AskaEth
6ce825db8d
CI test (ubuntu-latest) 自 M43 起红的根因不是「组杀打到自身进程组」， 而是 procps-ng 的 kill 把裸 `-<pgid>` 当成又一个信号选项吞掉：退出码 0、 什么都没发。旧实现据此提前 return，单 pid 兜底永远不执行，于是 process_smoke::stop_kills_process_tree 与 pipeline_cases::pipeline_stop_records_killed_exit 只能干等 graceful+5s 预算后报「强制结束后进程仍在运行」。 - process.rs：Unix 分支用 CommandExt::process_group(0)（std 1.64+ 安全 API，无需 pre_exec/unsafe）让子进程自成一个进程组，与 Windows 的 CREATE_NEW_PROCESS_GROUP 对称；这也让「树」回收真正覆盖后代。 - tree_kill.rs：组杀改用 `kill -TERM -- -<pgid>`（`--` 不可省），并且 先过 group_kill_target 三重验证——目标必须是自己的进程组组长、必须 读得到我们自己的组、目标组不能就是我们所在的组；单 pid 兜底改为 「永远执行」，kill 缺失（NotFound）返回明确错误而不是静默失败。 pid==0 守卫从 kill_tree 提到 terminate/force_kill 共用入口。 - 测试钉子（Linux 门住）：spawn 后子进程 pgid == 自己的 pid 且 != 测试进程 pgid；组杀只接受验证过的独立组；组杀覆盖孙进程且不碰我们 自己的组；同组子进程靠单 pid 兜底仍能被干掉；pid 0 一律拒绝。 验证：rust:1-bookworm 容器（ull-linux-target 热缓存）cargo fmt --check、 cargo clippy --workspace --all-targets -D warnings、cargo test -p unlucky-core --test launch（82 passed，两条原红灯转绿）、cargo test --workspace --all-targets --no-fail-fast 不再被 SIGTERM 打断；Windows 本机 fmt/clippy/cargo test -p unlucky-core 全绿。
Unlucky Launcher (ULL)
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Official project home: https://github.com/AskaEth/Unlucky-Launcher
Unlucky Launcher (ULL) is a free, open-source Minecraft: Java Edition launcher written in Rust (Apache-2.0, non-commercial), with a Slint + Metro UI. It embeds an AI agent client (chat / configuration / crash diagnosis) and integrates with the broader agent tooling ecosystem via MCP. Minimum baseline: Windows 10.
- Runtime: a single native Rust binary — no JVM, no WebView, no external runtime
- UI: Slint (Royalty-Free 2.0; GL preferred, CPU software-rendering fallback so older machines without a usable GPU still get the full UI)
- License: Apache-2.0 © AskaEth (YeiJ)
Compliance statement
Authentication uses only official Microsoft/Mojang endpoints — Microsoft OAuth 2.0 device code flow, Xbox Live, XSTS, and api.minecraftservices.com — so players sign in with their own Microsoft account and launch the game they already own. Account tokens are stored only on the user's local machine and are never sent to any server operated by the project. ULL does not distribute, mirror, proxy or modify any Minecraft game files. Online play always requires a Microsoft account with valid entitlements. Local offline profiles never contact Microsoft or Mojang services and cannot join online-mode servers. Not affiliated with Mojang or Microsoft.
Status
The core engine is complete (workspace: 983+ tests passing):
- Microsoft sign-in: OAuth 2.0 device code flow → Xbox Live → XSTS → Minecraft Services, with entitlement verification
- Account credentials are stored only on the local machine — never uploaded, and inaccessible to the AI features
- Mod loaders: Forge / NeoForge / Fabric / Quilt, verified on real machines
- Java management: Temurin / Oracle / Microsoft / Zulu with a regional fallback chain
- Multi-source download engine; YAML rule-based crash diagnosis
- Usable as an MCP server for external agent tooling (
ull agent serve) - Local offline profiles: for local / isolated-network testing only; they perform no Microsoft authentication and cannot join servers with online-mode enabled
CLI (ull) is fully usable: install / launch / accounts / java / diagnose / agent.
GUI in development: crates/app is currently a Slint + Metro skeleton; the theme system and
the full interface ship with subsequent versions — use the CLI until then.
Module map
Unlucky-Launcher (cargo workspace)
├── crates/core # domain library, zero UI dependencies, eight modules
├── crates/agent # AI agent: ToolSpec registry + built-in client + MCP server (one shared core)
├── crates/app # Slint UI: the only crate allowed to depend on a UI framework
├── crates/cli # CLI (bin `ull`): headless, zero UI, depends on core + agent
└── packaging # single-file artifact matrix and packaging assets (planned)
The eight modules of crates/core:
| Module | Responsibility |
|---|---|
setting |
three data-directory modes, schema-based config, atomic writes, migrations |
download |
multi-source health scoring, mirrors, chunked downloads, hash-while-downloading |
game |
version / instance repository, snapshots and inheritance resolution |
launch |
10-stage launch pipeline, processes, JSONL event stream |
auth |
Microsoft sign-in / local offline profiles |
addon |
mod loader installation, modpacks, CurseForge / Modrinth |
diagnose |
five signal collectors, YAML rule engine, hs_err parsing |
platform |
OS abstraction: paths, processes, file locks, capability probing, runtime OS detection |
Building
Prerequisites:
- Rust stable (
rust-toolchain.tomlselects the toolchain automatically; componentsrustfmt/clippy) - Windows: MSVC toolchain (used by CI) or MinGW-w64 (
x86_64-pc-windows-gnu) - Linux:
libxkbcommon-dev libfontconfig1-dev libgl1-mesa-dev libegl1-mesa-dev libwayland-dev libxcb1-dev(Slint winit backend + femtovg build dependencies)
cargo fmt --all --check # formatting
cargo clippy --workspace --all-targets -- -D warnings # lints (zero-warning gate)
cargo test --workspace # tests
cargo build --release # artifact: target/release/unlucky-launcher[.exe]
Software-rendering switch (machines without a usable GPU / with broken drivers):
unlucky-launcher --software-renderer (equivalent to SLINT_BACKEND=winit-software).
Dependency license check (optional locally, required in CI):
cargo deny check licenses bans sources.
CI gates
| Workflow | Content |
|---|---|
.github/workflows/ci.yml |
fmt + clippy + test + build, Windows / Linux matrix |
.github/workflows/guards.yml |
zero-UI guard for core, 400-line-per-file guard, cargo-deny license guard |
Platform baseline
Minimum baseline: Windows 10. Windows 8.1 / 8 / 7 are not supported:
- Windows 10/11 builds use the standard toolchain (MSVC / GNU) — no custom target specs, no
-Zbuild-std, no import-table allowlists - Other platforms: macOS 12+ first class; Linux x64 with X11 preferred, Wayland as the long-term direction; Android Termux experimental, not committed
- UI fallback: Slint software rendering (fully usable on machines without a GPU or with broken drivers)
- Platform independence is expressed through separate test matrices, not separate artifact pipelines; capability differences use feature gates with runtime probing
License and acknowledgements
- This project: Apache License 2.0, see LICENSE; third-party notices in NOTICE
- The GUI uses Slint (Royalty-Free 2.0 track). Per the RF 2.0 obligations an
AboutSlintwidget will be placed on the about page (P2); until then NOTICE and this section serve the attribution duty.
Thanks to HMCL and PCL2 (both GPL-3.0) — these two launchers have accompanied the vast majority of Minecraft players for many years. ULL learned a great deal about design and implementation from them, and this project is dedicated to those two pioneers.