feat: add optional LACT Waybar module, fully independent of gpuinfo - #2096
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feat: add optional LACT Waybar module, fully independent of gpuinfo#2096Delcado19 wants to merge 5 commits into
Delcado19 wants to merge 5 commits into
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Per kRHYME7's request on HyDE-Project#2086/HyDE-Project#2088: keep gpuinfo.sh completely untouched and add LACT as its own script/module instead, so the existing, trusted GPU widget and the new, unproven LACT integration can be tested side by side. Built fresh from dev (not on top of the never-merged gpuinfo.lua rewrite) so this diff carries none of that history. - lact.lua: standalone Waybar CLI, no require("gpuinfo") -- a file named gpuinfo.lua would make hyde-shell run it instead of gpuinfo.sh for every existing custom/gpuinfo* module (Lua is resolved before shell there). Reports every GPU LACT detects at once rather than toggling between vendors (LACT's whole point is one cross-vendor view; toggling only ever existed because nvidia-smi/amdgpu.py/sensors could each see one vendor). Each GPU's temperature gets its own inline Pango color (same mechanism already used by sensorsinfo.py/mediaplayer.py), computed against a GPU-realistic scale instead of the CPU thermal scale copy-pasted into gpuinfo.css originally. Marked with a fixed test-phase indicator (bar icon + tooltip label) so it's never mistaken for the real gpuinfo widget while both run side by side. Own --emoji preference, own tiny state file. - lact_gpuinfo.py: talks to lactd over /run/lactd.sock, stdlib only. Every device/vendor/temperature/clock field is defensively typed -- a missing daemon, a malformed response, or one broken device among several all degrade to fewer/emptier fields instead of raising, so a bad reading never takes the whole poll down. - install.sh: --lact flag (or an interactive prompt otherwise), skips asking again if lact/lactd is already present, installs the pacman package, and enables lactd in the services step. Detecting an already-installed LACT never forces sudo auth or drags in the services operation on a run that didn't ask for either -- only an explicit --lact (or "y" at the prompt) does that; auto-detection only keeps lactd in sync when services was going to run anyway (caught by test_install_env/ test_install_restore failing on a machine that already had lactd installed from earlier manual testing). - tests/lua/lact_spec.lua + tests/test_lact_wrapper.sh: unit coverage for the formatting/parsing logic in isolation (malformed JSON, missing "devices" key, non-table entries mixed into an otherwise valid device list, negative/absurd/non-numeric temperatures, multiple GPUs each keeping their own color) plus an end-to-end cli_main/--emoji/--reset check against a fake lact_output, isolated from the real machine. Not wired into any default Waybar layout, same as the existing custom/gpuinfo#amd/#intel/#nvidia variants -- opt-in like them. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PVh5zG1CFKwHTyzrimjKRG
Live-tested on this machine's real GPU/lactd. Found while doing so:
- The temperature/clock-speed icons rendered as bare spaces -- literal Nerd
Font Private Use Area characters typed into lact.lua's source came out
blank (regular BMP Unicode like the ☁/❄ glyphs and characters restored
via a byte-level script edit earlier survived fine; only the ones typed
directly as raw characters in this file didn't). Replaced every icon in
this file with \u{...} escapes instead of typed glyphs, verified against
Configs/.local/share/hyde/glyph.db's codepoints and confirmed rendering
by decoding the actual JSON output. Temperature/clock-speed also switched
from gpuinfo's temperature-mood-varying icon (fire/volcano/cloud/snowflake)
to one fixed icon each -- the color already carries "how hot", the icon
only needs to say "this is a temperature/clock reading".
- lact_gpuinfo.py never extracted fan speed at all. Checked the real LACT
daemon's device_stats response directly over the socket: it reports
stats.fan.speed_current, so this was a straightforward omission, not a
LACT limitation. Added, shown whenever the daemon reports a fan sensor at
all (0 RPM is a real "fan is off" answer on some cards, not a missing
value -- so it's gated on presence, not truthiness).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PVh5zG1CFKwHTyzrimjKRG
dev moved tests/ to a git submodule (HyDE-Project/tests) while this branch sat unopened, so plain files under this path conflict with the gitlink on merge. Dropping the new test files here; the LACT module code stands on its own. Coverage moves to HyDE-Project/tests. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01X1SjbyvkBXwHm4ZprDQc93
This was referenced Sep 13, 2026
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Included review availability: Your plan provides up to 8 included reviews per hour; 4 remain after this review. 📝 WalkthroughWalkthroughAdds an optional ChangesLACT GPU monitoring
Priority: ⬇️ Low Estimated code review effort: 4 (Complex) | ~45 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant Waybar
participant lact.lua
participant lact_gpuinfo.py
participant lactd
Waybar->>lact.lua: Poll custom/lact
lact.lua->>lact_gpuinfo.py: Execute metric collector
lact_gpuinfo.py->>lactd: Query device list and metrics
lactd-->>lact_gpuinfo.py: Return GPU data
lact_gpuinfo.py-->>lact.lua: Return normalized JSON
lact.lua-->>Waybar: Display GPU status
Merge Risk: ⚪ Minimal · up to The optional LACT module’s installation and runtime integration are consistent with the daemon’s documented service and socket model. No merge-blocking issue was identified. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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Inline comments:
In `@Configs/.local/lib/hyde/lact.lua`:
- Around line 104-106: Update M.generate_json to Pango-escape all daemon-derived
GPU labels and value_or_na metric values before inserting them into tooltip
text. Escape ampersands and markup-sensitive characters so entities render
literally, while leaving the generated span elements unchanged. Do not modify
M.format_temperature’s nonnumeric branch.
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CHANGELOG.mdConfigs/.local/lib/hyde/lact.luaConfigs/.local/lib/hyde/lact_gpuinfo.pyConfigs/.local/share/waybar/modules/custom-lact.jsoncScripts/install.sh
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custom/lact.jsonc doesn't set "escape": true, so Waybar renders this module's tooltip/text as Pango markup -- and every daemon-supplied value (GPU vendor, family, name; utilization, clock, power, fan readings) was concatenated into it via value_or_na()/gpu_label without any escaping. A raw '<', '>', or '&' in any of those -- plausible for vendor/product name strings -- would corrupt the markup instead of rendering literally. format_temperature()'s non-numeric fallback (also flagged) is not reachable through generate_json(), which already converts to a number before calling it -- left as-is per the review, not a live path. Flagged by CodeRabbit on PR HyDE-Project#2096. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01X1SjbyvkBXwHm4ZprDQc93
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Covers HyDE-Project/HyDE#2096's fix for a real gap CodeRabbit found: generate_json() concatenated vendor/family/primary_gpu strings straight into the tooltip, which Waybar renders as Pango markup (custom/lact.jsonc doesn't set "escape": true). A raw '<', '>' or '&' in any of those would corrupt the markup instead of rendering literally. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01X1SjbyvkBXwHm4ZprDQc93
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Summary
Supersedes #2086 with a fresh implementation from plain
dev(nogpuinfo.lua, per review on #2086:gpuinfo.shstays completely untouched so the existing/trusted behavior and this new, unproven LACT integration can be compared independently).custom/lactWaybar module — experimental cross-vendor GPU monitoring via the LACT daemon socket, shown separately from (and independent of) the existinggpuinfomodule.lact.lua/lact_gpuinfo.pydo not depend on or modifygpuinfo.sh/gpuinfo.luain any way — no shared file, norequire("gpuinfo")(which would also risk shadowinggpuinfo.shviahyde-shell's.lua-before-.shresolution).--emojiflag for Nerd Font glyphs vs. real emoji, matchinggpuinfo.lua's existing convention.custom/gpuinfo: a fixed icon/text prefix and "LACT (Testphase)" tooltip line, removable once LACT is no longer considered experimental.install.sh --lact(or an interactive prompt during a normal install) installs and enableslact/lactd; warns that enablinglactdmay prevent a secondary/idle GPU from entering PCI runtime-suspend on hybrid-graphics (Optimus/PRIME) laptops, citing LACT#1057.Test plan
tests/here, beforetests/became a submodule)bash -n Scripts/install.shpasseslactdSummary by CodeRabbit
custom/lactWaybar module for cross-vendor GPU monitoring through LACT../install.sh --lactsupport to install LACT and enable its monitoring service.