Chromium Commits Query Tool

A comprehensive tool to query the latest commit information for files in the Chromium repository. Supports CLI usage, Python API integration, and Model Context Protocol (MCP) server functionality.

Features

• 🔍 Query Latest Commits: Get detailed information about the most recent commit that modified any file in the Chromium repository
• 📊 Comprehensive Details: Retrieve commit hash, author, timestamp, message, and complete list of modified files
• 🔧 Multiple Interfaces: Use via command line, Python API, or as an MCP server
• 📁 Batch Processing: Process multiple files at once with batch operations
• 🐳 Docker Support: Easy deployment with containerization
• 🌐 MCP Integration: Seamless integration with AI agents and tools

Installation

Using UV (Recommended)

git clone https://github.com/hydavinci/chromium-commits.git
cd chromium-commits
uv sync

Using pip

git clone https://github.com/hydavinci/chromium-commits.git
cd chromium-commits
pip install -r requirements.txt

Using Docker

docker build -t chromium-commits .
docker run --rm chromium-commits

Usage

🖥️ Command Line Interface (CLI)

Navigate to the src directory and use the following commands:

cd src

# Basic usage - get latest commit for a single file
python get_chromium_commits.py "chrome/browser/ui/browser.cc"

# Save output to file
python get_chromium_commits.py -o result.txt "components/sync/service/data_type_manager.cc"

# Show detailed diff information
python get_chromium_commits.py --show-diff "chrome/browser/ui/browser.cc"

# Batch processing multiple files
python batch_get_commits.py files.txt

🐍 Python API

from src.get_chromium_commits import ChromiumCommitFetcher

# Initialize the fetcher
fetcher = ChromiumCommitFetcher()

# Get basic commit info
basic_info = fetcher.get_file_latest_commit("chrome/browser/ui/browser.cc")

# Get detailed commit info with all modified files
detailed_info = fetcher.get_file_commit_info(
    "chrome/browser/ui/browser.cc", 
    detailed=True, 
    show_diff=True
)

print(detailed_info)

🔗 MCP Server

Start the MCP server for integration with AI agents:

cd src
python server.py

The server provides the get_chromium_latest_commit tool that can be used by MCP-compatible clients.

📖 Example Usage

See src/example_usage.py for a comprehensive demonstration of the Python API:

cd src
python example_usage.py

📋 Example Output

=============================================================
Latest Commit Information for: chrome/browser/ui/browser.cc
=============================================================

Commit Hash: a1b2c3d4e5f6789abcdef123456789abcdef1234
Author: developer@chromium.org
Author Email: developer@chromium.org
Commit Time: 2024-12-20 15:30:45 UTC
Commit Message: [Chrome] Improve browser window management and memory optimization

Files modified in this commit (Total: 15):
[MODIFIED] chrome/browser/ui/browser.cc
[MODIFIED] chrome/browser/ui/browser.h
[MODIFIED] chrome/browser/ui/views/frame/browser_view.cc
[MODIFIED] chrome/browser/memory/tab_manager.cc
[ADDED] chrome/browser/ui/browser_memory_coordinator.cc
[ADDED] chrome/browser/ui/browser_memory_coordinator.h
[MODIFIED] chrome/test/base/browser_test_base.cc
...

Diff Details:
--- a/chrome/browser/ui/browser.cc
+++ b/chrome/browser/ui/browser.cc
@@ -123,6 +123,10 @@ void Browser::CreateTabContents() {
   web_contents->SetDelegate(this);
+  
+  // Initialize memory coordinator for better resource management
+  memory_coordinator_ = std::make_unique<BrowserMemoryCoordinator>(this);
+  memory_coordinator_->Initialize();
 }

🗂️ Common File Paths

Here are some frequently queried file paths in the Chromium repository:

Core Chrome Browser

cd src
python get_chromium_commits.py "chrome/browser/ui/browser.cc"
python get_chromium_commits.py "chrome/browser/chrome_browser_main.cc"
python get_chromium_commits.py "chrome/browser/profiles/profile_manager.cc"

Blink Rendering Engine

python get_chromium_commits.py "third_party/blink/renderer/core/dom/document.cc"
python get_chromium_commits.py "third_party/blink/renderer/core/html/parser/html_parser.cc"
python get_chromium_commits.py "third_party/blink/renderer/core/css/css_parser.cc"

Component Libraries

python get_chromium_commits.py "components/sync/service/data_type_manager.cc"
python get_chromium_commits.py "components/autofill/core/browser/autofill_manager.cc"
python get_chromium_commits.py "components/password_manager/core/browser/password_manager.cc"

Build and Configuration

python get_chromium_commits.py "BUILD.gn"
python get_chromium_commits.py "DEPS"
python get_chromium_commits.py ".gn"

Content/Web Platform

python get_chromium_commits.py "content/browser/renderer_host/render_process_host_impl.cc"
python get_chromium_commits.py "content/renderer/render_frame_impl.cc"

📁 Project Structure

chromium-commits/
├── src/
│   ├── get_chromium_commits.py    # Main CLI tool and ChromiumCommitFetcher class
│   ├── batch_get_commits.py       # Batch processing utility
│   ├── example_usage.py           # Usage examples and demonstrations
│   └── server.py                  # MCP server implementation
├── pyproject.toml                 # Project configuration and dependencies
├── uv.lock                        # Dependency lock file
├── Dockerfile                     # Docker container configuration
├── smithery.yaml                  # Smithery MCP server configuration
├── LICENSE                        # MIT license
└── README.md                      # This documentation

⚙️ Requirements

• Python: 3.10 or higher
• Dependencies:
  • requests>=2.31.0 (HTTP requests to Chromium Gitiles API)
  • mcp>=1.0.0 (Model Context Protocol server functionality)
• Network: Internet connection to access Chromium Gitiles API

🚀 API Reference

ChromiumCommitFetcher Class

Methods

• get_file_latest_commit(file_path: str) -> Optional[Dict]

  • Returns basic commit information for the latest change to the specified file

• get_commit_details(commit_hash: str) -> Optional[Dict]

  • Returns detailed information about a specific commit including all modified files

• get_file_commit_info(file_path: str, detailed: bool = False, show_diff: bool = False) -> Optional[str]

  • Returns formatted commit information with optional details and diff

🔧 Configuration

The tool uses the Chromium Gitiles API and requires no authentication. All requests are made to:

https://chromium.googlesource.com/chromium/src

🤝 Contributing

1. Fork the repository
2. Create a feature branch: git checkout -b feature-name
3. Make your changes and add tests
4. Commit your changes: git commit -am 'Add some feature'
5. Push to the branch: git push origin feature-name
6. Submit a pull request

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🔗 Links

• Chromium Source Code
• Chromium Gitiles API Documentation
• Model Context Protocol
• Smithery MCP Server Registry