# 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
