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# Commands to install the R package as a CMake install target
function(check_call)
set(cmd COMMAND)
cmake_parse_arguments(
PARSE_ARGV 0
CALL_ARG "" "" "${cmd}"
)
string(REPLACE ";" " " commands "${CALL_ARG_COMMAND}")
message("Command: ${commands}")
execute_process(COMMAND ${CALL_ARG_COMMAND}
OUTPUT_VARIABLE _out
ERROR_VARIABLE _err
RESULT_VARIABLE _res)
if(NOT "${_res}" EQUAL "0")
message(FATAL_ERROR "out: ${_out}, err: ${_err}, res: ${_res}")
endif()
endfunction()
# Important paths
set(build_dir "@build_dir@")
set(LIBR_EXECUTABLE "@LIBR_EXECUTABLE@")
# Back up cmake_install.cmake
file(WRITE "${build_dir}/R-package/src/Makevars" "all:")
file(WRITE "${build_dir}/R-package/src/Makevars.win" "all:")
# Install dependencies
set(XGB_DEPS_SCRIPT
"deps = setdiff(c('data.table', 'jsonlite', 'Matrix'), rownames(installed.packages())); if(length(deps)>0) install.packages(deps, repo = 'https://cloud.r-project.org/')")
check_call(COMMAND "${LIBR_EXECUTABLE}" -q -e "${XGB_DEPS_SCRIPT}")
# Install the XGBoost R package
check_call(COMMAND "${LIBR_EXECUTABLE}" CMD INSTALL --no-multiarch --build "${build_dir}/R-package")
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