name: CI
on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
jobs:
  test:
    runs-on: ubuntu-latest
    container: rust:latest
    steps:
      - uses: actions/checkout@v4
      - name: Cache cargo registry/target
        uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
      - name: Install rustfmt & clippy components
        run: rustup component add rustfmt clippy
      - name: Install thumbv7em-none-eabihf target
        run: rustup target add thumbv7em-none-eabihf
      - name: Install Python interop dependencies
        # The interop suites used to skip silently when python3/h5py were
        # missing, so they never ran in CI. Install them and make a missing
        # dependency a failure (CLAWHDF5_REQUIRE_INTEROP below).
        run: |
          apt-get update
          apt-get install -y --no-install-recommends python3 python3-venv
          python3 -m venv /opt/interop
          /opt/interop/bin/pip install --no-cache-dir h5py numpy netCDF4 xarray
          echo "/opt/interop/bin" >> "$GITHUB_PATH"
      - name: Show interop library versions
        run: /opt/interop/bin/python -c "import h5py, netCDF4; print('h5py', h5py.__version__, 'HDF5', h5py.version.hdf5_version, 'netCDF4', netCDF4.__version__)"
      - name: Run CI script
        env:
          # Name the interpreter outright rather than relying on $GITHUB_PATH
          # reaching the test processes: if `python3` resolved to the system
          # one instead of the venv, every interop suite would skip.
          # CLAWHDF5_REQUIRE_INTEROP turns that skip into a failure, so the
          # two together mean the suites either run or the build goes red.
          CLAWHDF5_PYTHON: /opt/interop/bin/python
          CLAWHDF5_REQUIRE_INTEROP: "1"
        run: bash scripts/ci-test.sh