run: |
          pip3 install -r .github/scripts/requirements-release.txt
      # We use the current date as tag name, unless a tag name was specified
      # as input to the `workflow_dispatch` event
      - name: Determine release version
        id: get_version
        run: |
          INPUT_RELEASE_VERSION=${{ github.event.inputs.release_version }}
          RELEASE_VERSION=${INPUT_RELEASE_VERSION:-$(date +'%Y.%m.%d')}
          echo "Release version is: ${RELEASE_VERSION}"
          echo "RELEASE_VERSION=$RELEASE_VERSION" >> $GITHUB_ENV
      - name: Validate release version
        run: |
          VERSION_PATTERN="^([0-9]{4})\.([0-9]{2})\.([0-9]{2})(\.[0-9]+)?$"
          if [[ $RELEASE_VERSION =~ $VERSION_PATTERN ]]; then
            if [ $(date +'%Y') != ${BASH_REMATCH[1]} ] ||
            [ $(date +'%m') != ${BASH_REMATCH[2]} ] ||
            [ $(date +'%d') != ${BASH_REMATCH[3]} ]; then
              TODAY=$(date +'%Y.%m.%d')
              echo "'$RELEASE_VERSION' doesn't match current date '$TODAY'"
              exit 1
            fi
          else
            echo "'$RELEASE_VERSION' doesn't match '$VERSION_PATTERN'"
            exit 1
          fi
          if [ $(git tag -l "v$RELEASE_VERSION") ]; then
            echo "Tag 'v$RELEASE_VERSION' already exists"
            exit 1
          fi
          if [ $(git rev-parse HEAD) == $(git rev-parse origin/release) ]; then
            echo "Nothing changed since last release $(git describe release)."
            exit 1
          fi
      - name: Reserve Zenodo DOI and prepare repository
        run: |
          python3 .github/scripts/Release.py prepare -vv \
            --version $RELEASE_VERSION \
            --zenodo-token ${{ secrets.ZENODO_READWRITE_TOKEN }} \
            --github-token ${{ secrets.GITHUB_TOKEN }}
          git diff
      - name: Download release notes
        uses: actions/download-artifact@v3
        id: release-notes
        with:
          name: release-notes
          path: ~/release-notes
      # Push a commit tagged with the new version to `develop` and `release`.
      # The push will trigger the workflow again because we're using a personal
      # access token. The triggered workflow will build and deploy the
      # documentation so we don't need to do that here.
      - name: Commit and push
        run: |
          git config user.name sxs-bot
          git config user.email sxs-bot@black-holes.org
          git commit -a -m "Prepare release $RELEASE_VERSION"
          git show HEAD
          git status
          git tag -a v$RELEASE_VERSION -m "Release $RELEASE_VERSION" HEAD
          git push origin HEAD:develop
          git push origin HEAD:release
          git push origin v$RELEASE_VERSION
      - name: Create release on GitHub
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GH_TOKEN_RELEASE }}
        with:
          tag_name: v${{ env.RELEASE_VERSION }}
          release_name: Release ${{ env.RELEASE_VERSION }}
          body_path: >-
            ${{ steps.release-notes.outputs.download-path }}/release_notes.md
      # Publish the Zenodo record. Once published, the record can't be deleted
      # anymore and editing is limited.
      - name: Publish to Zenodo
        run: |
          python3 .github/scripts/Release.py publish -vv \
            --zenodo-token ${{ secrets.ZENODO_PUBLISH_TOKEN }} \
            --github-token ${{ secrets.GITHUB_TOKEN }} \
            --auto-publish

  arch_datastructures_tests:
    name: Archs
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        compiler:
          - gcc-9
          - gcc-10
          - clang-13
          - clang-14
        include:
          - sde_arch: ("-nhm;nehalem" "-snb;sandybridge" "-hsw;haswell"
              "-skl;skylake")
            compiler: gcc-9
          - sde_arch: ("-nhm;nehalem" "-snb;sandybridge" "-hsw;haswell"
              "-skl;skylake" "-icx;icelake-server")
            compiler: gcc-10
          - sde_arch: ("-nhm;nehalem" "-snb;sandybridge" "-hsw;haswell"
              "-skl;skylake" "-icx;icelake-server")
            compiler: clang-13
          - sde_arch: ("-nhm;nehalem" "-snb;sandybridge" "-hsw;haswell"
              "-skl;skylake" "-icx;icelake-server" "-tgl;tigerlake")
            compiler: clang-14
    container:
      image: ${{ inputs.container || 'sxscollaboration/spectre:ci' }}
      env:
        # See the unit test job for the reasons for these configuration choices
        CXXFLAGS: "-Werror"
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3
      # Work around https://github.com/actions/checkout/issues/760
      - name: Trust checkout
        run: |
          git config --global --add safe.directory $GITHUB_WORKSPACE
      - uses: ./.github/actions/parse-compiler
        with:
          compiler: ${{ matrix.compiler }}
      - name: Install compiler
        run: |
          apt-get update -y
          if [[ $COMPILER_ID = gcc ]]; then
            apt-get install -y $CC $CXX $FC
          else
            apt-get install -y $CC $FC
          fi
      - name: Install Intel SDE
        working-directory: /work
        run: |
          wget -O sde-external.tar.xz https://downloadmirror.intel.com/813591/sde-external-9.33.0-2024-01-07-lin.tar.xz
          tar -xJf sde-external.tar.xz
          mv sde-external-* sde
          rm sde-*
      - name: Configure, build, and run tests
        working-directory: /work
        # Notes on the build configuration:
        # - We don't need debug symbols during CI, so we turn them off to reduce
        #   memory usage.
        run: >
          ARCH_PARAM_LIST=${{ matrix.sde_arch }}

          for ARCH_PARAM in ${ARCH_PARAM_LIST[@]}; do
            OVERRIDE_ARCH=`echo ${ARCH_PARAM} | cut -d";" -f2`
            SDE_FLAG=`echo ${ARCH_PARAM} | cut -d";" -f1`
            echo "CMake arch flag: $OVERRIDE_ARCH"
            echo "Intel SDE arch flag: $SDE_FLAG"
            cd /work
            BUILD_DIR=build$OVERRIDE_ARCH
            mkdir $BUILD_DIR && cd $BUILD_DIR

            cmake\
            -D CMAKE_C_COMPILER=${CC}\
            -D CMAKE_CXX_COMPILER=${CXX}\
            -D CMAKE_Fortran_COMPILER=${FC}\
            -D CMAKE_CXX_FLAGS="${CXXFLAGS}"\
            -D OVERRIDE_ARCH=${OVERRIDE_ARCH}\
            -D CHARM_ROOT=${CHARM_ROOT}\
            -D CMAKE_BUILD_TYPE=Debug\
            -D DEBUG_SYMBOLS=OFF\
            -D STRIP_SYMBOLS=ON\
            -D STUB_EXECUTABLE_OBJECT_FILES=ON\
            -D STUB_LIBRARY_OBJECT_FILES=ON\
            -D USE_PCH=ON\
            -D USE_CCACHE=ON\
            -D BUILD_DOCS=OFF\
            $GITHUB_WORKSPACE

            make -j2 TestArchitectureVectorization

            /work/sde/sde ${SDE_FLAG}\
            -- ./bin/TestArchitectureVectorization [Unit]
          done

        shell: bash