53 lines
1.9 KiB
CMake
53 lines
1.9 KiB
CMake
#message("Adding dependencies")
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#message("CMAKE_D_FLAGS: ${CMAKE_D_FLAGS} ")
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#message("CMAKE_D_COMPILER: ${CMAKE_D_COMPILER} ")
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#message("include_directories: ${include_directories} ")
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#message("source file ${source_file}")
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#message("dependency file ${dependency_file}")
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separate_arguments(CMAKE_D_FLAGS)
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# TODO
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# need to pass all arguments that are used for building
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# can't I use the build rule somehow
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execute_process(COMMAND ${CMAKE_D_COMPILER} ${CMAKE_D_FLAGS} ${include_directories} -deps=${dependency_file}.tmp -o- ${source_file})
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#message("executing: ${CMAKE_D_COMPILER} ${CMAKE_D_FLAGS} ${include_directories} -deps=${dependency_file}.tmp -o- ${source_file}")
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if(NOT EXISTS ${dependency_file})
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file(WRITE ${dependency_file} "# Generated by: ${CMAKE_CURRENT_LIST_FILE}\nSET(D_DMD_DEPEND\n)\n\n")
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endif()
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file(READ ${dependency_file}.tmp depend_text)
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#message("DEPENDENCIES: ${depend_text}")
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# extract dependencies
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string(REGEX MATCHALL "\\([^)]*\\)" out ${depend_text})
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string(REGEX MATCHALL "[^()]+" out ${out})
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list(REMOVE_DUPLICATES out)
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list(SORT out)
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foreach(file ${out})
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set(dependencies "${dependencies} \"${file}\"\n")
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endforeach()
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# write new dependencies to temporary file
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file(WRITE ${dependency_file}.tmp "# Generated by: ${CMAKE_CURRENT_LIST_FILE}\nSET(D_DMD_DEPEND\n ${dependencies})\n\n")
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# get old dependencies
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include(${dependency_file})
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set(old_dependencies ${D_DMD_DEPEND})
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# and the new dependencies from temporary file
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include(${dependency_file}.tmp)
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# did the dependencies change?
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if(NOT "${D_DMD_DEPEND}" STREQUAL "${old_dependencies}")
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message("Dependencies changed. Need to build.")
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execute_process(COMMAND ${CMAKE_COMMAND} -E touch ${source_file})
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endif()
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execute_process(COMMAND ${CMAKE_COMMAND} -E copy ${dependency_file}.tmp ${dependency_file})
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execute_process(COMMAND ${CMAKE_COMMAND} -E remove ${dependency_file}.tmp)
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#message("Finished dependencies")
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