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Update git submodules during build

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Making submodule init/update transparent to the end user.

This change prevents CMake builds from failing if submodules have not been
installed, e.g., Google Test.
This commit is contained in:
Aaron Hinojosa 2020-07-27 17:25:54 -05:00
parent 28d376e7f0
commit 645ecc43e4
1 changed files with 29 additions and 1 deletions
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30
CMakeLists.txt
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@ -56,8 +56,10 @@ else()
set (SYNERGY_ADD_HEADERS TRUE)
endif()
set (libs)
include_directories (BEFORE SYSTEM ./ext/googletest/googletest/include)
include_directories (BEFORE SYSTEM ${PROJECT_SOURCE_DIR}/ext/googletest/googletest/include)
if (UNIX)
if (NOT APPLE)
@ -312,6 +314,32 @@ else()
message (FATAL_ERROR "Couldn't find OpenSSL")
endif()
#
# Check submodules
#
find_package(Git QUIET)
if(GIT_FOUND AND EXISTS "${PROJECT_SOURCE_DIR}/.git")
# Update submodules as needed
option(GIT_SUBMODULE "Check submodules during build" ON)
if(GIT_SUBMODULE)
message(STATUS "Submodule update")
execute_process(COMMAND ${GIT_EXECUTABLE} submodule update --init --recursive
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
RESULT_VARIABLE GIT_SUBMOD_RESULT)
if(NOT GIT_SUBMOD_RESULT EQUAL "0")
message(FATAL_ERROR "git submodule update --init failed with ${GIT_SUBMOD_RESULT}, please checkout submodules")
endif()
endif()
endif()
#
# Google Test
#
if(NOT EXISTS "${PROJECT_SOURCE_DIR}/ext/googletest/CMakeLists.txt")
message(FATAL_ERROR "The submodules were not downloaded! GIT_SUBMODULE was turned off or failed. Please update submodules and try again.")
endif()
#
# Configure_file... but for directories, recursively.
#