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Check-in [343d41b2f3]

Overview
Comment:Add the bisect command: DAG binary search for a defect-introducing check-in

zit bisect bad NAME | good NAME | next | status | reset. Marking bad/good moves the checkout to the next probe automatically (fossil parity); next re-announces it; reset restores. The candidate set (full-ancestry ancestors of bad minus the good ancestor-sets minus skipped), the lower-median probe by ascending event-mtime with hash tiebreak, and the culprit are ONE general-purpose repostate query RepoState.bisectSpan, composed from collectAncestors / mergeBaseOf / isAncestorOf / mtimeOf / hashOf per the RESOLVED bisect-midpoint rule (repo-state 2/3.2/3.3/8.3) — the CLI never walks ancestry. Bisection state is checkout-local in .zit-bisect on the undo.zig state-file tier (atomic write + fsync, magic/CRC frame, corrupt -> exit 1), in the never-tracked/extras set; probe/culprit/reset moves go through the journal-armed update.applyCheckin behind requireCleanTree. Refusals (inverted marks, unrelated histories) exit 1. 1661 unit + 339 e2e green; fmt clean.

Timelines: family | ancestors | descendants | both | cli
Files: files | file ages | folders
SHA3-256: 343d41b2f33a39aa854bef43a25d98c90981c5b381e9ffae89da516678e5069c
User & Date: dmestas on 2026-07-18 14:22:23.164
Other Links: branch diff | manifest | tags
Context
2026-07-18
14:40
Deepen log with an optional PATH: fold finfo into one verb

zit log CHECKIN [PATH]. With no PATH, behavior is byte-identical to today. With PATH, the ancestry walk emits only the check-ins that CHANGE that path: a check-in K changes PATH iff PATH's effective content (via Repository.fileAt, the one artifact 8 effective-set query — no CLI-side F-card re-derivation) differs from PATH's content in K's PRIMARY parent (first-listed P card, repo-state 3.2). Presence flips count (root add, delete, rename departure/arrival as delete+add, no old-name following); equal hashes are no change; a phantom parent reads as absent. walkLog gained an optional filter; the null path preserves the shipped DFS verbatim. The finfo/log split was historical accident, not design — one deep log replaces a shallow sibling, no new verb. 1661 unit + 343 e2e green; fmt clean. check-in: 6a360f33ff user: dmestas tags: cli

14:22
Add the bisect command: DAG binary search for a defect-introducing check-in

zit bisect bad NAME | good NAME | next | status | reset. Marking bad/good moves the checkout to the next probe automatically (fossil parity); next re-announces it; reset restores. The candidate set (full-ancestry ancestors of bad minus the good ancestor-sets minus skipped), the lower-median probe by ascending event-mtime with hash tiebreak, and the culprit are ONE general-purpose repostate query RepoState.bisectSpan, composed from collectAncestors / mergeBaseOf / isAncestorOf / mtimeOf / hashOf per the RESOLVED bisect-midpoint rule (repo-state 2/3.2/3.3/8.3) — the CLI never walks ancestry. Bisection state is checkout-local in .zit-bisect on the undo.zig state-file tier (atomic write + fsync, magic/CRC frame, corrupt -> exit 1), in the never-tracked/extras set; probe/culprit/reset moves go through the journal-armed update.applyCheckin behind requireCleanTree. Refusals (inverted marks, unrelated histories) exit 1. 1661 unit + 339 e2e green; fmt clean. check-in: 343d41b2f3 user: dmestas tags: cli

13:45
Add the artifact command: the plumbing window over the one parser

zit artifact HASH [--raw] — zit's cat-file/whatis. No flag: a whatis summary (hash, structural type per artifact 5.1/5.3, size, one line per A..W card in stored order, and the 6.2 Z self-checksum verdict). A blob reports type file, size, and binary-or-not. --raw emits the verbatim stored bytes. Resolves a 4-64 hex prefix over the LogStore (ambiguous -> exit 1), reads via the existing 7.2 blob path. Everything shown comes from the ONE existing artifact parser — refactored into frameNoZ/frame/assemble with a Z-tolerant parseWindow — never a CLI-side re-parse. 1649 unit + 335 e2e (13 new B-artifact) green; fmt clean. check-in: f477c3bf19 user: dmestas tags: cli

Changes