Spack.yaml

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

# Regularly scheduled installation test with the Spack package manager
name: Spack

on:
  schedule:
    - cron: '0 0 * * 1' # every Monday morning
  workflow_dispatch:

concurrency:
  group: spack
  cancel-in-progress: true

jobs:
  spack_install:
    name: Install
    strategy:
      matrix:
        host: [ubuntu-latest, macos-latest]
        compiler: [gcc, clang, apple-clang]
        exclude:
          - host: ubuntu-latest
            compiler: apple-clang
        version:
          # A non-exhaustive set of versions to test, e.g., versions listed in
          # published papers.
          - 'develop'
          - '2021.12.15'
      fail-fast: false
    runs-on: ${{ matrix.host }}
    env:
      # This is the configuration ("spec") that we'll install with Spack
      # - Build a subset of executables, and Python bindings
      # - Disable debug symbols to fit in the memory of the GitHub Actions VM
      # - Select the 'multicore' backend for Charm++, since we're running on a
      #   single node.
      # - Select HDF5 without MPI to avoid compiling MPI.
      SPECTRE_SPEC: >-  # Line breaks are spaces, no trailing newline
        spectre@${{ matrix.version }}
          executables=SolvePoisson1D
          +python
          ~debug_symbols
          %${{ matrix.compiler }}
          ^charmpp backend=multicore
          ^hdf5~mpi
      SPACK_COLOR: always
    steps:
      - name: Install compiler
        if: matrix.host == 'macos-latest' && matrix.compiler == 'clang'
        run: |
          brew install llvm
          echo "$(brew --prefix llvm)/bin" >> $GITHUB_PATH
      - name: Install Spack
        run: |
          git clone -c feature.manyFiles=true --depth=1 \
            https://github.com/spack/spack.git
          echo $PWD/spack/bin >> $GITHUB_PATH
      - name: Configure Spack
        run: |
          spack debug report
          spack compiler find
          spack compiler info ${{ matrix.compiler }}
          spack external find
      - name: Configure mixed toolchain
        if: matrix.host == 'ubuntu-latest' && matrix.compiler == 'clang'
        # Clang doesn't bundle a fortran compiler, so we specify one
        run: |
          export FC=$(which gfortran)
          export COMPILERS_CONFIG="$HOME/.spack/*/compilers.yaml"
          sed -i "s|f77: null$|f77: $FC|" $COMPILERS_CONFIG
          sed -i "s|fc: null$|fc: $FC|" $COMPILERS_CONFIG
          cat $COMPILERS_CONFIG
      - name: Print packages to install
        run: |
          spack spec -I ${SPECTRE_SPEC}
      - name: Install SpECTRE
        run: |
          spack install --show-log-on-error ${SPECTRE_SPEC}