docs/README.md

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# DataFusion Documentation

This folder contains the source content of the [User Guide](./source/user-guide)
and [Contributor Guide](./source/contributor-guide). These are both published to
https://datafusion.apache.org/ as part of the release process.

## Dependencies

Install build dependencies and build the documentation using
[uv](https://docs.astral.sh/uv/):

```sh
uv sync
uv run bash build.sh
```

The docs build regenerates the workspace dependency graph via
`docs/scripts/generate_dependency_graph.sh`, so ensure `cargo`, `cargo-depgraph`
(`cargo install cargo-depgraph --version ^1.6 --locked`), and Graphviz `dot`
(`brew install graphviz` or `sudo apt-get install -y graphviz`) are available.

## Build & Preview

Run the provided script to build the HTML pages.

```bash
# If using venv, ensure you have activated it
./build.sh
```

The HTML will be generated into a `build` directory. Open `build/html/index.html`
in your preferred browser, e.g.

Preview the site on Linux by running this command.

```bash
# On macOS
open build/html/index.html
# On Linux with Firefox
firefox build/html/index.html
```

## Making Changes

To make changes to the docs, simply make a Pull Request with your
proposed changes as normal. When the PR is merged the docs will be
automatically updated.

## Release Process

This documentation is hosted at https://datafusion.apache.org/

When the PR is merged to the `main` branch of the DataFusion
repository, a [github workflow](https://github.com/apache/datafusion/blob/main/.github/workflows/docs.yaml) which:

1. Builds the html content
2. Pushes the html content to the [`asf-site`](https://github.com/apache/datafusion/tree/asf-site) branch in this repository.

The Apache Software Foundation provides https://datafusion.apache.org/,
which serves content based on the configuration in
[.asf.yaml](https://github.com/apache/datafusion/blob/main/.asf.yaml),
which specifies the target as https://datafusion.apache.org/.