sci-chemistry/openbabel: Resurect opebabel[python]

File ${FILESDIR}/openbabel-python.cmake was accidently removed
by astrum in 3b032e0f3d0d837c2faf2051da6257844e7ced55

Closes: https://bugs.gentoo.org/837254
Package-Manager: Portage-3.0.30, Repoman-3.0.3
Signed-off-by: Alexey Shvetsov <alexxy@gentoo.org>

1 files changed, 104 insertions, 0 deletions

diff --git a/sci-chemistry/openbabel/files/openbabel-python.cmake b/sci-chemistry/openbabel/files/openbabel-python.cmake
new file mode 100644
index 000000000000..425b4656a9d2
--- /dev/null
+++ b/sci-chemistry/openbabel/files/openbabel-python.cmake
@@ -0,0 +1,104 @@
+# The following is a cmake fragment taken from scripts/CMakeLists.txt and
+# edited for Gentoo python multibuild compatibility.
+
+if (PYTHON_BINDINGS)
+	# Tags should be edited to reflect the active python implementation
+	set(EPYTHON @@EPYTHON@@)
+	set(PYTHON_INCUDE_DIR @@PYTHON_INCUDE_DIR@@)
+	set(PYTHON_LIBS @@PYTHON_LIBS@@)
+	set(PYTHON_SITEDIR @@PYTHON_SITEDIR@@)
+
+	include_directories(${PYTHON_INCUDE_DIR})
+
+	add_custom_command(
+		OUTPUT ${CMAKE_SOURCE_DIR}/scripts/${EPYTHON}/openbabel-python.cpp ${CMAKE_SOURCE_DIR}/scripts/${EPYTHON}/openbabel.py
+		COMMAND ${SWIG_EXECUTABLE} -python -c++ -small -O -templatereduce -naturalvar -I${CMAKE_SOURCE_DIR}/include -I${CMAKE_BINARY_DIR}/include -o ${CMAKE_SOURCE_DIR}/scripts/${EPYTHON}/openbabel-python.cpp ${eigen_define} -outdir ${CMAKE_SOURCE_DIR}/scripts/${EPYTHON} ${CMAKE_SOURCE_DIR}/scripts/openbabel-python.i
+		MAIN_DEPENDENCY openbabel-python.i
+		VERBATIM
+	)
+
+	configure_file(${CMAKE_SOURCE_DIR}/scripts/python/openbabel/__init__.py.in
+		${CMAKE_BINARY_DIR}/scripts/${EPYTHON}/openbabel/__init__.py)
+
+	add_library(bindings_python_${EPYTHON} MODULE ${CMAKE_SOURCE_DIR}/scripts/${EPYTHON}/openbabel-python.cpp)
+	target_link_libraries(bindings_python_${EPYTHON} ${PYTHON_LIBS} ${BABEL_LIBRARY})
+
+	set_target_properties(bindings_python_${EPYTHON}
+		PROPERTIES
+		OUTPUT_NAME _openbabel
+		LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/scripts/${EPYTHON}/openbabel
+		PREFIX ""
+		SUFFIX .so )
+
+	add_dependencies(bindings_python_${EPYTHON} openbabel)
+
+	install(TARGETS bindings_python_${EPYTHON}
+		LIBRARY DESTINATION ${PYTHON_SITEDIR}/openbabel
+		COMPONENT bindings_python)
+	install(FILES ${CMAKE_BINARY_DIR}/scripts/${EPYTHON}/openbabel/__init__.py
+		DESTINATION ${PYTHON_SITEDIR}/openbabel
+		COMPONENT bindings_python)
+	install(FILES ${CMAKE_SOURCE_DIR}/scripts/${EPYTHON}/openbabel.py
+		DESTINATION ${PYTHON_SITEDIR}/openbabel
+		COMPONENT bindings_python)
+	install(FILES ${CMAKE_SOURCE_DIR}/scripts/python/openbabel/pybel.py
+		DESTINATION ${PYTHON_SITEDIR}/openbabel
+		COMPONENT bindings_python)
+
+	if (ENABLE_TESTS)
+		# Make sure all module files are together in the same directory for testing
+		add_custom_command(TARGET bindings_python_${EPYTHON} POST_BUILD
+			COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_SOURCE_DIR}/scripts/${EPYTHON}/openbabel.py ${CMAKE_BINARY_DIR}/scripts/${EPYTHON}/openbabel/
+			COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_SOURCE_DIR}/scripts/python/openbabel/pybel.py ${CMAKE_BINARY_DIR}/scripts/${EPYTHON}/openbabel/)
+		set(TEST_SOURCE_DIR ${CMAKE_SOURCE_DIR}/test)
+		# define TESTDATADIR for tests that need input files
+		add_definitions(-DTESTDATADIR="${TEST_SOURCE_DIR}/files/")
+		# define FORMATDIR for location of format plugin binaries
+		set(FORMATDIR "${CMAKE_BINARY_DIR}/lib${LIB_SUFFIX}/")
+		add_definitions(-DFORMATDIR="${FORMATDIR}/")
+		include_directories(${TEST_SOURCE_DIR})
+
+		# The macro is modified from cmake/modules/UsePythonTest.cmake
+		MACRO(ADD_PYTHON_TEST TESTNAME FILENAME)
+			GET_SOURCE_FILE_PROPERTY(loc ${FILENAME} LOCATION)
+			STRING(REGEX REPLACE ";" " " wo_semicolumn "${ARGN}")
+			FILE(WRITE ${CMAKE_BINARY_DIR}/test/${TESTNAME}.cmake
+"
+	MESSAGE(\"${PYTHONPATH}\")
+	EXECUTE_PROCESS(
+		COMMAND ${EPYTHON} ${loc} ${wo_semicolumn}
+		RESULT_VARIABLE import_res
+		OUTPUT_VARIABLE import_output
+		ERROR_VARIABLE  import_output
+	)
+
+	# Pass the output back to ctest
+	IF(import_output)
+		MESSAGE(\${import_output})
+	ENDIF(import_output)
+	IF(import_res)
+		MESSAGE(SEND_ERROR \${import_res})
+	ENDIF(import_res)
+"
+			)
+			ADD_TEST(${TESTNAME} ${CMAKE_COMMAND} -P ${CMAKE_BINARY_DIR}/test/${TESTNAME}.cmake)
+		ENDMACRO(ADD_PYTHON_TEST)
+
+		set(pybindtests
+			bindings
+			_pybel
+			example 
+			obconv_writers
+			cdjsonformat
+			pcjsonformat
+			roundtrip
+			)
+		foreach(pybindtest ${pybindtests})
+			ADD_PYTHON_TEST(pybindtest_${pybindtest}_${EPYTHON} ${TEST_SOURCE_DIR}/test${pybindtest}.py)
+			set_tests_properties(pybindtest_${pybindtest}_${EPYTHON} PROPERTIES
+				ENVIRONMENT "PYTHONPATH=${CMAKE_BINARY_DIR}/scripts/${EPYTHON}:${CMAKE_BINARY_DIR}/lib${LIB_SUFFIX};LD_LIBRARY_PATH=${CMAKE_BINARY_DIR}/scripts/${EPYTHON}:${CMAKE_BINARY_DIR}/lib${LIB_SUFFIX}:\$ENV{LD_LIBRARY_PATH};BABEL_LIBDIR=${CMAKE_BINARY_DIR}/lib${LIB_SUFFIX}/;BABEL_DATADIR=${CMAKE_SOURCE_DIR}/data"
+				FAIL_REGULAR_EXPRESSION "ERROR;FAIL;Test failed"
+			)
+		endforeach(pybindtest ${pybindtests})
+	endif (ENABLE_TESTS)
+endif(PYTHON_BINDINGS)