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Tags and Properties for Check-in 294a537880

Context
2026-10-19
16:10
fix(checkout): save undo state in Update, as fossil does

Update saved no undo state, so nothing could reverse it. It now reads the file of every step that writes or removes one before writing, as fossil's update calls undo_save, and saves those files with copies of vfile and vmerge and the checked-out version in the same transaction that moves the checkout to the target. If a write fails partway the files are put back, as fossil's undo_rollback does.

Checkout.Undo and Checkout.Redo (internal and public) swap that state back and forth and keep checkout-hash naming the restored version. The undo package gains ReadFile, SaveTx and RestoreFiles, and its undo table now has fossil's schema (isExe, unique pathname, rowid order, the executable bit read from disk), so fossil undo reverses a go-libfossil update and Checkout.Undo reverses fossil update; fossil 2.28 interop tests check both. Under js/wasm, which has no undo package, Update saves nothing.

Tracked in #446 check-in: 294a537880 user: [email protected] tags: feat/submanifest-reader, main, trunk

15:59
Merge branch 'fix/update-renames' into feat/submanifest-reader

# Conflicts: # CHANGELOG.md check-in: 5d0a52d706 user: [email protected] tags: feat/submanifest-reader, main, trunk

2026-10-17
20:27
test(conformance): re-pin the -01 drafts with the 2026-10-14/16 errata (#436)

zit check-in 3f86ff4261 applies six more errata to the -01 drafts. Copy the three drafts and the five new -01 errata files, re-pin their SHA-256 in the requirements tables, and record the check-in in the README.

The draft text changes add six requirements and reword two:

- AF-4.7.3-2: a named delta's delete markers are filtered out of a delta-of-delta's file set and lookups. - AF-4.7.8-1: an absent and a present empty J value decode alike. - AF-6.2-7: the Z verification state is read from the bytes at n-35 and n-34, not from card lines. - RS-5.3-3: a cancel keeps its card's value on the row it writes. - RS-5.3-6: the event table and propagation treat that value as null. - RS-5.3-7: an artifact's tag cards apply in card order. - RS-6.2-4: a branch root carrying *sym-NAME and -sym-NAME keeps the tag. - SP-6.6-4: a client recognizes a refusal by its leading text.

go-libfossil already behaves this way. Each row has a case, checked against fossil 2.28 where the harness does: 421 requirements, 420 covered, 1 partial (SP-9.5-7, as before).

The repo-state §5.3 step 3 change is filed in zit as a -00 erratum and is not pinned, like the other -00 errata; the -01 draft carries its text. check-in: f61c8174a8 user: [email protected] tags: main, trunk

2026-04-19
16:30
Initial open source release

libfossil is a pure-Go implementation of the Fossil SCM, reading and writing the same .fossil SQLite repository format as upstream Fossil.

This is the first public release of code that previously lived in a private repository. The module path is github.com/danmestas/libfossil and the binary is named libfossil to avoid $PATH collisions with upstream fossil.

Included: - Repo lifecycle (create, clone), checkout/checkin, timeline, merge, diff, annotate, shun, tag, branch, bisect, stash, undo/redo - Sync-over-HTTP protocol (client and handler) - Two SQLite drivers: modernc (pure Go, default) and ncruces (wasm-capable) - Observer interfaces (SyncObserver, CheckoutObserver) with an optional OpenTelemetry implementation in observer/otel (separate submodule) - Deterministic simulation testing harness with BUGGIFY fault injection - Kong-based embeddable CLI under cli/ and a standalone binary under cmd/libfossil/ check-in: f5744359d3 user: [email protected] tags: trunk