[gentoo-commits] proj/sci:master commit in: dev-python/cadquery-ocp/

["Andrew Ammerlaan" <andrewammerlaan@gentoo.org>]

commit:     2afa2bdc14c6d591e1e0f0061f3d757eb5143d5f
Author:     leycec <leycec <AT> gmail <DOT> com>
AuthorDate: Tue Jul 20 05:30:07 2021 +0000
Commit:     Andrew Ammerlaan <andrewammerlaan <AT> gentoo <DOT> org>
CommitDate: Tue Jul 27 09:48:56 2021 +0000
URL:        https://gitweb.gentoo.org/proj/sci.git/commit/?id=2afa2bdc

dev-python/cadquery-ocp: add

add OCP, a mandatory dependency of CadQuery

Signed-off-by: Cecil Curry <leycec <AT> gmail.com>
Closes: https://github.com/gentoo/sci/pull/1099
Signed-off-by: Andrew Ammerlaan <andrewammerlaan <AT> gentoo.org>

 .../cadquery-ocp/cadquery-ocp-7.5.2_beta.ebuild    | 171 +++++++++++++++++++++
 dev-python/cadquery-ocp/metadata.xml               |  11 ++
 2 files changed, 182 insertions(+)

diff --git a/dev-python/cadquery-ocp/cadquery-ocp-7.5.2_beta.ebuild b/dev-python/cadquery-ocp/cadquery-ocp-7.5.2_beta.ebuild
new file mode 100644
index 000000000..5133dc09a
--- /dev/null
+++ b/dev-python/cadquery-ocp/cadquery-ocp-7.5.2_beta.ebuild
@@ -0,0 +1,171 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python3_{8..9} )
+
+# OCP uses "python-single-r1" only because VTK uses "python-single-r1".
+inherit check-reqs cmake llvm multiprocessing python-single-r1
+
+MY_PN=OCP
+MY_PV="${PV//_/-}"
+MY_P="${MY_PN}-${MY_PV}"
+OCCT_PV=$(ver_cut 1-3)
+
+DESCRIPTION="Python wrapper for OCCT generated using pywrap"
+HOMEPAGE="https://github.com/CadQuery/OCP"
+SRC_URI="https://github.com/CadQuery/OCP/archive/refs/tags/${MY_PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="Apache-2.0"
+KEYWORDS="~amd64 ~x86"
+SLOT="0"
+REQUIRED_USE="${PYTHON_REQUIRED_USE}"
+
+# CMake and VTK requirements derive from the "OCP/CMakeLists.txt" file
+# generated by the src_prepare() phase.
+BDEPEND=">=dev-util/cmake-3.16"
+RDEPEND="
+	${PYTHON_DEPS}
+	~sci-libs/opencascade-${OCCT_PV}[json,tbb,vtk]
+	>=sci-libs/vtk-9.0.0[${PYTHON_SINGLE_USEDEP}]
+"
+DEPEND="${RDEPEND}
+	$(python_gen_cond_dep '
+		>=dev-python/cadquery-pywrap-'${OCCT_PV}'_rc0[${PYTHON_USEDEP}]')
+"
+
+S="${WORKDIR}/${MY_P}"
+
+# Explicitly set ${BUILD_DIR} to avoid eclass conflicts.
+CMAKE_IN_SOURCE_BUILD=True
+
+# Ensure the path returned by get_llvm_prefix() contains clang.
+llvm_check_deps() {
+	has_version -r "sys-devel/clang:${LLVM_SLOT}"
+}
+
+cadquery-ocp_check_reqs() {
+	CHECKREQS_DISK_BUILD=1300M check-reqs_pkg_${EBUILD_PHASE}
+}
+
+pkg_pretend() {
+	cadquery-ocp_check_reqs
+}
+
+pkg_setup() {
+	cadquery-ocp_check_reqs
+	llvm_pkg_setup
+	python-single-r1_pkg_setup
+}
+
+# OCP currently requires manual configuration, compilation, and installation
+# loosely inspired by the conda-specific "build-bindings-job.yml" file.
+#
+# Note that the cmake_src_prepare() function called below handles user patches.
+src_prepare() {
+	# Most recently installed version of Clang.
+	local _CLANG_VERSION="$(CPP=clang clang-fullversion)"
+
+	# Most recently installed version (excluding trailing patch) of VTK.
+	local _VTK_VERSION="$(best_version -r sci-libs/vtk)"
+	_VTK_VERSION="$(ver_cut 1-2 "${_VTK_VERSION##sci-libs/vtk}")"
+
+	# Absolute dirname of the most recently installed Clang include directory,
+	# mimicing similar logic in the "dev-python/shiboken2" ebuild. See also:
+	#     https://bugs.gentoo.org/619490
+	local _CLANG_INCLUDE_DIR="${EPREFIX}/usr/lib/clang/${_CLANG_VERSION}/include"
+
+	# Absolute filename of the most recently installed Clang shared library.
+	local _CLANG_LIB_FILE="$(get_llvm_prefix)/lib64/libclang.so"
+
+	# Absolute dirname of OCCT's include and shared library directories.
+	local _OCCT_INCLUDE_DIR="${EPREFIX}/usr/include/opencascade-${OCCT_PV}"
+	local _OCCT_LIB_DIR="${EPREFIX}/usr/lib64/opencascade-${OCCT_PV}"
+
+	# Absolute dirname of VTK's include directory,
+	local _VTK_INCLUDE_DIR="${EPREFIX}/usr/include/vtk-${_VTK_VERSION}"
+
+	# Ensure the above paths exist as a crude sanity test.
+	test -d "${_CLANG_INCLUDE_DIR}" || die "${_CLANG_INCLUDE_DIR} not found."
+	test -f "${_CLANG_LIB_FILE}"    || die "${_CLANG_LIB_FILE} not found."
+	test -d "${_OCCT_INCLUDE_DIR}"  || die "${_OCCT_INCLUDE_DIR} not found."
+	test -d "${_OCCT_LIB_DIR}"      || die "${_OCCT_LIB_DIR} not found."
+	test -d "${_VTK_INCLUDE_DIR}"   || die "${_VTK_INCLUDE_DIR} not found."
+
+	# "dev-python/clang-python" atom targeting this Clang version.
+	local _CLANG_PYTHON_ATOM="dev-python/clang-python-${_CLANG_VERSION}"
+
+	# Ensure "dev-python/clang-python" targets this Clang version.
+	has_version -r "=${_CLANG_PYTHON_ATOM}" ||
+		die "${_CLANG_PYTHON_ATOM} not installed."
+
+	# Remove all vendored subdirectories.
+	rm -r conda opencascade pywrap || die
+
+	# Inject a symlink to OCCT's include directory.
+	ln -s "${_OCCT_INCLUDE_DIR}" opencascade || die
+
+	# Generate OCCT bindings in the "OCP/" subdirectory.
+	${EPYTHON} -m bindgen \
+		--verbose \
+		--njobs $(makeopts_jobs) \
+		--libclang "${_CLANG_LIB_FILE}" \
+		--include "${_CLANG_INCLUDE_DIR}" \
+		--include "${_VTK_INCLUDE_DIR}" \
+		all ocp.toml || die
+
+	# Remove the source "FindOpenCascade.cmake" after generating bindings,
+	# which copied that file to the target "OCP/FindOpenCascade.cmake".
+	rm FindOpenCascade.cmake || die
+
+	#FIXME: Submit an issue recommending upstream replace their
+	#non-working "OCP/FindOpenCascade.cmake" file with a standard top-level
+	#"CMakeLists.txt" file that finds dependency paths: e.g., via @waebbl
+	#    find_package(vtk 9 CONFIG REQUIRED)
+	#    if(TARGET VTK::VTK)
+	#      get_target_property(VTK_INCLUDE_DIRS VTK::VTK INTERFACE_INCLUDE_DIRECTORIES)
+	#    endif()
+
+	# Replace all hardcoded paths in "OCP/FindOpenCascade.cmake" with
+	# standard OCCT paths derived above. That file is both fundamentally
+	# broken and useless, as the ${CASROOT} environment variable and
+	# "/usr/lib64/cmake/opencascade-${PV}/OpenCASCADEConfig.cmake" file
+	# already reliably identify all requisite OpenCASCADE paths. Failure to
+	# patch this file results in src_configure() failures resembling:
+	#     -- Could NOT find OPENCASCADE (missing: OPENCASCADE_LIBRARIES)
+	sed -i \
+		-e 's~$ENV{CONDA_PREFIX}/include/opencascade\b~'${_OCCT_INCLUDE_DIR}'~' \
+		-e 's~$ENV{CONDA_PREFIX}/lib\b~'${_OCCT_LIB_DIR}'~' \
+		-e 's~$ENV{CONDA_PREFIX}/Library/\(lib\|include/opencascade\)~~' \
+		OCP/FindOpenCascade.cmake || die
+
+	# Patch the "OCP/CMakeLists.txt" file generated by "bindgen" above, passed
+	# as an absolute path both here and below to minimize eclass issues.
+	CMAKE_USE_DIR="${S}/OCP" cmake_src_prepare
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-B "${S}/OCP.build"
+		-DPYTHON_EXECUTABLE="${PYTHON}"
+		-Wno-dev
+	)
+
+	CMAKE_USE_DIR="${S}/OCP" cmake_src_configure
+}
+
+src_compile() {
+	CMAKE_USE_DIR="${S}/OCP.build" cmake_src_compile
+}
+
+# OCP currently ships no test suite, so we synthesize a crude import unit test.
+src_test() {
+	PYTHONPATH="${S}/OCP.build" ${EPYTHON} -c \
+		'from OCP.gp import gp_Vec, gp_Ax1, gp_Ax3, gp_Pnt, gp_Dir, gp_Trsf, gp_GTrsf, gp, gp_XYZ'
+}
+
+src_install() {
+	python_moduleinto .
+	python_domodule "${S}/OCP.build/"OCP*.so
+}

diff --git a/dev-python/cadquery-ocp/metadata.xml b/dev-python/cadquery-ocp/metadata.xml
new file mode 100644
index 000000000..a8bf5ee04
--- /dev/null
+++ b/dev-python/cadquery-ocp/metadata.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="project">
+		<email>sci@gentoo.org</email>
+		<name>Gentoo Science Project</name>
+	</maintainer>
+	<upstream>
+		<remote-id type="github">CadQuery/OCP</remote-id>
+	</upstream>
+</pkgmetadata>