mirror of https://github.com/ecmwf/eccodes.git
101 lines
3.7 KiB
CMake
101 lines
3.7 KiB
CMake
if( HAVE_PYTHON )
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ecbuild_find_python( VERSION 2.5)
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#find_package( SWIG )
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#if( SWIG_FOUND )
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# include( ${SWIG_USE_FILE} )
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#endif()
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# check for Numpy
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find_package( NumPy )
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###############################################################################
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# swig python interface
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#if( HAVE_PYTHON AND SWIG_FOUND AND PYTHONLIBS_FOUND )
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if( HAVE_PYTHON AND PYTHONLIBS_FOUND )
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set(PYTHON_DEST "${INSTALL_LIB_DIR}/python${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR}/site-packages/eccodes" )
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file( RELATIVE_PATH relative_rpath "${CMAKE_INSTALL_PREFIX}/${PYTHON_DEST}" "${${PNAME}_FULL_INSTALL_LIB_DIR}" )
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# debug_var( relative_rpath )
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ecbuild_append_to_rpath( ${relative_rpath} )
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ecbuild_append_to_rpath( "../../lib" ) # for ctest to find the libs
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# preparing for generating setup.py -- this may not be needed as cmake can do the swig + shared libs without libtool
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if( NUMPY_FOUND )
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set( DATA_HANDLER "numpy" )
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else()
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set( DATA_HANDLER "array" )
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endif()
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set( _swig_c_wrapper swig_wrap_${DATA_HANDLER}.c )
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set( _swig_py_wrapper swig_wrap_${DATA_HANDLER}.py )
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set( BUILD_DIR "${PROJECT_SOURCE_DIR}" ) # setup.py assumes build_dir is same as source_dir -- not true for cmake builds
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set( LIB_PNG "${HAVE_LIBPNG}" )
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set( LIB_JASPER ${HAVE_LIBJASPER} )
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if( HAVE_LIBJASPER )
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get_filename_component(JASPER_DIR ${JASPER_INCLUDE_DIR} PATH )
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endif()
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set( LIB_OPENJPEG ${HAVE_LIBOPENJPEG} )
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if( HAVE_LIBOPENJPEG )
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get_filename_component(OPENJPEG_DIR ${OPENJPEG_INCLUDE_DIR} PATH )
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endif()
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include_directories( ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR} ${PYTHON_INCLUDE_DIRS} )
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configure_file( setup.py.in setup.py )
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# compile swig interface
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set(CMAKE_SWIG_FLAGS "")
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include_directories( ${PYTHON_INCLUDE_PATH} )
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set_source_files_properties( gribapi_swig.i PROPERTIES C ON )
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if( NUMPY_FOUND )
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set( CMAKE_SWIG_FLAGS "-DNUMPY" )
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include_directories( ${NUMPY_INCLUDE_DIRS} )
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endif()
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# Invoke swig to generate the C wrapper
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# swig_add_module( gribapi_swig python grib_interface.h grib_interface.c gribapi_swig.i )
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# swig_link_libraries( gribapi_swig grib_api ${PYTHON_LIBRARIES} )
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####### Do not invoke swig. Use our own generated C wrapper file ######
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ecbuild_add_library(TARGET _gribapi_swig
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TYPE SHARED
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NOINSTALL
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SOURCES grib_interface.h grib_interface.c ${_swig_c_wrapper}
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LIBS eccodes ${PYTHON_LIBRARIES} )
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# Don't use the lib prefix. This is needed for the python case where a _modulename.so is generated
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set_target_properties(_gribapi_swig PROPERTIES PREFIX "")
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# Copy the wrapper python file to build area
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set( _swig_py gribapi_swig.py )
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add_custom_command(
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OUTPUT ${_swig_py}
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COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/${_swig_py_wrapper} ${CMAKE_CURRENT_BINARY_DIR}/${_swig_py}
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DEPENDS _gribapi_swig
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)
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add_custom_target(copy_swig_py ALL DEPENDS ${_swig_py})
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#######################
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install(TARGETS _gribapi_swig DESTINATION ${PYTHON_DEST} )
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install(FILES ${CMAKE_CURRENT_BINARY_DIR}/gribapi_swig.py DESTINATION ${PYTHON_DEST})
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install(FILES gribapi.py DESTINATION ${PYTHON_DEST})
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install(FILES eccodes.py DESTINATION ${PYTHON_DEST})
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endif()
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endif()
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