obs-smoke

Proves the Rust build of OBS (obs-rust/obs-studio) starts on Windows, macOS and Linux. Each platform builds the fork with ENABLE_RUST_LIBOBS=ON, checks that Rust code is linked into libobs, installs the package, launches OBS, checks that it identifies itself as OBS-Studio-Rust <version>, waits for ==== Startup complete in the OBS log and takes a desktop screenshot while OBS is still running. Upstream OBS builds are never used.

Latest results: https://obs-rust.github.io/obs-smoke/

Running

Actions → Smoke → Run workflow, or:

gh workflow run smoke.yml -R obs-rust/obs-smoke                     # obs-rust/obs-studio master
gh workflow run smoke.yml -R obs-rust/obs-smoke -f target=32.2.2    # a release tag of the fork
gh workflow run smoke.yml -R obs-rust/obs-smoke -f target=<branch-or-sha>

Input	Default	Meaning
target	main	Ref of obs-rust/obs-studio to build: main (= master), a tag, a branch or a commit SHA.

Builds run on the fork's CI images (windows-2025-vs2026 x64, macos-26 arm64, ubuntu-26.04 x86_64) with the fork's own build-obs/package-obs actions; a cold build takes roughly 30–60 minutes. Smoke runs on windows-2025, macos-26 and ubuntu-26.04 (under Xvfb).

Branches

Branch	Contents
main	Workflow and scripts.
smoke-results	Latest run only, force-pushed each run: results.json, smoke.png (stable montage linked above), <os>.png, logs/<os>.log.

A metrics history branch (peak RSS, startup time over time) is planned but not built yet; startup_seconds is already recorded per platform in results.json.

Layout

• .github/workflows/smoke.yml: resolve target → build the Rust fork per OS → per-OS smoke matrix → aggregate, push smoke-results, deploy Pages.
• scripts/run_obs.py: launch OBS, wait for startup, screenshot, write result.json.
• scripts/aggregate.py: merge per-OS results into results.json.
• scripts/build_site.py: render results.json into the Pages site.