- Replace `limits` module and raw binary I/O with a new high-level abstraction using obiskio::SKFileWriter
- Remove `niffler` dependency and compression logic (Gzip/Zstd/Lz4/Bgzf)
- Simplify PartitionManager to manage partitioned file writers based on kmer hashing
* Uses `n_partition_bits` for bitmask-based partition selection (2^n partitions)
- Add obiskio as a local dependency
Note: This is likely part of aligning with unified I/O primitives in the obiskio crate.
- Add new obiskio crate for high-performance SuperKmer serialization/deserialization
- Implement binary codec with 2-bit packed sequence encoding and raw header format (32 bits)
- Add transparent compression support via niffler: Zstd, Gzip/Bgzf/Lz4
- Implement SKFilePool with LRU-based fd management, max-concurrent-fd limiting (75% of ulimit)
- Add SKFileWriter with batched writes, configurable flush threshold (8 KiB default), and two-phase locking
- Add SKFileReader with sequential access, LRU recovery via reopen_and_seek()
+ New obikpartitionner crate: basic header/seq handling for binary super-kmer format
- Bump niffler from 2.7 to v3, add dependencies: allocator-api2, bitflags(>=1), errno/fastrand/rustix/tempfile/lru/hashbrown/bzip2/thiserror
- Update workspace members to include obikpartitionner andobiskio
- Replace crossbeam-channel-based threading model
- Introduce obipipeline crate with Stage::Transform/Flat support
- Replace single input + format detection by multiple inputs via PathIter
- Implement pipeline stages: open_chunks → normalize → build_superkmers (flat) + write_batch
- Add SharedFlatFn for 1→N transformations with delta tracking in scheduler loop
- Added `regex` dependency to obiread crate
- Replaced manual byte checks with regex-based detection for FASTA/FASTQ formats in mimetype.rs
- Switched from `once_cell::sync::Lazy` to standard library's `std:: sync :: LazyLock`
- Added generic text/plain fallback detection for ASCII-compatible content
- Updated `MimeTypeGuesser::new` constructor call syntax and simplified API usage of PeekReader's header method
- Implemented `Read trait for MimeTypeGuesser to allow transparent passthrough reading
- Introduce `obipipline` crate with multi-threaded data pipeline architecture
- Implement core types: SourceFn, SharedFun (Arc), SinkFN with biased scheduler and crossbeam channels
- Add macros: `make_source!`, `transform!/fallible`/sink!, and high-level DSL macro
- Replace old wrapper/error modules with unified scheduler module (renamed types, improved error variants)
- Update workspace: add `obipipeline` member to Cargo.toml and lockfile
- Document pipeline in docmd/implementation with full architecture, error handling & example
- Refactor sandbox_pipeline.rs to use new DSL instead of manual channel wiring
- Introduce new `obipackage` library with pipeline stages, scheduler and worker pool
- Refactor path expansion in `obiread`: replace old list_of_files with new PathIter iterator
- Add MIME type detection using `infer` crate (fastq/fasta)
- Update dependencies in Cargo.lock: add bumpalo, byteorder, cfb (with deps), fnv,
infer, js-sys/uuid/wasm-bindgen ecosystem
- Fix formatting and improve tests in SuperKmer (canonical, revcomp)
* Note: edition = "2024" in obipipeline/Cargo.toml is invalid; should be 2021
- Update super-kmer definition in `kmERS.md` to specify that non-degenerate m-mers are preferred over degenerate ones (degeneracy = homopolymer).
- Refactor `superkmer.rs`: change `.canonical()` to mutate in-place and return bool.
- Add `m` field & canonical-aware minimizer position calculation to SuperKmerIter in obiskbuilder.
- Add helper functions `is_degenerate` and minimizer comparison logic to rolling_stat.rs for consistent tie-breaking.
- Minor formatting cleanup in superkmer command and chunk processing.
- Replace `canonicalMinimzer().map(|k| k.raw())` with direct call to new helper method
- Add `canonical_minimizer_raw()` in RollingStat for cleaner access of raw minimizer value
- Remove `entropy.rs`, `minimizer.rs` and `window.rs`; consolidate logic into new module
- Introduce unified state management in RollingStat with incremental entropy tracking and canonical minimizer computation via monotone deque
- Update SuperKmerIter to use RollingStat instead of separate components, simplifying iteration and state transitions
- Add `*.fasta` to .gitignore for generated FASTA outputs
Introduce static precomputed lists of canonical k-mers (K1– K6) via build_canonical_list and expose them through a canonical_kmers() helper. Update RollingStat to accept entropy_max_k parameter, remove obsolete shift_left field and fix minimizer window condition. Refactor normalized_entropy() to use entropy_max_k instead of hardcoded 1..=6, and optimize count-based loop in compute_entropy() to iterate only over canonical indices.
Fix incorrect nucleotide encoding in `rolling_k` update, correct shift amount for reverse complement k-mer (`self.k - 1`, not `k`), and rename method to match semantics. Also add proper windowed minimizer cleanup when received length exceeds k.
- Introduce lazy_static dependency
- Refactor encoding: rename encode_base →encode_nuc and make it pub(crate)
- Add from_raw_right/raw Right methods to Kmer for right-aligned handling
- Improve error message formatting and code readability in kmod.rs tests
- Replace inline entropy computation with precomputed tables (entropy_table module)—using LazyLock for static lookup arrays
- Simplify EntropyFilter by removing redundant tables and delegating to new entropy_table API
- Add RollingStat module for real-time kmer statistics and minimizer tracking
- Reorganize modules: move iter, encoding to pub(crate), add entropy_table and rolling_stat
- Update imports across obiskbuilder crate accordingly
- Change `rope_tell()` return type from Option<usize> to usize, always returning cursor's absolute position (offset if unmoved).
- Update all call sites to remove `.unwrap_or(...)` around `rope_tell()`.
- Add new method `<Rope>::truncate(pos)`, replacing `split_off(...).map(|_| ())`.
- Refactor FASTA/FASTQ normalizers to use a single mutable write cursor (`wc`) and document the protocol.
- Simplify `end_segment()` logic: commit segment with 0x00 if length ≥ k, else reset.
- Improve documentation for write-cursor protocol and rope truncation semantics.
- Introduce SeekMode::Rope for absolute rope-index positioning
- Add CursorState.offset field to support local coordinate systems per cursor
- Implement ForwardCursor.cursor() and BackwardCursor(cursor()) to create sub-cursors with independent offsets
- Update tell(), get(i), set i, len() to use local coordinates (relative offset)
- Add rope_tell(), reset()—deprecate old absolute behavior in favor of offset-aware API
- Add comprehensive tests for sub-cursor semantics, including write/reset and bounds checking
Eric Coissac