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## # vcpkg_execute_required_process
##
## Execute a process with logging and fail the build if the command fails.
##
## ## Usage
## ```cmake
## vcpkg_execute_required_process(
## COMMAND <${PERL}> [<arguments>...]
## WORKING_DIRECTORY <${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg>
## LOGNAME <build-${TARGET_TRIPLET}-dbg>
## )
## ```
## ## Parameters
## ### ALLOW_IN_DOWNLOAD_MODE
## Allows the command to execute in Download Mode.
## [See execute_process() override](../../scripts/cmake/execute_process.cmake).
##
## ### COMMAND
## The command to be executed, along with its arguments.
##
## ### WORKING_DIRECTORY
## The directory to execute the command in.
##
## ### LOGNAME
## The prefix to use for the log files.
##
## This should be a unique name for different triplets so that the logs don't conflict when building multiple at once.
##
## ## Examples
##
## * [ffmpeg](https://github.com/Microsoft/vcpkg/blob/master/ports/ffmpeg/portfile.cmake)
## * [openssl](https://github.com/Microsoft/vcpkg/blob/master/ports/openssl/portfile.cmake)
## * [boost](https://github.com/Microsoft/vcpkg/blob/master/ports/boost/portfile.cmake)
## * [qt5](https://github.com/Microsoft/vcpkg/blob/master/ports/qt5/portfile.cmake)
include(vcpkg_prettify_command)
function(vcpkg_execute_required_process)
cmake_parse_arguments(vcpkg_execute_required_process "ALLOW_IN_DOWNLOAD_MODE" "WORKING_DIRECTORY;LOGNAME" "COMMAND" ${ARGN})
set(LOG_OUT "${CURRENT_BUILDTREES_DIR}/${vcpkg_execute_required_process_LOGNAME}-out.log")
set(LOG_ERR "${CURRENT_BUILDTREES_DIR}/${vcpkg_execute_required_process_LOGNAME}-err.log")
set(execute_process_function execute_process)
if (DEFINED VCPKG_DOWNLOAD_MODE AND NOT vcpkg_execute_required_process_ALLOW_IN_DOWNLOAD_MODE)
message(FATAL_ERROR
[[
This command cannot be executed in Download Mode.
Halting portfile execution.
]])
endif()
_execute_process(
COMMAND ${vcpkg_execute_required_process_COMMAND}
OUTPUT_FILE ${LOG_OUT}
ERROR_FILE ${LOG_ERR}
RESULT_VARIABLE error_code
WORKING_DIRECTORY ${vcpkg_execute_required_process_WORKING_DIRECTORY})
if(error_code)
set(LOGS)
file(READ "${LOG_OUT}" out_contents)
file(READ "${LOG_ERR}" err_contents)
if(out_contents)
list(APPEND LOGS "${LOG_OUT}")
endif()
if(err_contents)
list(APPEND LOGS "${LOG_ERR}")
endif()
set(STRINGIFIED_LOGS)
foreach(LOG ${LOGS})
file(TO_NATIVE_PATH "${LOG}" NATIVE_LOG)
list(APPEND STRINGIFIED_LOGS " ${NATIVE_LOG}\n")
endforeach()
vcpkg_prettify_command(vcpkg_execute_required_process_COMMAND vcpkg_execute_required_process_COMMAND_PRETTY)
message(FATAL_ERROR
" Command failed: ${vcpkg_execute_required_process_COMMAND_PRETTY}\n"
" Working Directory: ${vcpkg_execute_required_process_WORKING_DIRECTORY}\n"
" Error code: ${error_code}\n"
" See logs for more information:\n"
${STRINGIFIED_LOGS}
)
endif()
endfunction()
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