spack.yml

name: 'Spack Package'

on:
  push:
    paths:
      - 'packaging/spack/**'
      - '.github/workflows/spack.yml'
  pull_request:
    paths:
      - 'packaging/spack/**'
      - '.github/workflows/spack.yml'
  workflow_dispatch:

jobs:
  lint:
    name: Spack Lint & Style Check
    runs-on: ubuntu-latest
    steps:
      - name: Checkout MFC
        uses: actions/checkout@v4

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.11'

      - name: Install Spack
        run: |
          git clone --depth=1 https://github.com/spack/spack.git
          echo "${GITHUB_WORKSPACE}/spack/bin" >> $GITHUB_PATH

      - name: Setup Spack
        run: |
          . spack/share/spack/setup-env.sh
          spack compiler find

      - name: Install Package into Spack
        run: |
          . spack/share/spack/setup-env.sh
          # Find the actual builtin repo location
          BUILTIN_REPO=$(spack repo list | grep builtin | awk '{print $NF}')
          echo "Builtin repo location: $BUILTIN_REPO"
          # Copy package to the builtin repo
          mkdir -p "$BUILTIN_REPO/packages/mfc"
          cp packaging/spack/package.py "$BUILTIN_REPO/packages/mfc/"
          # Verify package is visible
          spack list mfc
          # Show package info to confirm it loads
          spack info mfc

      - name: Run Spack Style Check
        run: |
          . spack/share/spack/setup-env.sh
          # Skip flake8 F405 warnings which are expected for star imports in Spack packages
          spack style -s flake8 packaging/spack/package.py

      - name: Run Spack Audit
        run: |
          . spack/share/spack/setup-env.sh
          spack audit packages mfc

      - name: Verify Package Info
        run: |
          . spack/share/spack/setup-env.sh
          spack info mfc

  test-spec:
    name: Test Package Spec
    runs-on: ubuntu-latest
    steps:
      - name: Checkout MFC
        uses: actions/checkout@v4

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.11'

      - name: Install Spack
        run: |
          git clone --depth=1 https://github.com/spack/spack.git
          echo "${GITHUB_WORKSPACE}/spack/bin" >> $GITHUB_PATH

      - name: Setup Spack
        run: |
          . spack/share/spack/setup-env.sh
          spack compiler find

      - name: Install Package into Spack
        run: |
          . spack/share/spack/setup-env.sh
          # Find the actual builtin repo location
          BUILTIN_REPO=$(spack repo list | grep builtin | awk '{print $NF}')
          echo "Builtin repo location: $BUILTIN_REPO"
          # Copy package to the builtin repo
          mkdir -p "$BUILTIN_REPO/packages/mfc"
          cp packaging/spack/package.py "$BUILTIN_REPO/packages/mfc/"
          # Verify package is visible
          spack list mfc
          # Show package info to confirm it loads
          spack info mfc

      - name: Test Default Spec
        run: |
          . spack/share/spack/setup-env.sh
          spack spec mfc

      - name: Test Minimal Spec
        run: |
          . spack/share/spack/setup-env.sh
          spack spec mfc~mpi~post_process

  test-install:
    name: Test Installation & Execution
    # Only run on pull requests or manual workflow dispatch to save CI time
    if: github.event_name == 'pull_request' || github.event_name == 'workflow_dispatch'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout MFC
        uses: actions/checkout@v4

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.11'

      - name: Install System Dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y gfortran cmake libopenblas-dev libfftw3-dev libhdf5-dev

      - name: Install Spack
        run: |
          git clone --depth=1 https://github.com/spack/spack.git
          echo "${GITHUB_WORKSPACE}/spack/bin" >> $GITHUB_PATH

      - name: Setup Spack with Binary Cache
        run: |
          . spack/share/spack/setup-env.sh
          spack compiler find
          # Add binary cache mirror for pre-built packages
          spack mirror add binary_mirror https://binaries.spack.io/v0.23.1
          spack buildcache keys --install --trust
          # Mark system packages as external to avoid building
          spack external find --not-buildable cmake python perl gfortran gcc
          spack config add "packages:all:target:[x86_64]"

      - name: Cache Spack Dependencies
        id: spack-cache
        uses: actions/cache@v4
        with:
          path: |
            spack/opt/spack
            spack/var/spack/cache
          key: spack-deps-${{ runner.os }}-${{ hashFiles('packaging/spack/package.py') }}
          restore-keys: |
            spack-deps-${{ runner.os }}-

      - name: Check Cache Status
        run: |
          if [ "${{ steps.spack-cache.outputs.cache-hit }}" == "true" ]; then
            echo "✓ Cache hit! Dependencies already built."
            . spack/share/spack/setup-env.sh
            spack find
          else
            echo "⚠ Cache miss. Will build dependencies from source (~30-40 min)."
          fi

      - name: Install Package into Spack
        run: |
          . spack/share/spack/setup-env.sh
          # Find the actual builtin repo location
          BUILTIN_REPO=$(spack repo list | grep builtin | awk '{print $NF}')
          echo "Builtin repo location: $BUILTIN_REPO"
          # Copy package and patch files to the builtin repo
          mkdir -p "$BUILTIN_REPO/packages/mfc"
          cp packaging/spack/package.py "$BUILTIN_REPO/packages/mfc/"
          cp packaging/spack/*.patch "$BUILTIN_REPO/packages/mfc/" 2>/dev/null || true
          # Verify package is visible
          spack list mfc

      - name: Install MFC Dependencies
        run: |
          . spack/share/spack/setup-env.sh
          # Install just the dependencies first (these are cached)
          spack install --show-log-on-error --only dependencies mfc@master~mpi~post_process

      - name: Install MFC via Spack
        run: |
          . spack/share/spack/setup-env.sh
          # Install MFC itself (dependencies are already installed/cached)
          spack install --show-log-on-error mfc@master~mpi~post_process

      - name: Test MFC Execution
        run: |
          . spack/share/spack/setup-env.sh
          spack load mfc
          # Verify binaries are available
          which pre_process
          which simulation
          echo "✓ Binaries found"
          # Create test directory
          mkdir -p test_run
          cd test_run
          # Copy example case
          cp ../examples/1D_sodshocktube/case.py .
          # Generate case configuration
          python3 case.py > case.json
          echo "✓ Generated case configuration"
          # Run pre_process
          pre_process < case.json
          echo "✓ Pre-processing completed"
          # Run simulation (just 1 step to verify it works)
          simulation
          echo "✓ Simulation completed"