Parents and children of check-in [c0a116d458]
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2026-08-10
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| 23:12 |
Add zit checkpoint: durable prefix resume for hybrid history
.zit-cache/checkpoint pairs a validated log-prefix key with the prefix's crosslink record body; Repository.open resumes past the flat segment on a cache miss instead of re-parsing it. Witness shape under a closed emission gate creates zero artifacts; tree shape pins the anchor's file set as the canonical S-tree (batch-oracle byte-identical, one interior root node). verify re-derives every claim from real history; --no-cache bypasses both sidecars. New verb: zit checkpoint [show|build|verify|drop]. pkgsrc (163k commits, 60k files): cold open 8.4s vs 352s full derive; verify passes; 366/367 tree nodes deduplicated against the imported tree. check-in: e4026acd7b user: dmestas tags: sub-manifest | |
| 20:17 |
Delete the legacy reserved-name tier (consolidation Task 7)
The policy is three names and a prefix: .zit, .zit-checkout, .zit-cache, .zit-tmp-*. Removed: the absorbed sibling reservations (.zit-managed/-undo/ -bisect), the pre-directory cache/vstat spellings and their read tolerance, the retired scratch spellings, and the import-provenance names (refs, .zit-import-map.jsonl). Behavior shift: in never-re-opened old checkouts these leftovers are now visible to extras and deletable by clean. The container's byte-1 fold stays, so a legacy authoritative sibling still migrates losslessly on first contact (e2e: every-leftover checkout converges to the clean root with membership intact). check-in: c0a116d458 user: dmestas tags: sub-manifest | |
| 19:31 |
Fold managed/undo/bisect into the .zit-checkout container v2 (consolidation Task 6)
Sectioned container (ZITCKOT, tagged table, whole-file CRC); payloads are the existing formats unchanged. Byte-1 dispatch migrates legacy checkouts on first write; siblings dead once a container exists. Undo/redo restore and the commit/merge record+membership writes each collapse to one atomic splice. DST gains a legacy-seeded migration sweep (full-legacy or full-container at every crash cut). Registry: the three names move to the legacy tier. Perf on pkgsrc: adjacent update 6.50s (was 6.8), no-op 5.14s (was 7.69); migration of a 66k-file checkout invisible inside one update. check-in: efa29d234f user: dmestas tags: sub-manifest | |