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cmake_minimum_required(VERSION 2.8.12)
project(googletest-download NONE)
# Enable ExternalProject CMake module
include(ExternalProject)
option(ALLOW_DOWNLOADING_GOOGLETEST "If googletest src tree is not found in location specified by GOOGLETEST_PATH, do fetch the archive from internet" OFF)
set(GOOGLETEST_PATH "/usr/src/googletest" CACHE PATH
"Path to the googletest root tree. Should contain googletest and googlemock subdirs. And CMakeLists.txt in root, and in both of these subdirs")
# Download and install GoogleTest
message(STATUS "Looking for Google Test sources")
message(STATUS "Looking for Google Test sources in ${GOOGLETEST_PATH}")
if(EXISTS "${GOOGLETEST_PATH}" AND IS_DIRECTORY "${GOOGLETEST_PATH}" AND EXISTS "${GOOGLETEST_PATH}/CMakeLists.txt" AND
EXISTS "${GOOGLETEST_PATH}/googletest" AND IS_DIRECTORY "${GOOGLETEST_PATH}/googletest" AND EXISTS "${GOOGLETEST_PATH}/googletest/CMakeLists.txt" AND
EXISTS "${GOOGLETEST_PATH}/googlemock" AND IS_DIRECTORY "${GOOGLETEST_PATH}/googlemock" AND EXISTS "${GOOGLETEST_PATH}/googlemock/CMakeLists.txt")
message(STATUS "Found Google Test in ${GOOGLETEST_PATH}")
ExternalProject_Add(
googletest
PREFIX "${CMAKE_BINARY_DIR}"
DOWNLOAD_DIR "${CMAKE_BINARY_DIR}/download"
SOURCE_DIR "${GOOGLETEST_PATH}" # use existing src dir.
BINARY_DIR "${CMAKE_BINARY_DIR}/build"
CONFIGURE_COMMAND ""
BUILD_COMMAND ""
INSTALL_COMMAND ""
TEST_COMMAND ""
)
else()
if(NOT ALLOW_DOWNLOADING_GOOGLETEST)
message(SEND_ERROR "Did not find Google Test sources! Either pass correct path in GOOGLETEST_PATH, or enable BENCHMARK_DOWNLOAD_DEPENDENCIES, or disable BENCHMARK_ENABLE_GTEST_TESTS / BENCHMARK_ENABLE_TESTING.")
else()
message(WARNING "Did not find Google Test sources! Fetching from web...")
ExternalProject_Add(
googletest
GIT_REPOSITORY https://github.com/google/googletest.git
GIT_TAG master
PREFIX "${CMAKE_BINARY_DIR}"
STAMP_DIR "${CMAKE_BINARY_DIR}/stamp"
DOWNLOAD_DIR "${CMAKE_BINARY_DIR}/download"
SOURCE_DIR "${CMAKE_BINARY_DIR}/src"
BINARY_DIR "${CMAKE_BINARY_DIR}/build"
CONFIGURE_COMMAND ""
BUILD_COMMAND ""
INSTALL_COMMAND ""
TEST_COMMAND ""
)
endif()
endif()
ExternalProject_Get_Property(googletest SOURCE_DIR BINARY_DIR)
file(WRITE googletest-paths.cmake
"set(GOOGLETEST_SOURCE_DIR \"${SOURCE_DIR}\")
set(GOOGLETEST_BINARY_DIR \"${BINARY_DIR}\")
")
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