Add GitHub Action to deploy Jupyter Lite on GitHub Pages

[rgaiacs]

This is a draft. It requires conversation with @chainsawriot.

[rgaiacs]

This is ready for review.

Manual inspection

First download https://github.com/gesistsa/sweater/actions/runs/32034554429/artifacts/9290176459 as github-pages.zip.

cd $(mktemp -d)
unzip /path/to/github-pages.zip
tar -xf artifact.tar
python3 -m http.server

Using a private tab, open http://0.0.0.0:8000/.

You will see

You can open any of the Jupyter Notebooks. For example, SemAxis.ipynb.

And you can execute the cells. After execute all the cells, you will see

Manual build

1. Install mamba
2. Create a new mamba environment based on the file .github/build-environment.yml
3. Build the Jupyter Lite environment by running jupyter lite build --contents gh-pages --contents tests/testdata --output-dir dist. The R dependencies are defined in the environment.yaml file.

To preview the manual build, start a local web server by running $(cd dist && python3 -m http.server).

Topics for consideration before merge

• Should we copy the text to the Jupyter Notebook files
• Should we store the execution output in the Jupyter Notebook files for when they are preview on GitHub

Minor changes before merge

• rename file SemAxis.ipynb to sem-axis.ipynb