100 lines
3.2 KiB
CMake
100 lines
3.2 KiB
CMake
set(target_prefix scratch_)
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function(create_scratch source_files)
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# Return early if no sources in the subdirectory
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list(LENGTH source_files number_sources)
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if(number_sources EQUAL 0)
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return()
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endif()
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# If the scratch has more than a source file, we need to find the source with
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# the main function
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set(scratch_src)
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foreach(source_file ${source_files})
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file(READ ${source_file} source_file_contents)
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string(REGEX MATCHALL "main[(| (]" main_position "${source_file_contents}")
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if(CMAKE_MATCH_0)
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set(scratch_src ${source_file})
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endif()
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endforeach()
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if(NOT scratch_src)
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return()
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endif()
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# Get parent directory name
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get_filename_component(scratch_dirname ${scratch_src} DIRECTORY)
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string(REPLACE "${CMAKE_CURRENT_SOURCE_DIR}" "" scratch_dirname
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"${scratch_dirname}"
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)
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string(REPLACE "/" "_" scratch_dirname "${scratch_dirname}")
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# Get source name
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get_filename_component(scratch_name ${scratch_src} NAME_WE)
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set(target_prefix scratch_)
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if(scratch_dirname)
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# Join the names together if dirname is not the scratch folder
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set(target_prefix scratch${scratch_dirname}_)
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endif()
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# Get source absolute path and transform into relative path
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get_filename_component(scratch_src ${scratch_src} ABSOLUTE)
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get_filename_component(scratch_absolute_directory ${scratch_src} DIRECTORY)
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string(REPLACE "${PROJECT_SOURCE_DIR}" "${CMAKE_OUTPUT_DIRECTORY}"
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scratch_directory ${scratch_absolute_directory}
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)
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add_executable(${target_prefix}${scratch_name} "${source_files}")
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if(${NS3_STATIC})
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target_link_libraries(
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${target_prefix}${scratch_name} ${LIB_AS_NEEDED_PRE_STATIC}
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${lib-ns3-static}
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)
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else()
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target_link_libraries(
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${target_prefix}${scratch_name} ${LIB_AS_NEEDED_PRE} "${ns3-libs}" "${ns3-contrib-libs}"
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"${ns3-external-libs}" ${LIB_AS_NEEDED_POST}
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)
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endif()
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set_runtime_outputdirectory(
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${scratch_name} ${scratch_directory}/ ${target_prefix}
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)
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endfunction()
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# Scan *.cc files in ns-3-dev/scratch and build a target for each
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file(GLOB single_source_file_scratches CONFIGURE_DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/[^.]*.cc)
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foreach(scratch_src ${single_source_file_scratches})
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create_scratch(${scratch_src})
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endforeach()
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# Scan *.cc files in ns-3-dev/scratch subdirectories and build a target for each
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# subdirectory
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file(
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GLOB_RECURSE scratch_subdirectories
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CONFIGURE_DEPENDS
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LIST_DIRECTORIES true
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${CMAKE_CURRENT_SOURCE_DIR}/**
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)
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# Filter out files
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foreach(entry ${scratch_subdirectories})
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if(NOT (IS_DIRECTORY ${entry}))
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list(REMOVE_ITEM scratch_subdirectories ${entry})
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endif()
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endforeach()
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foreach(subdir ${scratch_subdirectories})
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if(EXISTS ${subdir}/CMakeLists.txt)
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# If the subdirectory contains a CMakeLists.txt file
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# we let the CMake file manage the source files
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#
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# Use this if you want to link to external libraries
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# without creating a module
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add_subdirectory(${subdir})
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else()
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# Otherwise we pick all the files in the subdirectory
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# and create a scratch for them automatically
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file(GLOB scratch_sources CONFIGURE_DEPENDS ${subdir}/[^.]*.cc)
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create_scratch("${scratch_sources}")
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endif()
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endforeach()
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