FixCompileCommands.cmake

project(Nostalgia)

include(Sources.cmake)
set(CMAKE_COMPILE_COMMANDS ${CMAKE_CURRENT_BINARY_DIR}/compile_commands.json)
set(FIXED_COMPILE_COMMANDS ${CMAKE_CURRENT_SOURCE_DIR}/compile_commands.json)

set(FIX_PREFIX "\n{\n\t\"directory\": \"${CMAKE_CURRENT_BINARY_DIR}\",")
set(FIX_SUFFIX "\n\t\"output\": \"this doesn't matter at all\"\n},")
set(ALL_NOSTALGIA_HEADERS ${NOSTALGIA_HEADERS} ${NOSTALGIA_PCH_HEADERS})

function(fix_compile_commands)
    file(READ ${CMAKE_COMPILE_COMMANDS} COMPILE_COMMANDS_STR)
    string(REGEX REPLACE "(command\": \"[^\n ]+)([^\n]+gl_renderer_api.cpp)" "\\1 -DCLANGD_KEEPS_CRASHING_HERE\\2" COMPILE_COMMANDS_STR_CLANGD_FIX ${COMPILE_COMMANDS_STR})
    file(WRITE ${FIXED_COMPILE_COMMANDS} ${COMPILE_COMMANDS_STR_CLANGD_FIX})
    if("${CMAKE_BUILD_TYPE}" STREQUAL "Debug")
        set(VERSION_FLAG -DNOSTALGIA_DEBUGGING)
    endif()
    set(OUT_DIR Nostalgia)
    if(${CMAKE_CXX_COMPILER_ID} EQUAL Clang)
        set(FIX_COMMAND_LINE "\n\t\"command\": \"${CMAKE_CXX_COMPILER} ${VERSION_FLAG} -Xclang -include-pch -Xclang ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/${OUT_DIR}.dir/cmake_pch.hxx.pch -Xclang -include -Xclang ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/${OUT_DIR}.dir/cmake_pch.hxx\",")
    else()
        set(FIX_COMMAND_LINE "\n\t\"command\": \"${CMAKE_CXX_COMPILER} ${VERSION_FLAG} -include ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/${OUT_DIR}.dir/cmake_pch.hxx\",")
    endif()
    foreach(HEADER ${ALL_NOSTALGIA_HEADERS})
        set(FIX_FILE_LINE "\n\t\"file\": \"${HEADER}\",")
        file(APPEND ${FIXED_COMPILE_COMMANDS} ${FIX_PREFIX} ${FIX_COMMAND_LINE} ${FIX_FILE_LINE} ${FIX_SUFFIX})
    endforeach()
    file(APPEND ${FIXED_COMPILE_COMMANDS} "\n")
endfunction()