esp-idf/components/esptool_py/run_esptool.cmake

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1.6 KiB
CMake
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# A CMake script to run esptool commands from within ninja or make
# or another cmake-based build runner
#
# (Needed to expand environment variables, for backwards compatibility.)
#
# It is recommended to NOT USE this CMake script if you have the option of
# running esptool.py directly. This script exists only for use inside CMake builds.
#
cmake_minimum_required(VERSION 3.5)
if(NOT IDF_PATH OR NOT ESPTOOLPY OR NOT ESPTOOL_ARGS OR NOT ESPTOOL_WORKING_DIR)
message(FATAL_ERROR "IDF_PATH, ESPTOOLPY, ESPTOOL_ARGS, and ESPTOOL_WORKING_DIR must "
"be specified on the CMake command line. For direct esptool execution, it is "
"strongly recommended to run esptool.py directly.")
endif()
# Note: we can't expand these environment variables in the main IDF CMake build,
# because we want to expand them at flashing time not at CMake runtime (so they can change
# without needing a CMake re-run)
set(ESPPORT $ENV{ESPPORT})
if(NOT ESPPORT)
message("Note: esptool.py will search for a serial port. To specify a port, set the ESPPORT environment variable.")
else()
set(port_arg "-p ${ESPPORT}")
endif()
set(ESPBAUD $ENV{ESPBAUD})
if(NOT ESPBAUD)
message("Note: Using default baud rate 460800. To modify, set ESPBAUD environment variable.")
set(ESPBAUD 460800)
endif()
include("${IDF_PATH}/tools/cmake/utilities.cmake")
set(cmd "${ESPTOOLPY} ${port_arg} -b ${ESPBAUD} ${ESPTOOL_ARGS}")
spaces2list(cmd)
execute_process(COMMAND ${cmd}
WORKING_DIRECTORY "${ESPTOOL_WORKING_DIR}"
RESULT_VARIABLE result
)
if(${result})
# No way to have CMake silently fail, unfortunately
message(FATAL_ERROR "esptool.py failed")
endif()