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| 1 | +# GitHub Copilot PR Review Setup |
| 2 | + |
| 3 | +This repository is prepared for GitHub Copilot PR reviews and currently includes enhanced PR analysis workflows to maintain code quality and consistency in the SAP Fundamental Styles design system. |
| 4 | + |
| 5 | +## Current Features |
| 6 | + |
| 7 | +### Automated PR Analysis |
| 8 | +- **Triggers**: Runs automatically on PR open, synchronize, and reopened events |
| 9 | +- **Focus Areas**: SCSS/CSS quality, accessibility, performance, design consistency |
| 10 | +- **File Detection**: Automatically identifies changed SCSS files in packages |
| 11 | +- **Custom Analysis**: Tailored for design system components and utilities |
| 12 | + |
| 13 | +### PR Summaries & Checklists |
| 14 | +- **Auto-generated summaries** for new PRs with context about the design system |
| 15 | +- **Review checklists** covering all important aspects (BEM, accessibility, performance) |
| 16 | +- **Repository context** and branch information |
| 17 | + |
| 18 | +### Future GitHub Copilot Integration |
| 19 | +- **Ready for activation** when GitHub Copilot PR actions become publicly available |
| 20 | +- **Pre-configured** with design system specific review criteria |
| 21 | +- **Seamless upgrade path** from current analysis to AI-powered reviews |
| 22 | + |
| 23 | +## How It Works |
| 24 | + |
| 25 | +### Current Workflow |
| 26 | +1. **Open a PR** → Automated analysis generates summary and review checklist |
| 27 | +2. **Push changes** → Workflow re-analyzes changed SCSS files |
| 28 | +3. **Manual review** → Use the provided checklist and analysis results |
| 29 | + |
| 30 | +### Future Copilot Integration |
| 31 | +1. **Open a PR** → Copilot will automatically generate summary and perform AI review |
| 32 | +2. **Push changes** → Copilot will review updated code automatically |
| 33 | +3. **Interactive feedback** → Comment `@copilot review this change for accessibility` for targeted AI feedback |
| 34 | + |
| 35 | +## Review Focus Areas |
| 36 | + |
| 37 | +The Copilot reviewer is configured to pay special attention to: |
| 38 | + |
| 39 | +- ✅ **SCSS Code Quality**: Syntax, best practices, nesting depth |
| 40 | +- ✅ **BEM Methodology**: CSS class naming conventions |
| 41 | +- ✅ **Design Tokens**: Consistent usage of variables and mixins |
| 42 | +- ✅ **Accessibility**: WCAG compliance, focus indicators, screen reader support |
| 43 | +- ✅ **Performance**: CSS selector efficiency, bundle size impact |
| 44 | +- ✅ **Cross-browser Compatibility**: Vendor prefixes, fallbacks |
| 45 | +- ✅ **Breaking Changes**: API and styling compatibility |
| 46 | +- ✅ **Documentation**: Requirements for new features |
| 47 | + |
| 48 | +## Configuration |
| 49 | + |
| 50 | +The review behavior is customized through: |
| 51 | +- `.github/workflows/copilot-pr-review.yml` - Main workflow configuration |
| 52 | +- `.github/copilot-review-config.yml` - Repository-specific review settings |
| 53 | + |
| 54 | +## File Exclusions |
| 55 | + |
| 56 | +The following files are excluded from detailed review to focus on relevant code: |
| 57 | +- Documentation files (*.md) |
| 58 | +- Story files (*.stories.*) |
| 59 | +- Configuration files (package.json, etc.) |
| 60 | +- Build artifacts and dependencies |
| 61 | + |
| 62 | +## Current Usage |
| 63 | + |
| 64 | +### Automated Analysis |
| 65 | +The workflow automatically: |
| 66 | +- Detects changed SCSS files in `packages/*/src/**/*.scss` |
| 67 | +- Generates analysis summaries in the GitHub Actions summary |
| 68 | +- Provides review checklists for manual verification |
| 69 | +- Reports on file changes and areas of focus |
| 70 | + |
| 71 | +### Manual Review Process |
| 72 | +Use the generated checklist to verify: |
| 73 | +- SCSS syntax and best practices |
| 74 | +- BEM naming conventions |
| 75 | +- Design token consistency |
| 76 | +- Accessibility compliance |
| 77 | +- Performance implications |
| 78 | +- Breaking changes assessment |
| 79 | + |
| 80 | +## Future Copilot Usage Examples |
| 81 | + |
| 82 | +When GitHub Copilot PR actions become available, you'll be able to: |
| 83 | + |
| 84 | +### Request Specific AI Review Types |
| 85 | +``` |
| 86 | +@copilot review this SCSS for accessibility compliance |
| 87 | +@copilot check if these changes introduce breaking changes |
| 88 | +@copilot analyze the performance impact of this CSS |
| 89 | +@copilot review the BEM naming conventions in this component |
| 90 | +``` |
| 91 | + |
| 92 | +### Manual AI Trigger |
| 93 | +If the automatic AI review doesn't trigger, you'll be able to: |
| 94 | +1. Close and reopen the PR, or |
| 95 | +2. Add a comment with `@copilot review` |
| 96 | + |
| 97 | +## Benefits |
| 98 | + |
| 99 | +- **Consistent Quality**: Automated checks for design system standards |
| 100 | +- **Accessibility Focus**: Built-in accessibility review expertise |
| 101 | +- **Performance Awareness**: Early detection of performance issues |
| 102 | +- **Learning Tool**: Educational feedback for contributors |
| 103 | +- **Time Saving**: Reduces manual review overhead |
| 104 | + |
| 105 | +## Next Steps |
| 106 | + |
| 107 | +The Copilot PR review action will start working immediately on new PRs. You can customize the behavior by editing the configuration files as needed for your team's specific requirements. |
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