Use SPDX license tags in pyproject.toml

[bdice]

We want to use SPDX license identifiers in pyproject.toml files, following the Python Packaging Docs on the license field.

Today we define our licenses in a way that was meant to pass wheeltamer, an internal check for wheels which is no longer used.

Therefore we should replace this:

[project]
license = { text = "Apache 2.0" }

with this (note the dash, which makes this a valid SPDX identifier):

[project]
license = "Apache-2.0"

Specifically, this change conforms to: https://peps.python.org/pep-0639/#deprecate-license-key-table-subkeys

Approach

Apply updates like the following to all projects in RAPIDS:

• use SPDX license strings (e.g. Apache-2.0) in [project].license field
• remove license trove classifiers
• remove [tool.setuptools].license-files, in favor of using license-files in [project]
• if scikit-build-core, set floor of scikit-build-core>=0.11.0
• if setuptools, set floor of setuptools>=77.0.0
• remove unnecessary configuration for other backends:
  • e.g. [tool.setuptools] tables in scikit-build-core projects
• remove unnecessary build dependencies
  • e.g. including both setuptools and scikit-build-core

hatchling projects (GitHub search)

• jupyterlab-nvdashboard (remove setup.py, remove license classifier, update pre-commit hooks jupyterlab-nvdashboard#247)
• rapids-cli (fix license metadata in conda packages, remove setuptools configuration rapids-cli#131)

scikit-build-core projects (GitHub search)

• cudf + cudf-kafka + libcudf + pylibcudf (Use SPDX license identifiers in pyproject.toml, bump build dependency floors cudf#20959)
• cugraph + libcugraph + pylibcugraph (Use SPDX license identifiers in pyproject.toml, bump build dependency floors cugraph#5380)
• cuml + libcuml (Use SPDX license identifiers in pyproject.toml, bump build dependency floors cuml#7641)
• cuopt + cuopt_mps_parser + libcuopt (Use SPDX license identifiers in pyproject.toml, bump build dependency floors NVIDIA/cuopt#742)
• cuvs + libcuvs (Use SPDX license identifiers in pyproject.toml, bump build dependency floors cuvs#1667)
• kvikio + libkvikio (Use SPDX license identifiers in pyproject.toml, bump build dependency floors kvikio#890)
• libwholegraph + pylibwholegraph (Use SPDX license identifiers in pyproject.toml, bump build dependency floors cugraph-gnn#377)
• raft + libraft + pylibraft (Use SPDX license identifiers in pyproject.toml, bump build dependency floors raft#2910)
• rapids-logger (Use SPDX license identifiers in pyproject.toml, bump build dependency floors rapids-logger#61)
• rapidsmpf + librapidsmpf (Use SPDX license identifiers in pyproject.toml, bump build dependency floors rapidsmpf#766)
• rmm + librmm (Use SPDX license identifiers in pyproject.toml, bump build dependency floors rmm#2194)
• ucxx + libucxx (Use SPDX license identifiers in pyproject.toml, bump build dependency floors ucxx#563)

setuptools projects (GitHub search)

• cucim (Use SPDX license identifiers in pyproject.toml, bump build dependency floors cucim#999)
• cudf-polars + custreamz + dask-cudf (Use SPDX license identifiers in pyproject.toml, bump build dependency floors cudf#20959)
• cugraph-pyg (Use SPDX license identifiers in pyproject.toml, bump build dependency floors cugraph-gnn#377)
• cuopt-server + cuopt_sh_client (Use SPDX license identifiers in pyproject.toml, bump build dependency floors NVIDIA/cuopt#742)
• cuxfilter (Use SPDX license identifiers in pyproject.toml, remove setup.py, bump build dependency floors cuxfilter#752)
• cuvs-bench (Use SPDX license identifiers in pyproject.toml, bump build dependency floors cuvs#1667)
• dask-cuda (Use SPDX license identifiers in pyproject.toml, bump build dependency floors dask-cuda#1600)
• distributed-ucxx (Use SPDX license identifiers in pyproject.toml, bump build dependency floors ucxx#563)
• libucx (Use SPDX license identifiers in pyproject.toml, bump build dependency floors ucx-wheels#31)
• nx-cugraph (Use SPDX license identifiers in pyproject.toml, bump build dependency floors nx-cugraph#223)
• ➡️ pre-commit-hooks (verify-pyproject-license: expect PEP 639 license metadata pre-commit-hooks#93)
  • deferred to verify-pyproject-license: updates for PEP 639 pre-commit-hooks#95
• rapids-build-backend (Use SPDX license identifiers in pyproject.toml, bump build dependency floors rapids-build-backend#77)
• rapids-dask-dependency (Use SPDX license identifiers in pyproject.toml, bump build dependency floors rapids-dask-dependency#139)
• rapids-dependency-file-generator (fix(packaging): use SPDX license config, other small maintenance dependency-file-generator#172)
• rapids-metadata (Use SPDX license identifiers in pyproject.toml, bump build dependency floors rapids-metadata#68)
• rapids-reviser (https://github.com/rapidsai/rapids-reviser/pull/105)