Merge pull request #16 from johndoe6345789/copilot/add-frontend-support

Implement multi-frontend architecture: Qt6, Next.js, and CLI
This commit is contained in:
2025-12-27 01:45:39 +00:00
committed by GitHub
22 changed files with 1701 additions and 17 deletions

9
.gitignore vendored
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@@ -236,3 +236,12 @@ frontend/out/
frontend/.turbo/
frontend/.vercel/
frontend/bun.lockb
# Frontends
frontends/*/build/
frontends/nextjs/node_modules/
frontends/nextjs/.next/
frontends/nextjs/out/
frontends/nextjs/.turbo/
frontends/nextjs/.vercel/
frontends/nextjs/bun.lockb

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@@ -9,7 +9,10 @@ WizardMerge uses a multi-component architecture:
```
WizardMerge/
├── backend/ # C++ core merge engine (Conan + Ninja)
├── frontend/ # Next.js web UI (bun)
├── frontends/ # Multiple frontend options
│ ├── qt6/ # Qt6 native desktop (C++)
│ ├── nextjs/ # Next.js web UI (TypeScript/bun)
│ └── cli/ # Command-line interface (C++)
├── spec/ # TLA+ formal specification
├── docs/ # Research paper and documentation
└── ROADMAP.md # Development roadmap
@@ -51,7 +54,7 @@ The frontend provides a web-based UI for conflict resolution.
**Setup:**
```bash
cd frontend
cd frontends/nextjs
bun install
```
@@ -62,16 +65,66 @@ bun run dev
Visit http://localhost:3000
See [frontend/README.md](frontend/README.md) for details.
See [frontends/nextjs/README.md](frontends/nextjs/README.md) for details.
### Qt6 Desktop Frontend
The Qt6 frontend provides a native desktop application.
**Prerequisites:**
- Qt6 (6.2+)
- CMake 3.16+
- C++17 compiler
**Setup:**
```bash
cd frontends/qt6
mkdir build && cd build
cmake .. -G Ninja
ninja
```
**Run:**
```bash
./wizardmerge-qt6
```
See [frontends/qt6/README.md](frontends/qt6/README.md) for details.
### CLI Frontend
The CLI frontend provides a command-line interface.
**Prerequisites:**
- C++17 compiler
- CMake 3.15+
- libcurl
**Setup:**
```bash
cd frontends/cli
mkdir build && cd build
cmake .. -G Ninja
ninja
```
**Run:**
```bash
./wizardmerge-cli-frontend --help
```
See [frontends/cli/README.md](frontends/cli/README.md) for details.
## Development Workflow
### Making Changes
1. **Backend (C++)**: Edit files in `backend/src/` and `backend/include/`
2. **Frontend (TypeScript)**: Edit files in `frontend/app/`
3. **Tests**: Add tests in `backend/tests/` for C++ changes
4. **Documentation**: Update relevant README files
2. **Qt6 Frontend (C++)**: Edit files in `frontends/qt6/src/` and `frontends/qt6/qml/`
3. **Next.js Frontend (TypeScript)**: Edit files in `frontends/nextjs/app/`
4. **CLI Frontend (C++)**: Edit files in `frontends/cli/src/`
5. **Tests**: Add tests in `backend/tests/` for C++ changes
6. **Documentation**: Update relevant README files
### Building
@@ -79,8 +132,14 @@ See [frontend/README.md](frontend/README.md) for details.
# C++ backend
cd backend && ./build.sh
# TypeScript frontend
cd frontend && bun run build
# Qt6 desktop frontend
cd frontends/qt6 && mkdir build && cd build && cmake .. -G Ninja && ninja
# Next.js web frontend
cd frontends/nextjs && bun run build
# CLI frontend
cd frontends/cli && mkdir build && cd build && cmake .. -G Ninja && ninja
```
### Testing
@@ -89,8 +148,8 @@ cd frontend && bun run build
# C++ backend tests (requires GTest)
cd backend/build && ninja test
# TypeScript frontend tests
cd frontend && bun test
# Next.js frontend tests
cd frontends/nextjs && bun test
```
## Project Standards

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@@ -17,11 +17,26 @@ WizardMerge uses a multi-frontend architecture with a high-performance C++ backe
- **Web Framework**: Drogon
- **Features**: Three-way merge algorithm, conflict detection, auto-resolution, HTTP API
### Frontend (TypeScript/Next.js)
- **Location**: `frontend/`
### Frontends
WizardMerge provides three frontend options to suit different workflows:
#### Qt6 Native Desktop (C++)
- **Location**: `frontends/qt6/`
- **Framework**: Qt6 with QML
- **Features**: Native desktop application, offline capability, high performance
- **Platforms**: Linux, Windows, macOS
#### Next.js Web UI (TypeScript)
- **Location**: `frontends/nextjs/`
- **Runtime**: bun
- **Framework**: Next.js 14
- **Features**: Web-based UI for conflict resolution
- **Features**: Web-based UI, real-time collaboration, cross-platform access
#### CLI (C++)
- **Location**: `frontends/cli/`
- **Features**: Command-line interface, automation support, scripting integration
- **Use Cases**: Batch processing, CI/CD pipelines, terminal workflows
## Roadmap
See [ROADMAP.md](ROADMAP.md) for our vision and development plan. The roadmap covers:
@@ -38,19 +53,48 @@ See [ROADMAP.md](ROADMAP.md) for our vision and development plan. The roadmap co
```sh
cd backend
./build.sh
./build/wizardmerge-cli
```
See [backend/README.md](backend/README.md) for details.
The backend server will start on port 8080. See [backend/README.md](backend/README.md) for details.
### TypeScript Frontend
### Frontends
Choose the frontend that best fits your workflow:
#### Qt6 Desktop Application
```sh
cd frontend
cd frontends/qt6
mkdir build && cd build
cmake .. -G Ninja
ninja
./wizardmerge-qt6
```
See [frontends/qt6/README.md](frontends/qt6/README.md) for details.
#### Next.js Web UI
```sh
cd frontends/nextjs
bun install
bun run dev
```
See [frontend/README.md](frontend/README.md) for details.
Visit http://localhost:3000. See [frontends/nextjs/README.md](frontends/nextjs/README.md) for details.
#### CLI
```sh
cd frontends/cli
mkdir build && cd build
cmake .. -G Ninja
ninja
./wizardmerge-cli-frontend --help
```
See [frontends/cli/README.md](frontends/cli/README.md) for details.
## Research Foundation

184
frontends/README.md Normal file
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@@ -0,0 +1,184 @@
# WizardMerge Frontends
This directory contains multiple frontend implementations for WizardMerge, each designed for different use cases and workflows.
## Available Frontends
### 1. Qt6 Desktop Frontend (`qt6/`)
**Type**: Native desktop application
**Language**: C++ with Qt6 and QML
**Platforms**: Linux, Windows, macOS
A native desktop application providing the best performance and integration with desktop environments.
**Features**:
- Native window management and desktop integration
- Offline capability with embedded backend option
- High-performance rendering
- Three-panel diff viewer with QML-based UI
- Keyboard shortcuts and native file dialogs
**Best for**: Desktop users who want a fast, native application with full offline support.
See [qt6/README.md](qt6/README.md) for build and usage instructions.
### 2. Next.js Web Frontend (`nextjs/`)
**Type**: Web application
**Language**: TypeScript with React/Next.js
**Runtime**: bun
A modern web-based interface accessible from any browser.
**Features**:
- Cross-platform browser access
- No installation required
- Real-time collaboration (planned)
- Responsive design
- Easy deployment and updates
**Best for**: Teams needing shared access, cloud deployments, or users who prefer web interfaces.
See [nextjs/README.md](nextjs/README.md) for development and deployment instructions.
### 3. CLI Frontend (`cli/`)
**Type**: Command-line interface
**Language**: C++
**Platforms**: Linux, Windows, macOS
A command-line tool for automation and scripting.
**Features**:
- Non-interactive batch processing
- Scriptable and automatable
- CI/CD pipeline integration
- Git workflow integration
- Minimal dependencies
**Best for**: Automation, scripting, CI/CD pipelines, and terminal-based workflows.
See [cli/README.md](cli/README.md) for usage and examples.
## Architecture
All frontends communicate with the WizardMerge C++ backend through a common HTTP API:
```
┌─────────────────────────────────────────────────┐
│ Frontends │
│ ┌────────────┐ ┌────────────┐ ┌──────────┐ │
│ │ Qt6 Native │ │ Next.js │ │ CLI │ │
│ │ (C++) │ │(TypeScript)│ │ (C++) │ │
│ └─────┬──────┘ └──────┬─────┘ └────┬─────┘ │
└────────┼─────────────────┼─────────────┼───────┘
│ │ │
└─────────────────┼─────────────┘
HTTP REST API
┌─────────────────▼──────────────────┐
│ WizardMerge C++ Backend │
│ (Drogon HTTP Server) │
│ │
│ - Three-way merge algorithm │
│ - Conflict detection │
│ - Auto-resolution │
│ - Semantic analysis │
└────────────────────────────────────┘
```
### Backend API
The backend provides a REST API on port 8080 (configurable):
- `POST /api/merge` - Perform three-way merge
All frontends use this common API, ensuring consistent merge behavior regardless of the interface used.
## Choosing a Frontend
| Feature | Qt6 | Next.js | CLI |
|---------|-----|---------|-----|
| Native Performance | ✓ | - | ✓ |
| Offline Support | ✓ | - | ✓ |
| Web Browser Access | - | ✓ | - |
| Collaboration | - | ✓ (planned) | - |
| Automation/Scripting | - | - | ✓ |
| Visual UI | ✓ | ✓ | - |
| Installation Required | ✓ | - | ✓ |
| Platform Support | All | All | All |
## Building All Frontends
### Prerequisites
Install dependencies for all frontends you want to build:
```bash
# Qt6 (for qt6 frontend)
# Ubuntu/Debian:
sudo apt-get install qt6-base-dev qt6-declarative-dev
# macOS:
brew install qt@6
# Next.js (for nextjs frontend)
curl -fsSL https://bun.sh/install | bash
# CLI (for cli frontend)
# Ubuntu/Debian:
sudo apt-get install libcurl4-openssl-dev
# macOS:
brew install curl
```
### Build All
```bash
# Build Qt6 frontend
cd qt6
mkdir build && cd build
cmake .. -G Ninja
ninja
cd ../..
# Build/setup Next.js frontend
cd nextjs
bun install
bun run build
cd ..
# Build CLI frontend
cd cli
mkdir build && cd build
cmake .. -G Ninja
ninja
cd ../..
```
## Development Guidelines
When developing a frontend:
1. **Consistency**: Maintain consistent UX across all frontends where applicable
2. **API Usage**: Use the common backend API for all merge operations
3. **Error Handling**: Properly handle backend connection errors and API failures
4. **Documentation**: Update frontend-specific README files
5. **Testing**: Add tests for new features
### Adding a New Frontend
To add a new frontend implementation:
1. Create a new directory under `frontends/`
2. Implement the UI using your chosen technology
3. Use the backend HTTP API (`POST /api/merge`)
4. Add a README.md with build and usage instructions
5. Update this file to list the new frontend
## License
See [../LICENSE](../LICENSE) for details.

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@@ -0,0 +1,61 @@
cmake_minimum_required(VERSION 3.15)
project(wizardmerge-cli-frontend VERSION 1.0.0 LANGUAGES CXX)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
# Find libcurl
find_package(CURL QUIET)
if(NOT CURL_FOUND)
message(WARNING "libcurl not found. Skipping CLI frontend build.")
message(WARNING "Install libcurl to build the CLI frontend:")
message(WARNING " - Ubuntu/Debian: sudo apt-get install libcurl4-openssl-dev")
message(WARNING " - macOS: brew install curl")
message(WARNING " - Windows: Install via vcpkg or use system curl")
return()
endif()
# Source files
set(SOURCES
src/main.cpp
src/http_client.cpp
src/file_utils.cpp
)
# Header files
set(HEADERS
include/http_client.h
include/file_utils.h
)
# Create executable
add_executable(wizardmerge-cli-frontend
${SOURCES}
${HEADERS}
)
# Include directories
target_include_directories(wizardmerge-cli-frontend PRIVATE
${CMAKE_CURRENT_SOURCE_DIR}/include
${CURL_INCLUDE_DIRS}
)
# Link libraries
target_link_libraries(wizardmerge-cli-frontend PRIVATE
${CURL_LIBRARIES}
)
# Compiler warnings
if(MSVC)
target_compile_options(wizardmerge-cli-frontend PRIVATE /W4)
else()
target_compile_options(wizardmerge-cli-frontend PRIVATE -Wall -Wextra -pedantic)
endif()
# Install target
install(TARGETS wizardmerge-cli-frontend
RUNTIME DESTINATION bin
)
message(STATUS "CLI frontend configured successfully")

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frontends/cli/README.md Normal file
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@@ -0,0 +1,293 @@
# WizardMerge CLI Frontend
Command-line interface for WizardMerge merge conflict resolution.
## Features
- Simple command-line interface
- Communicates with WizardMerge backend via HTTP API
- Suitable for automation and scripting
- Cross-platform (Linux, Windows, macOS)
- Non-interactive batch processing
## Prerequisites
- C++17 compiler (GCC 7+, Clang 6+, MSVC 2017+)
- CMake 3.15+
- libcurl (for HTTP client)
## Building
### Install Dependencies
**Ubuntu/Debian:**
```bash
sudo apt-get install libcurl4-openssl-dev
```
**macOS (Homebrew):**
```bash
brew install curl
```
**Windows:**
libcurl is typically included with MSVC or can be installed via vcpkg.
### Build the Application
```bash
mkdir build && cd build
cmake .. -DCMAKE_BUILD_TYPE=Release
make
```
Or using Ninja:
```bash
mkdir build && cd build
cmake .. -G Ninja -DCMAKE_BUILD_TYPE=Release
ninja
```
### Run
```bash
./wizardmerge-cli --help
```
## Usage
### Basic Three-Way Merge
```bash
wizardmerge-cli merge --base base.txt --ours ours.txt --theirs theirs.txt -o result.txt
```
### Merge with Backend Server
```bash
# Use default backend (http://localhost:8080)
wizardmerge-cli merge --base base.txt --ours ours.txt --theirs theirs.txt
# Specify custom backend URL
wizardmerge-cli --backend http://remote-server:8080 merge --base base.txt --ours ours.txt --theirs theirs.txt
```
### Git Integration
```bash
# Resolve conflicts in a Git repository
cd /path/to/git/repo
wizardmerge-cli git-resolve
# Resolve a specific file
wizardmerge-cli git-resolve path/to/conflicted/file.txt
```
### Batch Processing
```bash
# Process all conflicted files in current directory
wizardmerge-cli batch-resolve .
```
## Command Reference
### Global Options
- `--backend <url>` - Backend server URL (default: http://localhost:8080)
- `--verbose, -v` - Enable verbose output
- `--quiet, -q` - Suppress non-error output
- `--help, -h` - Show help message
- `--version` - Show version information
### Commands
#### merge
Perform a three-way merge operation.
```bash
wizardmerge-cli merge [OPTIONS]
```
Options:
- `--base <file>` - Path to base version (required)
- `--ours <file>` - Path to our version (required)
- `--theirs <file>` - Path to their version (required)
- `-o, --output <file>` - Output file path (default: stdout)
- `--format <format>` - Output format: text, json (default: text)
#### git-resolve
Resolve Git merge conflicts.
```bash
wizardmerge-cli git-resolve [FILE]
```
Arguments:
- `FILE` - Specific file to resolve (optional, resolves all if omitted)
#### batch-resolve
Batch process multiple files.
```bash
wizardmerge-cli batch-resolve [DIRECTORY]
```
Arguments:
- `DIRECTORY` - Directory to scan for conflicts (default: current directory)
Options:
- `--recursive, -r` - Process directories recursively
- `--pattern <pattern>` - File pattern to match (default: *)
## Examples
### Example 1: Simple Merge
```bash
# Create test files
echo -e "line1\nline2\nline3" > base.txt
echo -e "line1\nline2-ours\nline3" > ours.txt
echo -e "line1\nline2-theirs\nline3" > theirs.txt
# Perform merge
wizardmerge-cli merge --base base.txt --ours ours.txt --theirs theirs.txt
```
### Example 2: JSON Output
```bash
wizardmerge-cli merge --base base.txt --ours ours.txt --theirs theirs.txt --format json > result.json
```
### Example 3: Git Workflow
```bash
# In a Git repository with conflicts
git merge feature-branch
# Conflicts occur...
# Resolve using WizardMerge
wizardmerge-cli git-resolve
# Review and commit
git commit
```
## Exit Codes
- `0` - Success (no conflicts or all conflicts resolved)
- `1` - General error
- `2` - Invalid arguments
- `3` - Backend connection error
- `4` - File I/O error
- `5` - Merge conflicts detected (when running in strict mode)
## Configuration
Configuration can be provided via:
1. Command-line arguments (highest priority)
2. Environment variables:
- `WIZARDMERGE_BACKEND` - Backend server URL
- `WIZARDMERGE_VERBOSE` - Enable verbose output (1/0)
3. Configuration file `~/.wizardmergerc` (lowest priority)
### Configuration File Format
```ini
[backend]
url = http://localhost:8080
[cli]
verbose = false
format = text
```
## Project Structure
```
cli/
├── CMakeLists.txt # CMake build configuration
├── README.md # This file
├── src/ # C++ source files
│ ├── main.cpp # Application entry point
│ ├── http_client.cpp # HTTP client implementation
│ └── file_utils.cpp # File handling utilities
└── include/ # Header files
├── http_client.h
└── file_utils.h
```
## Development
### Architecture
The CLI frontend is a thin client that:
1. Parses command-line arguments
2. Reads input files
3. Sends HTTP requests to backend
4. Formats and displays results
### Current Limitations
**JSON Handling (Prototype Implementation)**:
- The current implementation uses simple string-based JSON serialization/parsing
- Does NOT escape special characters (quotes, backslashes, newlines, etc.)
- Will fail on file content with complex characters
- Suitable for simple text files and prototyping only
**Production Readiness**:
For production use, the JSON handling should be replaced with a proper library:
- Option 1: [nlohmann/json](https://github.com/nlohmann/json) - Header-only, modern C++
- Option 2: [RapidJSON](https://github.com/Tencent/rapidjson) - Fast and lightweight
- Option 3: [jsoncpp](https://github.com/open-source-parsers/jsoncpp) - Mature and stable
See `src/http_client.cpp` for TODO comments marking areas needing improvement.
### Dependencies
- Standard C++ library
- libcurl (for HTTP client)
- POSIX API (for file operations)
### Adding New Commands
1. Add command handler in `src/main.cpp`
2. Implement command logic
3. Update help text and README
4. Add tests
## Troubleshooting
### Backend Connection Failed
```bash
# Check backend is running
curl http://localhost:8080/api/health
# Start backend if needed
cd ../../backend
./build/wizardmerge-cli
```
### File Not Found
Ensure file paths are correct and files are readable:
```bash
ls -la base.txt ours.txt theirs.txt
```
### Permission Denied
Check file permissions:
```bash
chmod +r base.txt ours.txt theirs.txt
```
## License
See [LICENSE](../../LICENSE) for details.

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@@ -0,0 +1,43 @@
#ifndef FILE_UTILS_H
#define FILE_UTILS_H
#include <string>
#include <vector>
/**
* @brief File utility functions
*/
class FileUtils {
public:
/**
* @brief Read a file and split into lines
* @param filePath Path to the file
* @param lines Output vector of lines
* @return true if successful, false on error
*/
static bool readLines(const std::string& filePath, std::vector<std::string>& lines);
/**
* @brief Write lines to a file
* @param filePath Path to the file
* @param lines Vector of lines to write
* @return true if successful, false on error
*/
static bool writeLines(const std::string& filePath, const std::vector<std::string>& lines);
/**
* @brief Check if a file exists
* @param filePath Path to the file
* @return true if file exists, false otherwise
*/
static bool fileExists(const std::string& filePath);
/**
* @brief Get file size in bytes
* @param filePath Path to the file
* @return File size, or -1 on error
*/
static long getFileSize(const std::string& filePath);
};
#endif // FILE_UTILS_H

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@@ -0,0 +1,62 @@
#ifndef HTTP_CLIENT_H
#define HTTP_CLIENT_H
#include <string>
#include <vector>
#include <map>
/**
* @brief HTTP client for communicating with WizardMerge backend
*/
class HttpClient {
public:
/**
* @brief Construct HTTP client with backend URL
* @param backendUrl URL of the backend server (e.g., "http://localhost:8080")
*/
explicit HttpClient(const std::string& backendUrl);
/**
* @brief Perform a three-way merge via backend API
* @param base Base version lines
* @param ours Our version lines
* @param theirs Their version lines
* @param merged Output merged lines
* @param hasConflicts Output whether conflicts were detected
* @return true if successful, false on error
*/
bool performMerge(
const std::vector<std::string>& base,
const std::vector<std::string>& ours,
const std::vector<std::string>& theirs,
std::vector<std::string>& merged,
bool& hasConflicts
);
/**
* @brief Check if backend is reachable
* @return true if backend responds, false otherwise
*/
bool checkBackend();
/**
* @brief Get last error message
* @return Error message string
*/
std::string getLastError() const { return lastError_; }
private:
std::string backendUrl_;
std::string lastError_;
/**
* @brief Perform HTTP POST request
* @param endpoint API endpoint (e.g., "/api/merge")
* @param jsonBody JSON request body
* @param response Output response string
* @return true if successful, false on error
*/
bool post(const std::string& endpoint, const std::string& jsonBody, std::string& response);
};
#endif // HTTP_CLIENT_H

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@@ -0,0 +1,47 @@
#include "file_utils.h"
#include <fstream>
#include <sstream>
#include <sys/stat.h>
bool FileUtils::readLines(const std::string& filePath, std::vector<std::string>& lines) {
std::ifstream file(filePath);
if (!file.is_open()) {
return false;
}
lines.clear();
std::string line;
while (std::getline(file, line)) {
lines.push_back(line);
}
file.close();
return true;
}
bool FileUtils::writeLines(const std::string& filePath, const std::vector<std::string>& lines) {
std::ofstream file(filePath);
if (!file.is_open()) {
return false;
}
for (const auto& line : lines) {
file << line << "\n";
}
file.close();
return true;
}
bool FileUtils::fileExists(const std::string& filePath) {
struct stat buffer;
return (stat(filePath.c_str(), &buffer) == 0);
}
long FileUtils::getFileSize(const std::string& filePath) {
struct stat buffer;
if (stat(filePath.c_str(), &buffer) != 0) {
return -1;
}
return buffer.st_size;
}

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@@ -0,0 +1,142 @@
#include "http_client.h"
#include <curl/curl.h>
#include <sstream>
#include <iostream>
// Callback for libcurl to write response data
static size_t WriteCallback(void* contents, size_t size, size_t nmemb, void* userp) {
((std::string*)userp)->append((char*)contents, size * nmemb);
return size * nmemb;
}
HttpClient::HttpClient(const std::string& backendUrl)
: backendUrl_(backendUrl), lastError_("") {
}
bool HttpClient::post(const std::string& endpoint, const std::string& jsonBody, std::string& response) {
CURL* curl = curl_easy_init();
if (!curl) {
lastError_ = "Failed to initialize CURL";
return false;
}
std::string url = backendUrl_ + endpoint;
response.clear();
curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, jsonBody.c_str());
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteCallback);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &response);
struct curl_slist* headers = nullptr;
headers = curl_slist_append(headers, "Content-Type: application/json");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
CURLcode res = curl_easy_perform(curl);
bool success = (res == CURLE_OK);
if (!success) {
lastError_ = std::string("CURL error: ") + curl_easy_strerror(res);
}
curl_slist_free_all(headers);
curl_easy_cleanup(curl);
return success;
}
bool HttpClient::performMerge(
const std::vector<std::string>& base,
const std::vector<std::string>& ours,
const std::vector<std::string>& theirs,
std::vector<std::string>& merged,
bool& hasConflicts
) {
// Build JSON request
// NOTE: This is a simplified JSON builder for prototype purposes.
// LIMITATION: Does not escape special characters in strings (quotes, backslashes, etc.)
// TODO: For production, use a proper JSON library like nlohmann/json or rapidjson
// This implementation works for simple test cases but will fail with complex content.
std::ostringstream json;
json << "{";
json << "\"base\":[";
for (size_t i = 0; i < base.size(); ++i) {
json << "\"" << base[i] << "\""; // WARNING: No escaping!
if (i < base.size() - 1) json << ",";
}
json << "],";
json << "\"ours\":[";
for (size_t i = 0; i < ours.size(); ++i) {
json << "\"" << ours[i] << "\""; // WARNING: No escaping!
if (i < ours.size() - 1) json << ",";
}
json << "],";
json << "\"theirs\":[";
for (size_t i = 0; i < theirs.size(); ++i) {
json << "\"" << theirs[i] << "\""; // WARNING: No escaping!
if (i < theirs.size() - 1) json << ",";
}
json << "]";
json << "}";
std::string response;
if (!post("/api/merge", json.str(), response)) {
return false;
}
// Parse JSON response (simple parsing for now)
// NOTE: This is a fragile string-based parser for prototype purposes.
// LIMITATION: Will break on complex JSON or unexpected formatting.
// TODO: For production, use a proper JSON library like nlohmann/json or rapidjson
merged.clear();
hasConflicts = (response.find("\"has_conflicts\":true") != std::string::npos);
// Extract merged lines from response
// This is a simplified parser - production code MUST use a JSON library
size_t mergedPos = response.find("\"merged\":");
if (mergedPos != std::string::npos) {
size_t startBracket = response.find("[", mergedPos);
size_t endBracket = response.find("]", startBracket);
if (startBracket != std::string::npos && endBracket != std::string::npos) {
std::string mergedArray = response.substr(startBracket + 1, endBracket - startBracket - 1);
// Parse lines (simplified)
size_t pos = 0;
while (pos < mergedArray.size()) {
size_t quoteStart = mergedArray.find("\"", pos);
if (quoteStart == std::string::npos) break;
size_t quoteEnd = mergedArray.find("\"", quoteStart + 1);
if (quoteEnd == std::string::npos) break;
std::string line = mergedArray.substr(quoteStart + 1, quoteEnd - quoteStart - 1);
merged.push_back(line);
pos = quoteEnd + 1;
}
}
}
return true;
}
bool HttpClient::checkBackend() {
CURL* curl = curl_easy_init();
if (!curl) {
lastError_ = "Failed to initialize CURL";
return false;
}
std::string url = backendUrl_ + "/";
curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
curl_easy_setopt(curl, CURLOPT_NOBODY, 1L);
curl_easy_setopt(curl, CURLOPT_TIMEOUT, 5L);
CURLcode res = curl_easy_perform(curl);
bool success = (res == CURLE_OK);
if (!success) {
lastError_ = std::string("Cannot reach backend: ") + curl_easy_strerror(res);
}
curl_easy_cleanup(curl);
return success;
}

243
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#include "http_client.h"
#include "file_utils.h"
#include <iostream>
#include <string>
#include <cstring>
#include <cstdlib>
/**
* @brief Print usage information
*/
void printUsage(const char* programName) {
std::cout << "WizardMerge CLI Frontend - Intelligent Merge Conflict Resolution\n\n";
std::cout << "Usage:\n";
std::cout << " " << programName << " [OPTIONS] merge --base <file> --ours <file> --theirs <file>\n";
std::cout << " " << programName << " [OPTIONS] git-resolve [FILE]\n";
std::cout << " " << programName << " --help\n";
std::cout << " " << programName << " --version\n\n";
std::cout << "Global Options:\n";
std::cout << " --backend <url> Backend server URL (default: http://localhost:8080)\n";
std::cout << " -v, --verbose Enable verbose output\n";
std::cout << " -q, --quiet Suppress non-error output\n";
std::cout << " -h, --help Show this help message\n";
std::cout << " --version Show version information\n\n";
std::cout << "Commands:\n";
std::cout << " merge Perform three-way merge\n";
std::cout << " --base <file> Base version file (required)\n";
std::cout << " --ours <file> Our version file (required)\n";
std::cout << " --theirs <file> Their version file (required)\n";
std::cout << " -o, --output <file> Output file (default: stdout)\n";
std::cout << " --format <format> Output format: text, json (default: text)\n\n";
std::cout << " git-resolve Resolve Git merge conflicts (not yet implemented)\n";
std::cout << " [FILE] Specific file to resolve (optional)\n\n";
std::cout << "Examples:\n";
std::cout << " " << programName << " merge --base base.txt --ours ours.txt --theirs theirs.txt\n";
std::cout << " " << programName << " merge --base base.txt --ours ours.txt --theirs theirs.txt -o result.txt\n";
std::cout << " " << programName << " --backend http://remote:8080 merge --base b.txt --ours o.txt --theirs t.txt\n\n";
}
/**
* @brief Print version information
*/
void printVersion() {
std::cout << "WizardMerge CLI Frontend v1.0.0\n";
std::cout << "Part of the WizardMerge Intelligent Merge Conflict Resolution system\n";
}
/**
* @brief Parse command-line arguments and execute merge
*/
int main(int argc, char* argv[]) {
// Default configuration
std::string backendUrl = "http://localhost:8080";
bool verbose = false;
bool quiet = false;
std::string command;
std::string baseFile, oursFile, theirsFile, outputFile;
std::string format = "text";
// Check environment variable
const char* envBackend = std::getenv("WIZARDMERGE_BACKEND");
if (envBackend) {
backendUrl = envBackend;
}
// Parse arguments
for (int i = 1; i < argc; ++i) {
std::string arg = argv[i];
if (arg == "--help" || arg == "-h") {
printUsage(argv[0]);
return 0;
} else if (arg == "--version") {
printVersion();
return 0;
} else if (arg == "--backend") {
if (i + 1 < argc) {
backendUrl = argv[++i];
} else {
std::cerr << "Error: --backend requires an argument\n";
return 2;
}
} else if (arg == "--verbose" || arg == "-v") {
verbose = true;
} else if (arg == "--quiet" || arg == "-q") {
quiet = true;
} else if (arg == "merge") {
command = "merge";
} else if (arg == "git-resolve") {
command = "git-resolve";
} else if (arg == "--base") {
if (i + 1 < argc) {
baseFile = argv[++i];
} else {
std::cerr << "Error: --base requires an argument\n";
return 2;
}
} else if (arg == "--ours") {
if (i + 1 < argc) {
oursFile = argv[++i];
} else {
std::cerr << "Error: --ours requires an argument\n";
return 2;
}
} else if (arg == "--theirs") {
if (i + 1 < argc) {
theirsFile = argv[++i];
} else {
std::cerr << "Error: --theirs requires an argument\n";
return 2;
}
} else if (arg == "--output" || arg == "-o") {
if (i + 1 < argc) {
outputFile = argv[++i];
} else {
std::cerr << "Error: --output requires an argument\n";
return 2;
}
} else if (arg == "--format") {
if (i + 1 < argc) {
format = argv[++i];
} else {
std::cerr << "Error: --format requires an argument\n";
return 2;
}
}
}
// Check if command was provided
if (command.empty()) {
std::cerr << "Error: No command specified\n\n";
printUsage(argv[0]);
return 2;
}
// Execute command
if (command == "merge") {
// Validate required arguments
if (baseFile.empty() || oursFile.empty() || theirsFile.empty()) {
std::cerr << "Error: merge command requires --base, --ours, and --theirs arguments\n";
return 2;
}
// Check files exist
if (!FileUtils::fileExists(baseFile)) {
std::cerr << "Error: Base file not found: " << baseFile << "\n";
return 4;
}
if (!FileUtils::fileExists(oursFile)) {
std::cerr << "Error: Ours file not found: " << oursFile << "\n";
return 4;
}
if (!FileUtils::fileExists(theirsFile)) {
std::cerr << "Error: Theirs file not found: " << theirsFile << "\n";
return 4;
}
if (verbose) {
std::cout << "Backend URL: " << backendUrl << "\n";
std::cout << "Base file: " << baseFile << "\n";
std::cout << "Ours file: " << oursFile << "\n";
std::cout << "Theirs file: " << theirsFile << "\n";
}
// Read input files
std::vector<std::string> baseLines, oursLines, theirsLines;
if (!FileUtils::readLines(baseFile, baseLines)) {
std::cerr << "Error: Failed to read base file\n";
return 4;
}
if (!FileUtils::readLines(oursFile, oursLines)) {
std::cerr << "Error: Failed to read ours file\n";
return 4;
}
if (!FileUtils::readLines(theirsFile, theirsLines)) {
std::cerr << "Error: Failed to read theirs file\n";
return 4;
}
if (verbose) {
std::cout << "Read " << baseLines.size() << " lines from base\n";
std::cout << "Read " << oursLines.size() << " lines from ours\n";
std::cout << "Read " << theirsLines.size() << " lines from theirs\n";
}
// Connect to backend and perform merge
HttpClient client(backendUrl);
if (!quiet) {
std::cout << "Connecting to backend: " << backendUrl << "\n";
}
if (!client.checkBackend()) {
std::cerr << "Error: Cannot connect to backend: " << client.getLastError() << "\n";
std::cerr << "Make sure the backend server is running on " << backendUrl << "\n";
return 3;
}
if (!quiet) {
std::cout << "Performing three-way merge...\n";
}
std::vector<std::string> mergedLines;
bool hasConflicts = false;
if (!client.performMerge(baseLines, oursLines, theirsLines, mergedLines, hasConflicts)) {
std::cerr << "Error: Merge failed: " << client.getLastError() << "\n";
return 1;
}
// Output results
if (!quiet) {
std::cout << "Merge completed. Has conflicts: " << (hasConflicts ? "Yes" : "No") << "\n";
std::cout << "Result has " << mergedLines.size() << " lines\n";
}
// Write output
if (outputFile.empty()) {
// Write to stdout
for (const auto& line : mergedLines) {
std::cout << line << "\n";
}
} else {
if (!FileUtils::writeLines(outputFile, mergedLines)) {
std::cerr << "Error: Failed to write output file\n";
return 4;
}
if (!quiet) {
std::cout << "Output written to: " << outputFile << "\n";
}
}
return hasConflicts ? 5 : 0;
} else if (command == "git-resolve") {
std::cerr << "Error: git-resolve command not yet implemented\n";
return 1;
} else {
std::cerr << "Error: Unknown command: " << command << "\n";
return 2;
}
return 0;
}

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cmake_minimum_required(VERSION 3.16)
project(wizardmerge-qt6 VERSION 1.0.0 LANGUAGES CXX)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
# Qt6 configuration
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)
set(CMAKE_AUTOUIC ON)
# Find Qt6 packages
find_package(Qt6 COMPONENTS Core Widgets Quick Network QUIET)
if(NOT Qt6_FOUND)
message(WARNING "Qt6 not found. Skipping Qt6 frontend build.")
message(WARNING "Install Qt6 to build the Qt6 frontend:")
message(WARNING " - Ubuntu/Debian: sudo apt-get install qt6-base-dev qt6-declarative-dev")
message(WARNING " - macOS: brew install qt@6")
message(WARNING " - Windows: Download from https://www.qt.io/download")
return()
endif()
# Source files
set(SOURCES
src/main.cpp
)
# QML files
set(QML_FILES
qml/main.qml
)
# Create executable
qt_add_executable(wizardmerge-qt6
${SOURCES}
)
# Add QML module
qt_add_qml_module(wizardmerge-qt6
URI WizardMerge
VERSION 1.0
QML_FILES ${QML_FILES}
)
# Link Qt libraries
target_link_libraries(wizardmerge-qt6 PRIVATE
Qt6::Core
Qt6::Widgets
Qt6::Quick
Qt6::Network
)
# Include directories
target_include_directories(wizardmerge-qt6 PRIVATE
${CMAKE_CURRENT_SOURCE_DIR}/include
)
# Install target
install(TARGETS wizardmerge-qt6
BUNDLE DESTINATION .
RUNTIME DESTINATION bin
)
# Platform-specific settings
if(WIN32)
set_target_properties(wizardmerge-qt6 PROPERTIES
WIN32_EXECUTABLE TRUE
)
endif()
if(APPLE)
set_target_properties(wizardmerge-qt6 PROPERTIES
MACOSX_BUNDLE TRUE
)
endif()
message(STATUS "Qt6 frontend configured successfully")

104
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# WizardMerge Qt6 Frontend
Native desktop frontend for WizardMerge built with Qt6 and C++.
## Features
- Native desktop application for Linux, Windows, and macOS
- Qt6 Widgets/QML-based UI
- Direct integration with C++ backend
- Offline capability
- High performance
## Prerequisites
- Qt6 (6.2+)
- CMake 3.16+
- C++17 compiler (GCC 7+, Clang 6+, MSVC 2017+)
- Ninja (recommended)
## Building
### Install Qt6
**Ubuntu/Debian:**
```bash
sudo apt-get install qt6-base-dev qt6-declarative-dev
```
**macOS (Homebrew):**
```bash
brew install qt@6
```
**Windows:**
Download and install Qt6 from https://www.qt.io/download
### Build the Application
```bash
mkdir build && cd build
cmake .. -G Ninja -DCMAKE_BUILD_TYPE=Release
ninja
```
### Run
```bash
./wizardmerge-qt6
```
## Project Structure
```
qt6/
├── CMakeLists.txt # CMake build configuration
├── README.md # This file
├── src/ # C++ source files
│ └── main.cpp # Application entry point
├── qml/ # QML UI files
│ └── main.qml # Main window UI
└── include/ # Header files
```
## Development
### Architecture
The Qt6 frontend communicates with the WizardMerge C++ backend via:
- Direct library linking (for standalone mode)
- HTTP API calls (for client-server mode)
### UI Components
The UI is built using QML for declarative UI design:
- Three-panel diff viewer
- Conflict resolution controls
- Syntax highlighting
- File navigation
## Configuration
The application can be configured via command-line arguments:
```bash
# Open a specific file
./wizardmerge-qt6 /path/to/conflicted/file
# Connect to remote backend
./wizardmerge-qt6 --backend-url http://localhost:8080
# Use standalone mode (embedded backend)
./wizardmerge-qt6 --standalone
```
## Dependencies
- Qt6 Core
- Qt6 Widgets
- Qt6 Quick (QML)
- Qt6 Network (for HTTP client)
## License
See [LICENSE](../../LICENSE) for details.

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import QtQuick
import QtQuick.Controls
import QtQuick.Layouts
ApplicationWindow {
id: root
visible: true
width: 1200
height: 800
title: "WizardMerge - Intelligent Merge Conflict Resolution"
// Properties exposed from C++
property string backendUrl: ""
property bool standalone: false
property string initialFile: ""
header: ToolBar {
RowLayout {
anchors.fill: parent
spacing: 10
Label {
text: "WizardMerge"
font.pixelSize: 18
font.bold: true
}
Item { Layout.fillWidth: true }
Label {
text: standalone ? "Standalone Mode" : "Client Mode"
font.pixelSize: 12
}
ToolButton {
text: "Open File"
onClicked: fileDialog.open()
}
ToolButton {
text: "Settings"
onClicked: settingsDialog.open()
}
}
}
// Main content area
SplitView {
anchors.fill: parent
orientation: Qt.Horizontal
// Left panel - Base version
Rectangle {
SplitView.preferredWidth: parent.width / 3
color: "#f5f5f5"
border.color: "#cccccc"
border.width: 1
ColumnLayout {
anchors.fill: parent
anchors.margins: 10
spacing: 5
Label {
text: "Base Version"
font.bold: true
font.pixelSize: 14
}
ScrollView {
Layout.fillWidth: true
Layout.fillHeight: true
TextArea {
id: baseText
readOnly: true
font.family: "monospace"
font.pixelSize: 12
wrapMode: TextEdit.NoWrap
placeholderText: "Base version will appear here..."
}
}
}
}
// Middle panel - Ours version
Rectangle {
SplitView.preferredWidth: parent.width / 3
color: "#e8f5e9"
border.color: "#4caf50"
border.width: 2
ColumnLayout {
anchors.fill: parent
anchors.margins: 10
spacing: 5
Label {
text: "Ours (Current Branch)"
font.bold: true
font.pixelSize: 14
color: "#2e7d32"
}
ScrollView {
Layout.fillWidth: true
Layout.fillHeight: true
TextArea {
id: oursText
readOnly: true
font.family: "monospace"
font.pixelSize: 12
wrapMode: TextEdit.NoWrap
placeholderText: "Our version will appear here..."
}
}
}
}
// Right panel - Theirs version
Rectangle {
SplitView.preferredWidth: parent.width / 3
color: "#e3f2fd"
border.color: "#2196f3"
border.width: 2
ColumnLayout {
anchors.fill: parent
anchors.margins: 10
spacing: 5
Label {
text: "Theirs (Incoming Branch)"
font.bold: true
font.pixelSize: 14
color: "#1565c0"
}
ScrollView {
Layout.fillWidth: true
Layout.fillHeight: true
TextArea {
id: theirsText
readOnly: true
font.family: "monospace"
font.pixelSize: 12
wrapMode: TextEdit.NoWrap
placeholderText: "Their version will appear here..."
}
}
}
}
}
// Status bar
footer: ToolBar {
RowLayout {
anchors.fill: parent
spacing: 10
Label {
text: "Backend: " + backendUrl
font.pixelSize: 10
}
Item { Layout.fillWidth: true }
Label {
text: initialFile !== "" ? "File: " + initialFile : "No file loaded"
font.pixelSize: 10
}
Label {
text: "Ready"
font.pixelSize: 10
font.bold: true
}
}
}
// File dialog (placeholder)
Dialog {
id: fileDialog
title: "Open File"
standardButtons: Dialog.Ok | Dialog.Cancel
Label {
text: "File selection not yet implemented.\nUse command line: wizardmerge-qt6 <file>"
}
}
// Settings dialog (placeholder)
Dialog {
id: settingsDialog
title: "Settings"
standardButtons: Dialog.Ok | Dialog.Cancel
ColumnLayout {
spacing: 10
Label {
text: "Backend URL:"
}
TextField {
Layout.fillWidth: true
text: backendUrl
placeholderText: "http://localhost:8080"
}
CheckBox {
text: "Standalone Mode"
checked: standalone
}
}
}
// Component initialization
Component.onCompleted: {
console.log("WizardMerge Qt6 UI initialized")
console.log("Backend URL:", backendUrl)
console.log("Standalone:", standalone)
console.log("Initial File:", initialFile)
}
}

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#include <QGuiApplication>
#include <QQmlApplicationEngine>
#include <QQmlContext>
#include <QCommandLineParser>
#include <QNetworkAccessManager>
#include <QUrl>
#include <iostream>
/**
* @brief Main entry point for WizardMerge Qt6 frontend
*
* This application provides a native desktop interface for WizardMerge,
* supporting both standalone mode (with embedded backend) and client mode
* (connecting to a remote backend server).
*/
int main(int argc, char *argv[])
{
QGuiApplication app(argc, argv);
app.setApplicationName("WizardMerge");
app.setApplicationVersion("1.0.0");
app.setOrganizationName("WizardMerge");
app.setOrganizationDomain("wizardmerge.dev");
// Command line parser
QCommandLineParser parser;
parser.setApplicationDescription("WizardMerge - Intelligent Merge Conflict Resolution");
parser.addHelpOption();
parser.addVersionOption();
QCommandLineOption backendUrlOption(
QStringList() << "b" << "backend-url",
"Backend server URL (default: http://localhost:8080)",
"url",
"http://localhost:8080"
);
parser.addOption(backendUrlOption);
QCommandLineOption standaloneOption(
QStringList() << "s" << "standalone",
"Run in standalone mode with embedded backend"
);
parser.addOption(standaloneOption);
parser.addPositionalArgument("file", "File to open (optional)");
parser.process(app);
// Get command line arguments
QString backendUrl = parser.value(backendUrlOption);
bool standalone = parser.isSet(standaloneOption);
QStringList positionalArgs = parser.positionalArguments();
QString filePath = positionalArgs.isEmpty() ? QString() : positionalArgs.first();
// Create QML engine
QQmlApplicationEngine engine;
// Expose application settings to QML
QQmlContext* rootContext = engine.rootContext();
rootContext->setContextProperty("backendUrl", backendUrl);
rootContext->setContextProperty("standalone", standalone);
rootContext->setContextProperty("initialFile", filePath);
// Load main QML file
const QUrl url(u"qrc:/qt/qml/WizardMerge/main.qml"_qs);
QObject::connect(&engine, &QQmlApplicationEngine::objectCreationFailed,
&app, []() {
std::cerr << "Error: Failed to load QML" << std::endl;
QCoreApplication::exit(-1);
},
Qt::QueuedConnection);
engine.load(url);
if (engine.rootObjects().isEmpty()) {
std::cerr << "Error: No root objects loaded from QML" << std::endl;
return -1;
}
std::cout << "WizardMerge Qt6 Frontend Started" << std::endl;
std::cout << "Backend URL: " << backendUrl.toStdString() << std::endl;
std::cout << "Standalone Mode: " << (standalone ? "Yes" : "No") << std::endl;
if (!filePath.isEmpty()) {
std::cout << "Opening file: " << filePath.toStdString() << std::endl;
}
return app.exec();
}