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# apache-beam-jupyterlab-sidepanel

A side panel providing information and controls to run Apache Beam notebooks interactively.


## Requirements

* JupyterLab >= 2.0

## Install (WIP)

```bash
jupyter labextension install apache-beam-jupyterlab-sidepanel
```

## Contributing

### Install

The `jlpm` command is JupyterLab's pinned version of
[yarn](https://yarnpkg.com/) that is installed with JupyterLab. You may use
`yarn` or `npm` in lieu of `jlpm` below.

```bash
# Clone the repo to your local environment
# Move to apache-beam-jupyterlab-sidepanel directory

# Install dependencies
jlpm
# Build Typescript source
jlpm build
# Link your development version of the extension with JupyterLab
jupyter labextension link .

# Rebuild Typescript source after making changes
jlpm build
# Rebuild JupyterLab after making any changes
jupyter lab build
```

You can watch the source directory and run JupyterLab in watch mode to watch for changes in the extension's source and automatically rebuild the extension and application.

```bash
# Watch the source directory in another terminal tab
jlpm watch
# Run jupyterlab in watch mode in one terminal tab
jupyter lab --watch
```

Now every change will be built locally and bundled into JupyterLab. Be sure to refresh your browser page after saving file changes to reload the extension (note: you'll need to wait for webpack to finish, which can take 10s+ at times).

### Test

To run all tests, under `apache-beam-jupyterlab-sidepanel` directory, simply do:

```bash
# Make sure all dependencies are installed.
jlpm

# Run all tests.
jlpm jest
```

This project uses `ts-jest` to test all ts/tsx files under `src/__tests__` directory.

To run a single test, find out the name of a test in the source code that looks like:

```javascript
it('does ABC', () => {...})
```

Then run:

```bash
jlpm jest -t 'does ABC'
```

### Format and lint

The project uses prettier for formatting and eslint for lint.
Prettier is configured as a plugin used by eslint.
There are pre-configured yarn scripts to execute them.

```bash
# Under apache-beam-jupyterlab-sidepanel directory.

# Make sure dependencies are installed.
# Prettier and eslint are both installed as dev dependencies.
jlpm

# Check format and lint issues.
jlpm eslint:check

# Check then fix in place format and lint issues.
jlpm eslint
```

### Uninstall

```bash
jupyter labextension uninstall apache-beam-jupyterlab-sidepanel
```
