etc/cmake/functions.cmake

#
#  Copyright (c) 2019, The OpenThread Authors.
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# Get a list of the available platforms and output as a list to the 'arg_platforms' argument
function(ot_get_platforms arg_platforms)
    set(result "none")
    set(platforms_dir "${PROJECT_SOURCE_DIR}/examples/platforms")
    file(GLOB platforms RELATIVE "${platforms_dir}" "${platforms_dir}/*")
    foreach(platform IN LISTS platforms)
        if(IS_DIRECTORY "${platforms_dir}/${platform}")
            list(APPEND result "${platform}")
        endif()
    endforeach()

    set(${arg_platforms} "${result}" PARENT_SCOPE)
endfunction()