# pyacvd — uniform surface remeshing via ACVD (Approximated Centroidal Voronoi
# Diagrams) clustering, exposed as a pyvista accessor. Pulled in as a hard
# runtime dependency by 3D Slicer's EvolutionarySRep module
# (SlicerSkeletalRepresentation), which without it pip-installs at import.
#
# Compiled: a nanobind C++ extension built through scikit-build-core/CMake.
# Unrelated to the separately packaged `acvd` (the original C++/VTK ACVD tool) —
# pyacvd carries its own clustering implementation and does not link it.

%global pypi_name pyacvd

# pyacvd builds its extension through scikit-build-core, which drives CMake with
# CMAKE_BUILD_TYPE=Release and so produces _clustering.abi3.so with no debug
# info. find-debuginfo then has nothing to work on --
#     find-debuginfo: Extracting debug info from 0 files
# -- and on f45 rpm makes the resulting empty debugsource list fatal:
#     error: Empty %%files file .../debugsourcefiles.list   (11036742)
# f44 built the same spec and published python3-pyacvd-0.4.0-1.fc44 with no
# debuginfo or debugsource subpackage at all, so this is not a regression in
# what we ship; f44's rpm simply tolerated the empty list and f45's does not.
#
# Disabling the debug packages is therefore honest rather than evasive: there is
# no debug info to put in them. If real debuginfo is wanted later, the fix is to
# make scikit-build-core use RelWithDebInfo (SKBUILD_CMAKE_BUILD_TYPE) rather
# than to re-enable empty subpackages.
%global debug_package %{nil}

Name:           python-%{pypi_name}
Version:        0.4.0
Release:        3%{?dist}
Summary:        Uniform surface remeshing for pyvista meshes (ACVD clustering)

License:        MIT
URL:            https://github.com/pyvista/pyacvd
Source0:        %{pypi_source %{pypi_name}}

BuildRequires:  python3-devel
BuildRequires:  gcc-c++
BuildRequires:  cmake
BuildRequires:  ninja-build
BuildRequires:  python3-scikit-build-core
BuildRequires:  python3-nanobind

%global _description %{expand:
pyacvd uniformly remeshes triangular surface meshes using ACVD (Approximated
Centroidal Voronoi Diagram) clustering: it clusters the surface into
near-equal-area regions and rebuilds the mesh from the cluster centroids,
producing well-conditioned, near-isotropic triangles. It plugs into pyvista as
an `acvd` mesh accessor.}

%description %_description

%package -n     python3-%{pypi_name}
Summary:        %{summary}

%description -n python3-%{pypi_name} %_description

%prep
%autosetup -p1 -n %{pypi_name}-%{version}

# Upstream pins `vtk~=9.5` on aarch64 only, purely because PyPI had no ARM64 vtk
# wheels below 9.5 -- it is a wheel-availability workaround, not an API bound.
# Against distro VTK it is actively wrong: it excludes 9.6, which is what this
# COPR ships, so the dependency would be unsatisfiable on aarch64. VTK comes in
# via pyvista's own dependency anyway; drop the line.
sed -i '/^  "vtk~=9\.5 ; sys_platform/d' pyproject.toml
grep -q 'vtk~=9.5' pyproject.toml && exit 1 || :

%generate_buildrequires
%pyproject_buildrequires

%build
%pyproject_wheel

%install
%pyproject_install
# -L, not -l. f45's pyproject-rpm-macros enforces PEP 639: with -l it insists on
# a License-File entry in the wheel metadata and aborts %%install when there is
# none --
#     ValueError: No License-File (PEP 639) in upstream metadata found.
# (11036718, f45-aarch64). pyacvd 0.4.0 predates PEP 639 and its build backend
# emits no License-File, so there is nothing to detect. Not arch-specific and
# not fixable here -- it is upstream metadata; f44's macros simply did not check.
# -L skips the detection and the %%license line below ships the file explicitly,
# which is what the macro's own error message recommends.
%pyproject_save_files -L %{pypi_name}

%check
%pyproject_check_import

%files -n python3-%{pypi_name} -f %{pyproject_files}
%license LICENSE
%doc README.rst

%changelog
* Fri Sep 25 2026 Morgan Hough <morgan.hough@gmail.com> - 0.4.0-3
- Disable the debug packages. scikit-build-core builds the extension Release, so
  it carries no debug info, find-debuginfo extracts from 0 files, and f45's rpm
  treats the empty debugsourcefiles.list as an error where f44's did not. The
  published f44 package has no debuginfo subpackage either, so nothing is lost.

* Fri Sep 25 2026 Morgan Hough <morgan.hough@gmail.com> - 0.4.0-2
- Ship the licence explicitly. f45's pyproject-rpm-macros enforces PEP 639 and
  %%pyproject_save_files -l now aborts when the wheel carries no License-File
  entry; pyacvd 0.4.0 predates PEP 639 and emits none. Switch to -L and add
  %%license LICENSE, as the macro's own error suggests. f44 built fine because
  its macros did not check.

* Mon Jul 27 2026 Morgan Hough <morgan.hough@gmail.com> - 0.4.0-1
- Initial package. Required by 3D Slicer's EvolutionarySRep module, whose
  EvolutionarySRepUtil bootstrap otherwise attempts a network pip install of
  pyacvd at import time.
- Drop the aarch64-only `vtk~=9.5` pin: it is a PyPI-wheel workaround that
  excludes the VTK 9.6.2 this COPR ships.