Build and download 3rd-party to build dir (#63)

* Build and download 3rd-party to build dir

* Configure gtests in build dir

Author: kohnech

.gitignore

@@ -83,9 +83,5 @@ msvc/2015/TestTsLib/TestTsLib/settings.json
 # CPack
 CPackConfig.cmake
 
-# Cached 3rd-party
-3rd-party/googletest*
-3rd-party/benchmark*
-
 # Windows CPack
-_CPack_Packages
+_CPack_Packages

3rd-party/CMakeLists.txt

@@ -39,7 +39,7 @@ include(ExternalProject)
 ExternalProject_Add(
     plog
     URL ${CMAKE_CURRENT_SOURCE_DIR}/plog-${PLOG_VERSION}.tar.gz
-    INSTALL_DIR ${CMAKE_CURRENT_SOURCE_DIR}/plog-${PLOG_VERSION}
+    INSTALL_DIR ${CMAKE_CURRENT_BINARY_DIR}/plog-${PLOG_VERSION}
     CMAKE_ARGS  -D CMAKE_BUILD_TYPE=Release
                 -D CMAKE_INSTALL_PREFIX=<INSTALL_DIR>
                 -D PLOG_BUILD_SAMPLES=OFF
@@ -50,7 +50,7 @@ ExternalProject_Add(
 ExternalProject_Add(
     json
     URL ${CMAKE_CURRENT_SOURCE_DIR}/json-${NLOHMANN_VERSION}.tar.gz
-    INSTALL_DIR ${CMAKE_CURRENT_SOURCE_DIR}/json-${NLOHMANN_VERSION}
+    INSTALL_DIR ${CMAKE_CURRENT_BINARY_DIR}/json-${NLOHMANN_VERSION}
     CMAKE_ARGS  -D CMAKE_BUILD_TYPE=Release
                 -D BUILD_TESTING=OFF
                 -D CMAKE_INSTALL_PREFIX=<INSTALL_DIR>
@@ -70,17 +70,17 @@ if(NOT USE_DOCKER AND NOT ENABLE_WEBASSEMBLY AND ENABLE_TESTS)
     endif(APPLE)
 
     # Download and unpack googletest at configure time
-    configure_file(${CMAKE_CURRENT_SOURCE_DIR}/CMakeLists_googletest.txt.in ${CMAKE_CURRENT_SOURCE_DIR}/googletest-download/CMakeLists.txt)
+    configure_file(${CMAKE_CURRENT_SOURCE_DIR}/CMakeLists_googletest.txt.in ${CMAKE_CURRENT_BINARY_DIR}/googletest-download/CMakeLists.txt)
     execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
         RESULT_VARIABLE result
-        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/googletest-download 
+        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/googletest-download 
     )
     if(result)
         message(FATAL_ERROR "CMake step for googletest failed: ${result}")
     endif()
     execute_process(COMMAND ${CMAKE_COMMAND} --build .
         RESULT_VARIABLE result
-        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/googletest-download )
+        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/googletest-download )
     if(result)
         message(FATAL_ERROR "Build step for googletest failed: ${result}")
     endif()
@@ -91,8 +91,8 @@ if(NOT USE_DOCKER AND NOT ENABLE_WEBASSEMBLY AND ENABLE_TESTS)
 
     # Add googletest directly to our build. This defines
     # the gtest and gtest_main targets.
-    add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/googletest-src
-        ${CMAKE_CURRENT_SOURCE_DIR}/googletest-build
+    add_subdirectory(${CMAKE_CURRENT_BINARY_DIR}/googletest-src
+        ${CMAKE_CURRENT_BINARY_DIR}/googletest-build
         EXCLUDE_FROM_ALL)
 
     # The gtest/gtest_main targets carry header search path
@@ -118,16 +118,16 @@ if(NOT USE_DOCKER AND NOT ENABLE_WEBASSEMBLY AND ENABLE_TESTS)
     set(BENCHMARK_ENABLE_TESTING OFF)
 
     # Download and unpack benchmark at configure time
-    configure_file(${CMAKE_CURRENT_SOURCE_DIR}/CMakeLists_benchmark.txt.in ${CMAKE_CURRENT_SOURCE_DIR}/benchmark-download/CMakeLists.txt)
+    configure_file(${CMAKE_CURRENT_SOURCE_DIR}/CMakeLists_benchmark.txt.in ${CMAKE_CURRENT_BINARY_DIR}/benchmark-download/CMakeLists.txt)
     execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
         RESULT_VARIABLE result
-        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/benchmark-download )
+        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/benchmark-download )
     if(result)
         message(FATAL_ERROR "CMake step for benchmark failed: ${result}")
     endif()
     execute_process(COMMAND ${CMAKE_COMMAND} --build .
         RESULT_VARIABLE result
-        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/benchmark-download )
+        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/benchmark-download )
     if(result)
         message(FATAL_ERROR "Build step for benchmark failed: ${result}")
     endif()
@@ -139,8 +139,8 @@ if(NOT USE_DOCKER AND NOT ENABLE_WEBASSEMBLY AND ENABLE_TESTS)
 
     # Add benchmark directly to our build. This defines
     # the gtest and gtest_main targets.
-    add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/benchmark-src
-                     ${CMAKE_CURRENT_SOURCE_DIR}/benchmark-build
+    add_subdirectory(${CMAKE_CURRENT_BINARY_DIR}/benchmark-src
+                     ${CMAKE_CURRENT_BINARY_DIR}/benchmark-build
                      EXCLUDE_FROM_ALL)
 
     # The gtest/gtest_main targets carry header search path

3rd-party/CMakeLists_benchmark.txt.in

@@ -6,8 +6,8 @@ include(ExternalProject)
 ExternalProject_Add(benchmark
     GIT_REPOSITORY    https://github.com/google/benchmark.git
     GIT_TAG           main
-    SOURCE_DIR        "${CMAKE_CURRENT_SOURCE_DIR}/benchmark-src"
-    BINARY_DIR        "${CMAKE_CURRENT_SOURCE_DIR}/benchmark-build"
+    SOURCE_DIR        "${CMAKE_CURRENT_BINARY_DIR}/benchmark-src"
+    BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/benchmark-build"
     GIT_SHALLOW       1
     CONFIGURE_COMMAND ""
     BUILD_COMMAND     ""

3rd-party/CMakeLists_googletest.txt.in

@@ -7,8 +7,8 @@ ExternalProject_Add(googletest
     GIT_REPOSITORY    https://github.com/google/googletest.git
     GIT_TAG           main
     GIT_SHALLOW       1
-    SOURCE_DIR        "${CMAKE_CURRENT_SOURCE_DIR}/googletest-src"
-    BINARY_DIR        "${CMAKE_CURRENT_SOURCE_DIR}/googletest-build"
+    SOURCE_DIR        "${CMAKE_CURRENT_BINARY_DIR}/googletest-src"
+    BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/googletest-build"
     CONFIGURE_COMMAND ""
     BUILD_COMMAND     ""
     INSTALL_COMMAND   ""

CMakeLists.txt

@@ -173,10 +173,10 @@ endif()
 
 
 #-------------------
-# 3rd-party
+# Include 3rd-party
 #-------------------
-include_directories(3rd-party/json-${NLOHMANN_VERSION}/include)
-include_directories(3rd-party/plog-${PLOG_VERSION}/include)
+include_directories(${CMAKE_CURRENT_BINARY_DIR}/3rd-party/json-${NLOHMANN_VERSION}/include)
+include_directories(${CMAKE_CURRENT_BINARY_DIR}/3rd-party/plog-${PLOG_VERSION}/include)
 
 
 #-------------------