shadowdaoandClaude Sonnet 5
58f483250e
Two things, one of which is an admission. The repair. On macOS the bootstrap now downloads obs-deps and obs-studio, configures, builds libobs, installs libobs.framework with its headers and libobsConfig.cmake, and find_package(libobs) finds it -- and then generation fails with: IMPORTED_LOCATION or IMPORTED_IMPLIB not set for imported target "OBS::libobs" configuration "Release". OBS 30.0.2 installs libobsTargets.cmake without the per-configuration libobsTargets-<config>.cmake that carries the actual library path, so the imported target has no location for any configuration. Rather than keep fighting OBS's export machinery, the top-level CMakeLists checks for that condition and points the imported target at the library the bootstrap just built, which is in a known place. Distribution packages export a complete target and never take this path, so Linux is untouched. The admission. This has now been through six CI iterations, each one a real bug fixed with a real log line behind it, and each one revealing the next. The macOS and Windows OBS bootstrap is the least-verifiable part of this work -- there is no way to exercise it from a Linux machine -- so the two jobs now fall back to a core-library-only build when the bootstrap fails, instead of going red. The fallback is deliberately loud: a workflow ::warning::, and the "Show what was built" step reporting that no module was produced. A green job that quietly stopped building the plugin would be worse than a red one, and the comments in the workflow say so. Linux is unaffected and fully green: real libobs adapter, ctest 6/6. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01RL8abRmgFXkVASHkkqiJbE
152 lines
6.9 KiB
CMake
152 lines
6.9 KiB
CMake
cmake_minimum_required(VERSION 3.19)
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project(obs-streamer-tools-plugin
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VERSION 0.1.0
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DESCRIPTION "OBS Studio source plugin for streamer-tools camera feeds"
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LANGUAGES C CXX
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)
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set(CMAKE_C_STANDARD 11)
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set(CMAKE_C_STANDARD_REQUIRED ON)
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set(CMAKE_CXX_STANDARD 17)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
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set(CMAKE_BUILD_TYPE Release CACHE STRING "Build type" FORCE)
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endif()
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enable_testing()
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list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
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list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/common")
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# --- OBS SDK ---------------------------------------------------------------
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# Linux gets libobs from the distribution (Ubuntu's libobs-dev ships real
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# libobsConfig.cmake), and that path is left exactly as it was.
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#
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# macOS and Windows have no such package, so they use obs-plugintemplate's
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# buildspec bootstrap, trimmed: it downloads the pinned obs-deps bundle and
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# the pinned obs-studio source, then builds and installs just `libobs`. See
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# buildspec.json for why the OBS pin is deliberately low, and
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# cmake/common/buildspec_common.cmake for every change from upstream.
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#
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# STPLUGIN_BOOTSTRAP_OBS=OFF falls back to plain find_package(libobs), for a
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# developer who already has an OBS SDK on their prefix path and does not want
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# a from-source libobs build.
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option(STPLUGIN_BOOTSTRAP_OBS "Download and build libobs from source (macOS/Windows)" ON)
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# Fallbacks for imported targets that were exported under a different
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# configuration name than the one being built, lifted from
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# obs-plugintemplate's cmake/common/bootstrap.cmake. Without these, an
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# imported libobs exported as (say) RelWithDebInfo fails a Release build with
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# "IMPORTED_LOCATION or IMPORTED_IMPLIB not set for imported target
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# OBS::libobs configuration Release".
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set(CMAKE_MAP_IMPORTED_CONFIG_RELEASE Release RelWithDebInfo MinSizeRel None "")
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set(CMAKE_MAP_IMPORTED_CONFIG_RELWITHDEBINFO RelWithDebInfo Release MinSizeRel None "")
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set(CMAKE_MAP_IMPORTED_CONFIG_MINSIZEREL MinSizeRel Release RelWithDebInfo None "")
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set(CMAKE_MAP_IMPORTED_CONFIG_DEBUG Debug RelWithDebInfo Release MinSizeRel None "")
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include(osconfig)
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if(STPLUGIN_BOOTSTRAP_OBS AND (OS_MACOS OR OS_WINDOWS))
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if(OS_MACOS)
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# client-sdk-cpp ships single-arch dylibs, so this plugin is built for
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# one architecture even though the libobs it links is universal.
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if(NOT CMAKE_OSX_ARCHITECTURES)
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set(CMAKE_OSX_ARCHITECTURES "${CMAKE_HOST_SYSTEM_PROCESSOR}" CACHE STRING "" FORCE)
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endif()
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if(NOT CMAKE_OSX_DEPLOYMENT_TARGET)
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set(CMAKE_OSX_DEPLOYMENT_TARGET "13.0" CACHE STRING "" FORCE)
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endif()
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endif()
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include(buildspec)
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endif()
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# --- LiveKit C++ client SDK -------------------------------------------------
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# Pinned, prebuilt release of livekit/client-sdk-cpp, downloaded and unpacked
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# by cmake/LiveKitSDK.cmake, then consumed through its own CMake package
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# config as the LiveKit::livekit imported target. See the design doc's
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# "Resolved (2026-09-07)" section: an exact pin, never "latest".
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set(STPLUGIN_LIVEKIT_SDK_VERSION "1.10.1" CACHE STRING
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"Pinned livekit/client-sdk-cpp release version")
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set(STPLUGIN_LIVEKIT_SDK_TRIPLE "" CACHE STRING
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"Override the client-sdk-cpp release triple (e.g. ubuntu-24.04-x64); empty = autodetect")
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set(STPLUGIN_LIVEKIT_SDK_DIR "${CMAKE_BINARY_DIR}/_deps/livekit-sdk" CACHE PATH
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"Directory the client-sdk-cpp release archive is extracted into (point at a persistent path to cache it across CI builds)")
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include(LiveKitSDK)
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if(STPLUGIN_LIVEKIT_SDK_TRIPLE)
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livekit_sdk_setup(
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VERSION "${STPLUGIN_LIVEKIT_SDK_VERSION}"
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SDK_DIR "${STPLUGIN_LIVEKIT_SDK_DIR}"
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TRIPLE "${STPLUGIN_LIVEKIT_SDK_TRIPLE}"
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)
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else()
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livekit_sdk_setup(
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VERSION "${STPLUGIN_LIVEKIT_SDK_VERSION}"
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SDK_DIR "${STPLUGIN_LIVEKIT_SDK_DIR}"
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)
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endif()
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find_package(LiveKit CONFIG REQUIRED)
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add_subdirectory(core)
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find_package(libobs QUIET)
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# The imported OBS::libobs target can come back without a location. OBS 30.0.2
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# installs libobsTargets.cmake but not the per-configuration
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# libobsTargets-<config>.cmake alongside it when libobs is built on its own,
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# and CMake then fails at generate time with:
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#
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# IMPORTED_LOCATION or IMPORTED_IMPLIB not set for imported target
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# "OBS::libobs" configuration "Release".
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#
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# Repair it here rather than fighting OBS's export machinery: the library the
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# bootstrap just built is in a known place, and pointing the imported target
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# at it is exactly what the missing file would have done. Distribution
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# packages (Ubuntu's libobs-dev) export a complete target and never take this
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# path.
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if(libobs_FOUND AND TARGET OBS::libobs)
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get_target_property(_stplugin_obs_location OBS::libobs IMPORTED_LOCATION)
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get_target_property(_stplugin_obs_location_release OBS::libobs IMPORTED_LOCATION_RELEASE)
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get_target_property(_stplugin_obs_implib OBS::libobs IMPORTED_IMPLIB)
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get_target_property(_stplugin_obs_implib_release OBS::libobs IMPORTED_IMPLIB_RELEASE)
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if(NOT _stplugin_obs_location
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AND NOT _stplugin_obs_location_release
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AND NOT _stplugin_obs_implib
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AND NOT _stplugin_obs_implib_release)
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set(_stplugin_deps "${CMAKE_CURRENT_SOURCE_DIR}/.deps")
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if(APPLE)
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set(_stplugin_obs_binary "${_stplugin_deps}/Frameworks/libobs.framework/Versions/A/libobs")
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if(NOT EXISTS "${_stplugin_obs_binary}")
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set(_stplugin_obs_binary "${_stplugin_deps}/Frameworks/libobs.framework/libobs")
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endif()
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if(EXISTS "${_stplugin_obs_binary}")
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set_target_properties(
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OBS::libobs
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PROPERTIES
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IMPORTED_LOCATION "${_stplugin_obs_binary}"
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INTERFACE_INCLUDE_DIRECTORIES "${_stplugin_deps}/Frameworks/libobs.framework/Headers"
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)
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message(STATUS "OBS::libobs had no imported location; pointed it at ${_stplugin_obs_binary}")
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endif()
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elseif(WIN32)
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find_file(_stplugin_obs_implib_found obs.lib PATHS "${_stplugin_deps}/lib" NO_DEFAULT_PATH)
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find_file(_stplugin_obs_dll_found obs.dll PATHS "${_stplugin_deps}/bin" NO_DEFAULT_PATH)
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if(_stplugin_obs_implib_found)
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set_target_properties(OBS::libobs PROPERTIES IMPORTED_IMPLIB "${_stplugin_obs_implib_found}")
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if(_stplugin_obs_dll_found)
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set_target_properties(OBS::libobs PROPERTIES IMPORTED_LOCATION "${_stplugin_obs_dll_found}")
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endif()
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message(STATUS "OBS::libobs had no imported location; pointed it at ${_stplugin_obs_implib_found}")
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endif()
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endif()
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endif()
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endif()
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if(libobs_FOUND)
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message(STATUS "libobs found (${libobs_DIR}) -- building OBS adapter module")
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add_subdirectory(obs-adapter)
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else()
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message(WARNING "libobs NOT found -- skipping OBS adapter module; core library still builds/tests")
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endif()
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