From 898fb3a7043bd5af6a42c18b21109f12138c977c Mon Sep 17 00:00:00 2001
From: Benjamin Barenblat <bbaren@google.com>
Date: Wed, 26 Feb 2020 15:46:53 -0500
Subject: Support testing with a local googletest checkout

Add a new variable, `ABSL_LOCAL_GOOGLETEST_DIR`, that points to a local
checkout of googletest. Building with `-DABSL_RUN_TESTS=ON
-DABSL_USE_GOOGLETEST_HEAD=OFF` will then use that directory rather than
cloning the googletest repo from GitHub.
---
 CMakeLists.txt | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

(limited to 'CMakeLists.txt')

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 26cd2d0..74b5cd9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -84,6 +84,10 @@ find_package(Threads REQUIRED)
 option(ABSL_USE_GOOGLETEST_HEAD
   "If ON, abseil will download HEAD from googletest at config time." OFF)
 
+set(ABSL_LOCAL_GOOGLETEST_DIR "/usr/src/googletest" CACHE PATH
+  "If ABSL_USE_GOOGLETEST_HEAD is OFF, specifies the directory of a local googletest checkout."
+  )
+
 option(ABSL_RUN_TESTS "If ON, Abseil tests will be run." OFF)
 
 if(${ABSL_RUN_TESTS})
@@ -96,11 +100,13 @@ endif()
 ## check targets
 if(BUILD_TESTING)
 
+  set(absl_gtest_build_dir ${CMAKE_BINARY_DIR}/googletest-build)
   if(${ABSL_USE_GOOGLETEST_HEAD})
     set(absl_gtest_src_dir ${CMAKE_BINARY_DIR}/googletest-src)
-    set(absl_gtest_build_dir ${CMAKE_BINARY_DIR}/googletest-build)
-    include(CMake/Googletest/DownloadGTest.cmake)
+  else()
+    set(absl_gtest_src_dir ${ABSL_LOCAL_GOOGLETEST_DIR})
   endif()
+  include(CMake/Googletest/DownloadGTest.cmake)
 
   check_target(gtest)
   check_target(gtest_main)
-- 
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