5 commits

Author	SHA1	Message	Date
Gergő Magyar	2a0c97c178	fix: add platform-aware semantic fallback (#1150) ... * fix: add platform-aware semantic fallback Make VECTOR an optional capability so Windows analysis remains stable while semantic embeddings can fall back to exact scan when native vector indexing is unavailable. Made-with: Cursor * fix: remove stale vector pool import Keep the merge with main lint-clean after VECTOR loading moved out of the read pool.	2026-04-28 12:21:25 +01:00
Gergő Magyar	ffa0510f9a	fix(lbug): prevent DuckDB extension install hangs (#1129) ... * fix(lbug): bound DuckDB extension install via ExtensionManager (closes #1128) `gitnexus analyze` could hang indefinitely (60% / 85% on Windows) when DuckDB's `INSTALL fts` or `INSTALL VECTOR` was unable to reach `extensions.duckdb.org`. The DuckDB driver's INSTALL is a synchronous network call, so any blocked egress would block the Node event loop forever. Replace the ad-hoc, in-process INSTALL/LOAD scattered across `lbug-adapter.ts` and `pool-adapter.ts` with a single `ExtensionManager` that owns the lifecycle of optional DuckDB extensions: * `LOAD` is always tried first — per-connection, idempotent, no network. * If `LOAD` fails and policy permits, INSTALL runs in a short-lived child Node process bounded by `GITNEXUS_LBUG_EXTENSION_INSTALL_TIMEOUT_MS` (default 15s). The parent loop keeps spinning; on timeout the child is killed with SIGKILL and the capability is flagged unavailable. * Capabilities and install attempts are cached per process, so a single bounded install per extension covers every subsequent call. Install policy is now an explicit, per-context decision: * `auto` (default for analyze) — try LOAD, fall back to bounded INSTALL. * `load-only` — used by `pool-adapter` (serve / MCP read paths) so user queries never block on a network install. * `never` — operator escape hatch for offline / airgapped environments. `createFTSIndex` and `createVectorIndex` now check the boolean return value before issuing the index DDL, so missing extensions degrade BM25 and semantic search gracefully without ever throwing during analyze. Tests: - New unit suite for `ExtensionManager` covering LOAD-first behavior, all three policies, install caching, observability, and warn dedup. - Existing vector-extension integration tests pass against the new boolean return type. - Existing embedding-pipeline mocks updated to return `true`. Docs: `gitnexus/README.md` documents `GITNEXUS_LBUG_EXTENSION_INSTALL` and `GITNEXUS_LBUG_EXTENSION_INSTALL_TIMEOUT_MS` with examples for offline and slow-network environments. Made-with: Cursor * fix(lbug): move DuckDB extension install child into script Keep the bounded out-of-process INSTALL behavior, but replace the inline child code with a stable packaged ESM script. This makes the child process directly runnable and gives debuggable stack traces without source-vs-dist branching or a runtime transpiler. Made-with: Cursor	2026-04-27 23:09:17 +01:00
evolution	2b7cff5fd2	feat(embeddings): structural chunking with data-driven CHUNKING_RULES dispatch (#987) ... * feat(embeddings): structural chunking with data-driven CHUNKING_RULES dispatch Replace hardcoded label comparisons with a CHUNKING_RULES lookup table that drives chunking strategy and text generation. Key changes: - Data-driven dispatch: CHUNKING_RULES table maps labels to chunking mode (ast-function / ast-declaration), prefix/suffix, field grouping, and structural text mode - Struct support: add Struct to AST declaration chunking with field grouping (same as Class) - Multi-chunk context: preceding chunk tail (prevTail) injected into embedding text for cross-chunk coherence - Version-gated hashes: EMBEDDING_TEXT_VERSION prefix in content hashes invalidates stale vectors when text template changes - Compact container context: first declaration line preserved in every structural chunk for identity * fix(embeddings): address PR review findings for CHUNKING_RULES refactor - Remove LABEL_ENUM from STRUCTURAL_LABELS to avoid wasted AST parses - Add maintenance note about extractStructuralNames and EMBEDDING_TEXT_VERSION - Clarify CHUNK_MODE_CHARACTER is a no-op in CHUNKING_RULES - Strengthen EMBEDDING_TEXT_VERSION test assertion to exact value --------- Co-authored-by: wangjichao <wangjichao@inke.cn>	2026-04-20 08:25:31 +01:00
evolution	02739085d2	feat(embeddings): AST-aware chunking with offset-based splitting (#889)	2026-04-16 22:55:04 +01:00
Copilot	1df79c2eab	fix: content-hash staleness detection for embeddings and vector index creation on zero-node path (#831) ... * Initial plan * fix: stale vectors preserved on content edits and vector index missing after zero-node run Issue 1: Add contentHash to EMBEDDING_SCHEMA and embedding pipeline. - contentHash column persisted per CodeEmbedding row - POST /api/embed queries nodeId+contentHash, compares per-node hash - Stale rows (hash mismatch) are DELETE'd before re-embedding - Legacy DBs without contentHash treated as stale (full re-embed) - loadCachedEmbeddings and run-analyze cache restore include contentHash Issue 2: createVectorIndex called unconditionally before zero-node early return. Regression tests: - contentHashForNode determinism and content-change detection - EMBEDDING_SCHEMA includes contentHash STRING column - Pipeline exports verified Agent-Logs-Url: https://github.com/abhigyanpatwari/GitNexus/sessions/1581c0c0-f359-4376-b47e-62d24a28fd2d Co-authored-by: magyargergo <11230420+magyargergo@users.noreply.github.com> * fix: use parameterized query for stale embedding DELETE, revert package-lock.json Agent-Logs-Url: https://github.com/abhigyanpatwari/GitNexus/sessions/1581c0c0-f359-4376-b47e-62d24a28fd2d Co-authored-by: magyargergo <11230420+magyargergo@users.noreply.github.com> * fix: address review feedback — config consistency, narrow catches, extract DB logic Bug #1: Use finalConfig consistently in contentHashForNode (line 224 was using raw `config` while line 307 used `finalConfig`). Cache precomputed hashes in filter phase to avoid double computation (Perf #5). Bug #2: Narrow catch in loadCachedEmbeddings to only fall back on column/table-missing errors. Rethrow transient/connection errors. Bug #3: Log non-trivial DELETE failures instead of silently swallowing. Arch Violation #3: Extract fetchExistingEmbeddingHashes from api.ts into lbug-adapter.ts. Server layer now calls a single adapter function instead of re-implementing the DB query logic with nested try-catch. Tests: Add config consistency test, note that fetchExistingEmbeddingHashes tests require native module (run in CI). Agent-Logs-Url: https://github.com/abhigyanpatwari/GitNexus/sessions/b8c4f6b0-4095-4507-a15d-d8469793efac Co-authored-by: magyargergo <11230420+magyargergo@users.noreply.github.com> * fix: narrow Column error match to 'contentHash' in lbug-adapter fallback checks Agent-Logs-Url: https://github.com/abhigyanpatwari/GitNexus/sessions/b8c4f6b0-4095-4507-a15d-d8469793efac Co-authored-by: magyargergo <11230420+magyargergo@users.noreply.github.com> * fix: address production-readiness review — eliminate competing state, use schema constants, hard-fail on stale DELETE, add incremental filter tests Gap A / Arch Violation 1: Remove duplicate vectorExtensionLoaded flag from embedding-pipeline.ts — delegate to lbug-adapter's loadVectorExtension() which owns the VECTOR extension lifecycle and resets on DB reconnect. Arch Violation 2: Replace all hardcoded 'CodeEmbedding' and 'code_embedding_idx' strings in embedding-pipeline.ts and run-analyze.ts with EMBEDDING_TABLE_NAME, EMBEDDING_INDEX_NAME, and CREATE_VECTOR_INDEX_QUERY imported from schema.ts. Add EMBEDDING_INDEX_NAME export to schema.ts. Gap B: Make DELETE failure for stale vectors a hard throw (not just a warning). Continuing after failed DELETE risks Kuzu vector-index corruption since the constraint requires DELETE-before-INSERT for vector-indexed properties. "not found" / "does not exist" errors are still safe to ignore. STALE_HASH_SENTINEL: Define a named constant in embedding types.ts for the empty-string sentinel convention. Used consistently in lbug-adapter.ts and run-analyze.ts so the invariant is self-documenting. Tests: Add comprehensive unit tests for the incremental filter logic with mocked embedder: - New node → embedded - Unchanged node (hash matches) → skipped - Stale node (hash mismatch) → DELETE + re-embed - STALE_HASH_SENTINEL → treated as stale - Zero nodes after filter → createVectorIndex still called - DELETE failure with non-trivial error → throws Agent-Logs-Url: https://github.com/abhigyanpatwari/GitNexus/sessions/b21edee7-c9c5-4742-947b-d0def4fb26aa Co-authored-by: magyargergo <11230420+magyargergo@users.noreply.github.com> * fix: tighten error classification — extract isMissingColumnOrTableError helper, remove broad pattern matching - Extract isMissingColumnOrTableError() helper in lbug-adapter for consistent schema-error detection (replaces duplicate inline checks) - Tighten 'contentHash' match: now requires 'property' AND 'contentHash' (Kuzu-specific pattern) instead of broad 'contentHash' substring - Tighten DELETE error check: only ignore 'does not exist' (Kuzu's actual message), not broad 'not found' which could mask connection errors - Fix test node ID/name/filePath consistency Agent-Logs-Url: https://github.com/abhigyanpatwari/GitNexus/sessions/b21edee7-c9c5-4742-947b-d0def4fb26aa Co-authored-by: magyargergo <11230420+magyargergo@users.noreply.github.com> * fix: CI failures and final review — move STALE_HASH_SENTINEL to schema, tighten error matching, fix test mocking, format - Move STALE_HASH_SENTINEL from embeddings/types.ts to lbug/schema.ts (fixes inverted layer dependency: lbug should not import from embeddings) - Tighten isMissingColumnOrTableError: replace broad msg.includes('not found') with /(table|column|property).*not found/i regex to avoid matching transient errors - Add vi.resetModules() in test beforeEach for explicit module isolation (fixes vi.doMock not intercepting loadVectorExtension in CI) - Skip precomputedHashes.set() on unchanged (return false) path - Run prettier on all 5 files flagged by CI format check Agent-Logs-Url: https://github.com/abhigyanpatwari/GitNexus/sessions/e20311fd-4361-47b4-a137-9adc3e533b35 * fix: address remaining review nits — rename precomputedHashes, generalize error matcher, revert package-lock - Rename precomputedHashes → computedStaleHashes (hashes are computed on-demand during filter, only cached for stale nodes being re-embedded) - Remove contentHash-specific clause from isMissingColumnOrTableError — the regex /(table|column|property).*not found/i already covers it - Revert package-lock.json ssh→https protocol change Agent-Logs-Url: https://github.com/abhigyanpatwari/GitNexus/sessions/e20311fd-4361-47b4-a137-9adc3e533b35 --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: magyargergo <11230420+magyargergo@users.noreply.github.com>	2026-04-15 11:20:48 +01:00