docs/src/contributing.md

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# Contributing

Apache Paimon Rust welcomes contributions from everyone. See the full [Contributing Guide](https://github.com/apache/paimon-rust/blob/main/CONTRIBUTING.md) for detailed instructions.

## Quick Start

1. Fork the [repository](https://github.com/apache/paimon-rust)
2. Clone your fork: `git clone https://github.com/<your-username>/paimon-rust.git`
3. Create a feature branch: `git checkout -b feature/my-feature`
4. Make your changes and add tests
5. Run checks locally before submitting
6. Open a Pull Request

## Development Setup

```bash
# Ensure you have the correct Rust toolchain
rustup show

# Build the project
cargo build

# Run the unit tests (a bare `cargo test` also builds the Python binding and
# can fail to link libpython on some platforms)
cargo test -p paimon --all-targets --features vortex
cargo test -p paimon-rest-server --all-targets

# Format code
cargo fmt --all

# Lint (matches CI)
cargo clippy --locked --all-targets --workspace --features vortex -- -D warnings
```

The integration suites automatically extract a committed Java-written golden
warehouse into temporary directories; Spark and Docker are not required:

```bash
cargo test -p paimon-integration-tests --all-targets
cargo test -p paimon-datafusion --all-targets
```

Set `PAIMON_TEST_WAREHOUSE` to test an existing warehouse instead. Missing fixture
tables fail the tests rather than being skipped or generated by the Rust writer.

## Finding Issues

- Check [open issues](https://github.com/apache/paimon-rust/issues) for tasks to work on
- Issues labeled `good first issue` are great starting points

## Community

- **GitHub Issues**: [apache/paimon-rust/issues](https://github.com/apache/paimon-rust/issues)
- **Mailing List**: [dev@paimon.apache.org](mailto:dev@paimon.apache.org) ([subscribe](mailto:dev-subscribe@paimon.apache.org) / [archives](https://lists.apache.org/list.html?dev@paimon.apache.org))
- **Slack**: [#paimon channel](https://join.slack.com/t/the-asf/shared_invite/zt-2l9rns8pz-H8PE2Xnz6KraVd2Ap40z4g) on the ASF Slack