bat-sense/main/CMakeLists.txt

# 1. Load all source files from lib/ and src/
file(GLOB_RECURSE LIB_SRCS "lib/*.cpp" "lib/*.c")
file(GLOB_RECURSE SRC_SRCS "src/*.cpp" "src/*.c")

# 2. Search for headers from  lib/, include/ and src/
file(GLOB_RECURSE ALL_HEADERS 
    "lib/*.h" "lib/*.hpp"
    "include/*.h" "include/*.hpp"
    "src/*.h" "src/*.hpp"
)

# 3. Add include directories
set(ALL_INC_DIRS "")

# Add root directories
list(APPEND ALL_INC_DIRS "${CMAKE_CURRENT_SOURCE_DIR}/include")
list(APPEND ALL_INC_DIRS "${CMAKE_CURRENT_SOURCE_DIR}/src")
list(APPEND ALL_INC_DIRS "${CMAKE_CURRENT_SOURCE_DIR}/lib")

foreach(header ${ALL_HEADERS})
    # Search all found headers and add their directories    
    get_filename_component(header_dir ${header} DIRECTORY)
    list(APPEND ALL_INC_DIRS ${header_dir})
    
    # PlatformIO trick: add parent diewcoty for relations like "Folder/File.h"
    get_filename_component(parent_dir ${header_dir} DIRECTORY)
    list(APPEND ALL_INC_DIRS ${parent_dir})
endforeach()

list(REMOVE_DUPLICATES ALL_INC_DIRS)


# 4. Register component for ESP-IDF
idf_component_register(
    PRIV_REQUIRES
        spi_flash
    SRCS 
        ${SRC_SRCS}
        ${LIB_SRCS}
    INCLUDE_DIRS 
        ${ALL_INC_DIRS}
    REQUIRES
        arduino
)