function (patch_compile_commands input output_var) set(ENTRY_FILE ${CMAKE_BINARY_DIR}/compile_commands_entry) set(RESULT "[]") string(JSON COUNT LENGTH "${input}") message("Total commands need to patch: " ${COUNT}) math(EXPR COUNT "${COUNT} - 1") foreach(INDEX RANGE ${COUNT}) message("Patching: " ${INDEX} "/" ${COUNT}) string(JSON ORIGINAL_COMMAND GET "${input}" ${INDEX} command) string(JSON WORKING_DIR GET "${input}" ${INDEX} directory) string(FIND "${ORIGINAL_COMMAND}" " " COMMAND_FIRST_SPACE) string(SUBSTRING "${ORIGINAL_COMMAND}" 0 ${COMMAND_FIRST_SPACE} COMMAND_COMPILER) string(SUBSTRING "${ORIGINAL_COMMAND}" ${COMMAND_FIRST_SPACE} -1 ORIGINAL_COMMAND_ARGS) string(CONCAT COMMAND_GENERATE "${COMMAND_COMPILER}" " -MJ ${ENTRY_FILE}" "${ORIGINAL_COMMAND_ARGS}") #message("Run: " "${COMMAND_GENERATE}") execute_process(COMMAND sh -c "${COMMAND_GENERATE}" WORKING_DIRECTORY "${WORKING_DIR}") file(READ ${ENTRY_FILE} ENTRY) string(JSON RESULT SET "${RESULT}" ${INDEX} "${ENTRY}") endforeach() set(${output_var} "${RESULT}" PARENT_SCOPE) endfunction() function (patch_compile_commands_file) file(READ ${CMAKE_BINARY_DIR}/compile_commands.json COMPILE_COMMANDS) patch_compile_commands("${COMPILE_COMMANDS}" COMPILE_COMMANDS_PATCHED) file(WRITE ${CMAKE_BINARY_DIR}/compile_commands-patched.json "${COMPILE_COMMANDS_PATCHED}") endfunction()