Build GenAI via OpenVINO wheel (#958)

.github/workflows/windows.yml

@@ -243,7 +243,7 @@ jobs:
       - name: Test bindings (wheel)
         run: |
           . "${{ env.OV_INSTALL_DIR }}/setupvars.ps1"
-          python -m pip install . --verbose
+          python -m pip install . --verbose --find-links ${env:OV_INSTALL_DIR}/wheels
           python -m pytest -v ./tests/python_tests/ --ignore ./tests/python_tests/test_whisper_generate_api.py --ignore ./tests/python_tests/test_vlm_api.py -k "not test_set_chat_template"
 
   genai_python_lib_whisper:
@@ -307,7 +307,7 @@ jobs:
       - name: Test bindings (wheel)
         run: |
           . "${{ env.OV_INSTALL_DIR }}/setupvars.ps1"
-          python -m pip install . --verbose
+          python -m pip install . --verbose --find-links ${env:OV_INSTALL_DIR}/wheels
           python -m pytest -v ./tests/python_tests/test_whisper_generate_api.py -k "not test_smoke"
 
   genai_python_lib_vlm:

CMakeLists.txt

@@ -31,13 +31,24 @@ project(OpenVINOGenAI
         HOMEPAGE_URL "https://github.com/openvinotoolkit/openvino.genai"
         LANGUAGES CXX C)
 
+# Looking for OpenVINO in the python distribution. It doesn't work for cross-compiling build
+if(NOT CMAKE_CROSSCOMPILING)
+    find_package(Python3 REQUIRED)
+    execute_process(
+        COMMAND ${Python3_EXECUTABLE} -c "from openvino.utils import get_cmake_path; print(get_cmake_path(), end='')"
+        OUTPUT_VARIABLE OpenVINO_DIR_PY
+        ERROR_QUIET
+    )
+endif()
+
 # Find OpenVINODeveloperPackage first to compile with SDL flags
 find_package(OpenVINODeveloperPackage ${OpenVINOGenAI_VERSION} QUIET
              COMPONENTS Runtime
              PATHS "${OpenVINO_DIR}")
 if(NOT OpenVINODeveloperPackage_FOUND)
     find_package(OpenVINO ${OpenVINOGenAI_VERSION} REQUIRED
-                 COMPONENTS Runtime)
+                 COMPONENTS Runtime
+                 PATHS "${OpenVINO_DIR_PY}")
 endif()
 
 include(cmake/features.cmake)

pyproject.toml

@@ -37,7 +37,8 @@ options = {"BUILD_TOKENIZERS" = "OFF"}
 [build-system]
 requires = [
     "py-build-cmake@git+https://github.com/tttapa/py-build-cmake@7ab73da351c7140f06d727a8705bece4cf544cd9",
-    "cmake~=3.23"
+    "cmake~=3.23",
+    "openvino~=2025.0.0.0.dev"
 ]
 build-backend = "py_build_cmake.build"