Add Python setup to CMakeLists.txt

CMakeLists.txt

@@ -1,5 +1,10 @@
 cmake_minimum_required(VERSION 3.24)
 set(PROJECT_NAME supercell-wx)
+
+include(tools/scwx_config.cmake)
+
+scwx_python_setup()
+
 project(${PROJECT_NAME}
         VERSION      0.4.9
         DESCRIPTION  "Supercell Wx is a free, open source advanced weather radar viewer."
@@ -11,8 +16,6 @@ set(CMAKE_POLICY_DEFAULT_CMP0077 NEW)
 set(CMAKE_POLICY_DEFAULT_CMP0079 NEW)
 set(CMAKE_POLICY_DEFAULT_CMP0148 OLD) # aws-sdk-cpp uses FindPythonInterp
 
-include(tools/scwx_config.cmake)
-
 scwx_output_dirs_setup()
 
 enable_testing()

CMakePresets.json

@@ -12,7 +12,8 @@
             "generator": "Ninja",
             "binaryDir": "${sourceDir}/build/${presetName}",
             "cacheVariables": {
-                "CMAKE_PROJECT_TOP_LEVEL_INCLUDES": "${sourceDir}/external/cmake-conan/conan_provider.cmake"
+                "CMAKE_PROJECT_TOP_LEVEL_INCLUDES": "${sourceDir}/external/cmake-conan/conan_provider.cmake",
+                "SCWX_VIRTUAL_ENV": "${sourceDir}/.venv"
             }
         },
         {

tools/lib/run-cmake-configure.bat

@@ -6,7 +6,7 @@
     -DCMAKE_PROJECT_TOP_LEVEL_INCLUDES="%script_dir%\..\..\external\cmake-conan\conan_provider.cmake" ^
     -DCONAN_HOST_PROFILE=%conan_profile% ^
     -DCONAN_BUILD_PROFILE=%conan_profile% ^
-    -DSCWX_VENV_PATH=%venv_path%
+    -DSCWX_VIRTUAL_ENV=%venv_path%
 
 @if defined build_type (
     set cmake_args=%cmake_args% ^

tools/scwx_config.cmake

@@ -17,3 +17,39 @@ macro(scwx_output_dirs_setup)
     set(CMAKE_LIBRARY_OUTPUT_DIRECTORY_MINSIZEREL ${CMAKE_CURRENT_BINARY_DIR}/MinSizeRel/lib)
     set(CMAKE_LIBRARY_OUTPUT_DIRECTORY_DEBUG ${CMAKE_CURRENT_BINARY_DIR}/Debug/lib)
 endmacro()
+
+macro(scwx_python_setup)
+    set(SCWX_VIRTUAL_ENV "" CACHE STRING "Python Virtual Environment")
+
+    # Use a Python Virtual Environment
+    if (SCWX_VIRTUAL_ENV)
+        set(ENV{VIRTUAL_ENV} "${SCWX_VIRTUAL_ENV}")
+
+        if (WIN32)
+            set(Python3_EXECUTABLE "$ENV{VIRTUAL_ENV}/Scripts/python.exe")
+        else()
+            set(Python3_EXECUTABLE "$ENV{VIRTUAL_ENV}/bin/python")
+        endif()
+
+        message(STATUS "Using virtual environment: $ENV{VIRTUAL_ENV}")
+    else()
+        message(STATUS "Python virtual environment undefined")
+    endif()
+
+    # Find Python
+    find_package(Python3 REQUIRED COMPONENTS Interpreter)
+
+    # Verify we're using the right Python
+    message(STATUS "Python executable: ${Python3_EXECUTABLE}")
+    message(STATUS "Python version: ${Python3_VERSION}")
+
+    # Only if we are in an application defined virtual environment
+    if (SCWX_VIRTUAL_ENV)
+        # Setup pip
+        set(PIP_ARGS install --upgrade -r "${CMAKE_SOURCE_DIR}/requirements.txt")
+
+        # Install requirements
+        execute_process(COMMAND ${Python3_EXECUTABLE} -m pip ${PIP_ARGS}
+                        RESULT_VARIABLE PIP_RESULT)
+    endif()
+endmacro()