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Contributing to OpenFlight

Thank you for your interest in contributing to OpenFlight! This document provides guidelines and instructions for contributing.

Getting Started

Prerequisites

  • Python 3.10 or higher
  • Node.js 20+ (for UI development)
  • Git
  • uv package manager (required)

Development Setup

  1. Clone the repository

    git clone https://github.com/jewbetcha/openflight.git
cd openflight

  2. Install dependencies

    make install

    This installs Python dependencies (including dev tools) and UI dependencies.

    Or manually:

    uv sync --group dev
cd ui && npm install

  3. Install pre-commit hooks

    make hooks

    This runs ruff, pylint, and ESLint automatically before each commit.

  4. Build the UI (for frontend development)

    make build-ui

Running in Development

# Run server in mock mode (no hardware needed)
make dev

# Or manually:
scripts/start-kiosk.sh --mock

# Run UI development server (separate terminal)
cd ui && npm run dev

Code Quality Standards

All checks can be run at once with:

make lint

Python

We use pylint for linting with a minimum score of 9.0 and ruff for formatting.

# Check code quality
uv run pylint src/openflight/

# Auto-format with ruff
make format

TypeScript/React

Use the checked-in UI color palette when adding or changing visual states.

cd ui
npm run lint      # ESLint
npm run build     # Type check + build

Running Tests

# Run all tests
make test

# Run specific test file
uv run pytest tests/test_launch_monitor.py -v

# Run with coverage (if pytest-cov installed)
uv run pytest tests/ --cov=src/openflight --cov-report=html

All tests must pass before submitting a PR.

Submitting Changes

Reporting Issues

Use the issue templates to file bugs, request features, or get help with hardware setup. Check existing issues before creating new ones.

Pull Request Requirements

Every pull request must meet all three of the following requirements. PRs that do not will be asked for changes before review.

  1. Scoped to a single feature or fix with a clear story. A PR should do one thing. The description must explain what the change is and why it was required — the problem it solves or the need it meets. If you catch yourself writing "and also…", split the work into separate PRs.

  2. Includes automated tests. New behavior needs new tests; bug fixes need a test that reproduces the bug (see Development Rules — write the failing test first). If you believe tests genuinely don't apply, say so explicitly in the PR and explain why.

  3. Describes the manual (human) testing performed. Automated tests aren't enough. Document what you verified by hand: what you ran (mock mode, real hardware, specific UI flows), what you observed (numbers, screenshots), and which edge cases you exercised. "Tests pass" is not manual testing.

These requirements are enforced automatically by the PR Checks workflow, which will fail if:

  • a required PR description section (why it was required, automated tests, manual testing) is left empty;
  • source code under src/openflight/ or ui/src/ changes without any accompanying test changes — add the no-tests-needed label (and explain why in the description) for the rare PR where tests genuinely don't apply;
  • the PR title doesn't follow the conventional format <type>(optional scope): <description> (allowed types: feat, fix, docs, refactor, test, chore, perf, build, ci, style, revert), e.g. feat(kld7): add launch angle smoothing.

Pull Request Process

  1. Fork the repository and create a feature branch

    git checkout -b feature/your-feature-name

  2. Make your changes with clear, focused commits, scoped to a single feature or fix

  3. Add automated tests covering the new behavior or reproducing the fixed bug

  4. Ensure quality checks pass

    make test
make lint
cd ui && npm run build

  5. Manually test your change and note what you verified by hand

  6. Update documentation if needed

    • Update README.md for user-facing changes
    • Update relevant docs in docs/
    • Add entry to docs/CHANGELOG.md under [Unreleased]

  7. Submit a pull request and fill out the PR template — including the automated tests, manual testing, and "why it was required" sections

Commit Messages

Use clear, descriptive commit messages:

Add ball detection indicator to UI header

- Create BallDetectionIndicator component
- Add shot data to useSocket hook
- Update App.tsx to display indicator

What We're Looking For

High-priority contributions:

  • Bug fixes with tests
  • Documentation improvements
  • Performance optimizations
  • Test coverage improvements

Feature ideas:

  • Launch angle detection improvements
  • Better carry distance models
  • Mobile app / Bluetooth support
  • Integration with golf simulation software

Project Structure

openflight/
├── src/openflight/       # Python package
│   ├── ops243.py         # Radar driver
│   ├── launch_monitor.py # Shot detection
│   ├── server.py         # WebSocket server
│   ├── rolling_buffer/   # OPS capture and signal processing
│   ├── iwr6843/          # Current angle radar
│   ├── kld7/             # Legacy angle radar
│   ├── sim/              # Simulator connectors
│   └── cloud/            # FlightWeb uploader
├── ui/                   # React frontend
│   └── src/
│       ├── components/   # UI components
│       └── hooks/        # React hooks
├── tests/                # Test suite
├── scripts/
│   ├── start-kiosk.sh    # Main startup script
│   ├── analysis/         # Post-session analysis & data capture
│   ├── hardware-test/    # Radar & trigger testing/debugging
│   ├── setup/            # Pi setup, systemd, deployment
│   └── vision/           # Camera, YOLO, ML training
├── models/               # ML models
└── docs/                 # Documentation

Testing Without Hardware

OpenFlight supports mock mode for development without hardware:

make dev

The MockLaunchMonitor class simulates realistic shot data based on TrackMan averages.

Questions?

  • Use the issue templates for bugs, features, or hardware help
  • Check existing issues before creating new ones
  • Be respectful and constructive in discussions

License

By contributing, you agree that your contributions will be licensed under the GNU Affero General Public License v3.0 or later (AGPL-3.0-or-later).