Added CMake build variables

Author: bbeaulant

CMakeLists.txt

@@ -2,7 +2,8 @@ cmake_minimum_required(VERSION 3.15.0)
 
 project(TreeSearchSolver LANGUAGES CXX)
 
-# Options.
+# Build options.
+option(TREESEARCHSOLVER_BUILD_TEST "Build the unit tests" ON)
 option(TREESEARCHSOLVER_BUILD_EXAMPLES "Build examples" ON)
 
 # Avoid FetchContent warning.
@@ -17,7 +18,9 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 # Add sub-directories.
 add_subdirectory(extern)
 add_subdirectory(src)
-add_subdirectory(test)
+if(TREESEARCHSOLVER_BUILD_TEST)
+  add_subdirectory(test)
+endif()
 if(TREESEARCHSOLVER_BUILD_EXAMPLES)
     add_subdirectory(examples)
 endif()

extern/CMakeLists.txt

@@ -1,11 +1,35 @@
 # Enable FetchContent.
 include(FetchContent)
 
+# Fetch boost.
+if (TREESEARCHSOLVER_BUILD_TEST OR TREESEARCHSOLVER_BUILD_EXAMPLES)
+  set(BOOST_INCLUDE_LIBRARIES thread filesystem system program_options dynamic_bitset)
+  set(BOOST_ENABLE_CMAKE ON)
+  FetchContent_Declare(
+          Boost
+          URL https://github.com/boostorg/boost/releases/download/boost-1.84.0/boost-1.84.0.tar.xz
+          EXCLUDE_FROM_ALL)
+  FetchContent_MakeAvailable(Boost)
+endif()
+
+# Fetch googletest.
+if(TREESEARCHSOLVER_BUILD_TEST)
+  FetchContent_Declare(
+          googletest
+          URL https://github.com/google/googletest/archive/03597a01ee50ed33e9dfd640b249b4be3799d395.zip)
+  # For Windows: Prevent overriding the parent project's compiler/linker settings
+  set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+  set(INSTALL_GTEST OFF)
+  FetchContent_MakeAvailable(googletest)
+endif()
+
 # Fetch fontanf/orproblems.
-FetchContent_Declare(
-    orproblems
-    GIT_REPOSITORY https://github.com/fontanf/orproblems.git
-    GIT_TAG ba099d6bd0ac186e4113fe340789a1800fa72852
-    #SOURCE_DIR "${PROJECT_SOURCE_DIR}/../orproblems/"
-    EXCLUDE_FROM_ALL)
-FetchContent_MakeAvailable(orproblems)
+if(TREESEARCHSOLVER_BUILD_EXAMPLES)
+  FetchContent_Declare(
+      orproblems
+      GIT_REPOSITORY https://github.com/fontanf/orproblems.git
+      GIT_TAG ba099d6bd0ac186e4113fe340789a1800fa72852
+#      SOURCE_DIR "${PROJECT_SOURCE_DIR}/../orproblems/"
+      EXCLUDE_FROM_ALL)
+  FetchContent_MakeAvailable(orproblems)
+endif()