redbear-power v1.44: bottom borrow — braille graphs, themes, kill dialog, stability fixes
Borrowed from bottom v0.11.2 comparison assessment (17 implementation passes):
New modules:
- src/graph.rs: BrailleGraph widget (Canvas + Marker::Braille) for
time-series rendering; RingHistory buffer with display_max() for
stable y-axis scaling (nice rounding: 1,2,5,10,20,50,100...)
- src/kill.rs: process kill dialog with signal selection,
Cell<usize> interior mutability pattern, 2s auto-close timer
- src/event.rs: typed Event enum (Key, Mouse, Tick, Resize, Terminate)
New features:
- Braille graphs: 5 widgets across 4 tabs (CPU%, Temp°C, PkgW,
Net KiB/s, Disk KiB/s) with y-axis labels and reserved margin
- Theme system: dark/light/high-contrast presets, --theme CLI flag
with validation, wired into panel_border(), BrailleGraph,
header governor, cursor highlight
- Widget expansion (e key): full-screen tab toggle with hint bar
- Data freeze (f key): pause data updates with [FROZEN] indicator
- Process kill dialog (k key): SIGTERM/SIGKILL/SIGINT/SIGHUP
- --once mode: now renders 3 braille graphs + all text panels
- Double-refresh at startup for ≥2 graph data points
- Startup diagnostic to stderr (cores, governor, MSR, DMI name)
Stability fixes:
- MSR per-CPU failure cache (Mutex<Vec<bool>>) — avoids repeated
doomed /dev/cpu/*/msr opens; auto-clears every ~30s (60 refreshes)
- skip_refresh guard: if refresh >200ms, skip next cycle to
prevent refresh pile-up on slow MSR reads
- collector.rs: removed Barrier — threads start work immediately
instead of waiting for all threads to spawn
- panic hook: restores terminal on panic
- IsTerminal check: clear error message before entering raw mode
Bug fixes:
- 4 key shadowing bugs found and fixed:
'g' (governor vs. move-to-top) — removed unreachable arm
'T' (tab-cycle vs. tree-toggle) — changed tree to 'y'
'f' (freeze vs. process-filter) — changed filter to 'F'
- Key::Esc ordering: kill dialog → PID detail → quit
- process panel header updated ('y' for tree, 'F' for filter)
Build:
- Cargo.toml: [profile.release] lto=true, opt-level=3, codegen-units=1
→ 4.1 MB binary (was 6.1 MB, -33%)
- libc 0.2 dep for Linux kill() in kill dialog
- cargo fmt applied project-wide
Tests: 217 passed (was 198, +19 new)
- graph: 5 tests (RingHistory, display_max, 3 render smoke tests)
- kill: 6 tests (dialog lifecycle, selection wrap, auto-close, render)
- app: 8 integration tests (CPU detection, graph population, governor,
temp source, expand toggle, freeze, skip-refresh)
Docs:
- local/docs/RATATUI-APP-PATTERNS.md updated to v1.44+ status:
§13.14 current feature table, §15 braille graph pattern,
§16 modal dialog pattern, §17 key audit pattern,
§14 line counts updated (13,091 LoC, 27 modules, 217 tests),
summary expanded to 13 rules
vasilito
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