name: Conformance
# Nightly: read every file of the pinned public HDF5 corpora with clawhdf5 and
# with h5py/libhdf5 and compare (conformance/run.sh; CONFORMANCE.md explains
# the method). Fails on any panic, hang, crash or out-of-memory in clawhdf5,
# and when the ok count drops below conformance/baseline.json or a file the
# baseline lists as ok stops being ok. The report is printed into the job log;
# nothing is uploaded (artifact actions are JavaScript, which rust:latest
# cannot run — see CLAUDE.md).
on:
  schedule:
    - cron: "17 3 * * *"
  workflow_dispatch:
jobs:
  conformance:
    runs-on: ubuntu-latest
    container: rust:latest
    timeout-minutes: 60
    env:
      CARGO_NET_RETRY: "10"
    steps:
      # Plain git, not actions/checkout (a JavaScript action; see ci.yml).
      - name: Check out
        run: |
          git init -q .
          git remote add origin "${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}.git"
          for i in 1 2 3; do git fetch -q --depth 1 origin "${GITHUB_SHA}" && break; sleep 5; done
          git checkout -q FETCH_HEAD
      - name: Install h5py, h5dump and the probe's codec libraries
        # hdf5-tools: h5dump for the CVE-corpus comparison. libaec-dev and
        # pkg-config: the probe builds clawhdf5-format with `szip` (the core
        # crates' default build needs neither).
        run: |
          apt-get update
          apt-get install -y --no-install-recommends python3 python3-venv hdf5-tools libaec-dev pkg-config
          python3 -m venv /opt/conformance
          /opt/conformance/bin/pip install --no-cache-dir -r conformance/requirements.txt
          /opt/conformance/bin/python -c "import h5py, hdf5plugin; print('h5py', h5py.__version__, 'HDF5', h5py.version.hdf5_version, 'hdf5plugin', hdf5plugin.version)"
          h5dump --version
      - name: Probe unit tests
        run: cargo test --release --manifest-path conformance/probe/Cargo.toml
        env:
          CARGO_TARGET_DIR: conformance/.cache/target
      - name: Sweep
        # The corpora come from GitHub (pinned commits, conformance/corpus.txt),
        # so this job needs a runner that reaches github.com.
        env:
          CLAWHDF5_PYTHON: /opt/conformance/bin/python
        run: bash conformance/run.sh
      - name: Report
        if: always()
        run: |
          if [ -f CONFORMANCE.md ]; then cat CONFORMANCE.md; else echo "no report was generated"; fi
          if [ -f conformance/.cache/results/summary.md ]; then
            echo; echo "---- per-file detail (conformance/.cache/results/summary.md) ----"
            cat conformance/.cache/results/summary.md
          fi