From d399a75bf66f6584e99cc43e06148997b9704b3e Mon Sep 17 00:00:00 2001
From: Raphael Coeffic <raphaelcoeffic@users.noreply.github.com>
Date: Mon, 2 Sep 2019 14:36:13 +0200
Subject: [PATCH] download googletest automatically (#6697)

and a small fix for finding QT5 installed via brew on OSX
---
 CMakeLists.txt                     | 35 ++++++++++++++++++++++++++++++
 companion/src/tests/CMakeLists.txt |  3 ---
 radio/src/tests/CMakeLists.txt     |  3 ---
 3 files changed, 35 insertions(+), 6 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 69c809f6e..802138652 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -79,6 +79,14 @@ endif()
 option(DISABLE_COMPANION "Disable building companion and simulators" OFF)
 
 if(NOT DISABLE_COMPANION)  # FIXME cosmetics/style
+
+if(APPLE AND EXISTS /usr/local/opt/qt5)
+	# Homebrew installs Qt5 (up to at least 5.9.1) in
+	# /usr/local/qt5, ensure it can be found by CMake since
+	# it is not in the default /usr/local prefix.
+	list(APPEND CMAKE_PREFIX_PATH "/usr/local/opt/qt5")
+endif()
+
 find_package(Qt5Core)
 find_package(Qt5Widgets)
 find_package(Qt5Xml)
@@ -189,6 +197,33 @@ if(WIN32)
   endif()
 endif()
 
+set(GTEST_ROOT /usr CACHE STRING "Base path to Google Test headers and source.")
+
+find_path(GTEST_INCDIR gtest/gtest.h HINTS "${GTEST_ROOT}/include" DOC "Path to Google Test header files folder ('gtest/gtest.h').")
+find_path(GTEST_SRCDIR src/gtest-all.cc HINTS "${GTEST_ROOT}" "${GTEST_ROOT}/src/gtest" DOC "Path of Google Test 'src' folder.")
+
+if(NOT GTEST_INCDIR OR NOT GTEST_SRCDIR)
+  message(STATUS "Googletest will be downloaded")
+  
+  set(GTEST_VERSION 1.8.1)
+
+  set(GTEST_SRCDIR "${RADIO_SRC_DIRECTORY}/tests/googletest-release-${GTEST_VERSION}/googletest")
+  set(GTEST_INCDIR "${GTEST_SRCDIR}/include")
+  
+  set(GTEST_URL     "https://github.com/google/googletest/archive/release-${GTEST_VERSION}.tar.gz")
+  set(GTEST_ARCHIVE "${RADIO_SRC_DIRECTORY}/tests/gtest-${GTEST_VERSION}.tar.gz")
+
+  if (NOT EXISTS "${GTEST_ARCHIVE}")
+    file(DOWNLOAD "${GTEST_URL}" ${GTEST_ARCHIVE} SHOW_PROGRESS)
+  endif()
+
+  if (NOT EXISTS "${GTEST_SRCDIR}")
+    execute_process(
+      COMMAND ${CMAKE_COMMAND} -E tar -xf ${GTEST_ARCHIVE}
+      WORKING_DIRECTORY ${RADIO_SRC_DIRECTORY}/tests)
+  endif()
+endif()
+
 add_subdirectory(${RADIO_SRC_DIRECTORY})
 
 if(Qt5Core_FOUND AND NOT DISABLE_COMPANION)
diff --git a/companion/src/tests/CMakeLists.txt b/companion/src/tests/CMakeLists.txt
index a7666afeb..e66b41fd2 100644
--- a/companion/src/tests/CMakeLists.txt
+++ b/companion/src/tests/CMakeLists.txt
@@ -1,7 +1,4 @@
-set(GTEST_ROOT /usr CACHE STRING "Base path to Google Test headers and source.")
 
-find_path(GTEST_INCDIR gtest/gtest.h HINTS "${GTEST_ROOT}/include" DOC "Path to Google Test header files folder ('gtest/gtest.h').")
-find_path(GTEST_SRCDIR src/gtest-all.cc HINTS "${GTEST_ROOT}" "${GTEST_ROOT}/src/gtest" DOC "Path of Google Test 'src' folder.")
 
 if(GTEST_INCDIR AND GTEST_SRCDIR AND Qt5Widgets_FOUND)
   add_library(gtests-companion-lib STATIC EXCLUDE_FROM_ALL ${GTEST_SRCDIR}/src/gtest-all.cc )
diff --git a/radio/src/tests/CMakeLists.txt b/radio/src/tests/CMakeLists.txt
index 73e1b34b0..e381cb808 100644
--- a/radio/src/tests/CMakeLists.txt
+++ b/radio/src/tests/CMakeLists.txt
@@ -1,7 +1,4 @@
-set(GTEST_ROOT /usr CACHE STRING "Base path to Google Test headers and source.")
 
-find_path(GTEST_INCDIR gtest/gtest.h HINTS "${GTEST_ROOT}/include" DOC "Path to Google Test header files folder ('gtest/gtest.h').")
-find_path(GTEST_SRCDIR src/gtest-all.cc HINTS "${GTEST_ROOT}" "${GTEST_ROOT}/src/gtest" DOC "Path of Google Test 'src' folder.")
 
 if(GTEST_INCDIR AND GTEST_SRCDIR AND Qt5Widgets_FOUND)
   add_library(gtests-radio-lib STATIC EXCLUDE_FROM_ALL ${GTEST_SRCDIR}/src/gtest-all.cc )