npm-search-mcp-server

""" MCP Memory Service Copyright (c) 2024 Heinrich Krupp Licensed under the MIT License. See LICENSE file in the project root for full license text. """ import os import sys from pathlib import Path import logging logger = logging.getLogger(__name__) def validate_and_create_path(path: str) -> str: """Validate and create a directory path, ensuring it's writable.""" try: # Convert to absolute path abs_path = os.path.abspath(path) # Create directory if it doesn't exist os.makedirs(abs_path, exist_ok=True) # Check if directory is writable test_file = os.path.join(abs_path, '.write_test') try: with open(test_file, 'w') as f: f.write('test') os.remove(test_file) except Exception as e: raise PermissionError(f"Directory {abs_path} is not writable: {str(e)}") logger.info(f"Directory {abs_path} is writable.") return abs_path except Exception as e: logger.error(f"Error validating path {path}: {str(e)}") raise # Determine base directory - prefer local over Cloud def get_base_directory() -> str: """Get base directory for storage, with fallback options.""" # First choice: Environment variable if base_dir := os.getenv('MCP_MEMORY_BASE_DIR'): return validate_and_create_path(base_dir) # Second choice: Local app data directory home = str(Path.home()) if sys.platform == 'darwin': # macOS base = os.path.join(home, 'Library', 'Application Support', 'mcp-memory') elif sys.platform == 'win32': # Windows base = os.path.join(os.getenv('LOCALAPPDATA', ''), 'mcp-memory') else: # Linux and others base = os.path.join(home, '.local', 'share', 'mcp-memory') return validate_and_create_path(base) # Initialize paths try: BASE_DIR = get_base_directory() CHROMA_PATH = validate_and_create_path(os.path.join(BASE_DIR, 'chroma_db')) BACKUPS_PATH = validate_and_create_path(os.path.join(BASE_DIR, 'backups')) except Exception as e: logger.error(f"Fatal error initializing paths: {str(e)}") sys.exit(1) # Server settings SERVER_NAME = "memory" SERVER_VERSION = "0.2.0" # ChromaDB settings CHROMA_SETTINGS = { "anonymized_telemetry": False, "allow_reset": True, "is_persistent": True, "chroma_db_impl": "duckdb+parquet" } # Collection settings COLLECTION_METADATA = { "hnsw:space": "cosine", "hnsw:construction_ef": 100, # Increased for better accuracy "hnsw:search_ef": 100 # Increased for better search results }