Files
clawhdf5/conformance/corpus.txt
osobhandClaude Opus 5.5 9179aa356e feat(conformance): in-repo, reproducible conformance sweep
conformance/run.sh fetches eight public HDF5 corpora pinned by commit
(conformance/corpus.txt) into a gitignored cache, reads every file with
clawhdf5 (conformance/probe, a crate outside the workspace) and with
h5py/libhdf5 (ref.py), and the CVE files with h5dump, each under a timeout
and an address-space limit; compare.py classifies the files, report.py
writes CONFORMANCE.md and check.py gates on panics/hangs/crashes/OOM and on
regressions against conformance/baseline.json. ~25 s once cached.

Changes from the ad-hoc audit harness:
- the probe compares non-IEEE-layout floats (N-Bit) and integers with a bit
  offset or reduced precision as the values libhdf5 converts them to, not
  raw file bytes: 8 files that showed as mismatches now read identically;
- ref.py exits without tearing down h5py objects: libhdf5 2.0 aborts while
  freeing them for two files about half the time, which flipped them
  between ok and h5py-cannot-read from run to run;
- the file list is defined (list_files.py): netCDF classic files are left
  out, 11 HDF5 files the ad-hoc sweep missed are in.

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
2026-09-25 22:06:00 -05:00

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# Conformance corpora, pinned by commit. fetch-corpus.sh reads this file.
#
# name git-url commit root [sparse-checkout patterns...]
#
# `root` is the directory inside the checkout that is swept ("." = all of it).
# Patterns are git non-cone sparse-checkout patterns; none = whole repository.
# Every file under <root> with an HDF5/netCDF-4 extension is probed; for
# cve_hdf5 the extension-less files in cvefiles/ and fuzzerfiles/ are too.
# Licences: each corpus keeps its upstream licence; nothing here is committed
# to this repository — the files are downloaded into the gitignored cache.
hdf5 https://github.com/HDFGroup/hdf5.git a3cf1ea82cc7a66e50029a688121e1b105a7ce88 . *.h5 *.he5 *.nc *.hdf5 *.h5f
cve_hdf5 https://github.com/HDFGroup/cve_hdf5.git 3fd1f5ae3869e01b8ae02b41d7108de7ffb1a374 .
netcdf-c https://github.com/Unidata/netcdf-c.git beb7b9585273c1548386231a59b809d906359033 . /nc_test4/*.nc /ncdump/*.nc /nc_test4/*.h5 /ncdump/*.h5 /h5_test/*.h5 /hdf5_test/*.h5
NCAS-CMS_pyfive https://github.com/NCAS-CMS/pyfive.git 8cf07b8749133f41c5e30b8a4c604486f687fe74 . *.h5 *.hdf5 *.hdf *.nc *.he5
usnistgov_h5wasm https://github.com/usnistgov/h5wasm.git 02f6336527d2812783fcedabfbf42127ec8d06d2 . *.h5 *.hdf5 *.hdf *.nc *.he5
netcdf4-python https://github.com/Unidata/netcdf4-python.git 6e67576d39aef8091fb20bd767b4f1a52ddc1bec . *.nc *.h5
xarray-data https://github.com/pydata/xarray-data.git a35297e9da2cc99c811014f0c8a4297345a5c28d . /basin_mask.nc /precipitation.nc4 /imerghh_730.hdf5 /eraint_uvz.nc /ROMS_example.nc /tiny.nc
# h5py 3.16.0 (tag 3.16.0), its test data files.
h5py_data https://github.com/h5py/h5py.git b2f0347c4200333acd89b43733f1caa0c115162f h5py/tests/data_files /h5py/tests/data_files/*