Index of /~zblaxell/tmp/raid56-wh-harness/scripts/lane

	Name	Last modified	Size	Description
	Parent Directory		-
	README.html	2026-09-17 14:40	3.0K

Checkout-free lane tooling (the kernel tree stays checked out on master zb64)

All of these work on refs only: temp GIT_INDEX_FILE plumbing, git merge-tree --write-tree 3-way replays with merge-base = each commit's parent, commit-tree, update-ref. Every script backs the refs it moves up under refs/backup/<TAG>/<lane>/... and prints a content oracle (tree identity or an md5 of the +/- content lines) -- read it before trusting a result.

• lanetopic.sh LANE ZB64 TOPIC NEWTIP TAG -- fast-forward one topic (NEWTIP must descend from the topic's tip), re-make the octopus LANE/testing, replay the zb64 linear tail.
• candtopic.sh LANE ZB64 TOPIC NEWTIP TAG -- lanetopic.sh that does NOT move the lane refs: publishes the re-made octopus and replayed tail under refs/cand/<TAG>/{topic,testing,zb64} so a candidate can be built and validated before promotion is a separate, deliberate step.
• lanerewrite.sh LANE ZB64 TAG TOPIC=NEWTIP ... -- same, for REWRITTEN topic tips (no fast-forward requirement); DRY=1 reports the oracle only.
• laneretag.sh LANE ZB64 [DRY=1] -- message-only rewrite of every topic chain + octopus + zb64 tail (used for the Assisted-by retag); trees must stay identical.
• lanefix.sh LANE ZB64 -- add topics/delalloc-fixes to a lane (2026-09-12 shape).
• chainv2.sh (+ chainv2-msg-*.txt) -- rebuild the ENOSPC chain on a new base with a drop/fold plan (PLAN map at the top); DRY=1 first.
• rebuildtopics618.sh (+ defrag-note.txt) -- the 2026-09-13 move of the defrag NO_FLUSH commit from topics/deadlock-fixes to the head of topics/stripe-alloc on 6.18.
• parkref-edits.json + parkref-msg.txt -- the parked-rbio refcount fix as a blobedit.py input pair (blobedit.py <ref> parkref-msg.txt parkref-edits.json). All six anchors match once on both 6.18 and misc-next, so the same pair applies to either lane -- appended on 6.18, folded into the park commit on misc-next (see ../../misc-next-one-pass-plan.md).
• enable-quiesce.py REF INDEXFILE -- anchor-based blob edits for the runtime-enable drain patch (example of editing a topic tip without a checkout).

Gotchas learned the hard way are in the assistant's memory (lane-rebase-mechanics): anchor enum insertions on unguarded entries; a candidate's fixups must be reflected in the chain ref; a shared-function signature change needs its cross-topic callers plumbed in the octopus (now: in topics/stripe-alloc itself, since the caller commit moved there).