qmk_firmware/cmake/ResolveKeyboard.cmake

function(resolve_keyboard KEYBOARD KEYBOAD_FOLDER_ABS_STR)
    message(STATUS "Resolving ${KEYBOARD}")
    if(EXISTS "${CMAKE_SOURCE_DIR}/keyboards/${KEYBOARD}")
        message(STATUS "Found in repo: ${KEYBOARD}")
        set(${KEYBOAD_FOLDER_ABS_STR} "${CMAKE_SOURCE_DIR}/keyboards/${KEYBOARD}" PARENT_SCOPE)
        return()
    endif()
    if(EXISTS "${CMAKE_SOURCE_DIR}/build/keyboard_repository/${KEYBOARD}")
        message(STATUS "Already checked out: ${KEYBOARD}")
        set(${KEYBOAD_FOLDER_ABS_STR} "${CMAKE_SOURCE_DIR}/build/keyboard_repository/${KEYBOARD}" PARENT_SCOPE)
        return()
    endif()
    file(READ ${CMAKE_SOURCE_DIR}/data/keyboards.json KEYBOARDS_JSON)
    string(JSON KEYBOARD_SLUG ERROR_VARIABLE JSON_ERROR GET ${KEYBOARDS_JSON} ${KEYBOARD})
    if(${JSON_ERROR} STREQUAL "NOTFOUND")
        message(STATUS "Found ${KEYBOARD_SLUG}")
        if(${KEYBOARD_SLUG} MATCHES "^@([0-9a-zA-Z_]+/[0-9a-zA-Z_]+)")
            # keyboard slug is mapped to a github repo
            set(GIT_SLUG ${CMAKE_MATCH_1})
            # string(MAKE_C_IDENTIFIER ${KEYBOARD} KEYBOARD_NAME)
            message(STATUS "Cloning ${GIT_SLUG}")
            find_package(Git QUIET)
            if(GIT_FOUND)
                file(MAKE_DIRECTORY "${CMAKE_SOURCE_DIR}/build/keyboard_repository/${KEYBOARD}")
                execute_process(COMMAND ${GIT_EXECUTABLE} clone "https://github.com/${GIT_SLUG}.git" .
                                WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}/build/keyboard_repository/${KEYBOARD}"
                                RESULT_VARIABLE GIT_SUBMOD_RESULT)
                if(NOT GIT_SUBMOD_RESULT EQUAL "0")
                    message(FATAL_ERROR "git clone failed with ${GIT_SUBMOD_RESULT}")
                endif()
            else()
                message("Git not found - skipping submodule update")
            endif()
            set(${KEYBOAD_FOLDER_ABS_STR} "${CMAKE_SOURCE_DIR}/build/keyboard_repository/${KEYBOARD}" PARENT_SCOPE)
        else()
            message(FATAL_ERROR "Didn't match")
        endif()
    else()
        message(FATAL_ERROR "Couldn't find")
        # set(${RESULT_STR} "NOTFOUND" PARENT_SCOPE)
    endif()
endfunction()

function(resolve_config_h KEYBOARD_FOLDER_ABS CONFIG_H_STR)
    if(${IS_KEYBOARDS_FOLDER})
        file(RELATIVE_PATH RELATIVE_KEYBOARD_FOLDER ${QMK_KEYBOARDS_FOLDER} ${KEYBOARD_FOLDER_ABS})
        # get the deepest config.h
        while(NOT ${RELATIVE_KEYBOARD_FOLDER} STREQUAL "")  
            if(EXISTS "${QMK_KEYBOARDS_FOLDER}/${RELATIVE_KEYBOARD_FOLDER}/config.h")
                set(${CONFIG_H_STR} "${QMK_KEYBOARDS_FOLDER}/${RELATIVE_KEYBOARD_FOLDER}/config.h" PARENT_SCOPE)
                return()
            endif()
            get_filename_component(RELATIVE_KEYBOARD_FOLDER ${RELATIVE_KEYBOARD_FOLDER} DIRECTORY)
        endwhile()
        message(FATAL_ERROR "Could not find config.h in ${KEYBOARD_FOLDER_ABS}")
    else()
        if(EXISTS "${KEYBOARD_FOLDER_ABS}/config.h")
            set(${CONFIG_H_STR} "${KEYBOARD_FOLDER_ABS}/config.h" PARENT_SCOPE)
        else()
            message(FATAL_ERROR "Could not find config.h in ${KEYBOARD_FOLDER_ABS}")
        endif()
    endif()
endfunction()

function(resolve_keyboard_h KEYBOARD_FOLDER_ABS KEYBOARD_H_STR)
    if(${IS_KEYBOARDS_FOLDER})
        file(RELATIVE_PATH RELATIVE_KEYBOARD_FOLDER ${QMK_KEYBOARDS_FOLDER} ${KEYBOARD_FOLDER_ABS})
        # get the deepest header
        while(NOT ${RELATIVE_KEYBOARD_FOLDER} STREQUAL "")  
            get_filename_component(LAST_PART ${RELATIVE_KEYBOARD_FOLDER} NAME)
            if(EXISTS "${QMK_KEYBOARDS_FOLDER}/${RELATIVE_KEYBOARD_FOLDER}/${LAST_PART}.h")
                set(${KEYBOARD_H_STR} "${QMK_KEYBOARDS_FOLDER}/${RELATIVE_KEYBOARD_FOLDER}/${LAST_PART}.h" PARENT_SCOPE)
                return()
            endif()
            get_filename_component(RELATIVE_KEYBOARD_FOLDER ${RELATIVE_KEYBOARD_FOLDER} DIRECTORY)
        endwhile()
        message(FATAL_ERROR "Could not find *.h in ${KEYBOARD_FOLDER_ABS}")
    else()
        if(EXISTS "${KEYBOARD_FOLDER_ABS}/keyboard.h")
            set(${KEYBOARD_H_STR} "${KEYBOARD_FOLDER_ABS}/keyboard.h" PARENT_SCOPE)
        else()
            message(FATAL_ERROR "Could not find keyboard.h in ${KEYBOARD_FOLDER_ABS}")
        endif()
    endif()
endfunction()

function(resolve_keymap_c KEYBOARD_FOLDER_ABS KEYMAP_FOLDER KEYMAP_C_STR)
    if(IS_ABSOLUTE ${KEYMAP_FOLDER})
        if(EXISTS "${KEYMAP_FOLDER}/keymap.c")
            set(${KEYMAP_C_STR} "${KEYMAP_FOLDER}/keymap.c" PARENT_SCOPE)
        else()
            message(FATAL_ERROR "Could not find keymap.c in ${KEYMAP_FOLDER}")
        endif()
    else()
        if(${IS_KEYBOARDS_FOLDER})
            file(RELATIVE_PATH RELATIVE_KEYBOARD_FOLDER ${QMK_KEYBOARDS_FOLDER} ${KEYBOARD_FOLDER_ABS})
            # get the deepest keymap.c
            while(NOT ${RELATIVE_KEYBOARD_FOLDER} STREQUAL "")  
                if(EXISTS "${QMK_KEYBOARDS_FOLDER}/${RELATIVE_KEYBOARD_FOLDER}/keymaps/${KEYMAP_FOLDER}/keymap.c")
                    set(${KEYMAP_C_STR} "${QMK_KEYBOARDS_FOLDER}/${RELATIVE_KEYBOARD_FOLDER}/keymaps/${KEYMAP_FOLDER}/keymap.c" PARENT_SCOPE)
                    return()
                endif()
                get_filename_component(RELATIVE_KEYBOARD_FOLDER ${RELATIVE_KEYBOARD_FOLDER} DIRECTORY)
            endwhile()
            message(FATAL_ERROR "Could not find keymap.c in ${KEYBOARD_FOLDER_ABS}")
        else()
            if(EXISTS "${KEYBOARD_FOLDER_ABS}/keymap.c")
                set(${KEYMAP_C_STR} "${KEYBOARD_FOLDER_ABS}/keymap.c" PARENT_SCOPE)
            elseif(EXISTS "${KEYBOARD_FOLDER_ABS}/keymaps/${KEYMAP_FOLDER}/keymap.c")
                set(${KEYMAP_C_STR} "${KEYBOARD_FOLDER_ABS}/keymaps/${KEYMAP_FOLDER}/keymap.c" PARENT_SCOPE)
            else()
                message(FATAL_ERROR "Could not find keymap.c in ${KEYBOARD_FOLDER_ABS}")
            endif()
        endif()
    endif()
endfunction()