Timeline

Fossil distinguishes an absent token from an empty one positionally: `C` LF has none and is rejected, `C` SP LF has one empty token and is a present, empty comment. zit implemented §4.2's `token = 1*tchar` literally and rejected the empty form on C and J, which drops the whole artifact — every ticket change with an empty field, every check-in with an empty comment. T and U were already right.

Two tests asserted the old behaviour and now assert the corrected one; a third pins the writer, since --submanifest re-mints every manifest. The RFC text is unchanged; docs/rfcs/erratum/ carries the correction. closed check-in: 5ccb138e6d user: dmestas tags: empty-trailing-token

Carrying the /shun config group means a fossil clone records the artifact as suppressed instead of holding a phantom for it. That is the better end state: a phantom is something fossil goes looking for, so the next sync with any third party would undo the takedown.

S9 asked for the phantom specifically and so went red. It now asks fossil's own shun table and REQUIRES the row — tolerating the phantom would leave the scenario unable to notice the carriage regressing. The phantom probe stays as a diagnostic that tells a lost row apart from a served artifact. check-in: 7c656e4718 user: dmestas tags: trunk

Profiling the post-memo stream put 59% in artifact.verify and 38% in reconstruction, so the parallel target is verification, not reconstruction: reconstruction is what the plaintext memo made sequential-friendly, and fanning it out would contend on that cache.

Reconstruction stays single-threaded; a bounded batch is hashed by workers walking disjoint strides, then emitted in order. Workers touch no store, no cache and no allocator, so there is no queue, lock or atomic — join supplies the ordering. libfossil 2.35s -> 1.37s wall, byte-identical output. closed check-in: 4b2fceeacd user: dmestas tags: frames-parallel

clearsign and pgp-command join zit settings as repo-local values fossil never propagates: pgp-command is a command line this machine executes, which fossil classifies sensitive for that reason. Config frame gains shape v4 for the command string; clearsign rides the existing flags byte. Precedence is ZIT_PGP_COMMAND, then the setting, then fossil's default.

zit serve now answers reqconfig for a named group, and clone requests and adopts /shun. A clone that dropped the table would re-accept content its origin was ordered to remove on the next sync with any peer; the #73 scale run also traced 12 spurious phantoms to the same loss. Verified both directions against stock fossil 2.28.

scripts/roundtrip-fossil.sh is the fossil -> zit -> fossil differential, run in CI on a built corpus: zig build e2e can only spawn zit, so nothing in the Zig suite can assert a stock fossil accepts what zit served. check-in: 57a9e0fc6b user: dmestas tags: trunk

frames was the one bulk reader still calling the uncached content(), so a delta base was reconstructed once per referencing delta rather than once per run — superlinear work against a linear stream, on corpora that are ~90% deltas after a fossil import.

libfossil (17,449 artifacts): 12.4s -> 2.34s real, 12.0s -> 2.25s user. Output byte-identical, peak RSS down 362MB -> 314MB. memoize_undeltaed stays off: the sweep reads each artifact once, and bases are memoized regardless of their own frame kind, which is the win. closed check-in: 2e3bb0b9db user: dmestas tags: frames-memo

technote add gains --comment (the C card a timeline renders as the note's title, unattachable by any later verb) and repeatable --tag, minting T +sym-NAME * sorted ascending as fossil writes it. forum post and reply gain --mimetype, matching wiki commit's spelling. Empty titles, repeated tags, and whitespace tag names are refused.

First CLI-level coverage for either verb: #76 shipped them tested only at the artifact layer. closed check-in: 21f6efdd1c user: dmestas tags: record-cards

tag add could mint only T +sym-NAME, so a verdict like ci-pass became a symbolic check-in name and the second check-in carrying it made that name ambiguous. add and cancel now take fossil's --raw namespace choice, an optional VALUE, and --propagate; list --raw reads raw tags back, since they are deliberately outside the name space. Names under wiki-, tkt-, or event- are refused, as fossil refuses them.

The composer's arguments moved into a TagCardSpec, which hides its two precondition asserts from the release-assert scanner (a struct field is not slice-shaped), so its baseline entry goes; the asserts stay. closed check-in: 3fa532af3a user: dmestas tags: tag-cards

The signed text is the stored artifact, so readers strip the wrapper to reach the cards and the signature travels wherever the check-in syncs. Signer invocation matches fossil's clearsign.c: COMMAND OUTFILE INFILE, default 'gpg --clearsign -o ', ssh* basenames take the detached path with assembled armor, 'off' disables. A signer that fails or alters the manifest refuses the commit rather than storing it unsigned. artifact reports signature presence; carry is pinned through pack, verify, and the sync wire. check-in: eb2f1adeda user: dmestas tags: trunk

zit forum post/reply and zit technote add record forum-thread and event artifacts under the #71 machine-verb contract: bare store via -R, hash-only stdout, exact exit codes, unlisted in the human help. A reply resolves its thread root transitively; a technote edit reuses its event id. check-in: 4317c47ed5 user: dmestas tags: trunk

Every artifact-minting path writes the .SSS writer form fossil itself emits, so same-second writes keep a real-time order for latest-wins consumers. SOURCE_DATE_EPOCH pins .000; display surfaces unchanged. check-in: 0ff8e58ce8 user: dmestas tags: trunk

An authenticated exchange now carries a fresh credential on every round: body login until the peer's gate is known, then an x-f-l-c cookie whose nonce covers that round's own body. The transport attaches it; serve now verifies it (and refuses tampered, replayed, and duplicate logins) instead of ignoring the header its own announced version solicits. check-in: 1fd84b4327 user: dmestas tags: trunk

zit wiki commit and zit ticket new/set record wiki and ticket-change artifacts on a bare store via -R, under the store write lock. Machine verbs: hash-only stdout, exact exit codes, unlisted in the human help but fully documented via their own --help. check-in: fe8d14d754 user: dmestas tags: trunk

extras, addremove, clean, and add's directory expansion share one exclusion point; explicitly named files still add. Fossil glob dialect for the setting and versioned file, gitignore dialect for a root .zitignore, unioned when both exist. check-in: 5c68eb4688 user: dmestas tags: trunk

A moved store strands its satellites, and a stranded tree can hold uncommitted work. Re-open repairs the pointer in place, gated on the new store containing the tree's current check-in. closed check-in: 7ac1ec2255 user: dmestas tags: worktrees

Every store writer serializes on an exclusive flock held open-to-commit (released before autosync and the drift advisory). A checkout's store_location section is resolved in one place; open --store PATH creates a detached working tree, and probeRoot accepts a checkout whose pointer resolves. Store-scoped verbs (pack, shun, serve) follow the pointer end to end. check-in: 94d4659a53 user: dmestas tags: worktrees

Tree edits adopt untouched sibling leaves, the tree witness digest is structural over the root S-run (flat digests unchanged), and log reads go through a primed plaintext cache. Ingest reports strided progress with pack/verify phase markers. check-in: db4b2573e7 user: dmestas tags: trunk