METADATA-CONSOLIDATION.mdโข10.3 kB
# ๐ฏ Metadata-Driven Configuration Consolidation
## Overview
This document describes the comprehensive consolidation of all hardcoded source configurations into a centralized, metadata-driven system. The changes eliminate scattered configuration values throughout the codebase and provide a single source of truth for all documentation source settings.
## ๐ Key Changes Summary
### 1. **Centralized Metadata System**
- **Moved** `data/metadata.json` โ `src/metadata.json`
- **Extended** metadata.json with comprehensive source configurations
- **Created** type-safe APIs for accessing all configuration data
- **Eliminated** all hardcoded configuration values from source code
### 2. **Enhanced Configuration Structure**
- **12 documentation sources** with complete metadata
- **Source paths, URLs, and anchor styles** for documentation generation
- **Context-specific boosts** for intelligent query routing
- **Library ID mappings** for source resolution
- **Context emojis** for UI presentation
- **Synonyms and acronyms** for query expansion
### 3. **Simplified Core Configuration**
- **Removed** hardcoded `SOURCE_BOOSTS` from `config.ts`
- **Centralized** all source-specific settings in metadata.json
- **Maintained** core system settings (RETURN_K, DB_PATH, etc.)
## ๐ Files Modified
### **Core Configuration Files**
#### `src/metadata.json` โจ **NEW LOCATION**
```json
{
"version": 1,
"sources": [
{
"id": "sapui5",
"libraryId": "/sapui5",
"sourcePath": "sapui5-docs/docs",
"baseUrl": "https://ui5.sap.com",
"pathPattern": "/#/topic/{file}",
"anchorStyle": "custom",
"boost": 0.1,
"tags": ["ui5", "frontend", "javascript"]
}
// ... 11 more sources
],
"contextBoosts": {
"UI5": { "/sapui5": 0.9, "/openui5-api": 0.9 },
"CAP": { "/cap": 1.0, "/sapui5": 0.2 }
// ... more contexts
},
"libraryMappings": {
"openui5-api": "sapui5",
"openui5-samples": "sapui5"
// ... more mappings
},
"contextEmojis": {
"CAP": "๐๏ธ", "UI5": "๐จ", "wdi5": "๐งช"
// ... more emojis
}
}
```
#### `src/lib/config.ts` ๐ง **SIMPLIFIED**
```typescript
// Before: 25 lines with hardcoded SOURCE_BOOSTS
export const CONFIG = {
RETURN_K: Number(process.env.RETURN_K || 25),
DB_PATH: "dist/data/docs.sqlite",
METADATA_PATH: "src/metadata.json", // Updated path
USE_OR_LOGIC: true,
// SOURCE_BOOSTS removed - now in metadata.json
};
```
#### `src/lib/metadata.ts` โจ **ENHANCED**
**New comprehensive API with 12 functions:**
```typescript
// Documentation URL configuration
export function getDocUrlConfig(libraryId: string): DocUrlConfig | null
export function getAllDocUrlConfigs(): Record<string, DocUrlConfig>
// Source path management
export function getSourcePath(libraryId: string): string | null
export function getAllSourcePaths(): Record<string, string>
// Context-aware boosts
export function getContextBoosts(context: string): Record<string, number>
export function getAllContextBoosts(): Record<string, Record<string, number>>
// Library mappings
export function getLibraryMapping(sourceId: string): string | null
export function getAllLibraryMappings(): Record<string, string>
// UI presentation
export function getContextEmoji(context: string): string
export function getAllContextEmojis(): Record<string, string>
// Source lookup
export function getSourceByLibraryId(libraryId: string): SourceMeta | null
export function getSourceById(id: string): SourceMeta | null
```
### **Updated Implementation Files**
#### `src/lib/search.ts` ๐ **REFACTORED**
```typescript
// Before: Hardcoded library mappings (15 lines)
const mapping: Record<string, string> = {
'sapui5': 'sapui5',
'openui5-api': 'sapui5', // Map UI5 API to sapui5 source
// ... more hardcoded mappings
};
// After: Metadata-driven (1 line)
const mappings = getAllLibraryMappings();
return mappings[sourceId] || sourceId;
```
#### `src/lib/localDocs.ts` ๐ **MAJOR REFACTOR**
**Removed hardcoded configurations:**
- โ `DOC_URL_CONFIGS` (45 lines) โ โ
`getDocUrlConfig()`
- โ Source path mappings (75 lines ร 3 locations) โ โ
`getSourcePath()`
- โ Context boost logic (50 lines) โ โ
`getContextBoosts()`
- โ Context emojis (10 lines) โ โ
`getContextEmoji()`
**Total reduction: ~250+ lines of hardcoded configuration**
### **Deployment Configuration**
#### `ecosystem.config.cjs` ๐ **SIMPLIFIED**
```javascript
// Before: 9 reranker environment variables per service
env: {
RERANKER_MODEL: "", SEARCH_K: "100", W_RERANKER: "0.8",
W_BM25: "0.2", RERANKER_TIMEOUT_MS: "1000", // ... more
}
// After: Clean BM25-only configuration
env: {
NODE_ENV: "production",
RETURN_K: "25" // Centralized result limit
}
```
#### `.github/workflows/deploy-mcp-sap-docs.yml` ๐ **UPDATED**
- Removed transformers cache directory creation
- Updated deployment comments for BM25-only system
- Added metadata.json existence check
## ๐ฏ Benefits Achieved
### **1. Single Source of Truth**
- All source configurations in one file (`src/metadata.json`)
- No more hunting through multiple files for settings
- Consistent configuration across all components
### **2. Easy Maintenance**
- Add new documentation sources without code changes
- Modify boosts, URLs, or paths in metadata.json only
- No need to update multiple hardcoded locations
### **3. Type Safety**
- Comprehensive TypeScript interfaces for all metadata
- Compile-time validation of configuration access
- IntelliSense support for all configuration properties
### **4. Cleaner Codebase**
- **~250+ lines** of hardcoded configuration removed
- Simplified core configuration files
- More readable and maintainable code
### **5. Flexible Configuration**
- Environment variable overrides still supported
- Easy to add new configuration properties
- Backward compatibility maintained
## ๐ง Migration Impact
### **Zero Breaking Changes**
- All existing functionality preserved
- Same search results and behavior
- All tests passing (TypeScript + smoke tests)
### **Performance Impact**
- Minimal: Metadata loaded once at startup
- No runtime performance degradation
- Same search speed and accuracy
### **Deployment Impact**
- Simplified PM2 configuration
- Faster deployment (no model downloads)
- Reduced memory usage in production
## ๐ Configuration Comparison
### **Before: Scattered Configuration**
```
src/lib/config.ts - SOURCE_BOOSTS (9 sources)
src/lib/localDocs.ts - DOC_URL_CONFIGS (11 sources)
src/lib/localDocs.ts - Source paths (12 sources ร 3 locations)
src/lib/localDocs.ts - Context boosts (7 contexts)
src/lib/localDocs.ts - Context emojis (7 emojis)
src/lib/search.ts - Library mappings (9 mappings)
ecosystem.config.cjs - Reranker env vars (9 vars ร 3 services)
```
### **After: Centralized Configuration**
```
src/metadata.json - ALL source configurations
src/lib/metadata.ts - Type-safe APIs for access
src/lib/config.ts - Core system settings only
ecosystem.config.cjs - Essential env vars only
```
## ๐ Usage Examples
### **Adding a New Documentation Source**
```json
// Just add to src/metadata.json - no code changes needed!
{
"id": "new-docs",
"type": "documentation",
"libraryId": "/new-docs",
"sourcePath": "new-docs/content",
"baseUrl": "https://example.com/docs",
"pathPattern": "/{file}",
"anchorStyle": "github",
"boost": 0.05,
"tags": ["new", "documentation"]
}
```
### **Modifying Context Boosts**
```json
// Adjust in src/metadata.json
"contextBoosts": {
"New Context": {
"/new-docs": 1.0,
"/sapui5": 0.3
}
}
```
### **Using the New APIs**
```typescript
// Get source path for any library
const sourcePath = getSourcePath('/sapui5');
// Returns: "sapui5-docs/docs"
// Get URL configuration
const urlConfig = getDocUrlConfig('/cap');
// Returns: { baseUrl: "https://cap.cloud.sap", pathPattern: "/docs/{file}", ... }
// Get context-specific boosts
const boosts = getContextBoosts('UI5');
// Returns: { "/sapui5": 0.9, "/openui5-api": 0.9, ... }
```
## ๐งช Testing & Validation
### **Comprehensive Testing**
- โ
TypeScript compilation successful
- โ
All smoke tests passing
- โ
No linting errors
- โ
Functionality preserved
- โ
Performance maintained
### **Validation Steps**
1. **Build Test**: `npm run build:tsc` - No compilation errors
2. **Smoke Test**: `npm run test:smoke` - All search functionality working
3. **Integration Test**: All metadata APIs returning expected values
4. **Deployment Test**: PM2 configuration validated
## ๐ฎ Future Enhancements
### **Easy Extensions**
- **New Sources**: Add to metadata.json without code changes
- **Custom Boosts**: Modify context boosts per environment
- **A/B Testing**: Switch configurations via environment variables
- **Dynamic Updates**: Hot-reload metadata without restarts
### **Advanced Features**
- **User Preferences**: Per-user source preferences
- **Analytics**: Track which sources are most useful
- **Caching**: Cache frequently accessed metadata
- **Validation**: Schema validation for metadata.json
## ๐ Metrics
### **Code Reduction**
- **~250+ lines** of hardcoded configuration removed
- **5 files** significantly simplified
- **12 new APIs** for type-safe configuration access
- **1 centralized** metadata file
### **Maintainability Improvement**
- **100%** of source configurations centralized
- **0** breaking changes to existing functionality
- **12** type-safe APIs for configuration access
- **1** single file to modify for source changes
## ๐ Conclusion
The metadata-driven configuration consolidation successfully transforms the SAP Docs MCP system from a scattered, hardcoded configuration approach to a centralized, maintainable, and type-safe metadata system.
**Key Achievements:**
- โ
**Single source of truth** for all configurations
- โ
**Zero breaking changes** to existing functionality
- โ
**Comprehensive APIs** for type-safe configuration access
- โ
**Simplified maintenance** and deployment
- โ
**Future-proof architecture** for easy extensions
The system is now significantly more maintainable, flexible, and ready for future enhancements while preserving all existing functionality and performance characteristics.