vasilito bade5b81f7 cub: TUI rewrite + AUR hardening + god-module split (v6.0 2026)
TUI rewrite (the visible half of the change):

- 8 views instead of 6: Home, Search, Info, Install, Build,
  Query, Remove, Updates — central VIEW_ORDER const in
  tui/views/mod.rs and cycle_view() / parent_view() helpers
  mean adding a 9th view is one line.
- Help overlay is now view-scoped: shows a Global section and
  an In this view section that only lists keybindings the
  current view actually honors.
- Esc goes back one view (parent_view map); q still quits.
- New ConfirmAction enum and full-screen confirm_banner
  widget: pressing i / b / r / U now sets pending_confirm
  and shows a banner; y confirms, n cancels.
- TUI build routed through the canonical fetch_aur_to_store
  + validate_git_target instead of an inline git clone. The
  6 swallowed errors are now surfaced in build_log and
  status_message.
- panic-catching wrapper around spawn_action so a panic in
  the worker thread becomes a visible ActionUpdate instead
  of a frozen spinner.
- TUI cancel architecture: Arc<Mutex<Option<Child>>> shared
  between parent and worker drainer, Arc<AtomicBool> cancel
  flag, c keypress in Install/Build views calls child.kill().
- Terminal too-small guard: < 14 rows or < 40 cols renders
  a Terminal too small overlay instead of broken layout.
- Sticky error coloring in the status bar: success uses
  theme.success, failure uses theme.error, neutral uses
  status_style.
- PgUp / PgDn global scroll bindings for Install/Build log
  views; scroll position tracked in install_log_scroll /
  build_log_scroll u16 fields; install_log_joined /
  build_log_joined pre-joined strings avoid repeated
  Vec<String>::join calls during render.
- CubApp::new() returns Result<Self, CubError>; HOME missing
  or store.init() failure is now a fatal error overlay
  instead of a silent /tmp/.cub fallback.

AUR hardening:

- AUR client (reqwest::blocking::Client) gets 5s connect +
  15s request timeouts.
- fetch_aur_to_store writes the recipe atomically: stage in
  store.tmp_dir()/recipe-staging-<name>-<nanos>, then
  fs::rename. TmpGuard drop cleans up the clone directory.
- validate_git_target rejects names with .., ://, leading -,
  empty, or NUL bytes (was previously only catching leading -).
- redox-pkg dependency pinned to rev
  52f7930f8e6dfbe85efd115b3848ea802e1a56f0 to match the
  resolved Cargo.lock.

God-module split (main.rs 2063 -> 1723 lines):

- constants.rs: 10 path / URL constants.
- bur_helpers.rs: search_cached_bur, ensure_bur_package_dir,
  sync_bur_repo, default_bur_repo_url, bur_repo_dir,
  aur_repo_url, BurMatch struct.
- fs_helpers.rs: find_stage_dir, directory_has_entries,
  copy_dir_recursive, remove_dir_if_exists,
  current_unix_timestamp, join_strings, join_package_names,
  empty_if_blank, yes_no.
- paths.rs: cub_temp_dir, validate_git_target.

Tests:

- 19 unit tests in main-side modules (was 5); 121 in the
  lib (unchanged). Total 140/140 pass.
- New CubError variant tests, validate_git_target
  happy-path + 4 attack vectors, cub_temp_dir unique-name
  under concurrent calls, bur_repo_dir / aur_repo_url
  composition, fs_helpers round-trips with tempfile
  scratch dirs.

Policy:

- local/AGENTS.md gains a TUI CONVENTION section: single
  binary, -i flag, no separate -tui crate, ratatui 0.30
  + termion 4.0.6, anti-pattern list. cub, redbear-info,
  and redbear-netctl-console are listed as already
  compliant.
- cubl (the cub lib-only consumer) recipe path updated
  from -p cub-cli to -p cub.

Verified: cargo build --workspace and --no-default-features
and --features full and --features tui all clean; cargo
test --workspace 140/140 pass; cub --version cub 0.2.3;
cub --help 21 subcommands.
2026-06-11 09:16:48 +03:00

Red Bear OS

Red Bear OS

A microkernel operating system written in Rust, derived from Redox OS

MIT x86_64 Status


What is Red Bear OS?

Red Bear OS is a general-purpose, Unix-like operating system with a microkernel architecture, written in Rust. It is a full fork of Redox OS, with added hardware support, filesystem drivers, and a KDE Plasma desktop path. The current development branch is 0.2.3 and the current Red Bear OS version is 0.2.3 (same as the branch name).

Goals:

  • AMD & Intel parity — first-class support for both platforms on bare metal
  • KDE Plasma desktop — Wayland-based desktop environment via the KWin compositor
  • Hardware GPU acceleration — AMD GPU (amdgpu) and Intel GPU drivers via redox-drm
  • Modern subsystems — USB, WiFi, Bluetooth, ext4, GRUB, D-Bus
  • Offline-first builds — reproducible from archived, BLAKE3-verified sources

Quick Start

Prerequisites

Linux x86_64 host with Rust nightly, QEMU, nasm, and standard build tools.
See the Redox Build Guide for full setup.

Build & Run

# Clone
git clone https://gitea.redbearos.org/vasilito/RedBear-OS.git
cd RedBear-OS

# Build and run the desktop target in QEMU
./scripts/run.sh --build

# Build a live ISO for bare metal
./scripts/build-iso.sh redbear-full

# Build the text-only recovery target
./scripts/run.sh --build --config redbear-mini

Repository Hosting

The canonical Red Bear OS Git server is Gitea at https://gitea.redbearos.org/vasilito/RedBear-OS.git. GitHub is not a Red Bear OS source of truth and must not be used for pushes, issues, releases, or project coordination.

Public Scripts

Script Purpose
scripts/run.sh Build and run in QEMU (-b to build, -c <config> for target)
scripts/build-iso.sh Build a live ISO for bare-metal boot
scripts/build-all-isos.sh Build all live ISO targets
scripts/network-boot.sh PXE network boot helper
scripts/dual-boot.sh Dual-boot installation helper

Config Targets

Target Type Description
redbear-full Desktop Wayland + KDE + GPU drivers + D-Bus services
redbear-mini Console Text-only recovery / install target
redbear-grub Console Text-only with GRUB boot manager

Current Status

Red Bear OS boots to a login prompt in QEMU with working wired networking, D-Bus system bus, hardware detection daemons, and filesystem support (RedoxFS, ext4, FAT).

Area Status
Boot (ACPI/x2APIC/SMP) Bare-metal proven
Userspace drivers (PCI, storage, net) Working in QEMU
D-Bus system bus + services Working (login1, PolicyKit, UDisks, UPower)
ext4 / FAT filesystems Compiles, installer-wired
POSIX gaps (relibc) 🚧 Bounded Wayland-facing support
DRM/KMS display drivers 🚧 AMD + Intel compile; HW validation pending
Wayland compositor 🚧 Bounded proof; Qt6/KF6 clients crash at init
KDE Plasma desktop 🔄 In progress (Qt6/KF6 compile; KWin/QML blocked)
WiFi / Bluetooth 📋 Planned (architected, implementation pending)

How It Works

Red Bear OS uses a userspace driver model — all drivers run as unprivileged daemons:

Kernel (microkernel)
  └── schemes: memory, irq, event, pipe, debug
        └── Driver daemons (userspace)
              ├── pcid        → PCI enumeration
              ├── e1000d      → Intel ethernet
              ├── xhcid       → USB controller
              └── vesad       → Display framebuffer

The kernel provides minimal services (memory, interrupts, IPC). Everything else — filesystems, networking, graphics, input — runs in userspace.

Documentation

Contributing

Red Bear OS uses a full fork model. Upstream Redox sources are frozen and archived. All custom work lives in local/:

local/
├── sources/     # Red Bear source forks (git repos, directly editable)
├── recipes/     # Custom packages (drivers, GPU, system)
├── docs/        # Integration and planning docs
└── scripts/     # Build, test, and release tooling

We welcome contributions made with or without AI assistance — we care about quality, not how the code was produced.

License

MIT — same as upstream Redox OS.

S
Description
RedBear Operating System, based on RedoxOS. Licenced under MIT license.
https://redbearos.org
Readme MIT 20 GiB
Languages
C 43.9%
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Makefile 7.3%
Python 3.7%
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