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pkgname=python-ocp
pkgver=7.7.2.0
pkgrel=4
pkgdesc="Python wrapper for OCCT generated using pywrap"
arch=(x86_64)
url=https://github.com/CadQuery/OCP
license=('Apache')
depends=(
python
'opencascade=1:7.7.2'
'vtk=9.3.0'
fmt
glew
clang15
)
makedepends=(
git
clang
llvm
python-joblib
python-click
python-pandas
python-path
pybind11
ninja
cmake
python-tqdm
python-toposort
python-schema
rapidjson
python-jinja
python-toml
openmpi
python-pyparsing
qt5-base
qt5-declarative
openxr
openvr
python-mpi4py
boost
pdal
liblas
adios2
ffmpeg
libharu
verdict
eigen
utf8cpp
glew
fast_float
python-lief
python-logzero
python-clang15
)
conflicts=(python-ocp-git)
#_fragment="#tag=${pkgver}"
_fragment="#commit=7bef13a1525610a8c208537e1c6793cf71d27334"
source=(
git+https://github.com/CadQuery/OCP.git${_fragment}
git+https://github.com/CadQuery/pywrap.git
)
options=(!lto) # comment this line out if you've got better than 32 GB of ram to spare for the linking step
sha256sums=('SKIP'
'SKIP')
# needed to prevent memory exhaustion, 10 seems to consume about 14.5 GiB in the build step
_n_parallel_build_jobs=1
#_n_parallel_build_jobs=10 # consumes ~14.5 GiB of ram
#_n_parallel_build_jobs=30 # consumes ~30 GiB of ram
#_n_parallel_build_jobs=60 # consumes ~34 GiB of ram
#_n_parallel_build_jobs=$(nproc --ignore 2)
# pick where opencascade is installed
#_opencascade_install_prefix="/opt/opencascade-cadquery/usr"
_opencascade_install_prefix="/usr"
prepare(){
cd OCP
git submodule init
git config submodule.pywrap.url "${srcdir}"/pywrap
git -c protocol.file.allow=always submodule update
sed "s,-i \${CLANG_INSTALL_PREFIX}/lib/clang/\${LLVM_VERSION}/include/,-i \"$(clang -print-resource-dir)/include\"," -i CMakeLists.txt
sed "s,-n \${N_PROC},--njobs ${_n_parallel_build_jobs}," -i CMakeLists.txt
# use upstream's headers, not whatever is shipped here
rm -r opencascade
ln -s "${_opencascade_install_prefix}"/include/opencascade .
# ensure any opencascade at /usr isn't used here
sed 's|CONDA_PREFIX|_opencascade_install_prefix|g' -i pywrap/FindOpenCascade.cmake
# fix up VTK deps
curl --silent https://patch-diff.githubusercontent.com/raw/CadQuery/OCP/pull/141.patch | patch -p1
# disable progress bars
cd pywrap
curl --silent https://patch-diff.githubusercontent.com/raw/greyltc/pywrap/pull/1.patch | patch -p1
}
build() {
cd OCP
# sneak in python-clang15
local site_packages=$(python -c "import site; print(site.getsitepackages()[0])")
ln -s "${site_packages}"/clang15 clang
export PYTHONPATH="${srcdir}/OCP:${PYTHONPATH}"
msg2 "Setting up build, dumping symbols, then generating bindings..."
PATH="/usr/lib/llvm15/bin/:${PATH}" LD_LIBRARY_PATH="/usr/lib/llvm15/lib:${LD_LIBRARY_PATH}" cmake \
-W no-dev \
-G Ninja \
-D CMAKE_BUILD_TYPE=Release \
-B build_dir \
-S .
msg2 "Building OCP..."
cmake --build build_dir -j${_n_parallel_build_jobs}
msg2 "OCP built."
}
check() {
cd OCP
# prevent the current environment from skewing the testing
# comment these if using community occt package
#unset "${!CSF@}"
#unset "${!DRAW@}"
#unset CASROOT
LD_DEBUG=libs PYTHONPATH="${srcdir}/build_dir/OCP" python -c "from OCP import *; import OCP; print(OCP.__spec__)"
}
package(){
cd OCP
install -Dt "${pkgdir}$(python -c 'import sys; print(sys.path[-1])')" -m644 build_dir/OCP/OCP.*.so
install -Dt "${pkgdir}/usr/share/licenses/${pkgname}" -m644 LICENSE
}
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