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Author SHA1 Message Date
shadowdaoandClaude Sonnet 5 f27b1c0b45 Fix Windows configure: point find_package at OBS's exported w32-pthreads
Build / macOS (macos-latest) (push) Successful in 28s
Build / Linux (ubuntu-24.04) (push) Successful in 46s
Build / Windows (windows-latest) (push) Successful in 13m44s
The libobs_DIR fix in 79de5e8f worked -- libobsConfig.cmake now loads on the
Windows runner -- and immediately exposed the next link in the same chain.
obs-studio's libobsConfig.cmake.in carries, under if(MSVC), a hard

    find_dependency(w32-pthreads REQUIRED)

because libobs/cmake/os-windows.cmake links PUBLIC OBS::w32-pthreads. That
lookup failed and aborted the whole configure.

The cause is not a missing export, which was the first hypothesis:
deps/w32-pthreads/CMakeLists.txt ends in target_export(w32-pthreads), the
same helper libobs itself uses, so the install(TARGETS ... EXPORT),
install(EXPORT ... NAMESPACE OBS::) and generated w32-pthreadsConfig.cmake
all exist and all run -- CMake would have hard-errored at generate time if
w32-pthreads were in no export set, and our own patch adds it under the
libobs subtree, which installs before the tolerated obs-frontend-api install
error stops the rest.

It is the same search-path mismatch libobs itself had: target_export installs
to <prefix>/${OBS_CMAKE_DESTINATION}/<target>/, which on Windows is
<prefix>/cmake/w32-pthreads/ -- a shape find_package's Config-mode suffixes
never search. So apply the same remedy CMake's own error message suggests,
and apply it before the find_package(libobs) call that transitively triggers
the find_dependency.

Also adds a fallback Findw32-pthreads.cmake, reached only when that export is
genuinely absent, which reconstructs OBS::w32-pthreads from the bootstrap's
artifacts, and a repair for a locationless imported target mirroring the
existing OBS::libobs one. The fallback deliberately lives in
cmake/windows/find-fallback/ rather than cmake/windows/, which osconfig.cmake
already puts on CMAKE_MODULE_PATH: a find module there would shadow OBS's
real exported package on every build, since MODULE mode is tried first.

Verified on Linux (this is a Linux sandbox) by reconstructing the exact
failure -- a stub libobsConfig.cmake with the same find_dependency, reached
through libobs_DIR -- and confirming it fails without this block and passes
with it, and separately that deleting the package routes find_package through
the fallback module instead. A full Linux configure of the repo is unchanged;
both new blocks are inside if(OS_WINDOWS) and the upstream find_dependency is
inside if(MSVC), so macOS and Linux are no-ops.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RL8abRmgFXkVASHkkqiJbE
2026-09-07 05:40:38 -07:00
shadowdaoandClaude Sonnet 5 8494485351 ci: build the real OBS adapter on all three platforms
Build / macOS (macos-latest) (push) Failing after 12s
Build / Linux (ubuntu-latest) (push) Failing after 34s
Build / Windows (windows-latest) (push) Failing after 8m13s
Two things: unbreak the Windows compile, and give macOS/Windows a libobs.

MSVC fix. test_json.cpp failed to compile on the Windows runner with
"a universal-character-name specifies an invalid character" and "illegal
escape sequence" -- MSVC still forms escape sequences and
universal-character-names INSIDE raw string literals, which it must not.
Every JSON input containing a backslash is now built by string concatenation
from a single kBS constant, which also sidesteps the separate murky corner of
translation phase 1 where a doubled backslash immediately followed by 'u' has
historically been treated inconsistently. Same 158 checks, no behaviour
change.

OBS SDK bootstrap for macOS/Windows. Adopts obsproject/obs-plugintemplate's
buildspec machinery -- buildspec.json plus cmake/common/buildspec_common.cmake
and cmake/{macos,windows}/buildspec.cmake -- so those two platforms get a real
libobs and build the actual plugin module instead of only the core library.
Linux is untouched and still uses Ubuntu's libobs-dev
(-DSTPLUGIN_BOOTSTRAP_OBS=OFF); the bootstrap only runs where there is no
system package.

Trimmed against upstream, each change recorded in the file that makes it:

 - qt6 is dropped from dependencies_list on both platforms. The properties UI
   is plain obs_properties_* and nothing here links Qt.
 - The OBS sub-build builds and installs the `libobs` target, not
   `obs-frontend-api`. Building the frontend API is what would drag Qt back in,
   and this plugin never calls it.
 - The sub-build is configured with ENABLE_UI=OFF and ENABLE_SCRIPTING=OFF as
   well as upstream's ENABLE_FRONTEND=OFF: the pinned OBS predates
   ENABLE_FRONTEND and gates its Qt-dependent UI on ENABLE_UI, so without this
   it configures the whole OBS UI and demands Qt anyway.
 - Only the Release configuration is built and installed, not Debug as well.
   Nothing consumes a debug libobs and it doubles the slowest CI step.
 - Only the dependency-acquisition modules are vendored. The template's
   compilerconfig/defaults/helpers/xcode modules drive its own target and
   bundle layout, which this project does not use.

obs-studio is pinned to 30.0.2, deliberately low: OBS refuses to load a module
built against a NEWER libobs than the one running it and accepts older ones, so
this pin IS the minimum OBS version users need. 30.0.2 is also exactly what
Ubuntu 24.04's libobs-dev ships, which puts all three platforms on one floor,
and it supports the modern CMake layout the bootstrap drives via
-DOBS_CMAKE_VERSION=3.0.0. prebuilt is obs-deps 2023-11-03 with the hashes
obs-studio 30.0.2's own buildspec.json publishes; the obs-studio source
archive hashes were computed from the GitHub tag archives.

The workflow also prints what was actually produced on each platform (ldd /
otool / dir over build/package) and uploads it as an artifact, so "does this
even link against libobs" is answered by CI output rather than assumed.

Verified locally: the Linux path is unchanged by all of this -- a fresh
configure still finds libobs-dev, and ctest is 6/6. The macOS and Windows
bootstrap can only be verified by CI; that is what this push is for.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RL8abRmgFXkVASHkkqiJbE
2026-09-06 22:02:17 -07:00