Add cmake module for python binding + CMakeLists for aidge

CMakeLists.txt

+cmake_minimum_required(VERSION 3.11)
+
+project(Aidge)
+
+option(PYBIND "python binding" ON)
+
+# Add compile time reducer
+include("${CMAKE_CURRENT_LIST_DIR}/cmake/cotire.cmake")
+
+# For LINUX - GCC
+add_compile_options(-Wall -Wextra -fPIC)
+
+if (PYBIND)
+    set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/Modules")
+    include(PybindModuleCreation)
+    add_definitions(-DPYBIND)
+endif()
+
+add_subdirectory(${CMAKE_SOURCE_DIR}/aidge/_Core)
+# add_subdirectory(${CMAKE_SOURCE_DIR}/aidge/_CPU)
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aidge/_Core/CMakeLists.txt

 
-option(PYBIND "python binding" ON)
+# project(Aidge_Core)
 
-project(Aidge_Core)
+if (PYBIND)
+    generate_python_binding(aidge_core core)
+endif()
 
-add_library(aidge_core STATIC)
+add_library(core STATIC)
 
 # Add include directories 
-target_include_directories(aidge_core PUBLIC "include")
+target_include_directories(core PUBLIC "include")
 
 # Containers module
 file(GLOB_RECURSE src_files "src/*.cpp")
-target_sources(aidge_core PRIVATE ${src_files})
+target_sources(core PRIVATE ${src_files})
+
+set_property(TARGET core PROPERTY POSITION_INDEPENDENT_CODE ON)
+
+if (PYBIND)
+    target_include_directories(core PUBLIC $<BUILD_INTERFACE:${PYTHON_INCLUDE_DIRS}>)
+    target_link_libraries(core PRIVATE ${PYTHON_LIBRARIES})
+endif()
 
 
 # Activate compile time reducer for aidge_core
-set_target_properties(aidge_core PROPERTIES COTIRE_ADD_UNITY_BUILD FALSE)
+set_target_properties(core PROPERTIES COTIRE_ADD_UNITY_BUILD FALSE)
 # set_target_properties(n2d2_cpu_lib PROPERTIES COTIRE_CXX_PREFIX_HEADER_INIT "include/utils/Precompiled.hpp")
-cotire(aidge_core)
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+cotire(core)
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cmake/Modules/PybindModuleCreation.cmake

+function(generate_python_binding name library) 
+    Include(FetchContent)
+
+    FetchContent_Declare(
+    PyBind11
+    GIT_REPOSITORY https://github.com/pybind/pybind11.git
+    GIT_TAG        v2.10.4 # or a later release
+    )
+
+    FetchContent_MakeAvailable(PyBind11)
+    message(STATUS "Creating binding for module ${name}")
+    file(GLOB_RECURSE pybind_src_files "python_binding/*.cpp")
+    pybind11_add_module(${name} MODULE ${pybind_src_files} "NO_EXTRAS")
+    target_include_directories(${name} PUBLIC ${pybind11_INCLUDE_DIRS} "python_binding")
+    target_link_libraries(${name} PUBLIC ${library})
+endfunction()
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