sd_bench dir-entry scaling: stat-miss is ~0.1 ms/entry and the
loose-object composite hits p50 402.9 ms at 256 siblings, reproducing
the field ~360-400 ms/loose-write from primitives. The objects/
fan-out is ~256 dirs, so every path resolution under it pays the scan.
Bounded and accepted; levers (fewer resolutions, pack-not-loose) go to
a future perf pass.
Pulled shape passed on device: apply_tree_diff 1271ms for 1 file, no
crash, interning confirmed (0 KB internal on re-walk). Records run-3
timings, the reconcile 30s→5s session-resumption win, and the
1-byte-load/0-byte-save trailing-newline watch item.
Supersedes the plain case-insensitive matcher from earlier today (user
decision): an all-lowercase pattern searches case-insensitively, one
capital makes it exact (vim smartcase), and diacritics always fold both
ways — /ete finds été, /été finds ete. fold() strips the Latin-1
accent set (ligatures œ/æ excluded: they fold to two chars); n/N
recompute the smartcase verdict from the remembered pattern so repeats
behave like the original search.
sd_bench grows a directory-entry-scaling section (stat hit/miss and
the loose-object composite at 8/64/256 siblings): FAT resolves every
path component by linear scan, so cost climbing with N convicts
directory scans as the ~360ms residual; flat cost exonerates them.
stage_and_commit brackets the splice with the p_mmap counters and logs
'N mmaps / M KB read' per commit, splitting the residual into pack-read
I/O vs everything else on the next real :sync.
The git channel now carries GitRequest::{Publish,Pull} with a shared
ensure_online preamble (Wi-Fi/clock/TLS once per session). pull_once
fetches origin — refreshing the tracking ref so the radio-free
up-to-date check stays honest — and maps four shapes: up to date,
LocalAhead (stranded commit, :sync's job), clean fast-forward,
Diverged (refused; no merge on the device). The fast-forward is a SAFE
checkout then ref move: it refuses to overwrite content that differs
from HEAD, the belt under the UI gate that refuses :gl while the dirty
journal is non-empty. A RAM-dirty buffer doesn't gate — its edits win
(last-writer-wins, like the reconcile).
After a pull the UI drops clean parked buffers, re-reads the clean
active buffer in place (Editor::refresh_active), and re-walks the
palette list. Firmware 0.6.0 -> 0.7.0. On-device verification pending.
Literal case-sensitive substring search sharing the : command line's
editing (cmd_prompt discriminates the prompt; Enter dispatches). Jumps
on Enter only — incremental caret-chasing loses to the e-ink refresh
cost, same call as the snippet no-popup decision. Wraps with a notice,
keeps the caret on a miss, bare / repeats the editor-global last
pattern. n/N live in move_by so counts and Visual extension come free;
they are not operator targets.
Kaizen/postmortem next-steps kept accumulating with no owner. Each item
now lives in one version doc (v0.7 sync perf, v0.9 robustness, v1.0
boot) with the source docs linking there; the editor-freeze safety net
is marked hardware-verified and the v0.5 walk re-measure closed at 4.3s.
Move each version's scope checklist and status out of the monolithic
macroplan into a dedicated docs/vX.Y-<slug>.md page; macroplan keeps the
source block, the rollup status, and a one-line summary + link per
version. v0.1 reuses its existing product/technical pages.
Also drop the "Optional column ruler at 80" requirement from v0.6.
