Problem:
- Multiple instances of the Roo Code application were launching separate MCP server instances
- This led to unnecessary resource consumption and potential conflicts between instances
Solution:
1. Created new McpServerManager singleton class to manage MCP server instances:
- Static getInstance() method ensures only one McpHub instance exists
- Tracks registered ClineProvider instances
- Handles cleanup on extension deactivation
2. Modified ClineProvider class:
- Changed mcpHub from private to protected
- Added getMcpHub() public getter method
- Updated initialization to use McpServerManager
- Added unregister logic in dispose()
3. Updated extension.ts to handle cleanup:
- Added McpServerManager cleanup in deactivate()
Technical Implementation:
- Uses WeakRef for provider tracking to allow proper garbage collection
- Maintains global state to track instance IDs
- Implements proper cleanup of resources on disposal
- Ensures backward compatibility with existing code
This change significantly improves resource usage and prevents potential conflicts
between multiple instances of the application while maintaining all existing
functionality.