feat(rag): port augment module from lancedb to leann-rs#897
Merged
Conversation
Replace lancedb vector storage with leann-rs HNSW-based indexing for the RAG pipeline. This removes heavyweight lancedb/arrow dependencies in favor of leann-core which provides HNSW vector indexing, sentence-based chunking, and passage management. Key changes: - Remove storage.rs (lancedb VecDB wrapper) and windowing.rs (line-based chunking), replaced by leann-rs equivalents - Add SpnlEmbeddingProvider adapter bridging spnl's async embed() to leann-core's sync EmbeddingProvider trait - Rewrite layer1.rs to use LeannBuilder with chunk_text() chunking - Rewrite retrieve.rs to use HNSW search with stored vectors - Rewrite raptor.rs with two-phase batch-rebuild approach (documented in RAPTOR_LEANN_PLAN.md) - Replace vecdb_uri/vecdb_table options with index_dir, chunk_size, chunk_overlap Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> Signed-off-by: Nick Mitchell <nickm@us.ibm.com>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
storage.rs(lancedb VecDB wrapper) andwindowing.rs(line-based chunking), replaced by leann-rs equivalentsSpnlEmbeddingProvideradapter bridging spnl's asyncembed()to leann-core's syncEmbeddingProvidertraitRAPTOR_LEANN_PLAN.md)Test plan
cargo build --features ragcompiles without lancedbcargo clippyclean on bothspnlandspnl-cliwith full CI feature setscargo test -p spnl --features ...per core.yml)retrievetest exercises full index→search pipeline with local embedding model.index,.ids.txt,.leann.meta.json,.leann.passages.jsonl,.leann.passages.idx)🤖 Generated with Claude Code