Three interrelated bugs from the latest feedback round:
1. Console was idiotically small (fixed 5 rows). Reverted to the
originally-requested formula: max(5 rows, 15% of available vertical
space). The drift-back-to-huge problem is solved the right way in
fix#2, not by clamping size small.
2. Sidebar proportions drifted on every toggle (Call Stack ballooning,
Scopes/Watches shrinking to 1 row each after several in-and-outs).
Root cause found in dapui/windows/layout.lua: `update_sizes` writes
CURRENT window ratios back into `win_state.size` after each
operation, so the next open_wh uses those drifted ratios as its
target. Fix: call `dapui.open({ reset = true })`. The `reset` flag
tells dapui to ignore the drifted cached state and use `init_size`
(our original 0.25 per pane) on every open.
3. Status bar's bottom border rendered dark while everywhere else
showed a light-grey FloatBorder-style edge. Restored the bottom
separator row on the status bar, making it 3 rows again
(sep / content / sep). The legend bar stays 2 rows (content / sep)
because its top transition borrows from dapui's pane border below.
Symmetry across all 4 visible bar edges now.
Console double-output on multiple restarts still reported; that's a
separate in-place-terminal-clear issue still being investigated.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The "console fills the whole column" + "sidebar panes all fucked up on
re-entry" bug traces to three interacting problems:
1. I was creating bars BEFORE dapui.open, then using `wincmd K/J` to
force them to full width. That cascade recomputed every window
height. dapui windows without winfixheight absorbed freed space
unpredictably, and the drift accumulated on every toggle.
2. M.exit was closing our bars BEFORE dapui. When our bars closed,
their 4 rows were freed; dapui grabbed those rows into Console
and remembered the new size. Next open → Console ballooned.
3. Console height was coming out right on first entry but dapui's
internal size tracker was letting it grow back on re-open.
Fixes:
- Open bars AFTER dapui.open. `:topleft split` and `:botright split`
natively produce full-width horizontal splits above/below whatever
layout already exists — no wincmd K/J rearrangement needed.
- Close dapui BEFORE close_bars in M.exit so dapui doesn't see our
bars disappearing and grow to fill the void.
- New pin_dapui_sizes(): after dapui.open, iterate dapui panes and
set winfixheight = true on all of them. Console gets an explicit
set_height to config.opts.console_height (default 5) first. Panes
are now locked — wincmd/resize can't mess with them.
- Console height: fixed 5 rows (config.opts.console_height), no
more dynamic min(5, 15% of avail) which was producing unstable
values on re-entry.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Three refinements driven by the latest screenshot:
- TurboDebugBar highlight now links to Normal (was StatusLine). The
StatusLine bg is usually darker than Normal in most colorschemes,
which created a visible seam between our bar and the surrounding
dapui pane headers (which inherit Normal/WinBar bg). Linking to
Normal makes the bar blend so the overall UI reads as one unified
surface rather than two mismatched strips.
- Console height now `min(5, 15% of avail)` with a 3-row absolute
floor. Previously used `max(5, 15%)` which let Console balloon on
tall terminals — misread the user's "minimum of 15% OR 5 rows"
direction. Console is ancillary; caps at 5 to give the sidebar and
source the vertical space they deserve.
- Clear-on-restart actually works now. Previous attempt deleted the
entire console buffer on start/restart so dapui would create a fresh
one — this worked on `(c)` start (new terminal opens) but broke on
`(R)estart` because the adapter reuses the terminal channel, and
deleting the buffer orphaned the channel (Console went unresponsive).
New approach: KEEP the buffer, briefly toggle modifiable=true, and
call nvim_buf_set_lines with empty content to wipe the scrollback.
The PTY state and output stream stay intact; only the visible lines
are gone. Default `clear_console_on_start = true` again.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Regression fixes from the previous commit:
1. Debug adapter timing out / general slowness — root cause was calling
dapui.setup() on every M.enter() to "refresh layouts". setup is
heavy (tears down windows, re-registers listeners, rebuilds state)
and running it while the adapter handshake is in flight caused
"Debug adapter didn't respond" timeouts. Reverted to one-time setup;
layouts are computed once per nvim session. Trade-off: Console/
sidebar proportions may drift slightly if the terminal is resized
between toggles, but that's vastly preferable to a broken adapter.
2. Console broken / unreachable — clear_console was calling buf_set_lines
on a terminal buffer after dapui had made it a terminal, which leaves
the terminal in an inconsistent state. Kept the config option but
disabled by default (clear_console_on_start = false). Users who want
it can opt in; the feature remains risky on terminal-backed Console
buffers. Better design pending.
3. Bars not spanning full editor width — :topleft split and :botright
split create full-width splits only when no competing vertical
splits exist. dapui's sidebar creates a full-height vertical split
AFTER our bars, which squeezes the bars into the non-sidebar column.
Added force_bars_full_width() which runs `wincmd K` (on sbar) and
`wincmd J` (on cbar) AFTER dapui.open(). These commands re-layout
the window tree with the bar window spanning full editor width,
pushing sidebar + source + tray into the middle rows.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Cluster of UX refinements + one real bug:
Bar chrome:
- Shrunk both bars from 3 rows to 2 rows. dapui's own pane borders act
as the visual separation between the bar and the main content area,
so the inner-facing separator lines on each bar were redundant.
Top bar: sep / content (no bottom line)
Bottom bar: content / sep (no top line)
- Sidebar/Console sizing recalculated: 2-row bars instead of 3 frees
up 2 extra rows for content.
Smarter legend:
- (R)estart is now conditionally rendered — only shown when a dap
session is active. When there's no session, "restart" is meaningless
(there's nothing to restart), so the button hides and the remaining
controls re-center around the smaller set.
Console clear on start/restart:
- New config.opts.clear_console_on_start (default true). Fires on
dap.listeners.before.event_initialized — wipes the Console buffer
so output from a previous run doesn't linger when a new session
begins.
Registers default-collapsed:
- dapui's own scopes component auto-collapses any scope the adapter
marks `expensive = true` (see dapui/components/scopes.lua:22-24).
codelldb (Rust/C++) doesn't mark Registers expensive even though it
dumps hundreds of entries. We intercept the scopes response via
dap.listeners.before.scopes and inject `expensive = true` on any
scope name in config.opts.collapsed_scopes (default `{"Registers"}`).
Reuses dapui's existing collapse mechanism, so no monkey-patching.
Re-entry layout fix:
- The Console "balloon" bug on second ,dd toggle was dapui caching
first-call layout dimensions. ensure_dapui() now re-runs dapui.setup
with freshly computed layouts on EVERY M.enter, so the 25% / 25% /
25% / 25% sidebar split and 15%-of-available Console all recompute
against current terminal + current bar heights.
- Bars are now opened BEFORE dapui.open() so dapui's layout algorithm
sees the reduced available space from the start rather than computing
against full screen and then getting squished.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Critical fix — the top status bar was overlapping the first rows of the
source window and Call Stack pane. Root cause: both bars were floating
windows positioned at row 0 and just-above-statusline. dapui's layout
algorithm doesn't know about floats, so its windows extend into the
rows our floats were covering. Overlap = content hidden.
Fix: convert both bars from floating windows to real splits.
:topleft split → top status bar (3 rows, winfixheight)
:botright split → bottom control bar (3 rows, winfixheight)
Splits consume real layout space so dapui's panes lay out below/above
them naturally. No more overlap.
Also:
- Bars are now 3 rows each (sep / content / sep) for clear visual
separation from the main content area, per user design preference.
- IP gutter sign (👉) now placed via extmark with sign_text at
priority 500, overriding nvim-dap's DapStopped sign which was
losing the priority tie with the breakpoint sign on the paused line.
Both the gutter finger and the EOL-vtext finger now show.
- Sidebar width: max(25, min(40, columns/3)). Scales down on narrow
terminals, caps at 40 on wide ones so the source window stays the
star. Minimum 25 keeps the panes readable.
- Console (bottom tray) height: max(5, 15% of available vertical
space) — floors at 5 rows so very tall terminals don't blow it up
while small terminals still get a usable Console.
- Sidebar panes: equal 25% each (Stack / Scopes / Watches /
Breakpoints). User preference — lets Breakpoints be visibly taller
than the 5-row minimum Console so they read as distinct panes.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Layout overhaul per UX feedback — the 4-row bottom bar was too much and
mixing status info with action controls in one block felt crammed.
New chrome:
┌── row 0 ──────────────────────────────────────────────┐
│ turbo-debug dap.status msg DEBUG · STATE │ ← top bar
├───────────────────────────────────────────────────────┤
│ source code… │
│ (filename winbar now shows just %f, no DEBUG prefix) │
├── bottom tray (Console, 10 rows, full width) ─────────┤
├───────────────────────────────────────────────────────┤
│ (c)ontinue (s)tep (d)escend (r)eturn … ❓ help │ ← control bar
│ statusline (user's lualine untouched) │
│ cmdline │
└───────────────────────────────────────────────────────┘
- Top bar (2 rows, sbar_win): brand on left, dap.status() in middle,
colored state chip (DEBUG · READY/RUNNING/PAUSED) on right.
- Bottom bar (2 rows, cbar_win): controls centered, help right-anchored.
Down from 4 rows to 2 — no more crammed single-row layout.
- REPL pane removed from the bottom tray. Duplicates Console for most
workflows and the horizontal space is better spent on program output.
Users who want a REPL can hit E in debug mode to open it as a float.
- Console (bottom tray) now gets the full width and size 10 (was 8 in a
split).
- Source file winbar simplified to just " %f" — the DEBUG · STATE chip
has moved to the top bar where it belongs.
Total chrome cost: 2 (top) + 10 (tray) + 2 (bottom) + 1 (statusline) +
1 (cmdline) = 16 rows. Previous: 4 (bar) + 8 (tray) + 1 + 1 = 14.
Trade 2 extra chrome rows for vastly better layout clarity.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Layout restructure per UX feedback — the single-row-crammed layout
couldn't fit state + status + controls + help on narrow windows, and
byte-based truncation was clipping emoji at the right edge.
New shape:
┌────────────────── width ──────────────────┐
├ ─ ─ ─ ─ top separator ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ┤
│ 🐛 DEBUG · PAUSED · status… ❓ help │
│ 🟢 (c)ontinue … 🛑 (q) terminate│
├ ─ ─ ─ ─ bottom separator ─ ─ ─ ─ ─ ─ ─ ─ ─┤
└────────────────────────────────────────────┘
- Help has its own right-anchored slot on row 1 — it can never be
squeezed off by long status messages or wide control labels. Solves
the "no help visible on READY state" regression where dap's
"All threads stopped" message was pushing it past the byte-truncation.
- Controls get the full width of row 2 without fighting status text,
centered horizontally.
- If status message is too long for row 1, we truncate status first with
an ellipsis — help stays put.
Other fixes:
- TurboDebugBarKey no longer applies underline. The descender of
lowercase q crossed the underline and read as a lowercase g. Kept
bold; dropped underline.
- Help emoji switched back to ❓ (U+2753). It's BMP but has
Emoji_Presentation=Yes by default, so Ghostty renders it as color.
The previous "❓ invisible" symptom was caused by the broken-extmark
underline leak; fixed in the prior commit.
- Bottom tray shrunk 9 → 8 rows to preserve the 12-row total footprint
of the original dapui default (8 tray + 4 bar = 12).
Click zones now include a line number so we can dispatch correctly
between the state row (help click) and the controls row (control clicks).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Three fixes to bar rendering:
- The "terminate_____" trailing underscores were TurboDebugBarKey
(bold+underline) bleeding from a misaligned extmark. The old code set
the key-hint extmark starting at `right_byte_start + 1` — 1 byte INTO
the 4-byte help emoji — spanning 4 bytes across the emoji boundary.
When 💡 (U+1F4A1) didn't render as a glyph in the user's font, the
underline still rendered on those cells: producing visible underscores
in empty space. Drop the key-hint extmark on the help label entirely.
The emoji (if rendered) is already the visual; underline isn't needed.
- Restart icon ♻️ (U+267B + VS16) switched to 🔄 (U+1F504). VS16 forces
emoji presentation only when the font HAS an emoji glyph for that
codepoint — many don't, leaving text-mode rendering or blank. 🔄 is
supplementary-plane so it always renders as color emoji regardless.
- REPL pane title: dropped 💬 icon per user preference. Title is now
just " REPL" — the prompt format `dap>` is already a clear visual
differentiator, no need for a chrome icon.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Control bar refinements:
- All-emoji icons, supplementary plane only (plus ♻️ with VS16 per user
preference). Dropped Nerd Font Codicons — they rendered as unrelated
glyphs in the user's font (debug-start as a gear, step-into arrow
backwards, etc.). Replaced set:
🚀 start / 🟢 continue (dynamic), 👣 step over, 🔽 descend,
🔼 return, ♻️ restart, 🛑 quit/terminate, 💡 help.
- Modal label text — the tail after the (key) updates based on dap state:
no session: "(c) start" / "(q)uit"
active: "(c)ontinue" / "(q) terminate"
So the label always shows what pressing the key will actually do.
- Help icon switched from ❓ to 💡 — ❓ (U+2753) was rendering zero-width
in the user's font so the help label effectively disappeared. 💡 is
supplementary-plane and renders reliably.
Launch picker focus fix:
- run_in_source() now calls nvim_set_current_win instead of nvim_win_call.
nvim_win_call returns focus to the caller's window synchronously, so
when dap.continue() triggered an async vim.ui.select picker, the picker
opened but no window held focus — user had to click into it manually.
Shifting focus directly means the picker inherits source-window focus.
Bar buffer robustness:
- buftype=nofile + BufEnter autocmd that bounces focus back if anything
accidentally lands in the bar. Prevents E21 "Cannot make changes,
'modifiable' is off" that the user hit after a mouse drag landed focus
in the bar and their next keypress tried to edit.
dapui pane gutter cleanup:
- set_dapui_window_opts now forces number=false, relativenumber=false,
signcolumn=no, statuscolumn="", foldcolumn=0, and sets fillchars=eob:
to hide the `~` end-of-buffer marks. snacks statuscolumn was rendering
a gutter with line-number-like marks in dapui panes where they have no
semantic meaning.
Sidebar reorder from last commit stands: Call Stack → Scopes → Watches
→ Breakpoints.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Control bar — design overhaul per UX feedback:
- 3 zones: state chip (left), controls (centered), help (right). Each zone
gets a dynamic-width spacer between. As the window narrows, drop first
dap.status(), then controls (text collapses), then chip detail — help is
NEVER sacrificed per user priority.
- Control icons are all Nerd Font Codicons now ( ).
Mixed emoji + VS16-text combinations were rendering inconsistently in
the user's font (▶️⬇️ as text-mode glyphs while 🔴🐛 rendered as emoji).
Codicons all ship in the same Nerd Font range → uniform look.
- Help label drops the redundant "(?)" — the ❓ emoji is self-documenting.
Now reads "❓ help" instead of "❓ (?) help".
- Key letter (the s in (s)tep, etc.) gets bold + underline + Special's fg
via a derived highlight (nvim_set_hl can't combine link + bold attrs).
Re-applied on ColorScheme so theme swaps don't lose the styling.
Sidebar reorder — ergonomic over convention:
- New order: Call Stack, Scopes, Watches, Breakpoints (was Scopes first).
- When paused, the first question is "where am I?" → Call Stack first.
- Call Stack adjacent to Scopes means clicking a frame updates the Scopes
right below it — visual affordance for the Call-Stack-drives-Scopes
relationship. VS Code puts Scopes first; IntelliJ/Xcode put Frames
first. We side with the ergonomic argument over convention.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The symptom: pressing c in dapui_scopes/watches/stacks/breakpoints/console
printed "No configuration found for dapui_<pane>" because nvim-dap looks
up dap.configurations[vim.bo.filetype] from the current window — and in
dapui panes that filetype is dapui_* (no configs), not the source file's
filetype.
The modal key WAS firing; our smart_continue() ran but then ended up
calling dap.continue() from the dapui pane's context, which blew up on
config lookup.
Fix: wrap the launch in run_in_source() which finds a window whose
filetype isn't dapui_*/dap-repl/TurboDebugBar, then nvim_win_call()s
into that window so nvim-dap reads the real source filetype (rust,
python, go, etc.). Post-session dap.continue() resumes work as normal.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
UX refinement per design feedback:
- Bar is now 3 rows tall: ─ top separator, content row, ─ bottom separator.
The separator chars were invisible before because TurboDebugBarSeparator
linked to WinSeparator (muted in most themes). Switched to FloatBorder.
- Bottom tray default shrunk 12→9 rows so the 3-row bar doesn't overlap
REPL/Console. Net vertical footprint unchanged (12 tray = 9 tray + 3 bar).
- Action labels now teach the keyboard shortcut inline:
▶️ (c)ontinue ⏭️ (s)tep ⬇️ (d)escend ⬆️ (r)eturn
🔄 (R)estart 🛑 (q)uit ❓ (?)help
The (k) letter is highlighted with TurboDebugBarKey → Special so the
shortcut pops. The entire label is a click zone.
- help_on_enter default flipped true → false. The (?)help label in the bar
is always visible, so new users discover help via the bar instead of an
auto-popup on every debug-mode entry.
- No top bar added. The source file winbar already shows 🐛 DEBUG · <file>,
so a second chrome row would just duplicate context and eat screen space.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Addresses live-feedback issues that persisted after v3:
- Control bar now uses buffer content + extmarks instead of winbar —
winbar doesn't render in minimal-style floats, which is why the bar
was empty. Two rows: ─ separator on top, state chip + controls below.
Click dispatch via buffer-local <LeftMouse> keymap + cursor-column
lookup against a zones table.
- Bar auto-refreshes on every dap event (initialized/stopped/continued/
terminated/exited) so the READY/RUNNING/PAUSED chip and dap.status()
text stay live.
- Colorful emoji throughout for instant recognition:
Signs: 🔴 BP, 🟡 conditional, ⭕ rejected, 👉 stopped, 📝 logpoint
Titles: 🔎 Scopes, 👁️ Watches, 📚 Call Stack, 🔴 Breakpoints,
💻 Console, 💬 REPL
Badge: 🐛 DEBUG · <file>
Controls: ▶️⏭️⬇️⬆️🔄🛑❌
- Modal key install no longer skips buffers that already have entries —
every BufEnter/FileType force-reinstalls the keymaps so dapui's own
render pass can't leave them in a broken state.
- IP sign leak fixed: clear_ip() now unplaces lingering DapStopped signs
via sign_getplaced + sign_unplace, so restart no longer leaves a stale
👉 in the gutter of the previously-paused line.
- IP reason text (STEP/BREAKPOINT/EXCEPTION) now uses bold + reverse for
an inverted-color badge that really demands attention.
- dapui.expand_lines = false — this was spawning a cursor-pinned float
when a line was wider than its pane, causing the "hover text bleeds
across the screen" bug. With wrap+breakindent inside the pane, the
hover-float is redundant and destructive.
- Control-bar buffer is marked filetype=TurboDebugBar and explicitly
skipped by the modal key installer, so clicking a button doesn't
accidentally fire modal actions.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Major v3 fixes driven by live-debugging feedback:
- Control bar: replace vim.o.statusline override (lualine fights it) with
a 1-row floating window pinned above the statusline. Shows state chip
(READY/RUNNING/PAUSED) + seven clickable Codicon controls + dap.status().
Survives resize via VimResized autocmd. Fully independent of lualine.
- Console refresh: trailing-edge throttle at config.console_refresh_ms
(default 50ms = 20 Hz ceiling). Targets console windows via nvim_win_call
+ redraw! to avoid screen-cache miss. Chatty programs can't DOS the editor.
- Modal keys in dapui panes: install synchronously on FileType (drop inner
vim.schedule); all modal keys get nowait=true (was continue-only) so
single-key presses aren't swallowed by <leader>d* prefix matching.
- Wrap in dapui panes: wrap=true + breakindent + showbreak=" ↳ " so long
register values stay visible inside the pane without bleeding into the
source window. Safety valve at config.max_value_width (default 2000,
set 0 to disable) truncates only pathological multi-KB dumps with "…".
- Smart q: context-aware terminate. If a session is running, q calls
dap.terminate() and stays in debug mode (so user can read the console
postmortem). If no session, q exits debug mode. Removes quit_exits_mode.
- Icons: full Nerd Font Codicon set for signs, control bar buttons, pane
titles, and debug badge. 👈 emoji in the paused-line vtext pairs with
👉 in the gutter — fingers literally point at the paused line from both
sides.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Rename from tiny-debugger to turbo-debug — inspired by Turbo Pascal,
the first IDE with a real visual debugger. This thing isn't tiny,
it's turbo charged.
CHANGELOG for 0.1.0:
Features:
- Zero-config debugging — one line install, everything works
- Modal keybindings (c/s/d/r/q/x/X/D/W/K/E/R/?), active only
during debug mode, cleanly removed on exit
- Persistent breakpoints via persistent-breakpoints.nvim
- Inline virtual text — variable values in source code
- Hover (K), watch (W), REPL eval (E) from the code window
- Help splash (3s auto-dismiss) + manual help (?)
- Debug mode chrome — winbar indicator, cursor highlight
- dapui integration — controls toolbar, labeled panels
- which-key support — <leader>d debug group auto-registered
- quit_exits_mode option
Adapters (12 languages):
- Python (debugpy + venv detection)
- Rust (codelldb + cargo build + vim.ui.select picker)
- Go (delve), C/C++/Swift (codelldb)
- JavaScript/TypeScript (js-debug-adapter)
- C# (netcoredbg), Java, Kotlin, PHP, Ruby, Lua (osv)
Keybindings:
- <leader>dd — toggle debug mode
- <leader>dx / <leader>dX / <leader>dD — breakpoints (always)
- c s d r C x X D W K E q R ? — modal (debug mode only)
swaitsandClaude Opus 4.6