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OpenSpec/openspec/changes/add-diff-command/tasks.md
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Tabish Bidiwale 183b82f266 feat: enhance diff command with word-level highlighting and better formatting
- Add word-level diff highlighting for changed lines
- Improve file headers with status indicators and statistics
- Add summary view showing total files changed and lines modified
- Enhanced visual formatting with separators and colors
- Extract magic strings as constants for maintainability
2025-08-13 15:29:43 +10:00

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# Implementation Tasks
## 1. Core Implementation
- [x] 1.1 Create `src/core/diff.ts` with diff logic
- [x] 1.2 Implement change directory scanning
- [x] 1.3 Implement file comparison using unified diff format
- [x] 1.4 Add color support for terminal output
## 2. CLI Integration
- [x] 2.1 Add diff command to `src/cli/index.ts`
- [x] 2.2 Implement interactive change selection when no argument provided
- [x] 2.3 Add error handling for missing changes
## 3. Enhancements
- [x] 3.1 Add word-level diff highlighting for better readability
- [x] 3.2 Improve file headers with status and statistics
- [x] 3.3 Add summary view with file counts and line changes
## 4. Testing
- [ ] 4.1 Test diff generation for modified files
- [ ] 4.2 Test handling of new files
- [ ] 4.3 Test handling of deleted files
- [ ] 4.4 Test interactive mode