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# CMake module to find a package, or fetch it in case it is not found locally
cmake_minimum_required(VERSION 3.25)
function(find_or_fetch_package _package)
set(flags VERBOSE)
set(options VERSION GIT_REPOSITORY GIT_TAG)
set(variables VARIABLES)
cmake_parse_arguments(FOF_OPTIONS "${flags}" "${options}" "${variables}" ${ARGN})
if(NOT _package)
message(FATAL_ERROR "TARGET option is missing")
endif()
if(TARGET "${_package}" OR ${_package}_FOUND)
return(PROPAGATE ${FOF_OPTIONS_VARIABLES})
endif()
find_package("${_package}" ${FOF_OPTIONS_VERSION} QUIET)
if(${FOF_OPTIONS_VARIABLES})
message(NOTICE "fof cifpp data dir: ${CIFPP_SHARE_DIR}")
endif()
if(${_package}_FOUND)
return(PROPAGATE ${FOF_OPTIONS_VARIABLES})
endif()
include(FetchContent)
if(NOT FOF_OPTIONS_GIT_REPOSITORY)
message("Package ${_package} not found and GIT_REPOSITORY option is missing")
endif()
if(NOT FOF_OPTIONS_GIT_TAG)
message("Package ${_package} not found and GIT_TAG option is missing")
endif()
FetchContent_Declare(
"${_package}"
GIT_REPOSITORY ${FOF_OPTIONS_GIT_REPOSITORY}
GIT_TAG ${FOF_OPTIONS_GIT_TAG})
FetchContent_MakeAvailable("${_package}")
return(PROPAGATE ${FOF_OPTIONS_VARIABLES})
endfunction()
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