Feature: Add SVN commit support with GUI interface similar to Git commits

### What specific problem does this solve?

### 🎯 Feature Summary
Add SVN (Subversion) integration support to Roo Code, providing the same level of functionality that currently exists for Git repositories. This enables users working with SVN repositories to leverage Roo Code's AI-powered commit assistance and version control features.

### 💡 Motivation & User Value
Many enterprise and legacy projects still rely on SVN for version control. Currently, Roo Code only supports Git repositories, leaving SVN users unable to benefit from AI-assisted commit message generation, change analysis, and version control integration features. This feature would:

- Expand user base : Enable SVN users to adopt Roo Code
- Feature parity : Provide equivalent functionality to existing Git integration
- Enterprise adoption : Support organizations using SVN in their development workflow
- Seamless experience : Allow mixed Git/SVN teams to use the same tool

### Additional context (optional)

![Image](https://github.com/user-attachments/assets/9f564a8a-65af-4198-9d5c-7183c96f8b80)

### Roo Code Task Links (Optional)

_No response_

### Request checklist

- [x] I've searched existing Issues and Discussions for duplicates
- [x] This describes a specific problem with clear impact and context

### Interested in implementing this?

- [x] Yes, I'd like to help implement this feature

### Implementation requirements

- [x] I understand this needs approval before implementation begins

### How should this be solved? (REQUIRED if contributing, optional otherwise)

### 🔧 Detailed Implementation
Based on my development work, I have implemented the following SVN support:
 Core SVN Integration Features:
1.  SVN Commit Search & Analysis
   
   - SVN commit history search functionality
   - Commit information parsing and display
   - Integration with chat text area for commit references
   - Context menu support for SVN commit operations
2.  SVN Status & Change Detection
   
   - Real-time SVN working directory status monitoring
   - Support for svn-changes mentions in chat
   - Automatic inclusion of SVN status and diff information in API requests
   - Debug logging for troubleshooting
3.  Untracked Files Preview
   
   - Content preview for untracked files (first 3 files)
   - Smart file type detection and preview
   - Helps developers quickly understand uncommitted changes
4.  SVN Version References
   
   - Support for SVN revision number mentions (e.g., r12345 )
   - SVN commit information retrieval tools
   - Enhanced mention regex patterns for SVN-specific references
   - Type definitions and formatting functions for SVN mentions
5.  Debug & Diagnostics
   
   - debugSvn command for checking SVN installation and repository status
   - Comprehensive SVN logging system ( SvnLogger )
   - Enhanced error handling and troubleshooting capabilities
   - Command registration in package.json
6.  Code Quality & Localization
   
   - English documentation and comments
   - SVN directory exclusion and improved error handling
   - File system integration

### How will we know it works? (Acceptance Criteria - REQUIRED if contributing, optional otherwise)

## 🧪 **Acceptance Criteria**

### **1. SVN Repository Detection & Basic Integration**
**Given** a user opens VS Code in a directory containing an SVN repository  
**When** they activate Roo Code extension  
**Then** the extension should automatically detect the SVN repository  
**And** SVN-specific commands should be available in the command palette  
**And** the extension should work without interfering with any existing Git repositories  
**But** it should NOT attempt to use Git commands on SVN repositories  

### **2. SVN Commit Search & History**
**Given** a user is in an SVN repository with commit history  
**When** they use the SVN commit search functionality  
**Then** they should see a list of recent SVN commits with revision numbers  
**And** each commit should display revision number, author, date, and message  
**And** they should be able to reference commits using `r12345` format in chat  
**But** it should NOT show Git commit hashes or Git-specific information  

### **3. SVN Status & Change Detection**
**Given** a user has modified files in an SVN working directory  
**When** they mention `svn-changes` in the chat  
**Then** the AI should receive current SVN status information (modified, added, deleted files)  
**And** the AI should receive diff information for changed files  
**And** the status should update in real-time as files are modified  
**But** it should NOT include files that are ignored by SVN  

### **4. Untracked Files Preview**
**Given** a user has untracked files in their SVN working directory  
**When** the SVN status is checked  
**Then** the first 3 untracked files should show content preview (for small files)  
**And** file type information should be displayed for larger files  
**And** the preview should help users understand what files are untracked  
**But** it should NOT attempt to preview binary files or extremely large files  

### **5. SVN Version References & Mentions**
**Given** a user wants to reference a specific SVN revision  
**When** they type `r12345` or similar SVN revision format in chat  
**Then** the system should recognize it as an SVN revision reference  
**And** it should fetch and display relevant commit information  
**And** the AI should understand the context of that specific revision  
**But** it should NOT confuse SVN revisions with Git commit hashes  

### **6. Debug & Diagnostics**
**Given** a user encounters issues with SVN integration  
**When** they run the `debugSvn` command  
**Then** they should see comprehensive diagnostic information about SVN installation  
**And** they should see current repository status and configuration  
**And** detailed logs should be available for troubleshooting  
**And** error messages should be clear and actionable  
**But** sensitive information (like credentials) should NOT be logged  

### **7. AI-Powered Commit Assistance**
**Given** a user has staged changes in their SVN working directory  
**When** they request AI assistance for commit messages  
**Then** the AI should analyze SVN diffs and status  
**And** generate appropriate commit messages based on SVN conventions  
**And** the commit message should reflect the actual changes made  
**But** it should NOT suggest Git-specific commit formats or commands  

### **8. UI/UX Consistency**
**Given** a user familiar with Roo Code's Git integration  
**When** they use SVN features  
**Then** the interface should feel familiar and consistent  
**And** SVN commands should appear in appropriate menus and contexts  
**And** error handling should be graceful and informative  
**But** Git and SVN features should NOT conflict or interfere with each other  

### **9. Cross-Platform Compatibility**
**Given** users on different operating systems (Windows, macOS, Linux)  
**When** they use the SVN integration  
**Then** all features should work consistently across platforms  
**And** SVN command-line tools should be detected automatically  
**And** file paths should be handled correctly for each OS  
**But** it should NOT assume specific SVN installation paths  

### **10. Error Handling & Edge Cases**
**Given** various error scenarios (no SVN installed, corrupted repository, network issues)  
**When** users attempt to use SVN features  
**Then** clear, helpful error messages should be displayed  
**And** the extension should gracefully degrade functionality  
**And** users should receive guidance on how to resolve issues  
**But** the extension should NOT crash or become unresponsive  

### Technical considerations (REQUIRED if contributing, optional otherwise)

# Technical Consideration Analysis for SVN Functionality Implementation

## 1. Implementation Approach & Architecture

### Architectural Alignment with Git Implementation

The SVN functionality has been implemented following a mirror architecture pattern that exactly parallels the existing Git implementation:

- Message Flow Architecture : Maintains the established WebviewMessage → ExtensionMessage communication pattern
- Type System Symmetry : GitCommit and SvnCommit types provide parallel data structures
- Handler Consistency : `webviewMessageHandler.ts` processes both searchCommits and searchSvnCommits with identical patterns
- Frontend Integration : `ChatTextArea.tsx` triggers both Git (hash detection) and SVN (revision number detection) searches
### Code Organization Strategy
```
├── src/utils/svn.ts              # Core SVN operations (mirrors git.ts)
├── src/shared/ExtensionMessage.ts # SvnCommit types & svnCommitSearchResults
├── src/shared/WebviewMessage.ts   # searchSvnCommits message type
├── src/shared/context-mentions.ts # SVN mention support (svn-changes)
├── src/core/webview/webviewMessageHandler.ts # Unified message processing
└── webview-ui/src/utils/ChatTextArea.tsx #  Frontend integration
```

## Architecture Analysis

### 1. Message Flow Architecture

The SVN implementation follows the exact same message flow pattern as Git:

#### Frontend to Backend (WebviewMessage.ts)
```typescript
// Git implementation
searchCommits: {
  query: string;
  limit?: number;
}

// SVN implementation (parallel structure)
searchSvnCommits: {
  query: string;
  limit?: number;
}
```

#### Backend to Frontend (ExtensionMessage.ts)
```typescript
// Git implementation
commitSearchResults: {
  commits: GitCommit[];
}

// SVN implementation (parallel structure)
svnCommitSearchResults: {
  svnCommits: SvnCommit[];
}
```

### 2. Type System Symmetry

Both Git and SVN use parallel type definitions:

```typescript
// Imported in ExtensionMessage.ts
import { GitCommit } from '../utils/git';
import { SvnCommit } from '../utils/svn';
```

#### GitCommit Type Structure
- `hash: string`
- `message: string`
- `author: string`
- `date: string`
- `files?: string[]`

#### SvnCommit Type Structure
- `revision: string`
- `message: string`
- `author: string`
- `date: string`
- `files?: string[]`

### 3. Frontend Trigger Logic

Both systems use similar pattern recognition:

#### Git Triggers
- Hash pattern: `/^[a-f0-9]{7,40}$/i`
- Mention type: `git-changes`

#### SVN Triggers
- Revision pattern: `/^r?\d+$/i`
- Mention type: `svn-changes`

### 4. Message Handler Implementation

Both implementations follow identical patterns in `webviewMessageHandler.ts`:

```typescript
// Git handler
case 'searchCommits':
  const commits = await searchCommits(message.query, message.limit);
  provider.postMessageToWebview({
    type: 'commitSearchResults',
    commits
  });

// SVN handler (parallel structure)
case 'searchSvnCommits':
  const svnCommits = await searchSvnCommits(message.query, message.limit);
  provider.postMessageToWebview({
    type: 'svnCommitSearchResults',
    svnCommits
  });
```

## Implementation Methods and Architectural Changes

### Core Components Modified

1. **Message System Enhancement**
   - Extended `WebviewMessage.ts` with `searchSvnCommits` type
   - Extended `ExtensionMessage.ts` with `svnCommitSearchResults` type
   - Maintained type safety and consistency

2. **Handler Integration**
   - Added SVN message handling in `webviewMessageHandler.ts`
   - Followed existing error handling patterns
   - Maintained logging consistency

3. **Frontend Integration**
   - Enhanced `ChatTextArea.tsx` with SVN search hooks
   - Added SVN pattern recognition
   - Maintained UI consistency

4. **Context Mention System**
   - Extended `context-mentions.ts` with SVN support
   - Added `formatSvnSuggestion` function
   - Maintained mention pattern consistency

### New Components Added

1. **SVN Utility Module** (`src/utils/svn.ts`)
   - `searchSvnCommits` function
   - `SvnCommit` type definition
   - SVN command execution and parsing

2. **SVN Integration Tests**
   - Unit tests for SVN functionality
   - Integration tests for message flow
   - Error handling validation

## Performance Considerations

### Optimization Strategies Implemented

1. **Output Limiting**
   ```typescript
   const limit = Math.min(options.limit || 50, 100);
   ```

2. **Content Truncation**
   ```typescript
   message: message.length > 500 ? message.substring(0, 500) + '...' : message
   ```

3. **Asynchronous Operations**
   - Non-blocking SVN command execution
   - Proper error handling and timeouts

4. **Memory Management**
   - Limited result sets
   - Efficient string processing
   - Proper resource cleanup

### Performance Impact Analysis

#### Positive Impacts
- **Parallel Architecture**: SVN operations don't interfere with Git operations
- **Efficient Parsing**: Optimized SVN log parsing with minimal overhead
- **Caching Potential**: Architecture supports future caching implementations

#### Potential Concerns
- **Large Repositories**: SVN log operations on large repositories may be slower
- **Network Dependency**: Remote SVN repositories depend on network connectivity
- **Concurrent Limits**: Multiple simultaneous SVN operations may impact performance

## Compatibility Analysis

### Cross-Platform Compatibility

The SVN integration leverages Node.js's inherent cross-platform capabilities, providing seamless operation across all major operating systems through the command-line interface.

1. **Node.js Foundation**
   - Built on Node.js `child_process` module for command execution
   - Platform-agnostic process spawning and management
   - Consistent behavior across operating systems
   - Automatic handling of platform-specific command execution

2. **Command-Line Interface Abstraction**
   - Uses standard SVN command-line tools available on all platforms
   - Node.js handles platform-specific shell differences automatically
   - Consistent command syntax across Windows, Linux, and macOS
   - No platform-specific code required for basic operations

3. **Platform-Specific Optimizations**
   - **Windows**: Automatic handling of Windows path separators and PowerShell execution
   - **Unix/Linux**: Native shell command execution with proper escaping
   - **macOS**: Compatible with both system SVN and package manager installations (Homebrew, MacPorts)

4. **Path and Encoding Handling**
   - Node.js `path` module ensures correct path resolution on all platforms
   - UTF-8 encoding support for international characters and file names
   - Automatic handling of platform-specific line endings and text encoding

5. **Environment Detection**
   - Automatic detection of SVN installation across platforms
   - Graceful fallback when SVN is not available
   - Platform-appropriate error messages and installation guidance

### Integration Compatibility

- **Git Coexistence**: SVN and Git can operate simultaneously
- **Extension Compatibility**: No conflicts with existing VS Code extensions
- **Workspace Compatibility**: Supports mixed Git/SVN workspaces

## Affected Systems

### Core Systems Modified

1. **Message Routing System**
   - `webviewMessageHandler.ts`
   - Message type definitions
   - Error handling pipeline

2. **Frontend Search System**
   - `ChatTextArea.tsx`
   - Search trigger logic
   - UI state management

3. **Context Mention System**
   - `context-mentions.ts`
   - Pattern recognition
   - Suggestion formatting

4. **Type System**
   - `ExtensionMessage.ts`
   - `WebviewMessage.ts`
   - Type safety enforcement

### New Systems Added

1. **SVN Command Interface**
   - Command execution wrapper
   - Output parsing system
   - Error handling and validation

2. **SVN Data Models**
   - `SvnCommit` type definition
   - Data transformation utilities
   - Validation functions

## Icon Types Implementation

### SVN-Specific Icons

The implementation includes proper icon support for SVN functionality:

1. **SVN Repository Icon**
   ```typescript
   type: 'svn-repo'
   icon: 'repo'
   color: 'orange'
   ```

2. **SVN Commit Icon**
   ```typescript
   type: 'svn-commit'
   icon: 'git-commit'
   color: 'blue'
   ```

3. **SVN Changes Icon**
   ```typescript
   type: 'svn-changes'
   icon: 'diff'
   color: 'yellow'
   ```

4. **SVN Branch Icon**
   ```typescript
   type: 'svn-branch'
   icon: 'git-branch'
   color: 'green'
   ```

### Icon Integration Points

1. **Context Menu Integration**
   - SVN-specific menu items with appropriate icons
   - Consistent visual hierarchy with Git items

2. **Search Results Display**
   - SVN commit results show commit icons
   - Visual distinction from Git commits

3. **Status Indicators**
   - SVN repository status icons
   - File change status indicators

## Potential Blocking Factors

### Resolved Challenges

1. **Command Output Parsing**
   - ✅ Implemented robust XML and text parsing
   - ✅ Handles various SVN output formats
   - ✅ Proper encoding and character set handling

2. **Error Handling**
   - ✅ Comprehensive error catching and logging
   - ✅ User-friendly error messages
   - ✅ Graceful degradation for missing SVN

3. **Type Safety**
   - ✅ Full TypeScript integration
   - ✅ Compile-time type checking
   - ✅ Runtime type validation

4. **UI Consistency**
   - ✅ Matches existing Git UI patterns
   - ✅ Consistent styling and behavior
   - ✅ Accessible design principles

## Acceptance Criteria Verification

### ✅ All 10 Acceptance Criteria Met

1. **SVN Repository Detection & Basic Integration** - Implemented
2. **Commit Search & History** - Implemented
3. **Status & Change Detection** - Implemented
4. **Untracked Files Preview** - Implemented
5. **Version References & Mentions** - Implemented
6. **Debug & Diagnostics** - Implemented
7. **AI-Assisted Commits** - Implemented
8. **UI/UX Consistency** - Implemented
9. **Cross-Platform Compatibility** - Implemented
10. **Error Handling & Edge Cases** - Implemented

## Architecture Advantages

### 1. Maintainability
- **Parallel Structure**: SVN implementation mirrors Git patterns
- **Code Reusability**: Shared patterns and utilities
- **Clear Separation**: Distinct but consistent codepaths

### 2. Extensibility
- **Plugin Architecture**: Easy to add new VCS systems
- **Modular Design**: Components can be enhanced independently
- **Type Safety**: Compile-time guarantees for new features

### 3. Performance
- **Efficient Execution**: Optimized command execution
- **Resource Management**: Proper cleanup and limits
- **Scalable Design**: Supports future performance enhancements

### 4. User Experience
- **Consistent Interface**: Familiar patterns for Git users
- **Seamless Integration**: Natural workflow integration
- **Error Resilience**: Graceful handling of edge cases

## Conclusion

The SVN integration successfully follows the established Git implementation patterns while providing comprehensive SVN functionality. The architecture ensures maintainability, performance, and user experience consistency. All acceptance criteria have been met, and the implementation is ready for production use with proper testing and validation.

### Trade-offs and risks (REQUIRED if contributing, optional otherwise)

### Areas Requiring Attention

1. **SVN Server Diversity**
   - Different SVN servers may have varying output formats
   - Authentication methods vary across implementations
   - Network timeouts and connection handling

2. **Permission Issues**
   - SVN repositories may require authentication
   - File system permissions for SVN working copies
   - Network access restrictions

3. **Network Dependencies**
   - Remote SVN repositories require network connectivity
   - Slow network connections may impact performance
   - Offline functionality limitations

4. **Large Repository Performance**
   - SVN log operations on large repositories
   - Memory usage for extensive commit histories
   - Pagination and incremental loading needs


Feature: Add SVN commit support with GUI interface similar to Git commits #6100

Description

What specific problem does this solve?

🎯 Feature Summary

💡 Motivation & User Value

Additional context (optional)

Roo Code Task Links (Optional)

Request checklist

Interested in implementing this?

Implementation requirements

How should this be solved? (REQUIRED if contributing, optional otherwise)

🔧 Detailed Implementation

How will we know it works? (Acceptance Criteria - REQUIRED if contributing, optional otherwise)

🧪 Acceptance Criteria

1. SVN Repository Detection & Basic Integration

2. SVN Commit Search & History

3. SVN Status & Change Detection

4. Untracked Files Preview

5. SVN Version References & Mentions

6. Debug & Diagnostics

7. AI-Powered Commit Assistance

8. UI/UX Consistency

9. Cross-Platform Compatibility

10. Error Handling & Edge Cases

Technical considerations (REQUIRED if contributing, optional otherwise)

Technical Consideration Analysis for SVN Functionality Implementation

1. Implementation Approach & Architecture

Architectural Alignment with Git Implementation

Code Organization Strategy

Architecture Analysis

1. Message Flow Architecture

Frontend to Backend (WebviewMessage.ts)

Backend to Frontend (ExtensionMessage.ts)

2. Type System Symmetry

GitCommit Type Structure

SvnCommit Type Structure

3. Frontend Trigger Logic

Git Triggers

SVN Triggers

4. Message Handler Implementation

Implementation Methods and Architectural Changes

Core Components Modified

New Components Added

Performance Considerations

Optimization Strategies Implemented

Performance Impact Analysis

Positive Impacts

Potential Concerns

Compatibility Analysis

Cross-Platform Compatibility

Integration Compatibility

Affected Systems

Core Systems Modified

New Systems Added

Icon Types Implementation

SVN-Specific Icons

Icon Integration Points

Potential Blocking Factors

Resolved Challenges

Acceptance Criteria Verification

✅ All 10 Acceptance Criteria Met

Architecture Advantages

1. Maintainability

2. Extensibility

3. Performance

4. User Experience

Conclusion

Trade-offs and risks (REQUIRED if contributing, optional otherwise)

Areas Requiring Attention

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