Add cmake target creation helpers

[olpipi]

• Isolate include of openvino cmakes via find_package. Wrap this find_package into func to not pollute outer cmake environment.
• Write target creation helpers to define building dirs correctly and eliminate extra boilerplate

CVS-146355

[Copilot]

Pull Request Overview

This PR introduces CMake target creation helpers to streamline build system configuration and eliminate boilerplate code. It encapsulates OpenVINO find_package calls in a function to prevent cmake environment pollution and centralizes output directory management.

• Added helper functions genai_add_target, genai_add_tool_target, and ov_add_sample for declarative target creation
• Centralized output directory definitions in global_properties.cmake with configurable variables
• Replaced repetitive CMakeLists.txt patterns across samples and tools with function calls

Reviewed Changes

Copilot reviewed 18 out of 18 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
cmake/add_target_helpers.cmake	Implements new target creation helper functions with declarative API
cmake/global_properties.cmake	Defines centralized output directory variables for different target types
CMakeLists.txt	Wraps OpenVINO find_package in load_openvino() function and includes new helpers
samples/CMakeLists.txt	Adds ov_add_sample function and output directory configuration
tools/continuous_batching/*/CMakeLists.txt	Migrates to genai_add_tool_target helper function
samples/*/CMakeLists.txt	Migrates sample targets to use ov_add_sample helper function
src/*/CMakeLists.txt	Updates to use centralized output directory variables
tests/cpp/CMakeLists.txt	Adds output directory configuration for test targets

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[Copilot]

Pull Request Overview

Copilot reviewed 18 out of 18 changed files in this pull request and generated 3 comments.

Comments suppressed due to low confidence (1)

src/cpp/CMakeLists.txt:1

• [nitpick] Missing trailing whitespace was removed which improves formatting consistency.

# Copyright (C) 2018-2025 Intel Corporation

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[Copilot]

[nitpick] Trailing whitespace was removed which improves formatting consistency.

[Copilot]

The generator expressions $<1:...> were removed from these properties. This could cause issues if these variables don't contain generator expressions themselves, as the original code used generator expressions consistently throughout the project.

Suggested change

	ARCHIVE_OUTPUT_DIRECTORY "${GENAI_ARCHIVE_OUTPUT_DIRECTORY}"
	LIBRARY_OUTPUT_DIRECTORY "${GENAI_LIBRARY_OUTPUT_DIRECTORY}"
	RUNTIME_OUTPUT_DIRECTORY "${GENAI_RUNTIME_OUTPUT_DIRECTORY}"
	ARCHIVE_OUTPUT_DIRECTORY "$<1:${GENAI_ARCHIVE_OUTPUT_DIRECTORY}>"
	LIBRARY_OUTPUT_DIRECTORY "$<1:${GENAI_LIBRARY_OUTPUT_DIRECTORY}>"
	RUNTIME_OUTPUT_DIRECTORY "$<1:${GENAI_RUNTIME_OUTPUT_DIRECTORY}>"

[Copilot]

The file copy operation has been changed from a configure-time file(COPY ...) to a build-time add_custom_command. This could cause build failures if GENAI_LIBRARY_OUTPUT_DIRECTORY doesn't exist at build time, since the custom command won't create the destination directory.

[Wovchena]

Please verify after couple of days that the nightly archive samples build isn't broken

[mryzhov]

Is there any other places where this function is used?

[mryzhov]

Why we can't use PROJECT_<>_DIR (BINARY, ARCHIVE etc) here instead?