refactor(cxx): improve project structure and simplify cmake scripts

- Remove unnecessary comments and sections
- Use variables for project name and directories
- Simplify test setup and discovery
- Update build settings for better portability
- Improve code organization and readability

template/cxx/{{cookiecutter.project_slug}}/CMakeLists.txt

@@ -1,72 +1,56 @@
-# Specify the minimum version of CMake required
 cmake_minimum_required(VERSION 3.25)
 
-# Define the project
 project({{cookiecutter.project_slug}}
         VERSION {{cookiecutter.project_version}}
         DESCRIPTION "{{cookiecutter.project_desc}}"
         HOMEPAGE_URL "https://github.com/{{cookiecutter.__gh_slug}}"
         LANGUAGES CXX
 )
 
-# ===================== Build Settings =====================
-
-# Add custom cmake modules path
+# Custom modules
 list(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake)
 
-# Set C++ standards
+# Build settings
 set(CMAKE_CXX_STANDARD {{cookiecutter.cxx_standard_version}})
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
-
-# Set compile options
-set(CMAKE_EXPORT_COMPILE_COMMANDS ON)  # Enable compile commands for clangd
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 # Set architecture for macOS (if applicable)
 if(APPLE)
     set(CMAKE_OSX_ARCHITECTURES "arm64")
 endif()
 
-# ===================== Output Directories =====================
+# Build type configuration
+if(NOT CMAKE_BUILD_TYPE)
+    set(CMAKE_BUILD_TYPE Release)
+endif()
 
-# Use generator expressions for output directories
+# Set output directories
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "$<1:${CMAKE_BINARY_DIR}/bin>")
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "$<1:${CMAKE_BINARY_DIR}/lib>")
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "$<1:${CMAKE_BINARY_DIR}/lib>")
 
-# ===================== Source Files =====================
-
-# Collect source files
+# Source files configuration
+set(SRC_DIR ${CMAKE_SOURCE_DIR}/src)
+set(INCLUDE_DIR ${CMAKE_SOURCE_DIR}/include)
 file(GLOB_RECURSE SOURCES CONFIGURE_DEPENDS
-        ${CMAKE_SOURCE_DIR}/src/*.cpp
+        ${SRC_DIR}/*.cpp
 )
 file(GLOB_RECURSE HEADERS CONFIGURE_DEPENDS
-        ${CMAKE_SOURCE_DIR}/include/*.h
+        ${INCLUDE_DIR}/*.h
 )
 
-# ===================== Library Target =====================
-
-# Create library target
-add_library({{cookiecutter.package_name}}_lib ${SOURCES} ${HEADERS})
-
-# Set include directories for the library
-target_include_directories({{cookiecutter.package_name}}_lib
+# Library target
+add_library(${PROJECT_NAME}_lib ${SOURCES} ${HEADERS})
+target_include_directories(${PROJECT_NAME}_lib
         PUBLIC
-        ${CMAKE_SOURCE_DIR}/include
-)
-
-# ===================== Executable Target =====================
-
-# Create executable target
-add_executable({{cookiecutter.project_slug}} ${CMAKE_SOURCE_DIR}/src/main.cpp)
-
-# Link library and CUDA libraries to the executable
-target_link_libraries({{cookiecutter.project_slug}}
-        PRIVATE
-        {{cookiecutter.package_name}}_lib
+        $<BUILD_INTERFACE:${INCLUDE_DIR}>
 )
 
-# ===================== Tests =====================
+# Executable target
+add_executable(${PROJECT_NAME} ${SRC_DIR}/main.cpp)
+target_link_libraries(${PROJECT_NAME} PRIVATE ${PROJECT_NAME}_lib)
 
-# Add tests subdirectory
+# Tests
 add_subdirectory(tests)

template/cxx/{{cookiecutter.project_slug}}/tests/CMakeLists.txt

@@ -1,5 +1,3 @@
-# ===================== Google Test Setup =====================
-
 # Enable testing
 enable_testing()
 
@@ -9,30 +7,19 @@ FetchContent_Declare(
         googletest
         URL https://github.com/google/googletest/archive/refs/tags/v1.15.2.tar.gz
 )
-
-# For Windows: Prevent overriding the parent project's compiler/linker settings
 set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
 FetchContent_MakeAvailable(googletest)
 
-# ===================== Test Sources =====================
-
 # Collect test source files
 file(GLOB_RECURSE TEST_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp)
 
-# ===================== Test Executable =====================
-
 # Create test executable
-add_executable({{cookiecutter.project_slug}}-tests ${TEST_SOURCES})
-
-# Link the test executable with Google Test
-target_link_libraries({{cookiecutter.project_slug}}-tests
-        PRIVATE
-        {{cookiecutter.package_name}}_lib
+add_executable(${PROJECT_NAME}-tests ${TEST_SOURCES})
+target_link_libraries(${PROJECT_NAME}-tests PRIVATE
         GTest::gtest_main
+        ${PROJECT_NAME}_lib
 )
 
-# ===================== Test Discovery =====================
-
-# Discover tests
+# Enable test discovery
 include(GoogleTest)
-gtest_discover_tests({{cookiecutter.project_slug}}-tests)
+gtest_discover_tests(${PROJECT_NAME}-tests)