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cmake_minimum_required(VERSION 3.1 FATAL_ERROR)
# If necessary bring in the quickcpplib cmake tooling
set(quickcpplib_done OFF)
foreach(item ${CMAKE_MODULE_PATH})
if(item MATCHES "quickcpplib/cmakelib")
set(quickcpplib_done ON)
endif()
endforeach()
if(NOT quickcpplib_done)
# CMAKE_SOURCE_DIR is the very topmost parent cmake project
# CMAKE_CURRENT_SOURCE_DIR is the current cmake subproject
# If there is a magic .quickcpplib_use_siblings directory above the topmost project, use sibling edition
if(EXISTS "${CMAKE_SOURCE_DIR}/../.quickcpplib_use_siblings")
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/../quickcpplib/cmakelib")
set(CTEST_QUICKCPPLIB_SCRIPTS "${CMAKE_SOURCE_DIR}/../quickcpplib/scripts")
elseif(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/../.quickcpplib_use_siblings")
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/../quickcpplib/cmakelib")
set(CTEST_QUICKCPPLIB_SCRIPTS "${CMAKE_CURRENT_SOURCE_DIR}/../quickcpplib/scripts")
elseif(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/.gitmodules")
# Read in .gitmodules and look for myself
file(READ "${CMAKE_CURRENT_SOURCE_DIR}/.gitmodules" GITMODULESCONTENTS)
if(GITMODULESCONTENTS MATCHES ".*\\n?\\[submodule \"([^\"]+\\/quickcpplib)\"\\]")
set(quickcpplibpath "${CMAKE_MATCH_1}")
if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/${quickcpplibpath}/cmake")
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/${quickcpplibpath}/cmakelib")
set(CTEST_QUICKCPPLIB_SCRIPTS "${CMAKE_CURRENT_SOURCE_DIR}/${quickcpplibpath}/scripts")
else()
message(WARNING "WARNING: ${quickcpplibpath}/cmake does not exist, attempting git submodule update --init --recursive ...")
include(FindGit)
execute_process(COMMAND ${GIT_EXECUTABLE} submodule update --init --recursive
WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
)
if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/${quickcpplibpath}/cmake")
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/${quickcpplibpath}/cmakelib")
set(CTEST_QUICKCPPLIB_SCRIPTS "${CMAKE_CURRENT_SOURCE_DIR}/${quickcpplibpath}/scripts")
else()
message(FATAL_ERROR "FATAL: ${quickcpplibpath}/cmake does not exist and git submodule update --init --recursive did not make it available, bailing out")
endif()
endif()
else()
message(FATAL_ERROR "FATAL: A copy of quickcpplib cannot be found, and cannot find a quickcpplib submodule in this git repository")
endif()
else()
message(FATAL_ERROR "FATAL: A copy of quickcpplib cannot be found, and there are no git submodules to search")
endif()
endif()
message(STATUS "CMAKE_MODULE_PATH = ${CMAKE_MODULE_PATH}")
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