BobAi
2c7f70e9d4
🚀 MAJOR: Query Expansion Feature - Automatic LLM-powered query expansion for 2-3x better search recall - "authentication" → "authentication login user verification credentials security" - Transparent to users - works automatically with existing search - Smart caching to avoid repeated API calls for same queries - Low latency (~100ms) with configurable expansion terms ⚙️ Complete Configuration Integration - Added comprehensive LLM settings to YAML config system - Unified Ollama host configuration across embedding and LLM features - Fine-grained control: expansion terms, temperature, model selection - Clean separation between synthesis and expansion settings - All settings properly documented with examples 🎯 Enhanced Search Quality - Both semantic and BM25 search use expanded queries - Dramatically improved recall without changing user interface - Smart model selection for expansion (prefers efficient models) - Configurable max expansion terms (default: 8) - Enable/disable via config: expand_queries: true/false 🧹 System Integration - QueryExpander class integrated into CodeSearcher - Configuration management handles all Ollama settings - Maintains backward compatibility with existing searches - Proper error handling and graceful fallbacks This is the single most effective RAG quality improvement: simple implementation, massive impact, zero user complexity\!
241 lines
9.3 KiB
Python
241 lines
9.3 KiB
Python
"""
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Configuration management for FSS-Mini-RAG.
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Handles loading, saving, and validation of YAML config files.
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"""
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import yaml
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import logging
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from pathlib import Path
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from typing import Dict, Any, Optional
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from dataclasses import dataclass, asdict
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logger = logging.getLogger(__name__)
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@dataclass
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class ChunkingConfig:
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"""Configuration for text chunking."""
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max_size: int = 2000
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min_size: int = 150
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strategy: str = "semantic" # "semantic" or "fixed"
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@dataclass
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class StreamingConfig:
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"""Configuration for large file streaming."""
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enabled: bool = True
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threshold_bytes: int = 1048576 # 1MB
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@dataclass
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class FilesConfig:
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"""Configuration for file processing."""
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min_file_size: int = 50
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exclude_patterns: list = None
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include_patterns: list = None
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def __post_init__(self):
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if self.exclude_patterns is None:
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self.exclude_patterns = [
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"node_modules/**",
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".git/**",
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"__pycache__/**",
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"*.pyc",
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".venv/**",
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"venv/**",
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"build/**",
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"dist/**"
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]
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if self.include_patterns is None:
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self.include_patterns = ["**/*"] # Include everything by default
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@dataclass
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class EmbeddingConfig:
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"""Configuration for embedding generation."""
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preferred_method: str = "ollama" # "ollama", "ml", "hash", "auto"
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ollama_model: str = "nomic-embed-text"
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ollama_host: str = "localhost:11434"
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ml_model: str = "sentence-transformers/all-MiniLM-L6-v2"
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batch_size: int = 32
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@dataclass
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class SearchConfig:
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"""Configuration for search behavior."""
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default_limit: int = 10
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enable_bm25: bool = True
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similarity_threshold: float = 0.1
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expand_queries: bool = True # Enable automatic query expansion
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@dataclass
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class LLMConfig:
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"""Configuration for LLM synthesis and query expansion."""
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ollama_host: str = "localhost:11434"
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synthesis_model: str = "auto" # "auto", "qwen3:1.7b", "qwen2.5:1.5b", etc.
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expansion_model: str = "auto" # Usually same as synthesis_model
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max_expansion_terms: int = 8 # Maximum additional terms to add
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enable_synthesis: bool = False # Enable by default when --synthesize used
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synthesis_temperature: float = 0.3
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@dataclass
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class RAGConfig:
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"""Main RAG system configuration."""
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chunking: ChunkingConfig = None
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streaming: StreamingConfig = None
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files: FilesConfig = None
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embedding: EmbeddingConfig = None
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search: SearchConfig = None
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llm: LLMConfig = None
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def __post_init__(self):
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if self.chunking is None:
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self.chunking = ChunkingConfig()
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if self.streaming is None:
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self.streaming = StreamingConfig()
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if self.files is None:
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self.files = FilesConfig()
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if self.embedding is None:
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self.embedding = EmbeddingConfig()
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if self.search is None:
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self.search = SearchConfig()
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if self.llm is None:
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self.llm = LLMConfig()
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class ConfigManager:
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"""Manages configuration loading, saving, and validation."""
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def __init__(self, project_path: Path):
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self.project_path = Path(project_path)
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self.rag_dir = self.project_path / '.claude-rag'
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self.config_path = self.rag_dir / 'config.yaml'
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def load_config(self) -> RAGConfig:
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"""Load configuration from YAML file or create default."""
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if not self.config_path.exists():
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logger.info(f"No config found at {self.config_path}, creating default")
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config = RAGConfig()
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self.save_config(config)
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return config
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try:
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with open(self.config_path, 'r') as f:
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data = yaml.safe_load(f)
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if not data:
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logger.warning("Empty config file, using defaults")
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return RAGConfig()
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# Convert nested dicts back to dataclass instances
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config = RAGConfig()
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if 'chunking' in data:
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config.chunking = ChunkingConfig(**data['chunking'])
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if 'streaming' in data:
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config.streaming = StreamingConfig(**data['streaming'])
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if 'files' in data:
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config.files = FilesConfig(**data['files'])
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if 'embedding' in data:
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config.embedding = EmbeddingConfig(**data['embedding'])
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if 'search' in data:
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config.search = SearchConfig(**data['search'])
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return config
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except Exception as e:
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logger.error(f"Failed to load config from {self.config_path}: {e}")
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logger.info("Using default configuration")
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return RAGConfig()
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def save_config(self, config: RAGConfig):
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"""Save configuration to YAML file with comments."""
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try:
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self.rag_dir.mkdir(exist_ok=True)
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# Convert to dict for YAML serialization
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config_dict = asdict(config)
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# Create YAML content with comments
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yaml_content = self._create_yaml_with_comments(config_dict)
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with open(self.config_path, 'w') as f:
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f.write(yaml_content)
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logger.info(f"Configuration saved to {self.config_path}")
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except Exception as e:
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logger.error(f"Failed to save config to {self.config_path}: {e}")
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def _create_yaml_with_comments(self, config_dict: Dict[str, Any]) -> str:
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"""Create YAML content with helpful comments."""
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yaml_lines = [
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"# FSS-Mini-RAG Configuration",
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"# Edit this file to customize indexing and search behavior",
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"# See docs/GETTING_STARTED.md for detailed explanations",
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"",
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"# Text chunking settings",
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"chunking:",
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f" max_size: {config_dict['chunking']['max_size']} # Maximum characters per chunk",
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f" min_size: {config_dict['chunking']['min_size']} # Minimum characters per chunk",
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f" strategy: {config_dict['chunking']['strategy']} # 'semantic' (language-aware) or 'fixed'",
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"",
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"# Large file streaming settings",
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"streaming:",
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f" enabled: {str(config_dict['streaming']['enabled']).lower()}",
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f" threshold_bytes: {config_dict['streaming']['threshold_bytes']} # Files larger than this use streaming (1MB)",
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"",
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"# File processing settings",
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"files:",
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f" min_file_size: {config_dict['files']['min_file_size']} # Skip files smaller than this",
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" exclude_patterns:",
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]
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for pattern in config_dict['files']['exclude_patterns']:
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yaml_lines.append(f" - \"{pattern}\"")
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yaml_lines.extend([
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" include_patterns:",
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" - \"**/*\" # Include all files by default",
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"",
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"# Embedding generation settings",
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"embedding:",
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f" preferred_method: {config_dict['embedding']['preferred_method']} # 'ollama', 'ml', 'hash', or 'auto'",
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f" ollama_model: {config_dict['embedding']['ollama_model']}",
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f" ollama_host: {config_dict['embedding']['ollama_host']}",
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f" ml_model: {config_dict['embedding']['ml_model']}",
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f" batch_size: {config_dict['embedding']['batch_size']} # Embeddings processed per batch",
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"",
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"# Search behavior settings",
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"search:",
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f" default_limit: {config_dict['search']['default_limit']} # Default number of results",
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f" enable_bm25: {str(config_dict['search']['enable_bm25']).lower()} # Enable keyword matching boost",
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f" similarity_threshold: {config_dict['search']['similarity_threshold']} # Minimum similarity score",
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f" expand_queries: {str(config_dict['search']['expand_queries']).lower()} # Enable automatic query expansion",
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"",
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"# LLM synthesis and query expansion settings",
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"llm:",
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f" ollama_host: {config_dict['llm']['ollama_host']}",
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f" synthesis_model: {config_dict['llm']['synthesis_model']} # 'auto', 'qwen3:1.7b', etc.",
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f" expansion_model: {config_dict['llm']['expansion_model']} # Usually same as synthesis_model",
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f" max_expansion_terms: {config_dict['llm']['max_expansion_terms']} # Maximum terms to add to queries",
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f" enable_synthesis: {str(config_dict['llm']['enable_synthesis']).lower()} # Enable synthesis by default",
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f" synthesis_temperature: {config_dict['llm']['synthesis_temperature']} # LLM temperature for analysis",
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])
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return '\n'.join(yaml_lines)
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def update_config(self, **kwargs) -> RAGConfig:
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"""Update specific configuration values."""
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config = self.load_config()
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for key, value in kwargs.items():
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if hasattr(config, key):
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setattr(config, key, value)
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else:
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logger.warning(f"Unknown config key: {key}")
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self.save_config(config)
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return config |