fds_compat.yml

name: FDS Compatibility Check

on:
  workflow_dispatch:
    inputs:
      fds_version:
        description: "FDS version tag (e.g. FDS-6.10.1) — leave empty for latest"
        required: false
  schedule:
    - cron: "0 6 * * 1"  # Every Monday 06:00 UTC

jobs:
  detect-version:
    runs-on: ubuntu-latest
    outputs:
      run_compat: ${{ steps.check.outputs.run_compat }}
      fds_version: ${{ steps.check.outputs.fds_version }}
    steps:
      - uses: actions/checkout@v4
      - id: check
        run: |
          if [ -n "${{ inputs.fds_version }}" ]; then
            echo "fds_version=${{ inputs.fds_version }}" >> $GITHUB_OUTPUT
            echo "run_compat=true" >> $GITHUB_OUTPUT
          else
            LATEST=$(gh api repos/firemodels/fds/releases/latest --jq '.tag_name')
            LAST=$(cat .github/last_tested_fds_version.txt 2>/dev/null || echo "none")
            echo "fds_version=$LATEST" >> $GITHUB_OUTPUT
            if [ "$LATEST" != "$LAST" ]; then
              echo "run_compat=true" >> $GITHUB_OUTPUT
            else
              echo "run_compat=false" >> $GITHUB_OUTPUT
            fi
          fi
        env:
          GH_TOKEN: ${{ github.token }}

  check-compat:
    needs: detect-version
    if: needs.detect-version.outputs.run_compat == 'true'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          lfs: true
      - uses: actions/setup-python@v5
        with:
          python-version: "3.12"
      - name: Download FDS
        run: |
          VERSION=${{ needs.detect-version.outputs.fds_version }}
          ASSET_URL=$(gh api repos/firemodels/fds/releases/tags/${VERSION} --jq '.assets[] | select(.name | test("_lnx\\.sh$")) | .browser_download_url' | head -n1)
          if [ -z "$ASSET_URL" ]; then
            echo "No Linux installer asset found for release $VERSION" >&2
            exit 1
          fi
          wget -q "$ASSET_URL" -O fds_install.sh
          echo "" | bash fds_install.sh --prefix=$HOME/fds
        env:
          GH_TOKEN: ${{ github.token }}
      - name: Run test simulations
        run: |
          FDS=$HOME/fds/bin/fds_openmp
          for dir in tests/cases/fds_inputs/*.fds; do
            name=$(basename "$dir" .fds)
            mkdir -p /tmp/fds_out/$name
            cd /tmp/fds_out/$name
            $FDS "$GITHUB_WORKSPACE/$dir" || true
            cd $GITHUB_WORKSPACE
          done
      - name: Install fdsreader and run tests
        run: |
          pip install ".[dev]"
          cd tests/cases && for f in *.tgz; do tar -xzvf "$f"; done
          cd ../..
          pytest tests/ -v
      - name: Update tracked FDS version
        if: success()
        run: |
          echo "${{ needs.detect-version.outputs.fds_version }}" > .github/last_tested_fds_version.txt
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add .github/last_tested_fds_version.txt
          git diff --staged --quiet || git commit -m "chore: update last tested FDS version to ${{ needs.detect-version.outputs.fds_version }}"
          git push