# brainvisa-cmake -- the CMake build system of the BrainVISA suite (AIMS,
# Anatomist, Axon, Morphologist, ...). Every BrainVISA component is configured
# through its macros (BRAINVISA_PROJECT, BRAINVISA_FIND_PACKAGE,
# BRAINVISA_ADD_SIP_PYTHON_MODULE, ...), so this is a build dependency only.
#
# Layout facts the spec depends on (checked against the pinned commit):
# - Upstream's CMake install puts the modules in
#   share/brainvisa-cmake-6.0/{cmake,share,scripts}. find_package(brainvisa-cmake)
#   finds the config there through CMake's <prefix>/share/<name>*/cmake/ search,
#   and the SIP macro reads its pyproject.toml template from ../share relative
#   to the config, so the tree is kept exactly as upstream installs it.
# - The same install also drops bv_maker, its Python package and a bash
#   completion into $prefix/bin, $prefix/python and $prefix/etc. bv_maker is
#   upstream's developer workflow (git checkouts, pixi environments, Jenkins);
#   packaged builds call CMake directly, so it is not shipped. bv_sip4make is:
#   the SIP binding rules run it to generate the bindings.
# - No tags since 5.1.2; BrainVISA 6.0 builds from master.

%global commit      850b6f3c2d80c6afcde81d47971d34bb55892ddc
%global shortcommit %(c=%{commit}; echo ${c:0:7})
%global snapdate    20260918
%global bvver       6.0

Name:           brainvisa-cmake
Version:        6.0.0^%{snapdate}git%{shortcommit}
Release:        3%{?dist}
Summary:        CMake build system of the BrainVISA neuroimaging suite

License:        CECILL-B
URL:            https://github.com/brainvisa/brainvisa-cmake
Source0:        %{url}/archive/%{commit}/brainvisa-cmake-%{shortcommit}.tar.gz
# bv_sip4make: read pyproject.toml with tomllib (Fedora has no python3-toml);
# FindSIP: fall back to the value of SIP_EXECUTABLE, not the literal string
# "$SIP_EXECUTABLE"; FindLibKDTree: look for kdtree++/kdtree.hpp, so the
# system libkdtree++ is found and AIMS stops installing its bundled copy;
# FindQtVersion: take moc/lupdate/lrelease from Qt 6's CMake targets (the
# qmake-relative search finds none on Fedora); FindSIP: create include/
# before sip-module --sip-h; BRAINVISA_ADD_MOC_FILES: pass the compiler's
# predefined macros to moc, without which Fedora's multilib qconfig.h makes
# moc take Qt-5 branches. The last three were needed to build Anatomist
# against the installed AIMS. All on an upstream branch by the packager.
Patch0:         brainvisa-cmake-sip4make-fixes.patch

BuildArch:      noarch
BuildRequires:  cmake
BuildRequires:  make
BuildRequires:  gcc-c++
BuildRequires:  python3-devel

Requires:       cmake
# bv_sip4make wraps sip-build (SIP 6) for the BrainVISA binding rules.
Requires:       sip6
Requires:       python3

%description
brainvisa-cmake is the CMake build system shared by the components of the
BrainVISA neuroimaging suite: AIMS, Anatomist, Axon, Morphologist and the
others. It provides the CMake macros those projects are configured with, the
find modules for their dependencies, and bv_sip4make, the wrapper the SIP
binding rules use to generate the Python bindings.

It is needed only to build BrainVISA components.

%prep
%autosetup -n brainvisa-cmake-%{commit} -p1

%build
# Unix Makefiles, as upstream builds: the generated rules contain shell
# syntax (if [ -n "$(BRAINVISA_INSTALL_PREFIX)" ]; ...) that Ninja rejects.
%cmake -G "Unix Makefiles" \
       -DBRAINVISA_CMAKE_BUILD_TYPE=brainvisa-cmake-only \
       -DDISABLE_FILE_INSTALLATION_LIST=YES
%cmake_build

%install
%cmake_install
# Keep the build system and the SIP wrapper; drop the bv_maker workflow.
rm -rf %{buildroot}%{_prefix}/python %{buildroot}%{_prefix}/etc
find %{buildroot}%{_bindir} -mindepth 1 ! -name bv_sip4make -delete
sed -i '1s|^#!.*|#!%{python3}|' %{buildroot}%{_bindir}/bv_sip4make
chmod 0755 %{buildroot}%{_bindir}/bv_sip4make
# Helper scripts are run by CMake with an interpreter; no shebang needed.
find %{buildroot}%{_datadir}/brainvisa-cmake-%{bvver} -name '*.py' -exec sed -i '1{/^#!/d}' {} +
find %{buildroot}%{_datadir}/brainvisa-cmake-%{bvver} -type f -exec chmod 0644 {} +

%check
d=%{buildroot}%{_datadir}/brainvisa-cmake-%{bvver}
test -f $d/cmake/brainvisa-cmake-config.cmake
test -f $d/cmake/brainvisa-compilation.cmake
test -f $d/cmake/modules/FindSIP.cmake
test -f $d/share/pyproject.toml.in
grep -q 'set( SIP4MAKE_EXECUTABLE "${SIP_EXECUTABLE}"' $d/cmake/modules/FindSIP.cmake
grep -q 'import tomllib' %{buildroot}%{_bindir}/bv_sip4make
# A project can find the build system from the installed tree.
mkdir check && cd check
cat > CMakeLists.txt <<'EOF'
cmake_minimum_required(VERSION 3.20)
project(bvcheck CXX)
find_package(brainvisa-cmake REQUIRED)
message(STATUS "brainvisa-cmake found in ${brainvisa-cmake_DIR}")
EOF
cmake -S . -B b -DCMAKE_PREFIX_PATH=%{buildroot}%{_prefix} > cmake.log 2>&1 || { cat cmake.log; exit 1; }
grep "brainvisa-cmake found in %{buildroot}%{_datadir}/brainvisa-cmake-%{bvver}/cmake" cmake.log

%files
%license LICENCE.txt
%doc README.md
%{_bindir}/bv_sip4make
%{_datadir}/brainvisa-cmake-%{bvver}/

%changelog
* Thu Oct 15 2026 Morgan Hough <morgan.hough@gmail.com> - 6.0.0^20260918git850b6f3-3
- Qt 6 tools found through Qt's CMake targets, sip.h generated into a
  fresh build tree, and moc given the compiler's predefined macros; needed
  to build Anatomist on its own against brainvisa-aims-devel.

* Thu Oct 15 2026 Morgan Hough <morgan.hough@gmail.com> - 6.0.0^20260918git850b6f3-2
- FindLibKDTree looked for kdtree.hpp directly under /usr/include and never
  found Fedora's libkdtree++; brainvisa-aims-devel then shipped AIMS's
  bundled copy in /usr/include/kdtree++, conflicting with libkdtree++-devel.

* Thu Oct 15 2026 Morgan Hough <morgan.hough@gmail.com> - 6.0.0^20260918git850b6f3-1
- Initial package: the BrainVISA build system and bv_sip4make, for building
  AIMS and Anatomist. Two fixes submitted upstream (tomllib in bv_sip4make,
  the FindSIP fallback).