Artifact 343d41b2f33a39aa854bef43a25d98c90981c5b381e9ffae89da516678e5069c:
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. by dmestas on 2026-07-18 14:22:23.
C Add\sthe\sbisect\scommand:\sDAG\sbinary\ssearch\sfor\sa\sdefect-introducing\scheck-in\n\nzit\sbisect\sbad\sNAME\s|\sgood\sNAME\s|\snext\s|\sstatus\s|\sreset.\sMarking\sbad/good\smoves\nthe\scheckout\sto\sthe\snext\sprobe\sautomatically\s(fossil\sparity);\snext\sre-announces\nit;\sreset\srestores.\sThe\scandidate\sset\s(full-ancestry\sancestors\sof\sbad\sminus\sthe\ngood\sancestor-sets\sminus\sskipped),\sthe\slower-median\sprobe\sby\sascending\nevent-mtime\swith\shash\stiebreak,\sand\sthe\sculprit\sare\sONE\sgeneral-purpose\nrepostate\squery\sRepoState.bisectSpan,\scomposed\sfrom\scollectAncestors\s/\nmergeBaseOf\s/\sisAncestorOf\s/\smtimeOf\s/\shashOf\sper\sthe\sRESOLVED\sbisect-midpoint\nrule\s(repo-state\s2/3.2/3.3/8.3)\s—\sthe\sCLI\snever\swalks\sancestry.\sBisection\sstate\nis\scheckout-local\sin\s.zit-bisect\son\sthe\sundo.zig\sstate-file\stier\s(atomic\swrite\s+\nfsync,\smagic/CRC\sframe,\scorrupt\s->\sexit\s1),\sin\sthe\snever-tracked/extras\sset;\nprobe/culprit/reset\smoves\sgo\sthrough\sthe\sjournal-armed\supdate.applyCheckin\nbehind\srequireCleanTree.\sRefusals\s(inverted\smarks,\sunrelated\shistories)\sexit\s1.\n1661\sunit\s+\s339\se2e\sgreen;\sfmt\sclean. D 2026-07-18T14:22:23.164 F .fossil-settings/ignore-glob 48212e9febe6d74143ee9ac63664d0385fbd2cb43e9877c4c7d86f1faf726292 F README.md 62e1f936cc2ea0e33d717539bdffd6126a639843069bd6256359f2b15cb06232 F build.zig 362c522e6e7a7d7b54a660663f97e7d8ca5ad53a9eb6b6fe458c3b1d44e2d3fa F build.zig.zon d5d4d8f8c01f55e69078eabf2ee65f7c1756bdbb2f71738ac5de9de99e69aff1 F docs/rfcs/draft-fossil-artifact-format-00.txt a6d542a5effeb41d0ea1e916058ccdc0a5819787f167ef1ebad7814f5680e7ad F docs/rfcs/draft-fossil-delta-format-00.txt d8025d6d75322e33887c3334a4b9cc729960028b3c994ed01e5a474e4b388fd2 F docs/rfcs/draft-fossil-repo-state-00.txt fd413bcb28001a8a07009ca0c769cfe666394ba79dd4f14a6461f2b592049595 F docs/rfcs/draft-fossil-sync-protocol-00.txt aa55791464a54ef4b651df8780ba5c46e95c723c7997d09a5b727fef658f920a F src/artifact.zig c630afd9fbbcfaccd7b823105b4d05db1dc85b6af03080a6d58635ed064672ca F src/artifact_fuzz.zig 8bb359ddfe790818e109a1dd7ac0c1b5cec1a8fdc556f37e73504cdb7f933e17 F src/artifact_test.zig 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