While the system helped users get started quickly, it also presented a unique problem by itself. As CMake grew, the code that supported this system became more and more fragile to the point of failing at random, with no indication of why it would fail. Additionally as OBS Studio 28.0 adopted a much nicer system, it is no longer necessary to have this system at all.
As an addition to this change, all systems that could rely on FindModules now do so. This drastically reduces the complexity of the CMake system, while allowing significantly more flexibility with what binaries are really being used. In the best case this should allow a prepared user to build StreamFX by itself within seconds.
The runners "windows-2022" and "windows-2019" both come with almost identical software, and we can still target Windows 10 21H2. The same goes for "macos-12", "macos-11" and "macos-10.15", where we can simply target 10.15 and get the same result. Only Ubuntu does not make it easy, as it doesn't easily allow targeting a certain OS version.
There is no point in completely separating these, as CMake can build out-of-tree just fine. Thus we can reduce the overall complexity significantly, and also detect far more problems ahead of time. As a side bonus, we get both debug and release packages in one go.
- Updates all workflow actions to the latest major version where possible.
- Updated GCC to version 10 on Ubuntu.
- Update Clang to version 14 on Ubuntu.
- Removed CodeQL as it turned out to be completely useless.
- Updated validation script.
- Updated build script
- Moved all auto-dependencies to a uniform subdirectory for easier caching and cleanup.
- Add an option to download or specify a path for libOBS+obs-frontend-api.
- Remove the dependency on the non-standard obs-frontend-apiConfig.cmake file.
- Add an option to download or specify a path for OBS Dependencies.
- Add an option to download or specify a path for Qt.
- Add an option to download or specify a path for AOM.
- Fix and improve architecture and platform detection.
- Fix some messages having two :, or no prefix at all.
- Fix detection of obs-frontend-api.
- Fix applying custom compiler and linker flags for MSVC and GNU-style builds.
- Use target_compile_options over add_compile_options for compatibility.
Due to OBS Studio not yet supporting ARM64 out of the box, we currently only provide builds for x86. Additionally, due to our use of C++17 (which we will not drop to C++14, don't bother asking), the minimum OSX version is 10.15.
The majority of users should have already switched or upgraded to Ubuntu 20.04 at this point, so there is no point in building further Ubuntu 18.04 versions. This saves us some CI slots, and also reduces the number of target systems to actually support.
