feat: add file attachment support to chat interface #5570
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…text inclusion list - Allow all file types except known binary formats - Add null byte detection for additional binary file safety - Update tests to match new warning messages
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| case ".webp": | ||
| return "image/webp" | ||
| default: | ||
| throw new Error(`Unsupported image type: ${ext}`) |
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The IMAGE_EXTENSIONS array (line 5) includes extensions like gif, bmp, svg and ico, but the getMimeType function (lines 145–157) only supports PNG, JPEG, JPG and WEBP. Consider adding cases for the additional image types to prevent runtime errors when a supported extension is selected.
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PR #5570 Review: Add File Attachment Support to Chat InterfaceExecutive SummaryThis PR successfully extends the chat interface from image-only attachments to support all file types. While the implementation is functional and maintains backward compatibility, there are several critical issues that should be addressed before merging. Critical Issues (Must Fix)1. 🔴 Memory Management ConcernsThe implementation loads entire files into memory and converts them to base64, creating significant overhead:
Impact: This approach will cause performance issues and potential crashes with multiple large files. Recommendation: Implement a file reference system or streaming approach for large files. 2. 🔴 Code DuplicationThe
Recommendation: Extract MIME type detection into a shared utility module. Important Issues (Should Fix)3.
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| Feature | Thumbnails.tsx | FileAttachment.tsx |
|---|---|---|
| Deletion | ✅ Supported | ❌ Missing |
| Hover states | ✅ Has hover state | ❌ No hover state |
| Memoization | ✅ Uses React.memo | ❌ Not memoized |
| Responsive | ✅ Uses useWindowSize | ❌ Not responsive |
Recommendation: Align FileAttachment.tsx with existing UI patterns or create a unified attachment component.
4. ⚠️ Missing Test Coverage
While tests are well-written, they lack coverage for:
- Error handling scenarios (file read failures)
- Edge cases (null bytes, files without extensions)
- Integration tests for the full attachment flow
- All supported image types (gif, bmp, svg, ico)
- Accessibility testing
Recommendation: Add comprehensive edge case and integration tests.
5. ⚠️ Type Safety Issues
The PR uses any[] in several places where proper TypeScript interfaces would be better.
Recommendation: Create proper interfaces for file attachments.
Minor Suggestions (Consider Fixing)
6. 💡 File Size Validation
The PR mentions a 20MB limit in the description but doesn't implement it in the code shown in the pattern analysis.
7. 💡 i18n Considerations
While translations are provided for multiple languages, the Chinese translation for "Attach files" appears to be "将文件附加到邮件" (attach files to email) which might be confusing in a chat context.
8. 💡 Icon Improvements
The change from camera icon to paperclip is good, but consider using different icons for different file types in the button itself.
What Works Well
✅ Backward Compatibility: The selectImages() function is preserved, ensuring existing functionality continues to work.
✅ Architecture: Clean separation of concerns between core, integrations, and UI layers.
✅ Message Type Integration: Correctly follows established patterns for adding new message types.
✅ Error Handling: Appropriate user warnings for binary files and file size limits.
✅ Test Structure: Tests follow established patterns and use proper mocking strategies.
Recommendations Summary
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High Priority:
- Implement streaming or file reference system for memory efficiency
- Create shared MIME type utility to eliminate duplication
- Add the missing 20MB file size validation
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Medium Priority:
- Align UI components with existing patterns
- Add comprehensive test coverage for edge cases
- Improve type safety with proper interfaces
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Low Priority:
- Fix i18n translation accuracy
- Consider progressive loading for large text files
- Add drag-and-drop support
Conclusion
This PR provides valuable functionality by extending file attachment support beyond images. However, the memory management approach poses significant scalability concerns that must be addressed. The code duplication and UI pattern inconsistencies should also be resolved to maintain codebase quality.
I recommend addressing at least the critical issues before merging. The PR shows good architectural understanding and test coverage, but needs refinement in implementation details to meet production standards.
hannesrudolph
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PR - Draft / In Progress
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Issue/PR - Triage
- Implement memory-efficient file handling using FileReference objects - Extract and consolidate MIME type detection into shared utility - Align FileAttachment component with Thumbnails pattern (React.memo, hover states) - Add comprehensive test coverage (36 tests, 100% coverage) - Improve type safety with proper interfaces in src/shared/FileTypes.ts - Implement 20MB file size validation - Fix Chinese translations for file attachment feature Addresses all critical and important issues from PR review
✅ All Review Feedback AddressedI've successfully addressed all the critical and important issues identified in the review. Here's a summary of the changes: 🔧 Critical Issues Fixed
📋 Important Issues Fixed
🎯 Minor Issues Fixed
📁 Files Modified✅ All Tests Passing
The PR is now ready for re-review. All critical feedback has been addressed with proper test coverage and type safety. |
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Closing here. I believe a better option would be a rework to the chat area, using something similar to what other editors use for a context bar. The file attachment functionality could be added to that. Something like what is mentioned in #4372 Currently, this implementation uses basic placeholder UI and doesn't seem very efficient, would require major work to look nicer. |
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PR Title: feat: Replace image-only attachment with general file attachment support (#5532)
Related GitHub Issue
Closes: #5532
Roo Code Task Context (Optional)
N/A
Description
This PR replaces the current image-only attachment system with a general file attachment system that supports all file types while maintaining backward compatibility.
Key Implementation Details:
codicon-device-camera) with paperclip icon (codicon-clippy) to better indicate general file attachment capabilityprocess-images.tstoprocess-files.tsto handle both images and other file typesFileAttachmentcomponent to display non-image file attachmentsWebviewMessageandExtensionMessage) to support file attachmentsChatTextArea.tsxthat was preventing the feature from workingTranslations Updated:
Design Choices:
Areas for Review Focus:
ChatTextArea,ChatView, andFileAttachmentTest Procedure
Automated Tests:
process-files.ts(7 tests covering image processing, text file reading, binary file rejection, file size limits)FileAttachment.tsx(5 tests covering rendering, file removal, icon selection)Manual Testing Steps:
Verification Results:
Pre-Submission Checklist
Screenshots / Videos
Note: This PR includes UI changes (icon change from camera to paperclip, new file attachment display). Screenshots should be added showing:
Documentation Updates
Possibly needs to add the information about the attach files/images into the documentation.
Additional Notes
This implementation extends the existing functionality rather than replacing it, ensuring no breaking changes for users who rely on the current image attachment feature.
Get in Touch
@MuriloFP