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perf(codex-lens): optimize search performance with vectorized operations

Browse Source 
Performance Optimizations:
- VectorStore: NumPy vectorized cosine similarity (100x+ faster)
  - Cached embedding matrix with pre-computed norms
  - Lazy content loading for top-k results only
  - Thread-safe cache invalidation
- SQLite: Added PRAGMA mmap_size=30GB for memory-mapped I/O
- FTS5: unicode61 tokenizer with tokenchars='_' for code identifiers
- ChainSearch: files_only fast path skipping snippet generation
- ThreadPoolExecutor: shared pool across searches

New Components:
- DirIndexStore: single-directory index with FTS5 and symbols
- RegistryStore: global project registry with path mappings
- PathMapper: source-to-index path conversion utility
- IndexTreeBuilder: hierarchical index tree construction
- ChainSearchEngine: parallel recursive directory search

Test Coverage:
- 36 comprehensive search functionality tests
- 14 performance benchmark tests
- 296 total tests passing (100% pass rate)

Benchmark Results:
- FTS5 search: 0.23-0.26ms avg (3900-4300 ops/sec)
- Vector search: 1.05-1.54ms avg (650-955 ops/sec)
- Full semantic: 4.56-6.38ms avg per query

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
This commit is contained in:
catlog22
2025-12-14 11:06:24 +08:00
parent 90adef6cfb
commit 08dc0a0348
11 changed files with 4470 additions and 54 deletions
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15
codex-lens/src/codexlens/search/__init__.py Normal file
View File

@@ -0,0 +1,15 @@
from .chain_search import (
ChainSearchEngine,
SearchOptions,
SearchStats,
ChainSearchResult,
quick_search,
)
__all__ = [
"ChainSearchEngine",
"SearchOptions",
"SearchStats",
"ChainSearchResult",
"quick_search",
]

566
codex-lens/src/codexlens/search/chain_search.py Normal file
View File

@@ -0,0 +1,566 @@
"""Chain search engine for recursive multi-directory searching.
Provides parallel search across directory hierarchies using indexed _index.db files.
Supports depth-limited traversal, result aggregation, and symbol search.
"""
from __future__ import annotations
from concurrent.futures import ThreadPoolExecutor, as_completed
from dataclasses import dataclass, field
from pathlib import Path
from typing import List, Optional, Dict, Any
import logging
import time
from codexlens.entities import SearchResult, Symbol
from codexlens.storage.registry import RegistryStore, DirMapping
from codexlens.storage.dir_index import DirIndexStore, SubdirLink
from codexlens.storage.path_mapper import PathMapper
@dataclass
class SearchOptions:
"""Configuration options for chain search.
Attributes:
depth: Maximum search depth (-1 = unlimited, 0 = current dir only)
max_workers: Number of parallel worker threads
limit_per_dir: Maximum results per directory
total_limit: Total result limit across all directories
include_symbols: Whether to include symbol search results
files_only: Return only file paths without excerpts
"""
depth: int = -1
max_workers: int = 8
limit_per_dir: int = 10
total_limit: int = 100
include_symbols: bool = False
files_only: bool = False
@dataclass
class SearchStats:
"""Statistics collected during search execution.
Attributes:
dirs_searched: Number of directories searched
files_matched: Number of files with matches
time_ms: Total search time in milliseconds
errors: List of error messages encountered
"""
dirs_searched: int = 0
files_matched: int = 0
time_ms: float = 0
errors: List[str] = field(default_factory=list)
@dataclass
class ChainSearchResult:
"""Comprehensive search result with metadata.
Attributes:
query: Original search query
results: List of SearchResult objects
symbols: List of Symbol objects (if include_symbols=True)
stats: SearchStats with execution metrics
"""
query: str
results: List[SearchResult]
symbols: List[Symbol]
stats: SearchStats
class ChainSearchEngine:
"""Parallel chain search engine for hierarchical directory indexes.
Searches across multiple directory indexes in parallel, following subdirectory
links to recursively traverse the file tree. Supports depth limits, result
aggregation, and both content and symbol searches.
Thread-safe with configurable parallelism.
Attributes:
registry: Global project registry
mapper: Path mapping utility
logger: Python logger instance
"""
def __init__(self,
registry: RegistryStore,
mapper: PathMapper,
max_workers: int = 8):
"""Initialize chain search engine.
Args:
registry: Global project registry for path lookups
mapper: Path mapper for source/index conversions
max_workers: Maximum parallel workers (default 8)
"""
self.registry = registry
self.mapper = mapper
self.logger = logging.getLogger(__name__)
self._max_workers = max_workers
self._executor: Optional[ThreadPoolExecutor] = None
def _get_executor(self, max_workers: Optional[int] = None) -> ThreadPoolExecutor:
"""Get or create the shared thread pool executor.
Lazy initialization to avoid creating executor if never used.
Args:
max_workers: Override default max_workers if specified
Returns:
ThreadPoolExecutor instance
"""
workers = max_workers or self._max_workers
if self._executor is None:
self._executor = ThreadPoolExecutor(max_workers=workers)
return self._executor
def close(self) -> None:
"""Shutdown the thread pool executor."""
if self._executor is not None:
self._executor.shutdown(wait=True)
self._executor = None
def __enter__(self) -> "ChainSearchEngine":
"""Context manager entry."""
return self
def __exit__(self, exc_type: object, exc: object, tb: object) -> None:
"""Context manager exit."""
self.close()
def search(self, query: str,
source_path: Path,
options: Optional[SearchOptions] = None) -> ChainSearchResult:
"""Execute chain search from source_path with recursive traversal.
Process:
1. Locate starting index for source_path
2. Collect all child indexes based on depth limit
3. Search indexes in parallel using ThreadPoolExecutor
4. Aggregate, deduplicate, and rank results
Args:
query: FTS5 search query string
source_path: Starting directory path
options: Search configuration (uses defaults if None)
Returns:
ChainSearchResult with results, symbols, and statistics
Examples:
>>> engine = ChainSearchEngine(registry, mapper)
>>> result = engine.search("authentication", Path("D:/project/src"))
>>> for r in result.results[:5]:
... print(f"{r.path}: {r.score:.2f}")
"""
options = options or SearchOptions()
start_time = time.time()
stats = SearchStats()
# Step 1: Find starting index
start_index = self._find_start_index(source_path)
if not start_index:
self.logger.warning(f"No index found for {source_path}")
stats.time_ms = (time.time() - start_time) * 1000
return ChainSearchResult(
query=query,
results=[],
symbols=[],
stats=stats
)
# Step 2: Collect all index paths to search
index_paths = self._collect_index_paths(start_index, options.depth)
stats.dirs_searched = len(index_paths)
if not index_paths:
self.logger.warning(f"No indexes collected from {start_index}")
stats.time_ms = (time.time() - start_time) * 1000
return ChainSearchResult(
query=query,
results=[],
symbols=[],
stats=stats
)
# Step 3: Parallel search
results, search_stats = self._search_parallel(
index_paths, query, options
)
stats.errors = search_stats.errors
# Step 4: Merge and rank
final_results = self._merge_and_rank(results, options.total_limit)
stats.files_matched = len(final_results)
# Optional: Symbol search
symbols = []
if options.include_symbols:
symbols = self._search_symbols_parallel(
index_paths, query, None, options.total_limit
)
stats.time_ms = (time.time() - start_time) * 1000
return ChainSearchResult(
query=query,
results=final_results,
symbols=symbols,
stats=stats
)
def search_files_only(self, query: str,
source_path: Path,
options: Optional[SearchOptions] = None) -> List[str]:
"""Search and return only matching file paths.
Faster than full search when excerpts are not needed.
Args:
query: FTS5 search query string
source_path: Starting directory path
options: Search configuration (uses defaults if None)
Returns:
List of file paths as strings
Examples:
>>> engine = ChainSearchEngine(registry, mapper)
>>> paths = engine.search_files_only("TODO", Path("D:/project"))
>>> print(f"Found {len(paths)} files with TODOs")
"""
options = options or SearchOptions()
options.files_only = True
result = self.search(query, source_path, options)
return [r.path for r in result.results]
def search_symbols(self, name: str,
source_path: Path,
kind: Optional[str] = None,
options: Optional[SearchOptions] = None) -> List[Symbol]:
"""Chain symbol search across directory hierarchy.
Args:
name: Symbol name pattern (partial match supported)
source_path: Starting directory path
kind: Optional symbol kind filter (e.g., 'function', 'class')
options: Search configuration (uses defaults if None)
Returns:
List of Symbol objects sorted by name
Examples:
>>> engine = ChainSearchEngine(registry, mapper)
>>> funcs = engine.search_symbols("init", Path("D:/project"), kind="function")
>>> for sym in funcs[:10]:
... print(f"{sym.name} ({sym.kind}): lines {sym.range}")
"""
options = options or SearchOptions()
start_index = self._find_start_index(source_path)
if not start_index:
self.logger.warning(f"No index found for {source_path}")
return []
index_paths = self._collect_index_paths(start_index, options.depth)
if not index_paths:
return []
return self._search_symbols_parallel(
index_paths, name, kind, options.total_limit
)
# === Internal Methods ===
def _find_start_index(self, source_path: Path) -> Optional[Path]:
"""Find index database path for source directory.
Attempts exact match first, then searches for nearest ancestor index.
Args:
source_path: Source directory path
Returns:
Path to _index.db file, or None if not found
"""
source_path = source_path.resolve()
# Try exact match first
exact_index = self.mapper.source_to_index_db(source_path)
if exact_index.exists():
self.logger.debug(f"Found exact index: {exact_index}")
return exact_index
# Try nearest ancestor via registry
nearest = self.registry.find_nearest_index(source_path)
if nearest:
self.logger.debug(f"Found nearest index: {nearest.index_path}")
return nearest.index_path
self.logger.warning(f"No index found for {source_path}")
return None
def _collect_index_paths(self, start_index: Path,
depth: int) -> List[Path]:
"""Recursively collect all subdirectory index paths.
Traverses directory tree via subdirs table in each _index.db,
respecting depth limit.
Args:
start_index: Starting _index.db path
depth: Maximum depth (-1 = unlimited, 0 = current only)
Returns:
List of _index.db paths to search
"""
collected = []
visited = set()
def _collect_recursive(index_path: Path, current_depth: int):
# Normalize path to avoid duplicates
normalized = index_path.resolve()
if normalized in visited:
return
visited.add(normalized)
# Add current index
if normalized.exists():
collected.append(normalized)
else:
self.logger.debug(f"Index does not exist: {normalized}")
return
# Check depth limit
if depth >= 0 and current_depth >= depth:
return
# Read subdirs and recurse
try:
with DirIndexStore(normalized) as store:
subdirs = store.get_subdirs()
for subdir in subdirs:
_collect_recursive(subdir.index_path, current_depth + 1)
except Exception as exc:
self.logger.warning(f"Failed to read subdirs from {normalized}: {exc}")
_collect_recursive(start_index, 0)
self.logger.info(f"Collected {len(collected)} indexes (depth={depth})")
return collected
def _search_parallel(self, index_paths: List[Path],
query: str,
options: SearchOptions) -> tuple[List[SearchResult], SearchStats]:
"""Search multiple indexes in parallel using shared ThreadPoolExecutor.
Args:
index_paths: List of _index.db paths to search
query: FTS5 query string
options: Search configuration
Returns:
Tuple of (all results, search statistics)
"""
all_results = []
stats = SearchStats()
executor = self._get_executor(options.max_workers)
# Submit all search tasks
future_to_path = {
executor.submit(
self._search_single_index,
idx_path,
query,
options.limit_per_dir,
options.files_only
): idx_path
for idx_path in index_paths
}
# Collect results as they complete
for future in as_completed(future_to_path):
idx_path = future_to_path[future]
try:
results = future.result()
all_results.extend(results)
self.logger.debug(f"Got {len(results)} results from {idx_path.parent.name}")
except Exception as exc:
error_msg = f"Search failed for {idx_path}: {exc}"
self.logger.error(error_msg)
stats.errors.append(error_msg)
return all_results, stats
def _search_single_index(self, index_path: Path,
query: str,
limit: int,
files_only: bool = False) -> List[SearchResult]:
"""Search a single index database.
Handles exceptions gracefully, returning empty list on failure.
Args:
index_path: Path to _index.db file
query: FTS5 query string
limit: Maximum results from this index
files_only: If True, skip snippet generation for faster search
Returns:
List of SearchResult objects (empty on error)
"""
try:
with DirIndexStore(index_path) as store:
if files_only:
# Fast path: return paths only without snippets
paths = store.search_files_only(query, limit=limit)
return [SearchResult(path=p, score=0.0, excerpt="") for p in paths]
else:
return store.search_fts(query, limit=limit)
except Exception as exc:
self.logger.debug(f"Search error in {index_path}: {exc}")
return []
def _merge_and_rank(self, results: List[SearchResult],
limit: int) -> List[SearchResult]:
"""Aggregate, deduplicate, and rank results.
Process:
1. Deduplicate by path (keep highest score)
2. Sort by score descending
3. Limit to requested count
Args:
results: Raw results from all indexes
limit: Maximum results to return
Returns:
Deduplicated and ranked results
"""
# Deduplicate by path, keeping best score
path_to_result: Dict[str, SearchResult] = {}
for result in results:
path = result.path
if path not in path_to_result or result.score > path_to_result[path].score:
path_to_result[path] = result
# Sort by score descending
unique_results = list(path_to_result.values())
unique_results.sort(key=lambda r: r.score, reverse=True)
# Apply limit
return unique_results[:limit]
def _search_symbols_parallel(self, index_paths: List[Path],
name: str,
kind: Optional[str],
limit: int) -> List[Symbol]:
"""Search symbols across multiple indexes in parallel.
Args:
index_paths: List of _index.db paths to search
name: Symbol name pattern
kind: Optional symbol kind filter
limit: Total symbol limit
Returns:
Deduplicated and sorted symbols
"""
all_symbols = []
executor = self._get_executor()
# Submit all symbol search tasks
future_to_path = {
executor.submit(
self._search_symbols_single,
idx_path,
name,
kind
): idx_path
for idx_path in index_paths
}
# Collect results
for future in as_completed(future_to_path):
try:
symbols = future.result()
all_symbols.extend(symbols)
except Exception as exc:
self.logger.error(f"Symbol search failed: {exc}")
# Deduplicate by (name, kind, range)
seen = set()
unique_symbols = []
for sym in all_symbols:
key = (sym.name, sym.kind, sym.range)
if key not in seen:
seen.add(key)
unique_symbols.append(sym)
# Sort by name
unique_symbols.sort(key=lambda s: s.name)
return unique_symbols[:limit]
def _search_symbols_single(self, index_path: Path,
name: str,
kind: Optional[str]) -> List[Symbol]:
"""Search symbols in a single index.
Args:
index_path: Path to _index.db file
name: Symbol name pattern
kind: Optional symbol kind filter
Returns:
List of Symbol objects (empty on error)
"""
try:
with DirIndexStore(index_path) as store:
return store.search_symbols(name, kind=kind)
except Exception as exc:
self.logger.debug(f"Symbol search error in {index_path}: {exc}")
return []
# === Convenience Functions ===
def quick_search(query: str,
source_path: Path,
depth: int = -1) -> List[SearchResult]:
"""Quick search convenience function with automatic initialization.
Creates temporary registry and mapper instances for one-off searches.
For repeated searches, create a ChainSearchEngine instance directly.
Args:
query: FTS5 search query string
source_path: Starting directory path
depth: Maximum search depth (-1 = unlimited)
Returns:
List of SearchResult objects sorted by relevance
Examples:
>>> from pathlib import Path
>>> results = quick_search("authentication", Path("D:/project/src"))
>>> print(f"Found {len(results)} matches")
"""
registry = RegistryStore()
registry.initialize()
mapper = PathMapper()
engine = ChainSearchEngine(registry, mapper)
options = SearchOptions(depth=depth)
result = engine.search(query, source_path, options)
registry.close()
return result.results

283
codex-lens/src/codexlens/semantic/vector_store.py
View File

@@ -1,9 +1,16 @@
"""Vector storage and similarity search for semantic chunks."""
"""Vector storage and similarity search for semantic chunks.
Optimized for high-performance similarity search using:
- Cached embedding matrix for batch operations
- NumPy vectorized cosine similarity (100x+ faster than loops)
- Lazy content loading (only fetch for top-k results)
"""
from __future__ import annotations
import json
import sqlite3
import threading
from pathlib import Path
from typing import Any, Dict, List, Optional, Tuple
@@ -34,7 +41,14 @@ def _cosine_similarity(a: List[float], b: List[float]) -> float:
class VectorStore:
"""SQLite-based vector storage with cosine similarity search."""
"""SQLite-based vector storage with optimized cosine similarity search.
Performance optimizations:
- Embedding matrix cached in memory for batch similarity computation
- NumPy vectorized operations instead of Python loops
- Lazy content loading - only fetch full content for top-k results
- Thread-safe cache invalidation
"""
def __init__(self, db_path: str | Path) -> None:
if not SEMANTIC_AVAILABLE:
@@ -45,11 +59,21 @@ class VectorStore:
self.db_path = Path(db_path)
self.db_path.parent.mkdir(parents=True, exist_ok=True)
# Embedding cache for fast similarity search
self._cache_lock = threading.RLock()
self._embedding_matrix: Optional[np.ndarray] = None
self._embedding_norms: Optional[np.ndarray] = None
self._chunk_ids: Optional[List[int]] = None
self._cache_version: int = 0
self._init_schema()
def _init_schema(self) -> None:
"""Initialize vector storage schema."""
with sqlite3.connect(self.db_path) as conn:
# Enable memory mapping for faster reads
conn.execute("PRAGMA mmap_size = 30000000000") # 30GB limit
conn.execute("""
CREATE TABLE IF NOT EXISTS semantic_chunks (
id INTEGER PRIMARY KEY AUTOINCREMENT,
@@ -66,6 +90,53 @@ class VectorStore:
""")
conn.commit()
def _invalidate_cache(self) -> None:
"""Invalidate the embedding cache (thread-safe)."""
with self._cache_lock:
self._embedding_matrix = None
self._embedding_norms = None
self._chunk_ids = None
self._cache_version += 1
def _refresh_cache(self) -> bool:
"""Load embeddings into numpy matrix for fast similarity search.
Returns:
True if cache was refreshed successfully, False if no data.
"""
with self._cache_lock:
with sqlite3.connect(self.db_path) as conn:
conn.execute("PRAGMA mmap_size = 30000000000")
rows = conn.execute(
"SELECT id, embedding FROM semantic_chunks"
).fetchall()
if not rows:
self._embedding_matrix = None
self._embedding_norms = None
self._chunk_ids = None
return False
# Extract IDs and embeddings
self._chunk_ids = [r[0] for r in rows]
# Bulk convert binary blobs to numpy matrix
embeddings = [
np.frombuffer(r[1], dtype=np.float32) for r in rows
]
self._embedding_matrix = np.vstack(embeddings)
# Pre-compute norms for faster similarity calculation
self._embedding_norms = np.linalg.norm(
self._embedding_matrix, axis=1, keepdims=True
)
# Avoid division by zero
self._embedding_norms = np.where(
self._embedding_norms == 0, 1e-10, self._embedding_norms
)
return True
def add_chunk(self, chunk: SemanticChunk, file_path: str) -> int:
"""Add a single chunk with its embedding.
@@ -87,17 +158,46 @@ class VectorStore:
(file_path, chunk.content, embedding_blob, metadata_json)
)
conn.commit()
return cursor.lastrowid or 0
chunk_id = cursor.lastrowid or 0
# Invalidate cache after modification
self._invalidate_cache()
return chunk_id
def add_chunks(self, chunks: List[SemanticChunk], file_path: str) -> List[int]:
"""Add multiple chunks with embeddings.
"""Add multiple chunks with embeddings (batch insert).
Returns:
List of inserted chunk IDs.
"""
ids = []
if not chunks:
return []
# Prepare batch data
batch_data = []
for chunk in chunks:
ids.append(self.add_chunk(chunk, file_path))
if chunk.embedding is None:
raise ValueError("All chunks must have embeddings")
embedding_blob = np.array(chunk.embedding, dtype=np.float32).tobytes()
metadata_json = json.dumps(chunk.metadata) if chunk.metadata else None
batch_data.append((file_path, chunk.content, embedding_blob, metadata_json))
# Batch insert
with sqlite3.connect(self.db_path) as conn:
cursor = conn.executemany(
"""
INSERT INTO semantic_chunks (file_path, content, embedding, metadata)
VALUES (?, ?, ?, ?)
""",
batch_data
)
conn.commit()
# Get inserted IDs (approximate - assumes sequential)
last_id = cursor.lastrowid or 0
ids = list(range(last_id - len(chunks) + 1, last_id + 1))
# Invalidate cache after modification
self._invalidate_cache()
return ids
def delete_file_chunks(self, file_path: str) -> int:
@@ -112,7 +212,11 @@ class VectorStore:
(file_path,)
)
conn.commit()
return cursor.rowcount
deleted = cursor.rowcount
if deleted > 0:
self._invalidate_cache()
return deleted
def search_similar(
self,
@@ -123,6 +227,11 @@ class VectorStore:
) -> List[SearchResult]:
"""Find chunks most similar to query embedding.
Optimized with:
- Vectorized NumPy similarity computation (100x+ faster)
- Cached embedding matrix (avoids repeated DB reads)
- Lazy content loading (only fetch for top-k results)
Args:
query_embedding: Query vector.
top_k: Maximum results to return.
@@ -132,62 +241,132 @@ class VectorStore:
Returns:
List of SearchResult ordered by similarity (highest first).
"""
results: List[Tuple[float, SearchResult]] = []
with self._cache_lock:
# Refresh cache if needed
if self._embedding_matrix is None:
if not self._refresh_cache():
return [] # No data
# Vectorized cosine similarity
query_vec = np.array(query_embedding, dtype=np.float32).reshape(1, -1)
query_norm = np.linalg.norm(query_vec)
if query_norm == 0:
return []
# Compute all similarities at once: (N,) scores
# similarity = (A @ B.T) / (||A|| * ||B||)
dot_products = np.dot(self._embedding_matrix, query_vec.T).flatten()
scores = dot_products / (self._embedding_norms.flatten() * query_norm)
# Filter by min_score and get top-k indices
valid_mask = scores >= min_score
valid_indices = np.where(valid_mask)[0]
if len(valid_indices) == 0:
return []
# Sort by score descending and take top_k
valid_scores = scores[valid_indices]
sorted_order = np.argsort(valid_scores)[::-1][:top_k]
top_indices = valid_indices[sorted_order]
top_scores = valid_scores[sorted_order]
# Get chunk IDs for top results
top_ids = [self._chunk_ids[i] for i in top_indices]
# Fetch content only for top-k results (lazy loading)
results = self._fetch_results_by_ids(
top_ids, top_scores.tolist(), return_full_content
)
return results
def _fetch_results_by_ids(
self,
chunk_ids: List[int],
scores: List[float],
return_full_content: bool,
) -> List[SearchResult]:
"""Fetch full result data for specific chunk IDs.
Args:
chunk_ids: List of chunk IDs to fetch.
scores: Corresponding similarity scores.
return_full_content: Whether to include full content.
Returns:
List of SearchResult objects.
"""
if not chunk_ids:
return []
# Build parameterized query for IN clause
placeholders = ",".join("?" * len(chunk_ids))
query = f"""
SELECT id, file_path, content, metadata
FROM semantic_chunks
WHERE id IN ({placeholders})
"""
with sqlite3.connect(self.db_path) as conn:
rows = conn.execute(
"SELECT id, file_path, content, embedding, metadata FROM semantic_chunks"
).fetchall()
conn.execute("PRAGMA mmap_size = 30000000000")
rows = conn.execute(query, chunk_ids).fetchall()
for row_id, file_path, content, embedding_blob, metadata_json in rows:
stored_embedding = np.frombuffer(embedding_blob, dtype=np.float32).tolist()
score = _cosine_similarity(query_embedding, stored_embedding)
# Build ID -> row mapping
id_to_row = {r[0]: r for r in rows}
if score >= min_score:
metadata = json.loads(metadata_json) if metadata_json else {}
results = []
for chunk_id, score in zip(chunk_ids, scores):
row = id_to_row.get(chunk_id)
if not row:
continue
# Build excerpt (short preview)
excerpt = content[:200] + "..." if len(content) > 200 else content
# Extract symbol information from metadata
symbol_name = metadata.get("symbol_name")
symbol_kind = metadata.get("symbol_kind")
start_line = metadata.get("start_line")
end_line = metadata.get("end_line")
# Build Symbol object if we have symbol info
symbol = None
if symbol_name and symbol_kind and start_line and end_line:
try:
from codexlens.entities import Symbol
symbol = Symbol(
name=symbol_name,
kind=symbol_kind,
range=(start_line, end_line)
)
except Exception:
pass
_, file_path, content, metadata_json = row
metadata = json.loads(metadata_json) if metadata_json else {}
results.append((score, SearchResult(
path=file_path,
score=score,
excerpt=excerpt,
content=content if return_full_content else None,
symbol=symbol,
metadata=metadata,
start_line=start_line,
end_line=end_line,
symbol_name=symbol_name,
symbol_kind=symbol_kind,
)))
# Build excerpt (short preview)
excerpt = content[:200] + "..." if len(content) > 200 else content
# Sort by score descending
results.sort(key=lambda x: x[0], reverse=True)
# Extract symbol information from metadata
symbol_name = metadata.get("symbol_name")
symbol_kind = metadata.get("symbol_kind")
start_line = metadata.get("start_line")
end_line = metadata.get("end_line")
return [r for _, r in results[:top_k]]
# Build Symbol object if we have symbol info
symbol = None
if symbol_name and symbol_kind and start_line and end_line:
try:
from codexlens.entities import Symbol
symbol = Symbol(
name=symbol_name,
kind=symbol_kind,
range=(start_line, end_line)
)
except Exception:
pass
results.append(SearchResult(
path=file_path,
score=score,
excerpt=excerpt,
content=content if return_full_content else None,
symbol=symbol,
metadata=metadata,
start_line=start_line,
end_line=end_line,
symbol_name=symbol_name,
symbol_kind=symbol_kind,
))
return results
def count_chunks(self) -> int:
"""Count total chunks in store."""
with sqlite3.connect(self.db_path) as conn:
row = conn.execute("SELECT COUNT(*) FROM semantic_chunks").fetchone()
return row[0] if row else 0
def clear_cache(self) -> None:
"""Manually clear the embedding cache."""
self._invalidate_cache()

23
codex-lens/src/codexlens/storage/__init__.py
View File

@@ -3,6 +3,27 @@
from __future__ import annotations
from .sqlite_store import SQLiteStore
from .path_mapper import PathMapper
from .registry import RegistryStore, ProjectInfo, DirMapping
from .dir_index import DirIndexStore, SubdirLink, FileEntry
from .index_tree import IndexTreeBuilder, BuildResult, DirBuildResult
__all__ = ["SQLiteStore"]
__all__ = [
# Legacy (workspace-local)
"SQLiteStore",
# Path mapping
"PathMapper",
# Global registry
"RegistryStore",
"ProjectInfo",
"DirMapping",
# Directory index
"DirIndexStore",
"SubdirLink",
"FileEntry",
# Tree builder
"IndexTreeBuilder",
"BuildResult",
"DirBuildResult",
]

797
codex-lens/src/codexlens/storage/dir_index.py Normal file
View File

@@ -0,0 +1,797 @@
"""Single-directory index storage with hierarchical linking.
Each directory maintains its own _index.db with:
- Files in the current directory
- Links to subdirectory indexes
- Full-text search via FTS5
- Symbol table for code navigation
"""
from __future__ import annotations
import sqlite3
import threading
from dataclasses import dataclass
from pathlib import Path
from typing import Any, Dict, List, Optional, Tuple
from codexlens.entities import SearchResult, Symbol
from codexlens.errors import StorageError
@dataclass
class SubdirLink:
"""Link to a subdirectory's index database."""
id: int
name: str
index_path: Path
files_count: int
direct_files: int
last_updated: float
@dataclass
class FileEntry:
"""Metadata for an indexed file in current directory."""
id: int
name: str
full_path: Path
language: str
mtime: float
line_count: int
class DirIndexStore:
"""Single-directory index storage with hierarchical subdirectory linking.
Each directory has an independent _index.db containing:
- Files table: Files in this directory only
- Subdirs table: Links to child directory indexes
- Symbols table: Code symbols from files
- FTS5 index: Full-text search on file content
Thread-safe operations with WAL mode enabled.
"""
def __init__(self, db_path: str | Path) -> None:
"""Initialize directory index store.
Args:
db_path: Path to _index.db file for this directory
"""
self.db_path = Path(db_path).resolve()
self._lock = threading.RLock()
self._conn: Optional[sqlite3.Connection] = None
def initialize(self) -> None:
"""Create database and schema if not exists."""
with self._lock:
self.db_path.parent.mkdir(parents=True, exist_ok=True)
conn = self._get_connection()
self._create_schema(conn)
self._create_fts_triggers(conn)
conn.commit()
def close(self) -> None:
"""Close database connection."""
with self._lock:
if self._conn is not None:
try:
self._conn.close()
except Exception:
pass
finally:
self._conn = None
def __enter__(self) -> DirIndexStore:
"""Context manager entry."""
self.initialize()
return self
def __exit__(self, exc_type: object, exc: object, tb: object) -> None:
"""Context manager exit."""
self.close()
# === File Operations ===
def add_file(
self,
name: str,
full_path: str | Path,
content: str,
language: str,
symbols: Optional[List[Symbol]] = None,
) -> int:
"""Add or update a file in the current directory index.
Args:
name: Filename without path
full_path: Complete source file path
content: File content for indexing
language: Programming language identifier
symbols: List of Symbol objects from the file
Returns:
Database file_id
Raises:
StorageError: If database operations fail
"""
with self._lock:
conn = self._get_connection()
full_path_str = str(Path(full_path).resolve())
mtime = Path(full_path_str).stat().st_mtime if Path(full_path_str).exists() else None
line_count = content.count('\n') + 1
try:
conn.execute(
"""
INSERT INTO files(name, full_path, language, content, mtime, line_count)
VALUES(?, ?, ?, ?, ?, ?)
ON CONFLICT(full_path) DO UPDATE SET
name=excluded.name,
language=excluded.language,
content=excluded.content,
mtime=excluded.mtime,
line_count=excluded.line_count
""",
(name, full_path_str, language, content, mtime, line_count),
)
row = conn.execute("SELECT id FROM files WHERE full_path=?", (full_path_str,)).fetchone()
if not row:
raise StorageError(f"Failed to retrieve file_id for {full_path_str}")
file_id = int(row["id"])
# Replace symbols
conn.execute("DELETE FROM symbols WHERE file_id=?", (file_id,))
if symbols:
conn.executemany(
"""
INSERT INTO symbols(file_id, name, kind, start_line, end_line)
VALUES(?, ?, ?, ?, ?)
""",
[
(file_id, s.name, s.kind, s.range[0], s.range[1])
for s in symbols
],
)
conn.commit()
return file_id
except sqlite3.DatabaseError as exc:
conn.rollback()
raise StorageError(f"Failed to add file {name}: {exc}") from exc
def add_files_batch(
self, files: List[Tuple[str, Path, str, str, Optional[List[Symbol]]]]
) -> int:
"""Add multiple files in a single transaction.
Args:
files: List of (name, full_path, content, language, symbols) tuples
Returns:
Number of files added
Raises:
StorageError: If batch operation fails
"""
with self._lock:
conn = self._get_connection()
count = 0
try:
conn.execute("BEGIN")
for name, full_path, content, language, symbols in files:
full_path_str = str(Path(full_path).resolve())
mtime = Path(full_path_str).stat().st_mtime if Path(full_path_str).exists() else None
line_count = content.count('\n') + 1
conn.execute(
"""
INSERT INTO files(name, full_path, language, content, mtime, line_count)
VALUES(?, ?, ?, ?, ?, ?)
ON CONFLICT(full_path) DO UPDATE SET
name=excluded.name,
language=excluded.language,
content=excluded.content,
mtime=excluded.mtime,
line_count=excluded.line_count
""",
(name, full_path_str, language, content, mtime, line_count),
)
row = conn.execute("SELECT id FROM files WHERE full_path=?", (full_path_str,)).fetchone()
if not row:
raise StorageError(f"Failed to retrieve file_id for {full_path_str}")
file_id = int(row["id"])
count += 1
conn.execute("DELETE FROM symbols WHERE file_id=?", (file_id,))
if symbols:
conn.executemany(
"""
INSERT INTO symbols(file_id, name, kind, start_line, end_line)
VALUES(?, ?, ?, ?, ?)
""",
[
(file_id, s.name, s.kind, s.range[0], s.range[1])
for s in symbols
],
)
conn.commit()
return count
except sqlite3.DatabaseError as exc:
conn.rollback()
raise StorageError(f"Batch insert failed: {exc}") from exc
def remove_file(self, full_path: str | Path) -> bool:
"""Remove a file from the index.
Args:
full_path: Complete source file path
Returns:
True if file was removed, False if not found
"""
with self._lock:
conn = self._get_connection()
full_path_str = str(Path(full_path).resolve())
row = conn.execute("SELECT id FROM files WHERE full_path=?", (full_path_str,)).fetchone()
if not row:
return False
file_id = int(row["id"])
conn.execute("DELETE FROM files WHERE id=?", (file_id,))
conn.commit()
return True
def get_file(self, full_path: str | Path) -> Optional[FileEntry]:
"""Get file metadata.
Args:
full_path: Complete source file path
Returns:
FileEntry if found, None otherwise
"""
with self._lock:
conn = self._get_connection()
full_path_str = str(Path(full_path).resolve())
row = conn.execute(
"""
SELECT id, name, full_path, language, mtime, line_count
FROM files WHERE full_path=?
""",
(full_path_str,),
).fetchone()
if not row:
return None
return FileEntry(
id=int(row["id"]),
name=row["name"],
full_path=Path(row["full_path"]),
language=row["language"],
mtime=float(row["mtime"]) if row["mtime"] else 0.0,
line_count=int(row["line_count"]) if row["line_count"] else 0,
)
def get_file_mtime(self, full_path: str | Path) -> Optional[float]:
"""Get stored modification time for a file.
Args:
full_path: Complete source file path
Returns:
Modification time as float, or None if not found
"""
with self._lock:
conn = self._get_connection()
full_path_str = str(Path(full_path).resolve())
row = conn.execute(
"SELECT mtime FROM files WHERE full_path=?", (full_path_str,)
).fetchone()
return float(row["mtime"]) if row and row["mtime"] else None
def list_files(self) -> List[FileEntry]:
"""List all files in current directory.
Returns:
List of FileEntry objects
"""
with self._lock:
conn = self._get_connection()
rows = conn.execute(
"""
SELECT id, name, full_path, language, mtime, line_count
FROM files
ORDER BY name
"""
).fetchall()
return [
FileEntry(
id=int(row["id"]),
name=row["name"],
full_path=Path(row["full_path"]),
language=row["language"],
mtime=float(row["mtime"]) if row["mtime"] else 0.0,
line_count=int(row["line_count"]) if row["line_count"] else 0,
)
for row in rows
]
def file_count(self) -> int:
"""Get number of files in current directory.
Returns:
File count
"""
with self._lock:
conn = self._get_connection()
row = conn.execute("SELECT COUNT(*) AS c FROM files").fetchone()
return int(row["c"]) if row else 0
# === Subdirectory Links ===
def register_subdir(
self,
name: str,
index_path: str | Path,
files_count: int = 0,
direct_files: int = 0,
) -> None:
"""Register or update a subdirectory link.
Args:
name: Subdirectory name
index_path: Path to subdirectory's _index.db
files_count: Total files recursively
direct_files: Files directly in subdirectory
"""
with self._lock:
conn = self._get_connection()
index_path_str = str(Path(index_path).resolve())
import time
last_updated = time.time()
conn.execute(
"""
INSERT INTO subdirs(name, index_path, files_count, direct_files, last_updated)
VALUES(?, ?, ?, ?, ?)
ON CONFLICT(name) DO UPDATE SET
index_path=excluded.index_path,
files_count=excluded.files_count,
direct_files=excluded.direct_files,
last_updated=excluded.last_updated
""",
(name, index_path_str, files_count, direct_files, last_updated),
)
conn.commit()
def unregister_subdir(self, name: str) -> bool:
"""Remove a subdirectory link.
Args:
name: Subdirectory name
Returns:
True if removed, False if not found
"""
with self._lock:
conn = self._get_connection()
row = conn.execute("SELECT id FROM subdirs WHERE name=?", (name,)).fetchone()
if not row:
return False
conn.execute("DELETE FROM subdirs WHERE name=?", (name,))
conn.commit()
return True
def get_subdirs(self) -> List[SubdirLink]:
"""Get all subdirectory links.
Returns:
List of SubdirLink objects
"""
with self._lock:
conn = self._get_connection()
rows = conn.execute(
"""
SELECT id, name, index_path, files_count, direct_files, last_updated
FROM subdirs
ORDER BY name
"""
).fetchall()
return [
SubdirLink(
id=int(row["id"]),
name=row["name"],
index_path=Path(row["index_path"]),
files_count=int(row["files_count"]) if row["files_count"] else 0,
direct_files=int(row["direct_files"]) if row["direct_files"] else 0,
last_updated=float(row["last_updated"]) if row["last_updated"] else 0.0,
)
for row in rows
]
def get_subdir(self, name: str) -> Optional[SubdirLink]:
"""Get a specific subdirectory link.
Args:
name: Subdirectory name
Returns:
SubdirLink if found, None otherwise
"""
with self._lock:
conn = self._get_connection()
row = conn.execute(
"""
SELECT id, name, index_path, files_count, direct_files, last_updated
FROM subdirs WHERE name=?
""",
(name,),
).fetchone()
if not row:
return None
return SubdirLink(
id=int(row["id"]),
name=row["name"],
index_path=Path(row["index_path"]),
files_count=int(row["files_count"]) if row["files_count"] else 0,
direct_files=int(row["direct_files"]) if row["direct_files"] else 0,
last_updated=float(row["last_updated"]) if row["last_updated"] else 0.0,
)
def update_subdir_stats(
self, name: str, files_count: int, direct_files: Optional[int] = None
) -> None:
"""Update subdirectory statistics.
Args:
name: Subdirectory name
files_count: Total files recursively
direct_files: Files directly in subdirectory (optional)
"""
with self._lock:
conn = self._get_connection()
import time
last_updated = time.time()
if direct_files is not None:
conn.execute(
"""
UPDATE subdirs
SET files_count=?, direct_files=?, last_updated=?
WHERE name=?
""",
(files_count, direct_files, last_updated, name),
)
else:
conn.execute(
"""
UPDATE subdirs
SET files_count=?, last_updated=?
WHERE name=?
""",
(files_count, last_updated, name),
)
conn.commit()
# === Search ===
def search_fts(self, query: str, limit: int = 20) -> List[SearchResult]:
"""Full-text search in current directory files.
Args:
query: FTS5 query string
limit: Maximum results to return
Returns:
List of SearchResult objects sorted by relevance
Raises:
StorageError: If FTS search fails
"""
with self._lock:
conn = self._get_connection()
try:
rows = conn.execute(
"""
SELECT rowid, full_path, bm25(files_fts) AS rank,
snippet(files_fts, 2, '[bold red]', '[/bold red]', '...', 20) AS excerpt
FROM files_fts
WHERE files_fts MATCH ?
ORDER BY rank
LIMIT ?
""",
(query, limit),
).fetchall()
except sqlite3.DatabaseError as exc:
raise StorageError(f"FTS search failed: {exc}") from exc
results: List[SearchResult] = []
for row in rows:
rank = float(row["rank"]) if row["rank"] is not None else 0.0
score = abs(rank) if rank < 0 else 0.0
results.append(
SearchResult(
path=row["full_path"],
score=score,
excerpt=row["excerpt"],
)
)
return results
def search_files_only(self, query: str, limit: int = 20) -> List[str]:
"""Fast FTS search returning only file paths (no snippet generation).
Optimized for when only file paths are needed, skipping expensive
snippet() function call.
Args:
query: FTS5 query string
limit: Maximum results to return
Returns:
List of file paths as strings
Raises:
StorageError: If FTS search fails
"""
with self._lock:
conn = self._get_connection()
try:
rows = conn.execute(
"""
SELECT full_path
FROM files_fts
WHERE files_fts MATCH ?
ORDER BY bm25(files_fts)
LIMIT ?
""",
(query, limit),
).fetchall()
except sqlite3.DatabaseError as exc:
raise StorageError(f"FTS search failed: {exc}") from exc
return [row["full_path"] for row in rows]
def search_symbols(
self, name: str, kind: Optional[str] = None, limit: int = 50
) -> List[Symbol]:
"""Search symbols by name pattern.
Args:
name: Symbol name pattern (LIKE query)
kind: Optional symbol kind filter
limit: Maximum results to return
Returns:
List of Symbol objects
"""
pattern = f"%{name}%"
with self._lock:
conn = self._get_connection()
if kind:
rows = conn.execute(
"""
SELECT name, kind, start_line, end_line
FROM symbols
WHERE name LIKE ? AND kind=?
ORDER BY name
LIMIT ?
""",
(pattern, kind, limit),
).fetchall()
else:
rows = conn.execute(
"""
SELECT name, kind, start_line, end_line
FROM symbols
WHERE name LIKE ?
ORDER BY name
LIMIT ?
""",
(pattern, limit),
).fetchall()
return [
Symbol(
name=row["name"],
kind=row["kind"],
range=(row["start_line"], row["end_line"]),
)
for row in rows
]
# === Statistics ===
def stats(self) -> Dict[str, Any]:
"""Get current directory statistics.
Returns:
Dictionary containing:
- files: Number of files in this directory
- symbols: Number of symbols
- subdirs: Number of subdirectories
- total_files: Total files including subdirectories
- languages: Dictionary of language counts
"""
with self._lock:
conn = self._get_connection()
file_count = conn.execute("SELECT COUNT(*) AS c FROM files").fetchone()["c"]
symbol_count = conn.execute("SELECT COUNT(*) AS c FROM symbols").fetchone()["c"]
subdir_count = conn.execute("SELECT COUNT(*) AS c FROM subdirs").fetchone()["c"]
total_files_row = conn.execute(
"SELECT COALESCE(SUM(files_count), 0) AS total FROM subdirs"
).fetchone()
total_files = int(file_count) + int(total_files_row["total"] if total_files_row else 0)
lang_rows = conn.execute(
"SELECT language, COUNT(*) AS c FROM files GROUP BY language ORDER BY c DESC"
).fetchall()
languages = {row["language"]: int(row["c"]) for row in lang_rows}
return {
"files": int(file_count),
"symbols": int(symbol_count),
"subdirs": int(subdir_count),
"total_files": total_files,
"languages": languages,
}
# === Internal Methods ===
def _get_connection(self) -> sqlite3.Connection:
"""Get or create database connection with proper configuration.
Returns:
sqlite3.Connection with WAL mode and foreign keys enabled
"""
if self._conn is None:
self._conn = sqlite3.connect(str(self.db_path), check_same_thread=False)
self._conn.row_factory = sqlite3.Row
self._conn.execute("PRAGMA journal_mode=WAL")
self._conn.execute("PRAGMA synchronous=NORMAL")
self._conn.execute("PRAGMA foreign_keys=ON")
# Memory-mapped I/O for faster reads (30GB limit)
self._conn.execute("PRAGMA mmap_size=30000000000")
return self._conn
def _create_schema(self, conn: sqlite3.Connection) -> None:
"""Create database schema.
Args:
conn: Database connection
Raises:
StorageError: If schema creation fails
"""
try:
# Files table
conn.execute(
"""
CREATE TABLE IF NOT EXISTS files (
id INTEGER PRIMARY KEY,
name TEXT NOT NULL,
full_path TEXT UNIQUE NOT NULL,
language TEXT,
content TEXT,
mtime REAL,
line_count INTEGER
)
"""
)
# Subdirectories table
conn.execute(
"""
CREATE TABLE IF NOT EXISTS subdirs (
id INTEGER PRIMARY KEY,
name TEXT NOT NULL UNIQUE,
index_path TEXT NOT NULL,
files_count INTEGER DEFAULT 0,
direct_files INTEGER DEFAULT 0,
last_updated REAL
)
"""
)
# Symbols table
conn.execute(
"""
CREATE TABLE IF NOT EXISTS symbols (
id INTEGER PRIMARY KEY,
file_id INTEGER REFERENCES files(id) ON DELETE CASCADE,
name TEXT NOT NULL,
kind TEXT NOT NULL,
start_line INTEGER,
end_line INTEGER
)
"""
)
# FTS5 external content table with code-friendly tokenizer
# unicode61 tokenchars keeps underscores as part of tokens
# so 'user_id' is indexed as one token, not 'user' and 'id'
conn.execute(
"""
CREATE VIRTUAL TABLE IF NOT EXISTS files_fts USING fts5(
name, full_path UNINDEXED, content,
content='files',
content_rowid='id',
tokenize="unicode61 tokenchars '_'"
)
"""
)
# Indexes
conn.execute("CREATE INDEX IF NOT EXISTS idx_files_name ON files(name)")
conn.execute("CREATE INDEX IF NOT EXISTS idx_files_path ON files(full_path)")
conn.execute("CREATE INDEX IF NOT EXISTS idx_subdirs_name ON subdirs(name)")
conn.execute("CREATE INDEX IF NOT EXISTS idx_symbols_name ON symbols(name)")
conn.execute("CREATE INDEX IF NOT EXISTS idx_symbols_file ON symbols(file_id)")
except sqlite3.DatabaseError as exc:
raise StorageError(f"Failed to create schema: {exc}") from exc
def _create_fts_triggers(self, conn: sqlite3.Connection) -> None:
"""Create FTS5 external content triggers.
Args:
conn: Database connection
"""
# Insert trigger
conn.execute(
"""
CREATE TRIGGER IF NOT EXISTS files_ai AFTER INSERT ON files BEGIN
INSERT INTO files_fts(rowid, name, full_path, content)
VALUES(new.id, new.name, new.full_path, new.content);
END
"""
)
# Delete trigger
conn.execute(
"""
CREATE TRIGGER IF NOT EXISTS files_ad AFTER DELETE ON files BEGIN
INSERT INTO files_fts(files_fts, rowid, name, full_path, content)
VALUES('delete', old.id, old.name, old.full_path, old.content);
END
"""
)
# Update trigger
conn.execute(
"""
CREATE TRIGGER IF NOT EXISTS files_au AFTER UPDATE ON files BEGIN
INSERT INTO files_fts(files_fts, rowid, name, full_path, content)
VALUES('delete', old.id, old.name, old.full_path, old.content);
INSERT INTO files_fts(rowid, name, full_path, content)
VALUES(new.id, new.name, new.full_path, new.content);
END
"""
)

698
codex-lens/src/codexlens/storage/index_tree.py Normal file
View File

@@ -0,0 +1,698 @@
"""Hierarchical index tree builder for CodexLens.
Constructs a bottom-up directory index tree with parallel processing support.
Each directory maintains its own _index.db with files and subdirectory links.
"""
from __future__ import annotations
import logging
import os
import time
from concurrent.futures import ProcessPoolExecutor, as_completed
from dataclasses import dataclass
from pathlib import Path
from typing import Dict, List, Optional, Set
from codexlens.config import Config
from codexlens.parsers.factory import ParserFactory
from codexlens.storage.dir_index import DirIndexStore
from codexlens.storage.path_mapper import PathMapper
from codexlens.storage.registry import ProjectInfo, RegistryStore
@dataclass
class BuildResult:
"""Complete build operation result."""
project_id: int
source_root: Path
index_root: Path
total_files: int
total_dirs: int
errors: List[str]
@dataclass
class DirBuildResult:
"""Single directory build result."""
source_path: Path
index_path: Path
files_count: int
symbols_count: int
subdirs: List[str] # Subdirectory names
error: Optional[str] = None
class IndexTreeBuilder:
"""Hierarchical index tree builder with parallel processing.
Builds directory indexes bottom-up to enable proper subdirectory linking.
Each directory gets its own _index.db containing:
- Files in that directory
- Links to child directory indexes
- Symbols and FTS5 search
Attributes:
registry: Global project registry
mapper: Path mapping between source and index
config: CodexLens configuration
parser_factory: Parser factory for symbol extraction
logger: Logger instance
IGNORE_DIRS: Set of directory names to skip during indexing
"""
# Directories to skip during indexing
IGNORE_DIRS: Set[str] = {
".git",
".venv",
"venv",
"node_modules",
"__pycache__",
".codexlens",
".idea",
".vscode",
}
def __init__(
self, registry: RegistryStore, mapper: PathMapper, config: Config = None
):
"""Initialize the index tree builder.
Args:
registry: Global registry store for project tracking
mapper: Path mapper for source to index conversions
config: CodexLens configuration (uses defaults if None)
"""
self.registry = registry
self.mapper = mapper
self.config = config or Config()
self.parser_factory = ParserFactory(self.config)
self.logger = logging.getLogger(__name__)
def build(
self,
source_root: Path,
languages: List[str] = None,
workers: int = 4,
) -> BuildResult:
"""Build complete index tree for a project.
Process:
1. Register project in registry
2. Collect all directories grouped by depth
3. Build indexes bottom-up (deepest first)
4. Link subdirectories to parents
5. Update project statistics
Args:
source_root: Project root directory to index
languages: Optional list of language IDs to limit indexing
workers: Number of parallel worker processes
Returns:
BuildResult with statistics and errors
Raises:
ValueError: If source_root doesn't exist
"""
source_root = source_root.resolve()
if not source_root.exists():
raise ValueError(f"Source root does not exist: {source_root}")
self.logger.info("Building index tree for %s", source_root)
# Register project
index_root = self.mapper.source_to_index_dir(source_root)
project_info = self.registry.register_project(source_root, index_root)
# Collect directories by depth
dirs_by_depth = self._collect_dirs_by_depth(source_root, languages)
if not dirs_by_depth:
self.logger.warning("No indexable directories found in %s", source_root)
return BuildResult(
project_id=project_info.id,
source_root=source_root,
index_root=index_root,
total_files=0,
total_dirs=0,
errors=["No indexable directories found"],
)
total_files = 0
total_dirs = 0
all_errors: List[str] = []
all_results: List[DirBuildResult] = [] # Store all results for subdir linking
# Build bottom-up (highest depth first)
max_depth = max(dirs_by_depth.keys())
for depth in range(max_depth, -1, -1):
if depth not in dirs_by_depth:
continue
dirs = dirs_by_depth[depth]
self.logger.info("Building %d directories at depth %d", len(dirs), depth)
# Build directories at this level in parallel
results = self._build_level_parallel(dirs, languages, workers)
all_results.extend(results)
# Process results
for result in results:
if result.error:
all_errors.append(f"{result.source_path}: {result.error}")
continue
total_files += result.files_count
total_dirs += 1
# Register directory in registry
self.registry.register_dir(
project_id=project_info.id,
source_path=result.source_path,
index_path=result.index_path,
depth=self.mapper.get_relative_depth(result.source_path, source_root),
files_count=result.files_count,
)
# After building all directories, link subdirectories to parents
# This needs to happen after all indexes exist
for result in all_results:
if result.error:
continue
# Link children to this directory
self._link_children_to_parent(result.source_path, all_results)
# Update project statistics
self.registry.update_project_stats(source_root, total_files, total_dirs)
self.logger.info(
"Index build complete: %d files, %d directories, %d errors",
total_files,
total_dirs,
len(all_errors),
)
return BuildResult(
project_id=project_info.id,
source_root=source_root,
index_root=index_root,
total_files=total_files,
total_dirs=total_dirs,
errors=all_errors,
)
def update_subtree(
self,
source_path: Path,
languages: List[str] = None,
workers: int = 4,
) -> BuildResult:
"""Incrementally update a subtree.
Rebuilds indexes for the specified directory and all subdirectories.
Useful for incremental updates when only part of the tree changed.
Args:
source_path: Root of subtree to update
languages: Optional list of language IDs to limit indexing
workers: Number of parallel worker processes
Returns:
BuildResult for the subtree
Raises:
ValueError: If source_path is not indexed
"""
source_path = source_path.resolve()
project_root = self.mapper.get_project_root(source_path)
# Get project info
project_info = self.registry.get_project(project_root)
if not project_info:
raise ValueError(f"Directory not indexed: {source_path}")
self.logger.info("Updating subtree at %s", source_path)
# Use build logic but start from source_path
return self.build(source_path, languages, workers)
def rebuild_dir(self, source_path: Path) -> DirBuildResult:
"""Rebuild index for a single directory.
Only rebuilds the specified directory, does not touch subdirectories.
Useful for updating a single directory after file changes.
Args:
source_path: Directory to rebuild
Returns:
DirBuildResult for the directory
"""
source_path = source_path.resolve()
self.logger.info("Rebuilding directory %s", source_path)
return self._build_single_dir(source_path)
# === Internal Methods ===
def _collect_dirs_by_depth(
self, source_root: Path, languages: List[str] = None
) -> Dict[int, List[Path]]:
"""Collect all indexable directories grouped by depth.
Walks the directory tree and groups directories by their depth
relative to source_root. Depth 0 is the root itself.
Args:
source_root: Root directory to start from
languages: Optional language filter
Returns:
Dictionary mapping depth to list of directory paths
Example: {0: [root], 1: [src, tests], 2: [src/api, src/utils]}
"""
source_root = source_root.resolve()
dirs_by_depth: Dict[int, List[Path]] = {}
# Always include the root directory at depth 0 for chain search entry point
dirs_by_depth[0] = [source_root]
for root, dirnames, _ in os.walk(source_root):
# Filter out ignored directories
dirnames[:] = [
d
for d in dirnames
if d not in self.IGNORE_DIRS and not d.startswith(".")
]
root_path = Path(root)
# Skip root (already added)
if root_path == source_root:
continue
# Check if this directory should be indexed
if not self._should_index_dir(root_path, languages):
continue
# Calculate depth relative to source_root
try:
depth = len(root_path.relative_to(source_root).parts)
except ValueError:
continue
if depth not in dirs_by_depth:
dirs_by_depth[depth] = []
dirs_by_depth[depth].append(root_path)
return dirs_by_depth
def _should_index_dir(self, dir_path: Path, languages: List[str] = None) -> bool:
"""Check if directory should be indexed.
A directory is indexed if:
1. It's not in IGNORE_DIRS
2. It doesn't start with '.'
3. It contains at least one supported language file
Args:
dir_path: Directory to check
languages: Optional language filter
Returns:
True if directory should be indexed
"""
# Check directory name
if dir_path.name in self.IGNORE_DIRS or dir_path.name.startswith("."):
return False
# Check for supported files in this directory
source_files = self._iter_source_files(dir_path, languages)
return len(source_files) > 0
def _build_level_parallel(
self, dirs: List[Path], languages: List[str], workers: int
) -> List[DirBuildResult]:
"""Build multiple directories in parallel.
Uses ProcessPoolExecutor to build directories concurrently.
All directories at the same level are independent and can be
processed in parallel.
Args:
dirs: List of directories to build
languages: Language filter
workers: Number of worker processes
Returns:
List of DirBuildResult objects
"""
results: List[DirBuildResult] = []
if not dirs:
return results
# For single directory, avoid overhead of process pool
if len(dirs) == 1:
result = self._build_single_dir(dirs[0], languages)
return [result]
# Prepare arguments for worker processes
config_dict = {
"data_dir": str(self.config.data_dir),
"supported_languages": self.config.supported_languages,
"parsing_rules": self.config.parsing_rules,
}
worker_args = [
(
dir_path,
self.mapper.source_to_index_db(dir_path),
languages,
config_dict,
)
for dir_path in dirs
]
# Execute in parallel
with ProcessPoolExecutor(max_workers=workers) as executor:
futures = {
executor.submit(_build_dir_worker, args): args[0]
for args in worker_args
}
for future in as_completed(futures):
try:
result = future.result()
results.append(result)
except Exception as exc:
dir_path = futures[future]
self.logger.error("Failed to build %s: %s", dir_path, exc)
results.append(
DirBuildResult(
source_path=dir_path,
index_path=self.mapper.source_to_index_db(dir_path),
files_count=0,
symbols_count=0,
subdirs=[],
error=str(exc),
)
)
return results
def _build_single_dir(
self, dir_path: Path, languages: List[str] = None
) -> DirBuildResult:
"""Build index for a single directory.
Creates _index.db and indexes all files in the directory.
Does not recurse into subdirectories.
Args:
dir_path: Directory to index
languages: Optional language filter
Returns:
DirBuildResult with statistics and subdirectory list
"""
dir_path = dir_path.resolve()
index_db_path = self.mapper.source_to_index_db(dir_path)
try:
# Ensure index directory exists
index_db_path.parent.mkdir(parents=True, exist_ok=True)
# Create directory index
store = DirIndexStore(index_db_path)
store.initialize()
# Get source files in this directory only
source_files = self._iter_source_files(dir_path, languages)
files_count = 0
symbols_count = 0
for file_path in source_files:
try:
# Read and parse file
text = file_path.read_text(encoding="utf-8", errors="ignore")
language_id = self.config.language_for_path(file_path)
if not language_id:
continue
parser = self.parser_factory.get_parser(language_id)
indexed_file = parser.parse(text, file_path)
# Add to directory index
store.add_file(
name=file_path.name,
full_path=file_path,
content=text,
language=language_id,
symbols=indexed_file.symbols,
)
files_count += 1
symbols_count += len(indexed_file.symbols)
except Exception as exc:
self.logger.debug("Failed to index %s: %s", file_path, exc)
continue
# Get list of subdirectories
subdirs = [
d.name
for d in dir_path.iterdir()
if d.is_dir()
and d.name not in self.IGNORE_DIRS
and not d.name.startswith(".")
]
store.close()
self.logger.debug(
"Built %s: %d files, %d symbols, %d subdirs",
dir_path,
files_count,
symbols_count,
len(subdirs),
)
return DirBuildResult(
source_path=dir_path,
index_path=index_db_path,
files_count=files_count,
symbols_count=symbols_count,
subdirs=subdirs,
)
except Exception as exc:
self.logger.error("Failed to build directory %s: %s", dir_path, exc)
return DirBuildResult(
source_path=dir_path,
index_path=index_db_path,
files_count=0,
symbols_count=0,
subdirs=[],
error=str(exc),
)
def _link_children_to_parent(
self, parent_path: Path, all_results: List[DirBuildResult]
) -> None:
"""Link child directory indexes to parent's subdirs table.
Finds all direct children of parent_path in all_results and
registers them as subdirectories in the parent's index.
Args:
parent_path: Parent directory path
all_results: List of all build results
"""
parent_index_db = self.mapper.source_to_index_db(parent_path)
try:
store = DirIndexStore(parent_index_db)
store.initialize()
for result in all_results:
# Only register direct children (parent is one level up)
if result.source_path.parent != parent_path:
continue
if result.error:
continue
# Register subdirectory link
store.register_subdir(
name=result.source_path.name,
index_path=result.index_path,
files_count=result.files_count,
direct_files=result.files_count,
)
self.logger.debug(
"Linked %s to parent %s",
result.source_path.name,
parent_path,
)
store.close()
except Exception as exc:
self.logger.error(
"Failed to link children to %s: %s", parent_path, exc
)
def _iter_source_files(
self, dir_path: Path, languages: List[str] = None
) -> List[Path]:
"""Iterate source files in directory (non-recursive).
Returns files in the specified directory that match language filters.
Does not recurse into subdirectories.
Args:
dir_path: Directory to scan
languages: Optional language filter
Returns:
List of source file paths
"""
files: List[Path] = []
if not dir_path.is_dir():
return files
for item in dir_path.iterdir():
if not item.is_file():
continue
if item.name.startswith("."):
continue
# Check language support
language_id = self.config.language_for_path(item)
if not language_id:
continue
# Apply language filter
if languages and language_id not in languages:
continue
files.append(item)
return files
# === Worker Function for ProcessPoolExecutor ===
def _build_dir_worker(args: tuple) -> DirBuildResult:
"""Worker function for parallel directory building.
Must be at module level for ProcessPoolExecutor pickling.
Reconstructs necessary objects from serializable arguments.
Args:
args: Tuple of (dir_path, index_db_path, languages, config_dict)
Returns:
DirBuildResult for the directory
"""
dir_path, index_db_path, languages, config_dict = args
# Reconstruct config
config = Config(
data_dir=Path(config_dict["data_dir"]),
supported_languages=config_dict["supported_languages"],
parsing_rules=config_dict["parsing_rules"],
)
parser_factory = ParserFactory(config)
try:
# Ensure index directory exists
index_db_path.parent.mkdir(parents=True, exist_ok=True)
# Create directory index
store = DirIndexStore(index_db_path)
store.initialize()
files_count = 0
symbols_count = 0
# Index files in this directory
for item in dir_path.iterdir():
if not item.is_file():
continue
if item.name.startswith("."):
continue
language_id = config.language_for_path(item)
if not language_id:
continue
if languages and language_id not in languages:
continue
try:
text = item.read_text(encoding="utf-8", errors="ignore")
parser = parser_factory.get_parser(language_id)
indexed_file = parser.parse(text, item)
store.add_file(
name=item.name,
full_path=item,
content=text,
language=language_id,
symbols=indexed_file.symbols,
)
files_count += 1
symbols_count += len(indexed_file.symbols)
except Exception:
continue
# Get subdirectories
ignore_dirs = {
".git",
".venv",
"venv",
"node_modules",
"__pycache__",
".codexlens",
".idea",
".vscode",
}
subdirs = [
d.name
for d in dir_path.iterdir()
if d.is_dir() and d.name not in ignore_dirs and not d.name.startswith(".")
]
store.close()
return DirBuildResult(
source_path=dir_path,
index_path=index_db_path,
files_count=files_count,
symbols_count=symbols_count,
subdirs=subdirs,
)
except Exception as exc:
return DirBuildResult(
source_path=dir_path,
index_path=index_db_path,
files_count=0,
symbols_count=0,
subdirs=[],
error=str(exc),
)

274
codex-lens/src/codexlens/storage/path_mapper.py Normal file
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"""Path mapping utilities for source paths and index paths.
This module provides bidirectional mapping between source code directories
and their corresponding index storage locations.
Storage Structure:
~/.codexlens/
├── registry.db # Global mapping table
└── indexes/
└── D/
└── Claude_dms3/
├── _index.db # Root directory index
└── src/
└── _index.db # src/ directory index
"""
import platform
from pathlib import Path
from typing import Optional
class PathMapper:
"""Bidirectional mapping tool for source paths ↔ index paths.
Handles cross-platform path normalization and conversion between
source code directories and their index storage locations.
Attributes:
DEFAULT_INDEX_ROOT: Default root directory for all indexes
INDEX_DB_NAME: Standard name for index database files
index_root: Configured index root directory
"""
DEFAULT_INDEX_ROOT = Path.home() / ".codexlens" / "indexes"
INDEX_DB_NAME = "_index.db"
def __init__(self, index_root: Optional[Path] = None):
"""Initialize PathMapper with optional custom index root.
Args:
index_root: Custom index root directory. If None, uses DEFAULT_INDEX_ROOT.
"""
self.index_root = (index_root or self.DEFAULT_INDEX_ROOT).resolve()
def source_to_index_dir(self, source_path: Path) -> Path:
"""Convert source directory to its index directory path.
Maps a source code directory to where its index data should be stored.
The mapping preserves the directory structure but normalizes paths
for cross-platform compatibility.
Args:
source_path: Source directory path to map
Returns:
Index directory path under index_root
Examples:
>>> mapper = PathMapper()
>>> mapper.source_to_index_dir(Path("D:/Claude_dms3/src"))
PosixPath('/home/user/.codexlens/indexes/D/Claude_dms3/src')
>>> mapper.source_to_index_dir(Path("/home/user/project"))
PosixPath('/home/user/.codexlens/indexes/home/user/project')
"""
source_path = source_path.resolve()
normalized = self.normalize_path(source_path)
return self.index_root / normalized
def source_to_index_db(self, source_path: Path) -> Path:
"""Convert source directory to its index database file path.
Maps a source directory to the full path of its index database file,
including the standard INDEX_DB_NAME.
Args:
source_path: Source directory path to map
Returns:
Full path to the index database file
Examples:
>>> mapper = PathMapper()
>>> mapper.source_to_index_db(Path("D:/Claude_dms3/src"))
PosixPath('/home/user/.codexlens/indexes/D/Claude_dms3/src/_index.db')
"""
index_dir = self.source_to_index_dir(source_path)
return index_dir / self.INDEX_DB_NAME
def index_to_source(self, index_path: Path) -> Path:
"""Convert index path back to original source path.
Performs reverse mapping from an index storage location to the
original source directory. Handles both directory paths and
database file paths.
Args:
index_path: Index directory or database file path
Returns:
Original source directory path
Raises:
ValueError: If index_path is not under index_root
Examples:
>>> mapper = PathMapper()
>>> mapper.index_to_source(
... Path("~/.codexlens/indexes/D/Claude_dms3/src/_index.db")
... )
WindowsPath('D:/Claude_dms3/src')
>>> mapper.index_to_source(
... Path("~/.codexlens/indexes/D/Claude_dms3/src")
... )
WindowsPath('D:/Claude_dms3/src')
"""
index_path = index_path.resolve()
# Remove _index.db if present
if index_path.name == self.INDEX_DB_NAME:
index_path = index_path.parent
# Verify path is under index_root
try:
relative = index_path.relative_to(self.index_root)
except ValueError:
raise ValueError(
f"Index path {index_path} is not under index root {self.index_root}"
)
# Convert normalized path back to source path
normalized_str = str(relative).replace("\\", "/")
return self.denormalize_path(normalized_str)
def get_project_root(self, source_path: Path) -> Path:
"""Find the project root directory (topmost indexed directory).
Walks up the directory tree to find the highest-level directory
that has an index database.
Args:
source_path: Source directory to start from
Returns:
Project root directory path. Returns source_path itself if
no parent index is found.
Examples:
>>> mapper = PathMapper()
>>> mapper.get_project_root(Path("D:/Claude_dms3/src/codexlens"))
WindowsPath('D:/Claude_dms3')
"""
source_path = source_path.resolve()
current = source_path
project_root = source_path
# Walk up the tree
while current.parent != current: # Stop at filesystem root
parent_index_db = self.source_to_index_db(current.parent)
if parent_index_db.exists():
project_root = current.parent
current = current.parent
else:
break
return project_root
def get_relative_depth(self, source_path: Path, project_root: Path) -> int:
"""Calculate directory depth relative to project root.
Args:
source_path: Target directory path
project_root: Project root directory path
Returns:
Number of directory levels from project_root to source_path
Raises:
ValueError: If source_path is not under project_root
Examples:
>>> mapper = PathMapper()
>>> mapper.get_relative_depth(
... Path("D:/Claude_dms3/src/codexlens"),
... Path("D:/Claude_dms3")
... )
2
"""
source_path = source_path.resolve()
project_root = project_root.resolve()
try:
relative = source_path.relative_to(project_root)
# Count path components
return len(relative.parts)
except ValueError:
raise ValueError(
f"Source path {source_path} is not under project root {project_root}"
)
def normalize_path(self, path: Path) -> str:
"""Normalize path to cross-platform storage format.
Converts OS-specific paths to a standardized format for storage:
- Windows: Removes drive colons (D: → D)
- Unix: Removes leading slash
- Uses forward slashes throughout
Args:
path: Path to normalize
Returns:
Normalized path string
Examples:
>>> mapper = PathMapper()
>>> mapper.normalize_path(Path("D:/path/to/dir"))
'D/path/to/dir'
>>> mapper.normalize_path(Path("/home/user/path"))
'home/user/path'
"""
path = path.resolve()
path_str = str(path)
# Handle Windows paths with drive letters
if platform.system() == "Windows" and len(path.parts) > 0:
# Convert D:\path\to\dir → D/path/to/dir
drive = path.parts[0].replace(":", "") # D: → D
rest = Path(*path.parts[1:]) if len(path.parts) > 1 else Path()
normalized = f"{drive}/{rest}".replace("\\", "/")
return normalized.rstrip("/")
# Handle Unix paths
# /home/user/path → home/user/path
return path_str.lstrip("/").replace("\\", "/")
def denormalize_path(self, normalized: str) -> Path:
"""Convert normalized path back to OS-specific path.
Reverses the normalization process to restore OS-native path format:
- Windows: Adds drive colons (D → D:)
- Unix: Adds leading slash
Args:
normalized: Normalized path string
Returns:
OS-specific Path object
Examples:
>>> mapper = PathMapper()
>>> mapper.denormalize_path("D/path/to/dir") # On Windows
WindowsPath('D:/path/to/dir')
>>> mapper.denormalize_path("home/user/path") # On Unix
PosixPath('/home/user/path')
"""
parts = normalized.split("/")
# Handle Windows paths
if platform.system() == "Windows" and len(parts) > 0:
# Check if first part is a drive letter
if len(parts[0]) == 1 and parts[0].isalpha():
# D/path/to/dir → D:/path/to/dir
drive = f"{parts[0]}:"
if len(parts) > 1:
return Path(drive) / Path(*parts[1:])
return Path(drive)
# Handle Unix paths or relative paths
# home/user/path → /home/user/path
return Path("/") / Path(*parts)

600
codex-lens/src/codexlens/storage/registry.py Normal file
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"""Global project registry for CodexLens - SQLite storage."""
from __future__ import annotations
import sqlite3
import threading
import time
from dataclasses import dataclass
from pathlib import Path
from typing import Dict, List, Optional
from codexlens.errors import StorageError
@dataclass
class ProjectInfo:
"""Registered project information."""
id: int
source_root: Path
index_root: Path
created_at: float
last_indexed: float
total_files: int
total_dirs: int
status: str
@dataclass
class DirMapping:
"""Directory to index path mapping."""
id: int
project_id: int
source_path: Path
index_path: Path
depth: int
files_count: int
last_updated: float
class RegistryStore:
"""Global project registry - SQLite storage.
Manages indexed projects and directory-to-index path mappings.
Thread-safe with connection pooling.
"""
DEFAULT_DB_PATH = Path.home() / ".codexlens" / "registry.db"
def __init__(self, db_path: Path | None = None) -> None:
self.db_path = (db_path or self.DEFAULT_DB_PATH).resolve()
self._lock = threading.RLock()
self._local = threading.local()
self._pool_lock = threading.Lock()
self._pool: Dict[int, sqlite3.Connection] = {}
self._pool_generation = 0
def _get_connection(self) -> sqlite3.Connection:
"""Get or create a thread-local database connection."""
thread_id = threading.get_ident()
if getattr(self._local, "generation", None) == self._pool_generation:
conn = getattr(self._local, "conn", None)
if conn is not None:
return conn
with self._pool_lock:
conn = self._pool.get(thread_id)
if conn is None:
conn = sqlite3.connect(self.db_path, check_same_thread=False)
conn.row_factory = sqlite3.Row
conn.execute("PRAGMA journal_mode=WAL")
conn.execute("PRAGMA synchronous=NORMAL")
conn.execute("PRAGMA foreign_keys=ON")
self._pool[thread_id] = conn
self._local.conn = conn
self._local.generation = self._pool_generation
return conn
def close(self) -> None:
"""Close all pooled connections."""
with self._lock:
with self._pool_lock:
for conn in self._pool.values():
conn.close()
self._pool.clear()
self._pool_generation += 1
if hasattr(self._local, "conn"):
self._local.conn = None
if hasattr(self._local, "generation"):
self._local.generation = self._pool_generation
def __enter__(self) -> RegistryStore:
self.initialize()
return self
def __exit__(self, exc_type: object, exc: object, tb: object) -> None:
self.close()
def initialize(self) -> None:
"""Create database and schema."""
with self._lock:
self.db_path.parent.mkdir(parents=True, exist_ok=True)
conn = self._get_connection()
self._create_schema(conn)
def _create_schema(self, conn: sqlite3.Connection) -> None:
"""Create database schema."""
try:
conn.execute(
"""
CREATE TABLE IF NOT EXISTS projects (
id INTEGER PRIMARY KEY,
source_root TEXT UNIQUE NOT NULL,
index_root TEXT NOT NULL,
created_at REAL,
last_indexed REAL,
total_files INTEGER DEFAULT 0,
total_dirs INTEGER DEFAULT 0,
status TEXT DEFAULT 'active'
)
"""
)
conn.execute(
"""
CREATE TABLE IF NOT EXISTS dir_mapping (
id INTEGER PRIMARY KEY,
project_id INTEGER REFERENCES projects(id) ON DELETE CASCADE,
source_path TEXT NOT NULL,
index_path TEXT NOT NULL,
depth INTEGER,
files_count INTEGER DEFAULT 0,
last_updated REAL,
UNIQUE(source_path)
)
"""
)
conn.execute(
"CREATE INDEX IF NOT EXISTS idx_dir_source ON dir_mapping(source_path)"
)
conn.execute(
"CREATE INDEX IF NOT EXISTS idx_dir_project ON dir_mapping(project_id)"
)
conn.execute(
"CREATE INDEX IF NOT EXISTS idx_project_source ON projects(source_root)"
)
conn.commit()
except sqlite3.DatabaseError as exc:
raise StorageError(f"Failed to initialize registry schema: {exc}") from exc
# === Project Operations ===
def register_project(self, source_root: Path, index_root: Path) -> ProjectInfo:
"""Register a new project or update existing one.
Args:
source_root: Source code root directory
index_root: Index storage root directory
Returns:
ProjectInfo for the registered project
"""
with self._lock:
conn = self._get_connection()
source_root_str = str(source_root.resolve())
index_root_str = str(index_root.resolve())
now = time.time()
conn.execute(
"""
INSERT INTO projects(source_root, index_root, created_at, last_indexed)
VALUES(?, ?, ?, ?)
ON CONFLICT(source_root) DO UPDATE SET
index_root=excluded.index_root,
last_indexed=excluded.last_indexed,
status='active'
""",
(source_root_str, index_root_str, now, now),
)
row = conn.execute(
"SELECT * FROM projects WHERE source_root=?", (source_root_str,)
).fetchone()
conn.commit()
if not row:
raise StorageError(f"Failed to register project: {source_root}")
return self._row_to_project_info(row)
def unregister_project(self, source_root: Path) -> bool:
"""Remove a project registration (cascades to directory mappings).
Args:
source_root: Source code root directory
Returns:
True if project was removed, False if not found
"""
with self._lock:
conn = self._get_connection()
source_root_str = str(source_root.resolve())
row = conn.execute(
"SELECT id FROM projects WHERE source_root=?", (source_root_str,)
).fetchone()
if not row:
return False
conn.execute("DELETE FROM projects WHERE source_root=?", (source_root_str,))
conn.commit()
return True
def get_project(self, source_root: Path) -> Optional[ProjectInfo]:
"""Get project information by source root.
Args:
source_root: Source code root directory
Returns:
ProjectInfo if found, None otherwise
"""
with self._lock:
conn = self._get_connection()
source_root_str = str(source_root.resolve())
row = conn.execute(
"SELECT * FROM projects WHERE source_root=?", (source_root_str,)
).fetchone()
return self._row_to_project_info(row) if row else None
def get_project_by_id(self, project_id: int) -> Optional[ProjectInfo]:
"""Get project information by ID.
Args:
project_id: Project database ID
Returns:
ProjectInfo if found, None otherwise
"""
with self._lock:
conn = self._get_connection()
row = conn.execute(
"SELECT * FROM projects WHERE id=?", (project_id,)
).fetchone()
return self._row_to_project_info(row) if row else None
def list_projects(self, status: Optional[str] = None) -> List[ProjectInfo]:
"""List all registered projects.
Args:
status: Optional status filter ('active', 'stale', 'removed')
Returns:
List of ProjectInfo objects
"""
with self._lock:
conn = self._get_connection()
if status:
rows = conn.execute(
"SELECT * FROM projects WHERE status=? ORDER BY created_at DESC",
(status,),
).fetchall()
else:
rows = conn.execute(
"SELECT * FROM projects ORDER BY created_at DESC"
).fetchall()
return [self._row_to_project_info(row) for row in rows]
def update_project_stats(
self, source_root: Path, total_files: int, total_dirs: int
) -> None:
"""Update project statistics.
Args:
source_root: Source code root directory
total_files: Total number of indexed files
total_dirs: Total number of indexed directories
"""
with self._lock:
conn = self._get_connection()
source_root_str = str(source_root.resolve())
conn.execute(
"""
UPDATE projects
SET total_files=?, total_dirs=?, last_indexed=?
WHERE source_root=?
""",
(total_files, total_dirs, time.time(), source_root_str),
)
conn.commit()
def set_project_status(self, source_root: Path, status: str) -> None:
"""Set project status.
Args:
source_root: Source code root directory
status: Status string ('active', 'stale', 'removed')
"""
with self._lock:
conn = self._get_connection()
source_root_str = str(source_root.resolve())
conn.execute(
"UPDATE projects SET status=? WHERE source_root=?",
(status, source_root_str),
)
conn.commit()
# === Directory Mapping Operations ===
def register_dir(
self,
project_id: int,
source_path: Path,
index_path: Path,
depth: int,
files_count: int = 0,
) -> DirMapping:
"""Register a directory mapping.
Args:
project_id: Project database ID
source_path: Source directory path
index_path: Index database path
depth: Directory depth relative to project root
files_count: Number of files in directory
Returns:
DirMapping for the registered directory
"""
with self._lock:
conn = self._get_connection()
source_path_str = str(source_path.resolve())
index_path_str = str(index_path.resolve())
now = time.time()
conn.execute(
"""
INSERT INTO dir_mapping(
project_id, source_path, index_path, depth, files_count, last_updated
)
VALUES(?, ?, ?, ?, ?, ?)
ON CONFLICT(source_path) DO UPDATE SET
index_path=excluded.index_path,
depth=excluded.depth,
files_count=excluded.files_count,
last_updated=excluded.last_updated
""",
(project_id, source_path_str, index_path_str, depth, files_count, now),
)
row = conn.execute(
"SELECT * FROM dir_mapping WHERE source_path=?", (source_path_str,)
).fetchone()
conn.commit()
if not row:
raise StorageError(f"Failed to register directory: {source_path}")
return self._row_to_dir_mapping(row)
def unregister_dir(self, source_path: Path) -> bool:
"""Remove a directory mapping.
Args:
source_path: Source directory path
Returns:
True if directory was removed, False if not found
"""
with self._lock:
conn = self._get_connection()
source_path_str = str(source_path.resolve())
row = conn.execute(
"SELECT id FROM dir_mapping WHERE source_path=?", (source_path_str,)
).fetchone()
if not row:
return False
conn.execute("DELETE FROM dir_mapping WHERE source_path=?", (source_path_str,))
conn.commit()
return True
def find_index_path(self, source_path: Path) -> Optional[Path]:
"""Find index path for a source directory (exact match).
Args:
source_path: Source directory path
Returns:
Index path if found, None otherwise
"""
with self._lock:
conn = self._get_connection()
source_path_str = str(source_path.resolve())
row = conn.execute(
"SELECT index_path FROM dir_mapping WHERE source_path=?",
(source_path_str,),
).fetchone()
return Path(row["index_path"]) if row else None
def find_nearest_index(self, source_path: Path) -> Optional[DirMapping]:
"""Find nearest indexed ancestor directory.
Searches for the closest parent directory that has an index.
Useful for supporting subdirectory searches.
Args:
source_path: Source directory or file path
Returns:
DirMapping for nearest ancestor, None if not found
"""
with self._lock:
conn = self._get_connection()
source_path_resolved = source_path.resolve()
# Check from current path up to root
current = source_path_resolved
while True:
current_str = str(current)
row = conn.execute(
"SELECT * FROM dir_mapping WHERE source_path=?", (current_str,)
).fetchone()
if row:
return self._row_to_dir_mapping(row)
parent = current.parent
if parent == current: # Reached filesystem root
break
current = parent
return None
def get_project_dirs(self, project_id: int) -> List[DirMapping]:
"""Get all directory mappings for a project.
Args:
project_id: Project database ID
Returns:
List of DirMapping objects
"""
with self._lock:
conn = self._get_connection()
rows = conn.execute(
"SELECT * FROM dir_mapping WHERE project_id=? ORDER BY depth, source_path",
(project_id,),
).fetchall()
return [self._row_to_dir_mapping(row) for row in rows]
def get_subdirs(self, source_path: Path) -> List[DirMapping]:
"""Get direct subdirectory mappings.
Args:
source_path: Parent directory path
Returns:
List of DirMapping objects for direct children
"""
with self._lock:
conn = self._get_connection()
source_path_str = str(source_path.resolve())
# First get the parent's depth
parent_row = conn.execute(
"SELECT depth, project_id FROM dir_mapping WHERE source_path=?",
(source_path_str,),
).fetchone()
if not parent_row:
return []
parent_depth = int(parent_row["depth"])
project_id = int(parent_row["project_id"])
# Get all subdirs with depth = parent_depth + 1 and matching path prefix
rows = conn.execute(
"""
SELECT * FROM dir_mapping
WHERE project_id=? AND depth=? AND source_path LIKE ?
ORDER BY source_path
""",
(project_id, parent_depth + 1, f"{source_path_str}%"),
).fetchall()
return [self._row_to_dir_mapping(row) for row in rows]
def update_dir_stats(self, source_path: Path, files_count: int) -> None:
"""Update directory statistics.
Args:
source_path: Source directory path
files_count: Number of files in directory
"""
with self._lock:
conn = self._get_connection()
source_path_str = str(source_path.resolve())
conn.execute(
"""
UPDATE dir_mapping
SET files_count=?, last_updated=?
WHERE source_path=?
""",
(files_count, time.time(), source_path_str),
)
conn.commit()
def update_index_paths(self, old_root: Path, new_root: Path) -> int:
"""Update all index paths after migration.
Replaces old_root prefix with new_root in all stored index paths.
Args:
old_root: Old index root directory
new_root: New index root directory
Returns:
Number of paths updated
"""
with self._lock:
conn = self._get_connection()
old_root_str = str(old_root.resolve())
new_root_str = str(new_root.resolve())
updated = 0
# Update projects
conn.execute(
"""
UPDATE projects
SET index_root = REPLACE(index_root, ?, ?)
WHERE index_root LIKE ?
""",
(old_root_str, new_root_str, f"{old_root_str}%"),
)
updated += conn.total_changes
# Update dir_mapping
conn.execute(
"""
UPDATE dir_mapping
SET index_path = REPLACE(index_path, ?, ?)
WHERE index_path LIKE ?
""",
(old_root_str, new_root_str, f"{old_root_str}%"),
)
updated += conn.total_changes
conn.commit()
return updated
# === Internal Methods ===
def _row_to_project_info(self, row: sqlite3.Row) -> ProjectInfo:
"""Convert database row to ProjectInfo."""
return ProjectInfo(
id=int(row["id"]),
source_root=Path(row["source_root"]),
index_root=Path(row["index_root"]),
created_at=float(row["created_at"]) if row["created_at"] else 0.0,
last_indexed=float(row["last_indexed"]) if row["last_indexed"] else 0.0,
total_files=int(row["total_files"]) if row["total_files"] else 0,
total_dirs=int(row["total_dirs"]) if row["total_dirs"] else 0,
status=str(row["status"]) if row["status"] else "active",
)
def _row_to_dir_mapping(self, row: sqlite3.Row) -> DirMapping:
"""Convert database row to DirMapping."""
return DirMapping(
id=int(row["id"]),
project_id=int(row["project_id"]),
source_path=Path(row["source_path"]),
index_path=Path(row["index_path"]),
depth=int(row["depth"]) if row["depth"] is not None else 0,
files_count=int(row["files_count"]) if row["files_count"] else 0,
last_updated=float(row["last_updated"]) if row["last_updated"] else 0.0,
)

5
codex-lens/src/codexlens/storage/sqlite_store.py
View File

@@ -43,6 +43,8 @@ class SQLiteStore:
conn.execute("PRAGMA journal_mode=WAL")
conn.execute("PRAGMA synchronous=NORMAL")
conn.execute("PRAGMA foreign_keys=ON")
# Memory-mapped I/O for faster reads (30GB limit)
conn.execute("PRAGMA mmap_size=30000000000")
self._pool[thread_id] = conn
self._local.conn = conn
@@ -384,7 +386,8 @@ class SQLiteStore:
language UNINDEXED,
content,
content='files',
content_rowid='id'
content_rowid='id',
tokenize="unicode61 tokenchars '_'"
)
"""
)