Timeline

One bit per log frame in .zit-cache/dispositions: crosslink-relevant or not. A full derive consults it and never reconstructs the file blobs and SUBMANIFEST tree nodes that were most of a wide store's walk; the walk distills a fresh map either way. Same trust tier as the log-scan index: self-checksummed, keyed to a validated log prefix, stamped with the shun fingerprint, absent on any doubt. pkgsrc submanifest cold derive 302 s to 22 s; a consuming derive's body is byte-identical, pinned by test. check-in: a18d2edd67 user: dmestas tags: trunk

repocache.store and checkpoint.store concatenated header + body + image into a full resident copy before writing; both now stream the pieces to the file with the checksum folded incrementally, byte-identical output. The clone path frees its view before the reopen builds a second derived state. ZIT_DERIVE_FOOTPRINT reports the derive body's composition. pkgsrc cold open: peak RSS 2.32 GB to 2.07 GB. check-in: 3107e23e24 user: dmestas tags: trunk

A dense clone no longer holds the repository in memory until the exchange ends: each round's artifacts land in the log and their resident bytes are released, the shape of git's index-pack. A delta whose basis has not arrived defers on its hash; a basis first seen as a phantom is revisited when its content lands. Cone-scoped clones keep the batched pass, whose keep set needs the converged store. Streamed and batched logs are byte-identical, pinned by test. ZIT_PERSIST_WAITING reports the drain's peak deferred set. check-in: 533b0a6490 user: dmestas tags: trunk

Fossil-dialect globs treat ! as a class member; only ^ negates. open reads a versioned-only manifest setting out of the check-in and remembers --manifest=off so update cannot re-enable stamps. add --force adds a named ignore-glob match; directory expansion always honours ignore and clean globs. .fos root names compare case-sensitively on Linux. check-in: b7e077e430 user: dmestas tags: trunk

The crosslink record now carries each changed file's artifact hash (fossil's mlink shape), so annotate reads blobs by hash instead of re-deriving every manifest on the walk. merge3 moves to a linear-space Myers LCS and annotate caches plaintext and baselines across versions. Repocache format 5, checkpoint format 5: the first open after upgrading re-derives. Help states the 12-character prefix annotate actually prints. check-in: a6c2215859 user: dmestas tags: trunk

The crosslink record, the state and the image now carry each check-in's Q cards (sign and target), so the cherrypick/backout line needs no manifest read. Record format 4, image layout 7. info NAME 16 ms to 6 ms on libspatialite, level with leaves; output unchanged. check-in: adb05cc14e user: dmestas tags: trunk

A cache whose image is absent or at an old layout replayed the record body on every fast_read open, since only a miss stored. The hit now serializes the image from the view it just built and stores it, so the fallback is paid once. check-in: 98c5d6c61a user: dmestas tags: trunk

The image has carried adjacency since layout 2 and comment/login since layout 6, so every default row renders from the zero-parse path; only full/-v/-p still read manifests. 60 ms to 8 ms on a 22k check-in store, output byte-identical across formats. check-in: 18ffce5678 user: dmestas tags: trunk

One record scan, as annotate, instead of a manifest per check-in: 20,937 reads to 272 on VERSION, 19s to 0.4s. Each version is reported once under its oldest introducer, matching fossil grep's list byte for byte. check-in: 6be0341149 user: dmestas tags: trunk

A front web server that appends "; charset=utf-8" made the clone reply look compressed, so its plaintext was read as a 1.6 GB container and refused as too large. parseMediaType now ignores parameters and case, as fossil does; serve uses it instead of its own copy. check-in: 8488af309e user: dmestas tags: trunk, version-0.3.6

Glob lists follow Fossil's tokenizer and '#' comment lines; crnl-glob, clean-glob, empty-dirs, encoding-glob, dotfiles and mimetypes work at every tier. Dotfiles are hidden by default and Fossil's checkout-state names are never listed. UTF-16 and invalid UTF-8 classify as Fossil's lookslike.c does; tokenizer rules from glob.c. check-in: 982afa3d8f user: dmestas tags: trunk

Every ancestor cost a manifest read and a full-file line diff — ~36k of each on SQLite where ~400 touched the file. The cache records already say who changed PATH (their diff is against the primary parent, so unlisted means byte-equal there): untouched ancestors inherit the parent's content pointer, the engine copies the parent's origins on pointer-identity, and the LCS trims the common prefix/suffix before its O(n*m) table.

Unfinishable on SQLite before; 0.5-1.2s typical, 57s for a 15k-line heavily-edited file (the multi-hunk quadratic middle remains — a real diff core is the named follow-up). Attribution of a repeated line between equally-valid origins can shift, as any LCS tiebreak may.

zit#172 check-in: 22bdf84fd3 user: dmestas tags: trunk

The default-format timeline inflated a manifest per row — the fetch condition still said 'a.format != .oneline' from when oneline was the default, so zit#170's medium default made every row read one for two strings the image now carries. 66.5s to 0.37s for the full SQLite timeline, output identical.

Repository.manifest counts its reads (ZIT_MANIFEST_READS=1 reports on exit), and an e2e runs ten listings over two history sizes and requires identical counts — a per-row reader fails by construction, no timing, no constants.

zit#172 check-in: 09fa1a7fb3 user: dmestas tags: trunk

zit leaves read and parsed a whole manifest per row — through its delta chain — for the comment's first line and the login. A warm store is image-backed and the image carried neither, so commentOf answered null and every row fell back to that read: 472 leaves, one second, on sqlite.

The image now materializes both: the comment CSR-addressed per rid, the login interned (a repository has a handful of committers). layout_version 6 — an older image is a miss and rebuilds, as the disposable cache intends.

0.3.2. check-in: 71d327a695 user: dmestas tags: trunk, version-0.3.2

The derive built the complete effective file list for every check-in and its parent, then compared them — O(files) per check-in, which on pkgsrc is 100k entries twice over, 305k times. Fossil's add_mlink merges the two deltas' own F cards and seeks the shared baseline; do the same, and walk the lists side by side when the baselines differ instead of materializing them. Keeps recently-read manifests parsed, pinned while a step holds them.

zit#172 check-in: 669593f624 user: dmestas tags: trunk

Twelve-character hashes and the weekday in day headers and leaf lines are the departures; -F oneline keeps the one-line timeline for scripts. check-in: 16c197b4dc user: dmestas tags: trunk

Twelve-character names and the weekday in the times are the only departures from Fossil's shape. cli.shortHash and cli.humanTime are the primitives the rest of the terminal-speech work builds on. check-in: d72b6372ab user: dmestas tags: trunk

Both found by running one session through fossil and zit side by side. check-in: a0690841c1 user: dmestas tags: trunk

A bare 'zit update' was a usage error; Fossil's means --latest. check-in: b618fc675d user: dmestas tags: trunk

The converter's hints are the source's own chains and each manifest's parent, so one delta usually settles it; the best-of-N window is the fallback. Conversion is now faster than the old convert-then-pack. check-in: 598d040de5 user: dmestas tags: trunk

Blobs take the flat source's own delta base as the hint, manifests their parent, carried artifacts the recent window. A 28x full-form gap on a toy corpus became 1.3x of packed, with no second pass and no double-disk peak. check-in: 38b9743ff8 user: dmestas tags: trunk

Fossil parity on the everyday verbs, landings and strata, protected branches behind a trusted front, Fossil's user table, and the read paths that now scale with the change rather than the store. check-in: 1e2a7bbc0d user: dmestas tags: trunk, version-0.3.0

Runs quarry ui on the checkout root with the terminal inherited; the binary comes from ZIT_QUARRY or PATH, and an absent one is a three-line pointer, exit 1. check-in: 95553946e3 user: dmestas tags: trunk

--by writes a side-by-side page under $TMPDIR and opens it from a terminal; -F html renders the timeline as a table; ui names quarry's local mode and exits 1 until it exists. check-in: 87f4be2914 user: dmestas tags: trunk

The two new settings ride the keyed config block; a configured editor makes commit editor-capable without a terminal. check-in: 7d9dcb2de1 user: dmestas tags: trunk

--merge three-way merges a stashed change into a dirty file; conflicts get markers, are listed, and exit 5 with the entry kept. check-in: 21ce2c785d user: dmestas tags: trunk

The checkout record carries the integrated leaf's hash as an optional sixth field; commit closes it with the same control artifact branch close mints. check-in: 2a522aab40 user: dmestas tags: trunk

-Z is -w; -N is accepted (an added file's hunks already carry it all). check-in: 39c88046ab user: dmestas tags: trunk

The managed set records one pending rename per moved file. mv moves files into a directory or a tracked directory as a unit, --soft records without moving, -n previews. revert -r VERSION restores another check-in's content; revert/undo/redo -n name what they would touch. add -f takes ignored files; clean gains -n/-f and --emptydirs. check-in: ece16d74a9 user: dmestas tags: trunk

branch new/close/reopen/hide/unhide/current/info. clone DIR defaults from the URL and is followed by open (--no-open keeps the bare store); open URL delegates to clone. check-in: 5d2f9a7e6e user: dmestas tags: trunk