zmk_mf68/cmake/keymap.cmake

92 lines
2.5 KiB
CMake

get_property(cached_keymap_value CACHE KEYMAP PROPERTY VALUE)
# There are actually 4 sources, the three user input sources, and the
# previously used value (CACHED_KEYMAP). The previously used value has
# precedence, and if we detect that the user is trying to change the
# value we give him a warning about needing to clean the build
# directory to be able to change keymaps.
set(keymap_cli_argument ${cached_keymap_value}) # Either new or old
if(keymap_cli_argument STREQUAL CACHED_KEYMAP)
# We already have a CACHED_KEYMAP so there is no new input on the CLI
unset(keymap_cli_argument)
endif()
set(keymap_app_cmake_lists ${KEYMAP})
if(cached_keymap_value STREQUAL KEYMAP)
# The app build scripts did not set a default, The KEYMAP we are
# reading is the cached value from the CLI
unset(keymap_app_cmake_lists)
endif()
if(CACHED_KEYMAP)
# Warn the user if it looks like he is trying to change the keymap
# without cleaning first
if(keymap_cli_argument)
if(NOT (CACHED_KEYMAP STREQUAL keymap_cli_argument))
message(WARNING "The build directory must be cleaned pristinely when changing keymaps")
# TODO: Support changing keymaps without requiring a clean build
endif()
endif()
set(KEYMAP ${CACHED_KEYMAP})
elseif(keymap_cli_argument)
set(KEYMAP ${keymap_cli_argument})
elseif(DEFINED ENV{KEYMAP})
set(KEYMAP $ENV{KEYMAP})
elseif(keymap_app_cmake_lists)
set(KEYMAP ${keymap_app_cmake_lists})
else()
set(KEYMAP default)
message(STATUS "KEYMAP defaulted to 'default'")
endif()
message(STATUS "Keymap: ${KEYMAP}")
# Store the selected keymap in the cache
set(CACHED_KEYMAP ${KEYMAP} CACHE STRING "Selected keymap")
set(ZMK_APP_DIR ${CMAKE_CURRENT_SOURCE_DIR})
list(APPEND KEYMAP_DIRS ${ZMK_APP_DIR}/keymaps)
foreach(root ${BOARD_ROOT})
find_path(BOARD_DIR
NAMES ${BOARD}_defconfig
PATHS ${root}/boards/*/*
NO_DEFAULT_PATH
)
if(BOARD_DIR)
list(APPEND KEYMAP_DIRS ${BOARD_DIR}/keymaps)
endif()
if(DEFINED SHIELD)
find_path(shields_refs_list
NAMES ${SHIELD}.overlay
PATHS ${root}/boards/shields/*
NO_DEFAULT_PATH
)
foreach(shield_path ${shields_refs_list})
list(APPEND KEYMAP_DIRS ${shield_path}/keymaps)
endforeach()
endif()
endforeach()
foreach(keymap_root ${KEYMAP_DIRS})
find_path(KEYMAP_DIR
NAMES ${KEYMAP}
PATHS ${keymap_root}/*/*
NO_DEFAULT_PATH
)
if (KEYMAP_DIR)
message(STATUS "Using keymap directory: ${KEYMAP_DIR}/${KEYMAP}/")
set(DTC_OVERLAY_FILE ${KEYMAP_DIR}/${KEYMAP}/keymap.overlay)
break()
endif()
endforeach()