Move all examples to cpp-example-collection

[stephen-derosa]

No description provided.

[Copilot]

Pull request overview

This PR removes the in-repo examples/ tree and replaces it with a cpp-example-collection git submodule, integrating its build into the main SDK build when LIVEKIT_BUILD_EXAMPLES is enabled.

Changes:

• Deleted all existing examples/** sources and the examples/CMakeLists.txt build.
• Added a new cpp-example-collection submodule and a CMake integration helper to configure/build it.
• Updated top-level CMake and gitignore to support the new examples workflow.

Reviewed changes

Copilot reviewed 50 out of 51 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
examples/tokens/set_integration_test_tokens.bash	Removed token helper script as part of examples migration.
examples/tokens/README.md	Removed token examples README as part of examples migration.
examples/tokens/gen_and_set.bash	Removed token generation script as part of examples migration.
examples/simple_rpc/README.md	Removed SimpleRpc technical README as part of examples migration.
examples/simple_rpc/main.cpp	Removed SimpleRpc example source as part of examples migration.
examples/simple_room/main.cpp	Removed SimpleRoom example source as part of examples migration.
examples/simple_room/fallback_capture.h	Removed SimpleRoom fallback capture header as part of examples migration.
examples/simple_room/fallback_capture.cpp	Removed SimpleRoom fallback capture implementation as part of examples migration.
examples/simple_joystick/utils.h	Removed joystick example utility header as part of examples migration.
examples/simple_joystick/utils.cpp	Removed joystick example utility implementation as part of examples migration.
examples/simple_joystick/sender.cpp	Removed joystick sender example as part of examples migration.
examples/simple_joystick/receiver.cpp	Removed joystick receiver example as part of examples migration.
examples/simple_joystick/json_utils.h	Removed joystick JSON utilities header as part of examples migration.
examples/simple_joystick/json_utils.cpp	Removed joystick JSON utilities implementation as part of examples migration.
examples/simple_data_stream/main.cpp	Removed SimpleDataStream example source as part of examples migration.
examples/ping_pong/utils.h	Removed ping/pong example utilities as part of examples migration.
examples/ping_pong/pong.cpp	Removed pong participant example as part of examples migration.
examples/ping_pong/ping.cpp	Removed ping participant example as part of examples migration.
examples/ping_pong/messages.h	Removed ping/pong message definitions as part of examples migration.
examples/ping_pong/json_converters.h	Removed ping/pong JSON converter header as part of examples migration.
examples/ping_pong/json_converters.cpp	Removed ping/pong JSON converter implementation as part of examples migration.
examples/ping_pong/constants.h	Removed ping/pong constants as part of examples migration.
examples/logging_levels/README.md	Removed logging-levels README as part of examples migration.
examples/logging_levels/custom_sinks.cpp	Removed custom sinks logging example as part of examples migration.
examples/logging_levels/basic_usage.cpp	Removed basic logging usage example as part of examples migration.
examples/hello_livekit/sender.cpp	Removed HelloLivekit sender example as part of examples migration.
examples/hello_livekit/receiver.cpp	Removed HelloLivekit receiver example as part of examples migration.
examples/common/wav_audio_source.h	Removed shared WAV source helper as part of examples migration.
examples/common/wav_audio_source.cpp	Removed shared WAV source helper implementation as part of examples migration.
examples/common/sdl_video_renderer.h	Removed shared SDL renderer helper as part of examples migration.
examples/common/sdl_video_renderer.cpp	Removed shared SDL renderer helper implementation as part of examples migration.
examples/common/sdl_media.h	Removed shared SDL media helper as part of examples migration.
examples/common/sdl_media.cpp	Removed shared SDL media helper implementation as part of examples migration.
examples/common/sdl_media_manager.h	Removed shared SDL media manager header as part of examples migration.
examples/common/sdl_media_manager.cpp	Removed shared SDL media manager implementation as part of examples migration.
examples/CMakeLists.txt	Removed examples build definition as part of examples migration.
examples/cmake/sdl3.cmake	Removed SDL3 FetchContent helper used by in-tree examples.
examples/bridge_rpc/README.md	Removed bridge RPC example docs as part of examples migration.
examples/bridge_rpc/custom_receiver.cpp	Removed bridge RPC receiver example as part of examples migration.
examples/bridge_rpc/custom_caller.cpp	Removed bridge RPC caller example as part of examples migration.
examples/bridge_mute_unmute/receiver.cpp	Removed bridge mute/unmute receiver example as part of examples migration.
examples/bridge_mute_unmute/README.md	Removed bridge mute/unmute docs as part of examples migration.
examples/bridge_mute_unmute/caller.cpp	Removed bridge mute/unmute caller example as part of examples migration.
examples/bridge_human_robot/robot.cpp	Removed bridge human/robot robot example as part of examples migration.
examples/bridge_human_robot/human.cpp	Removed bridge human/robot human example as part of examples migration.
CMakeLists.txt	Switched examples build from add_subdirectory(examples) to cpp-example-collection integration.
cmake/cpp-example-collection.cmake	Added helper to install SDK then configure/build the cpp-example-collection submodule.
.gitmodules	Added cpp-example-collection submodule entry.
.gitignore	Ignored local-install/ used by the new examples build flow.

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[Copilot]

Both install_livekit_sdk_for_examples and cpp_example_collection are custom targets with no declared OUTPUT/BYPRODUCTS. CMake generators treat these as always-out-of-date, so enabling LIVEKIT_BUILD_EXAMPLES will re-run the install + external configure/build steps on every build invocation. Consider switching to ExternalProject_Add or using stamp files via add_custom_command(OUTPUT ...) so these steps are incremental and only re-run when inputs change.