From 46d27e37d73df5a772efc19210796c7a91dfe751 Mon Sep 17 00:00:00 2001
From: XuanYang-cn <xuan.yang@zilliz.com>
Date: Thu, 8 Apr 2021 10:01:18 +0800
Subject: [PATCH] Skip install gtest when build with test

Signed-off-by: XuanYang-cn <xuan.yang@zilliz.com>
---
 .gitignore                                           |  2 ++
 .../core/thirdparty/google_benchmark/CMakeLists.txt  |  1 -
 internal/core/thirdparty/gtest/CMakeLists.txt        | 12 +++++++++++-
 internal/core/unittest/CMakeLists.txt                |  1 +
 4 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/.gitignore b/.gitignore
index 1178e453bd..86b253e7eb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -67,6 +67,8 @@ cwrapper_build
 **/.lint
 typescript
 **/.pytest_cache/
+.root
+gtags.conf
 
 # Delve generated file
 **/__debug_bin
diff --git a/internal/core/thirdparty/google_benchmark/CMakeLists.txt b/internal/core/thirdparty/google_benchmark/CMakeLists.txt
index e5406dce8b..b67e438a6f 100644
--- a/internal/core/thirdparty/google_benchmark/CMakeLists.txt
+++ b/internal/core/thirdparty/google_benchmark/CMakeLists.txt
@@ -1,4 +1,3 @@
-include(FetchContent)
 FetchContent_Declare(google_benchmark
     URL             https://github.com/google/benchmark/archive/v1.5.2.tar.gz
     URL_MD5         084b34aceaeac11a6607d35220ca2efa
diff --git a/internal/core/thirdparty/gtest/CMakeLists.txt b/internal/core/thirdparty/gtest/CMakeLists.txt
index 895cae7166..f676e0c90d 100644
--- a/internal/core/thirdparty/gtest/CMakeLists.txt
+++ b/internal/core/thirdparty/gtest/CMakeLists.txt
@@ -29,7 +29,17 @@ FetchContent_Declare(
         BINARY_DIR      ${CMAKE_CURRENT_BINARY_DIR}/googletest-build
         DOWNLOAD_DIR    ${THIRDPARTY_DOWNLOAD_PATH} )
 
-FetchContent_MakeAvailable(googletest)
+FetchContent_GetProperties( googletest )
+if ( NOT googletest_POPULATED )
+
+    FetchContent_Populate( googletest )
+
+    # Adding the following targets:
+    # gtest, gtest_main, gmock, gmock_main
+    add_subdirectory( ${googletest_SOURCE_DIR}
+                      ${googletest_BINARY_DIR}
+                      EXCLUDE_FROM_ALL )
+endif()
 # include(GoogleTest)
 
 # ****************************************************************
diff --git a/internal/core/unittest/CMakeLists.txt b/internal/core/unittest/CMakeLists.txt
index 75998a0c85..5b8a851645 100644
--- a/internal/core/unittest/CMakeLists.txt
+++ b/internal/core/unittest/CMakeLists.txt
@@ -55,3 +55,4 @@ target_link_libraries(all_tests
         )
 
 install (TARGETS all_tests DESTINATION unittest)
+install (TARGETS index_builder_test DESTINATION unittest)