LuaBugViewer
A drop-in replacement for BugGrabber + BugSack
Addon Details
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Wrath of the Lich King Categories
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LuaBugViewer
A modern, modular Lua error catcher for WoW 3.3.5a. Captures errors as they happen and shows them in a clean viewer window, with full copy-paste support so you can paste a clean stack trace.
A drop-in replacement for BugGrabber + BugSack, with no Ace3 / LibStub / LibDataBroker dependencies.
Download
Download LuaBugViewer.zip - includes GP_Lib
What it does
- Captures every Lua error via a properly chained
seterrorhandler- Blizzard's default error popup (and anything else hooked in) still runs - Also captures
ADDON_ACTION_BLOCKEDandADDON_ACTION_FORBIDDENevents - Deduplicates repeats: identical errors show as a single row with an
xNcounter - Throttles runaway error loops: pauses capture for 60s after more than 20 errors/sec
- One-line yellow chat notification per new error (duplicates stay quiet)
- "Lua Errors" button on the ESC (Game) menu with an unread-count badge
- Two-pane viewer: error list on the left, full stack trace and locals on the right - both panes are selectable for Ctrl+C copy
Commands
| Command | Action |
|---|---|
/lbv (or /bug) | Toggle the viewer window |
/lbv clear | Wipe the current session's error log |
/lbv count | Print the number of captured errors |
/lbv chat | Toggle the chat-message notification |
/lbv testerror | Fire an intentional error to confirm capture works |
/lbv help | List the available subcommands |
How errors are stored
Errors live in memory for the current session only - they're not persisted to SavedVariables and /reload wipes the log. This keeps the SavedVariables file tiny and avoids the bloat that haunted long-running BugSack databases. Only your settings (chat-notification toggle, throttle limits, max stored count) persist across sessions in LuaBugViewerDB.
The log is capped at 100 errors by default; oldest entries drop off as new ones arrive.
Configuration
Settings live in the LuaBugViewerDB SavedVariable. Defaults:
| Key | Default | Meaning |
|---|---|---|
notifyInChat | true | Print a yellow [LBV] line on every new error |
throttleRate | 20 | Errors per second that triggers a capture pause |
throttleCooldown | 60 | Seconds capture stays paused after a burst |
maxStored | 100 | Hard cap on the session log; oldest are dropped |
Module layout
| File | Purpose |
|---|---|
Core.lua | Bootstrap, defaults, tiny pub/sub event bus |
modules/SessionLog.lua | In-memory error store with dedup |
modules/ErrorHandler.lua | seterrorhandler chain, recursion guard, throttle |
modules/Notifier.lua | Chat-frame notification on new errors |
modules/Viewer.lua | The two-pane viewer window |
modules/EscMenuEntry.lua | ESC-menu button + unread-count badge |
modules/SlashCommand.lua | /lbv and /bug handlers |
Installation
Extract the zip into Interface/AddOns/. Both LuaBugViewer/ and GP_Lib/ are inside - drop them both in. LuaBugViewer will not load without GP_Lib.
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