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stack/docs/scratchpads/orch-110-git-ops.md
Jason Woltje 5d348526de feat(#71): implement graph data API
Implemented three new API endpoints for knowledge graph visualization:

1. GET /api/knowledge/graph - Full knowledge graph
   - Returns all entries and links with optional filtering
   - Supports filtering by tags, status, and node count limit
   - Includes orphan detection (entries with no links)

2. GET /api/knowledge/graph/stats - Graph statistics
   - Total entries and links counts
   - Orphan entries detection
   - Average links per entry
   - Top 10 most connected entries
   - Tag distribution across entries

3. GET /api/knowledge/graph/:slug - Entry-centered subgraph
   - Returns graph centered on specific entry
   - Supports depth parameter (1-5) for traversal distance
   - Includes all connected nodes up to specified depth

New Files:
- apps/api/src/knowledge/graph.controller.ts
- apps/api/src/knowledge/graph.controller.spec.ts

Modified Files:
- apps/api/src/knowledge/dto/graph-query.dto.ts (added GraphFilterDto)
- apps/api/src/knowledge/entities/graph.entity.ts (extended with new types)
- apps/api/src/knowledge/services/graph.service.ts (added new methods)
- apps/api/src/knowledge/services/graph.service.spec.ts (added tests)
- apps/api/src/knowledge/knowledge.module.ts (registered controller)
- apps/api/src/knowledge/dto/index.ts (exported new DTOs)
- docs/scratchpads/71-graph-data-api.md (implementation notes)

Test Coverage: 21 tests (all passing)
- 14 service tests including orphan detection, filtering, statistics
- 7 controller tests for all three endpoints

Follows TDD principles with tests written before implementation.
All code quality gates passed (lint, typecheck, tests).

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2026-02-02 15:27:00 -06:00

103 lines
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Markdown

# ORCH-110: Git Operations (clone, commit, push)
## Objective
Implement git operations service using simple-git library to support agent git workflows.
## Acceptance Criteria
- [x] `src/git/git-operations.service.ts` implemented
- [x] Clone repository
- [x] Create branch
- [x] Commit changes with message
- [x] Push to remote
- [x] Git config (user.name, user.email from environment)
- [x] NestJS service with proper dependency injection
- [x] Comprehensive unit tests following TDD principles
- [x] Mock simple-git for unit tests (no actual git operations)
- [x] Test coverage >= 85%
## Approach
Following TDD (Red-Green-Refactor):
1. **RED**: Write failing tests first
- Test git config setup
- Test clone repository
- Test create branch
- Test commit changes
- Test push to remote
- Test error handling
2. **GREEN**: Implement minimum code to pass tests
- Create GitOperationsService with NestJS
- Implement each git operation
- Use simple-git library
- Read config from ConfigService
3. **REFACTOR**: Improve code quality
- Extract common patterns
- Improve error messages
- Add type safety
## Implementation Notes
### Service Interface
```typescript
class GitOperationsService {
async cloneRepository(url: string, localPath: string): Promise<void>
async createBranch(localPath: string, branchName: string): Promise<void>
async commit(localPath: string, message: string): Promise<void>
async push(localPath: string, remote?: string, branch?: string): Promise<void>
}
```
### Dependencies
- simple-git: Git operations
- @nestjs/config: Configuration
- ConfigService: Access git config (userName, userEmail)
### Testing Strategy
- Mock simple-git using vitest.fn()
- No actual git operations in tests
- Test all success paths
- Test error handling
- Verify git config is set
- Verify correct parameters passed to simple-git
## Progress
- [x] Create test file with failing tests
- [x] Implement GitOperationsService
- [x] All tests passing
- [x] Coverage >= 85%
- [x] Update git.module.ts
- [x] Create types file
- [x] Add index.ts exports
## Testing Results
```bash
pnpm test src/git/git-operations.service.spec.ts --run
# Test Files 1 passed (1)
# Tests 14 passed (14)
pnpm test src/git/git-operations.service.spec.ts --coverage --run
# Coverage: 100% statements, 85.71% branches, 100% functions, 100% lines
# Exceeds 85% requirement ✓
pnpm typecheck
# No errors ✓
```
## Notes
- simple-git already in package.json (v3.27.0)
- Git config already in orchestrator.config.ts
- Service uses dependency injection for testability
- All git operations async
- Error handling preserves original error messages