grextras: create test macro that works w/ tool

1 files changed, 91 insertions, 0 deletions

diff --git a/cmake/Modules/GRASSwig.in.cmake b/cmake/Modules/GRASSwig.in.cmake
new file mode 100644
index 0000000..8be4945
--- /dev/null
+++ b/cmake/Modules/GRASSwig.in.cmake
@@ -0,0 +1,91 @@
+if(DEFINED __INCLUDED_GRAS_SWIG_CMAKE)
+    return()
+endif()
+set(__INCLUDED_GRAS_SWIG_CMAKE TRUE)
+
+include(GRASTool)
+
+########################################################################
+## GRAS_SWIG_TOOL cmake function - export new types for the loader
+##
+## Options:
+## SOURCE - the swig .i file
+## TARGET - target name for the build products
+## DIRECTORY - name of installation directory or ${TARGET}
+## COMPONENT - name of installation component or ${TARGET}
+##
+## External vars:
+## GRAS_SWIG_TOOL_INCLUDES - list of additional include directories
+## GRAS_SWIG_TOOL_LIBRARIES - list of additional libraries to link to
+########################################################################
+function(GRAS_SWIG_TOOL)
+
+    find_package(SWIG)
+    if(NOT SWIG_FOUND)
+        return()
+    endif()
+
+    find_package(PythonLibs)
+    if(NOT PYTHONLIBS_FOUND)
+        return()
+    endif()
+
+    include(CMakeParseArguments)
+    CMAKE_PARSE_ARGUMENTS(GRAS_SWIG_TOOL "" "SOURCE;TARGET;DIRECTORY;COMPONENT" "" ${ARGN})
+
+    #give an install directory if not specified
+    if(NOT GRAS_SWIG_TOOL_DIRECTORY)
+        set(GRAS_SWIG_TOOL_DIRECTORY ${GRAS_SWIG_TOOL_TARGET})
+    endif()
+
+    #give the target a component name if not specified
+    if(NOT GRAS_SWIG_TOOL_COMPONENT)
+        set(GRAS_SWIG_TOOL_COMPONENT ${GRAS_SWIG_TOOL_TARGET})
+    endif()
+
+    #development and framework directories
+    list(APPEND GRAS_SWIG_TOOL_INCLUDES ${CMAKE_CURRENT_SOURCE_DIR})
+    list(APPEND GRAS_SWIG_TOOL_INCLUDES ${PMC_SWIG_INCLUDE_DIRS})
+    list(APPEND GRAS_SWIG_TOOL_INCLUDES ${GRAS_SWIG_INCLUDE_DIRS})
+    list(APPEND GRAS_SWIG_TOOL_LIBRARIES ${PMC_LIBRARIES})
+    list(APPEND GRAS_SWIG_TOOL_LIBRARIES ${GRAS_LIBRARIES})
+
+    #and boost includes as well
+    include_directories(${Boost_INCLUDE_DIRS})
+
+    #setup python includes/libs
+    include_directories(${PYTHON_INCLUDE_PATH})
+    include_directories(${PYTHON_INCLUDE_DIRS})
+    list(APPEND GRAS_SWIG_TOOL_LIBRARIES ${PYTHON_LIBRARIES})
+
+    #include swig generation deps for compiling
+    include_directories(${GRAS_SWIG_TOOL_INCLUDES})
+
+    #set the C++ property on the swig .i file so it builds
+    set_source_files_properties(${GRAS_SWIG_TOOL_SOURCE} PROPERTIES CPLUSPLUS ON)
+
+    #setup swig flags
+    foreach(inc ${GRAS_SWIG_TOOL_INCLUDES})
+        list(APPEND CMAKE_SWIG_FLAGS "-I${inc}")
+    endforeach(inc)
+    set(CMAKE_SWIG_FLAGS -fvirtual -module ${GRAS_SWIG_TOOL_TARGET} ${CMAKE_SWIG_FLAGS})
+
+    #register swig build
+    include(UseSWIG)
+    SWIG_ADD_MODULE(${GRAS_SWIG_TOOL_TARGET} python ${GRAS_SWIG_TOOL_SOURCE})
+    SWIG_LINK_LIBRARIES(${GRAS_SWIG_TOOL_TARGET} ${GRAS_SWIG_TOOL_LIBRARIES})
+
+    #install rules for generated module and py file
+    set(GRAS_TOOL_PYTHON_DIR lib@LIBSUFFIX@/gras/python/${GRAS_SWIG_TOOL_DIRECTORY})
+    install(
+        TARGETS ${SWIG_MODULE_${GRAS_SWIG_TOOL_TARGET}_REAL_NAME}
+        DESTINATION ${GRAS_TOOL_PYTHON_DIR}
+        COMPONENT ${GRAS_SWIG_TOOL_COMPONENT}
+    )
+    install(
+        FILES ${CMAKE_CURRENT_BINARY_DIR}/${GRAS_SWIG_TOOL_TARGET}.py
+        DESTINATION ${GRAS_TOOL_PYTHON_DIR}
+        COMPONENT ${GRAS_SWIG_TOOL_COMPONENT}
+    )
+
+endfunction(GRAS_SWIG_TOOL)