History

Cobb 1e89c0739a All checks were successful build-apk / build-and-publish (push) Successful in 9m28s Details gitleaks / scan (push) Successful in 1m3s Details vc=90: cold-start store hydration off-Main + video-page status-bar fix + RYD FFI slim Resume + Enrichment stores no longer JSON-decode on the main thread in Application.onCreate (Resume is the heaviest cold-start cost: ~50-100ms decode at its 100k-entry cap). Both seed an empty StateFlow and hydrate off-thread on their PrefsWriter single-thread dispatcher. Mutations that arrive before the hydrate finishes defer onto that FIFO dispatcher (a hydrated gate) so they re-run on fully-loaded state -- correct for adds AND clears; a naive loaded+live merge would resurrect a clear that landed on the empty seed. Subscriptions/Playlists/History/Settings stay eager (tiny + rendered directly -> would flash empty). (audit 2.1) Video page: details/related rows no longer leak into the status-bar strip above the player when scrolled. topPadding is now a layout inset on the detail LazyColumn, so the scroll viewport begins+clips at the player's bottom edge instead of letting rows scroll up over the clock/signal. RYD: dropped the dead rating + view_count fields from the strawcore RydVotes FFI Record + Kotlin shim -- only likes/dislikes are rendered; RYD's rating restates the like/dislike ratio and its viewCount is a stale aggregate conflicting with the real YouTube count already shown. (audit #2 L-9) Adversarially reviewed (Opus): clear-resurrection closed, no defer-loop, FFI slim has no readers. Headless compileDebugKotlin green.		2026-06-22 05:10:48 -07:00
..
strawcore	vc=90: cold-start store hydration off-Main + video-page status-bar fix + RYD FFI slim	2026-06-22 05:10:48 -07:00
Cargo.lock	vc=85: image caching + SB/RYD clients -> Rust + crash/autoplay fixes	2026-06-21 12:59:04 -07:00
Cargo.toml	Public-flip audit: scrub audit-ticket prefixes + LAN refs + tighten README	2026-05-27 13:29:53 -07:00
README.md	Public-flip audit: scrub audit-ticket prefixes + LAN refs + tighten README	2026-05-27 13:29:53 -07:00

README.md

`rust/` — strawcore: Rust YouTube core for Straw

Phase U- of the Straw build. Goal: replace the Java NewPipeExtractor dependency with a Rust core (rustypipe + tokio + reqwest), exposed to the Kotlin/Compose UI via UniFFI. Compose UI stays in Kotlin — only the YouTube/Innertube fetching layer moves to Rust.

Phases

Phase	What
U-1	Toolchain + UniFFI smoke test (`hello_from_rust`) round-tripping through JNA. No real APIs yet.
U-2	rustypipe search. `SearchViewModel` calls the Rust core.
U-3	rustypipe streamInfo + streams. `VideoDetailViewModel` + `PlayerViewModel` use it.
U-4	rustypipe channel + tabs. `ChannelViewModel` + `SubscriptionFeedViewModel`.
U-5	Rip NewPipeExtractor Java dep. Measure APK + cold-fetch latency before/after.
U-6 (stretch)	SponsorBlock + RYD HTTP through reqwest + tokio in the same lib.

Build chain

Build container (Sulkta uses one; any toolchain matching this layout works)
├── rustup stable (target add: aarch64-linux-android, armv7-linux-androideabi,
│                  x86_64-linux-android, i686-linux-android)
├── cargo-ndk      (cross-compile helper)
├── android-sdk    (ANDROID_HOME, sdkmanager, build-tools, platforms)
└── android-ndk    (ANDROID_NDK_HOME, r27c LTS)

Gradle (strawApp/build.gradle.kts)
├── cargoBuild         Exec task → cargo ndk -t <abi>... -o jniLibs/ build --release
├── uniffiBindgen      Exec task → cargo run --bin uniffi-bindgen ... --library libstrawcore.so
└── source-set wiring  generated Kotlin lands in strawApp/src/main/java/uniffi/strawcore/

Runtime (StrawApp.onCreate)
├── System.loadLibrary("strawcore")
└── uniffi.strawcore.initLogging()

Why UniFFI (and not raw JNI / JNA bindings)

Hand-written JNI: tedious, error-prone, every type change is two files (Kotlin + Rust) that must stay in sync.
Raw JNA: better, but you still hand-write the Kotlin side and worry about string ownership.
UniFFI: write Rust, annotate with #[uniffi::export], get a Kotlin shim generated. Strings, structs, enums, Result types, async functions all cross the boundary transparently. The runtime is JNA under the hood.

When in doubt

cargo check -p strawcore --target aarch64-linux-android — fast iteration.
cargo run --bin uniffi-bindgen -- generate ... — regenerate Kotlin bindings.
adb logcat -s strawcore — Rust log::info!() lands here.
aapt dump badging strawApp/build/outputs/apk/debug/strawApp-debug.apk — inspect what ABIs/native-libs the APK carries.