The command now supports reopening existing indexes instead of failing when the output file exists. Control flow branches between opening an existing index and constructing a new one, moving configuration setup exclusively to the creation path. Directory existence is enforced upfront with proper I/O error propagation. The --force flag retains its original semantics by removing the target directory before proceeding with a fresh build.
Consolidates partition logic, metadata storage, and layer management directly into KmerIndex. Renames obikpartitionner to obikpartition, retaining only PartitionRouter for superkmer routing. Removes intermediate .partition() accessors in favor of direct methods on the index and updates PartitionCache::build to accept &KmerIndex directly. Derives n_partitions from config.n_bits and consolidates k-mer/minimizer sizes into IndexMeta.config. Fixes a regression where PartitionRouter::open incorrectly defaulted to closed.
Update all dependent crates and internal imports to reference the renamed module. Expose configuration parameters and genome metadata through new public accessor methods in the index API, and update documentation comments to align with the new package name.
Update Cargo manifests, dependency paths, and Rust imports across the workspace to reflect the `obikpartitionner` to `obikpartition` rename. Synchronize architecture and implementation documentation with the new module structure. Fix minor syntax issues in test assertions to ensure compilation compatibility. No behavioral or API changes are introduced.
Rename the KmerPartition type to KmerPartitions across obikindex, obikpartitionner, and obikphylo/siblings to reflect an updated data model. Update the Mat enum in siblings/cache.rs to add a SparsePresence variant and simplify opening logic by delegating sparse versus dense detection to PersistentBitMatrix. Apply consistent code formatting, import reordering, and multi-line refactoring throughout the affected modules.
Replaced scattered direct metadata loading with centralized instance methods on `KmerPartition` to guarantee consistent error mapping and legacy recovery. Introduced `StorageKind`, `LayerContent`, and `EvidenceKind` enums alongside lightweight disk-probe methods that inspect file presence without opening heavy data structures. Updated callers across the index, partitioner, and phylo modules to use the new partition API, and added unit tests validating the introspection behavior.
Introduce a design specification outlining performance bottlenecks in layer data access and an agreed-upon implementation direction for caching. Refactor the codebase to centralize index and layer directory path resolution within the partition object, replacing manual string joining and external helper functions with dedicated accessor methods.
Standardizes layer directory path resolution across obikindex, obikpartitionner, and obikphylo by replacing inline string formatting and join calls with the centralized obilayeredmap::layer_dir utility. This refactoring removes redundant path construction logic while preserving existing iteration bounds, control flow, and public APIs.
Centralize the layer count validation into PartitionCache and track it via a new fast_mode flag. Extend query tuples to include a pre-resolved destination layer index, enabling a fast-path batch lookup that bypasses per-layer probing when enabled. Refactor neighbor iteration and hit resolution to eliminate duplication and conditionally dispatch to the optimized path based on the cache state.
Shift the sibling annex construction pipeline from an in-memory atomic mask to a memory-mapped file backend. This enables lock-free concurrent writes directly into the mapped region, streamlining the two-phase write process to accumulate bits atomically before finalization. Adjusted the cache lookup to return the specific matching layer index rather than a boolean flag, and added tests to verify correct layer tracking and cross-partition resolution in merged indexes.
Relocates `SiblingAnnex`, `FamilyMask`, and `SiblingAnnexBuilder` from `obicompactvec` to the local `obikphylo::siblings` module. Replaces the previous implementation with a memory-mapped version using `memmap2`, featuring a 2-byte-per-slot layout, explicit bitfield manipulation, and support for concurrent atomic writes. Updates all sibling module imports to local paths and adds the `memmap2` dependency to `obikphylo`.
Shifts sibling annex construction from slot-indexed enumeration to iteration-order traversal by correcting cumulative k-mer offset tracking in batch enumeration. Replaces coarse per-partition parallelism with chunked work distribution to prevent thread starvation on skewed partitions. Decouples custom progress messages from ETA updates to eliminate display clobbering during high-frequency callbacks. Adds regression tests validating batch offset correctness, partial batch handling, and iterator-order consistency across layer builds.
Relocate the `siblings` and `cardcomp` modules from `obikindex` to a dedicated `obikphylo` workspace member. Convert inherent methods on `KmerIndex` into extension traits, update import paths across `obikmer`, and add supporting accessor methods to `obikseq` and `obilayeredmap`. This restructuring reduces the public API surface of `obikindex` while organizing phylogenetic iteration, caching, and distance calculation logic under a dedicated crate.
Eric Coissac