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Core: Store, Clock, and Random from loko; the object_store adapter moves to loko - #12
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lakebed was hard to read. The crates are now lakekit-core, lakekit-iceberg, and lakekit, and the repository is polythings/lakekit (GitHub redirects the old name). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The I/O boundary is two traits: Store for objects and Env for the clock, randomness, and waiting (spec 1, D10), with WithEnv to pass both, MemoryStore for tests, and TokioEnv (feature tokio) for native programs. UUIDs come from the uuid crate's builder, fed by the Env. lakekit-object-store is a Store over any object_store client (spec 4); it enables no backends itself. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Docstring coverage is 45.61% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 114 functions across 17 files. (2 skipped… | Write docstrings for the functions missing them to satisfy the coverage threshold. |
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Check name Status Explanation Description Check Check skipped - CodeRabbit’s high-level summary is enabled. Title check The title clearly and concisely summarizes the primary changes: moving core resources to Store, Clock, and Random from loko, and moving the object_store adapter to loko. Linked Issues check Check skipped because no linked issues were found for this pull request. Out of Scope Changes check Check skipped because no linked issues were found for this pull request.
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Docstring coverage is 45.61% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 114 functions across 17 files. (2 skipped: 2 unsupported.)
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Write docstrings for the functions missing them to satisfy the coverage threshold.
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olekslitus
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lakekit split its Host trait into Store (objects) and Env (clock, randomness, waiting) (polythings/lakekit#12). The shared write path's module is now store, and its limits trait WriteEnv; the WASM writer's JsStore and the test's EngineStore implement Store, Env, and WriteEnv. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
olekslitus
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October 21, 2026 02:58
main's content equals this branch's base (44a577d), so the tree stays as it is.
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Actionable comments posted: 3
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Inline comments:
Review comments at @crates/lakekit-object-store/src/lib.rs:
- Around line 66-70: Update the root construction around parsed.host_str() in
from_url to preserve parsed.port() when present, while retaining the existing
host-only and hostless URI behavior. Build the root from scheme, host, and port
explicitly without including credentials or using Position::BeforePath.
- Around line 152-158: Update the listing logic around Store::list to use
list_with_offset for the metadata prefix while preserving literal-prefix
behavior: ensure an object named exactly metadata/v is included despite the
offset being exclusive, retain the existing starts_with filtering, and continue
including matching keys such as metadata/w. Add tests covering both the
exact-prefix object and a longer matching key.
- Around line 113-125: Update the get_range method to call self.path(uri) once,
retrieve the object size with self.store.head, and return an empty Vec when len
is zero or start is at or beyond the object size; only call get_range for valid
non-empty ranges, reusing the resolved path.
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.github/workflows/ci.ymlAGENTS.mdCHANGELOG.mdCONTRIBUTING.mdCargo.tomlPRIOR_ART.mdREADME.mdcrates/lakekit-core/Cargo.tomlcrates/lakekit-core/README.mdcrates/lakekit-core/src/env.rscrates/lakekit-core/src/ids.rscrates/lakekit-core/src/lib.rscrates/lakekit-core/src/memory.rscrates/lakekit-core/src/store.rscrates/lakekit-core/src/uuid.rscrates/lakekit-iceberg/README.mdcrates/lakekit-iceberg/src/commit.rscrates/lakekit-iceberg/src/lib.rscrates/lakekit-iceberg/src/table.rscrates/lakekit-iceberg/tests/iceberg_rust.rscrates/lakekit-object-store/Cargo.tomlcrates/lakekit-object-store/README.mdcrates/lakekit-object-store/src/lib.rscrates/lakekit/Cargo.tomlcrates/lakekit/src/lib.rsspec/0001-host.mdspec/0001-store-env.mdspec/0002-formats.mdspec/0004-store-adapters.mdspec/README.mdspec/milestones/README.mdspec/milestones/v0-1.md
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The time and randomness are two traits, as ZIO's services are (spec 1, D13): Clock (now_ms, sleep) and Random (next_u64). Services passes a store, a clock, and a random source as one value; the native ones are TokioClock (feature tokio) and OsRandom (feature getrandom). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
olekslitus
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olekslitus
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lakekit split its Env trait into Clock and Random (polythings/lakekit#12). The write path's limits are WriteLimits, on their own; the WASM writer's JsStore and the test's EngineStore implement Store, Clock, Random, and WriteLimits. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The three traits, MemoryStore, the test and native implementations, and the object_store adapter are loko's (polythings/loko), shared by the polythings projects. lakekit-core re-exports them and keeps the error type (a store's error converts into it), the UUID helpers, and Services, now built with loko's derive. MemoryServices bundles a MemoryStore, a TestClock, and a SeededRandom for tests. Clock::sleep takes a Duration. lakekit-object-store is gone; the lakekit crate's object-store feature re-exports loko-object-store, and the Iceberg commit through object_store is a lakekit-iceberg test. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
olekslitus
changed the title
loko calls the things it passes resources and its derive Provides (loko#5). Services and MemoryServices are Resources and MemoryResources, built with #[derive(Provides)], and loko is pinned at the revision that has them. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
loko's Random now hands out generators (rng()) instead of numbers. UUIDs fill their random bytes from one generator, snapshot ids and commit jitter draw from one, and lakekit-core re-exports Rng, CryptoRng, and SeededRng. loko is pinned at the revision with the change. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Actionable comments posted: 1
- 🪄 Fix comments: Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @crates/lakekit-iceberg/src/commit.rs:
- Line 14: Replace the std::time::Duration import in the commit module with
core::time::Duration, preserving the existing Duration usage and WASM
compatibility.
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Cargo.tomlcrates/lakekit-core/src/ids.rscrates/lakekit-core/src/lib.rscrates/lakekit-iceberg/src/commit.rsspec/0001-store-clock-random.md
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loko declares bundles with #[loko::bundle] and #[loko::has(…)] fields instead of #[derive(Provides)]; loko is pinned at that revision. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
…cros Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
…again Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
…three Commits took one value bounded by Store + Clock + Random, so callers had to glue a store, a clock, and a random source into a struct that implemented all three. Services is now a plain struct of three references with named fields, built from whatever the caller has: Services::new(&s3, &TokioClock, &OsRandom), or Services::new(&host, &host, &host) for one object that is all three. Commit code says which service each call uses (services.clock.sleep, services.random.rng(), services.store.put), and CommitHooks is generic over the three and receives Services too. MemoryServices is gone (the tests keep their own), lakekit-core no longer re-exports loko's Has traits, and uuid_v7 takes a clock and a random source. Spec 1 records D16. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
olekslitus
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…, polythings/loko#5) Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Follows #9 (the rename, merged); main is merged in. Uses loko from its merged main (polythings/loko#5), by git revision until loko 0.2.0 is on crates.io (loko#1).
Store, Clock, and Random instead of Host, from loko (spec 1, D10, D13, D14):
Store: get, ranged get, exists, put, put-if-absent, multipart upload, list (by string prefix), delete.Clock:now,now_ms,sleep(Duration).Random:next_u64,fill. Readers take only aStore; commits takeS: Store + Clock + Random.loko-store,loko-clock,loko-random), which all polythings projects share.lakekit-corere-exports them withTokioClock(featuretokio),OsRandom(featuregetrandom),TestClock,SeededRandom, andMemoryStore. It keeps what is lakekit's own:Error, which a store's error converts into, keepingNotFound,Invalid, andUnsupported;uuidcrate's builder;Services::new(&store, &clock, &random), three borrowed services.Servicesis three borrowed services with named fields,Services::new(&store, &clock, &random); commits and their hooks take it, so callers don't glue the three into one value. Tests build theirs from aMemoryStore, aTestClock, and aSeededRandom.Store adapters (spec 4, D11, D12, D15): the
object_storeadapter isloko-object-store(it started here aslakekit-object-store). Thelakekitcrate'sobject-storefeature re-exports it aslakekit::object_store. The Iceberg commit throughobject_storeis alakekit-icebergtest. The OpenDAL adapter issue moved to loko#6.Also: the umbrella crate's
object-store,tokio, andgetrandomfeatures; CI checks each feature alone; a DataFusion table providers question (#11).Checks:
-D warnings.wasm32-wasip2build.object_storecommit, and the doctests.🤖 Generated with Claude Code