Tags and Properties for Check-in 07b30dccde
- branch=feat/horizon-cones inherited from [f8bb98e196]
- sym-feat/horizon-cones inherited from [f8bb98e196]
- sym-trunk inherited from [f5744359d3]
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2026-10-23
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| 05:29 |
perf(serve): send a clone's delta chains once
A clone round sends each row with its delta chain, source first, but only remembered what it sent within the round. fossil deltifies each version of a file against the next, so the rows of a file's versions come in rid order, each a delta on a later one: the oldest version's round sent the whole history, and each later version's row, reached in a later round, sent the rest of it again. Cloning the Fossil repository received 333,063 delta cards by round 64 for 22,353 new artifacts, each checked again by the client. The origin now infers what earlier rounds sent: a row below the cursor that its round sent as itself reaches, through sources this clone forwards, every node of its chain. sentEarlier walks down the delta table from a row or a chain source, at most 256 rows, and a row it finds sent is skipped like one sent earlier in the round, and a chain stops at a source it finds sent. Not finding one sends again, which is only redundant. A row below the cursor filled or published after its round passed it is taken as sent; rows below the cursor are not sent again in any case. check-in: 07b30dccde user: [email protected] tags: feat/horizon-cones, trunk | |
| 05:07 |
fix(serve): serve reading requests in a read transaction
Every request ran in a write transaction (BEGIN IMMEDIATE) for as long as it was served, a horizon request read the classification memo in another, and each request created the table-sync schema on a repository without it. A clone arriving while another request was served waited for the write lock past the 5s busy timeout and got HTTP 500 "database is locked (SQLITE_BUSY)"; its client gave up after four attempts. The real-repository gate hit it with a horizon clone beside a dense one. A request none of whose cards can write now runs in a read transaction (db.WithBoundReadTx), which takes a snapshot without the write lock; the memo read does too; loading synced tables only reads, and a schema card creates the schema it registers into. Requests that write keep their write transaction. v0.14.0 has the same write transaction per request: a clone from its server fails the same way while another connection holds the lock. check-in: f8bb98e196 user: [email protected] tags: feat/horizon-cones, trunk | |
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2026-04-19
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| 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 | |