RELEASE.md

Making a JupyterLab release

This document guides a contributor through creating a release of JupyterLab.

Check installed tools

Review CONTRIBUTING.md. Make sure all the tools needed to generate the built JavaScript files are properly installed.

Clean the repository

You can remove all non-tracked files with:

git clean -xfdi

This would ask you for confirmation before removing all untracked files. Make sure the dist/ folder is clean and avoid stale build from previous attempts.

Create the release

We publish the npm packages, a Python source package, and a Python universal binary wheel. We also publish a conda package on conda-forge (see below). See the Python docs on package uploading for twine setup instructions and for why twine is the recommended method.

# this ensures the latest builds of everything,
# then prompts you to select package versions.  When one package has an 
# effective major release, the packages that depend on it should also get a 
# major release, to prevent consumers that are using the `^` semver 
# requirement from getting a conflict.
#
# *** First, update jupyterlab/_version.py
npm run publish  
rm -rf dist
python setup.py sdist
python setup.py bdist_wheel --universal
twine upload dist/*
shasum -a 256 dist/*.tar.gz  # get the sha256 hash for conda-forge install

Publish on conda-forge

• Fork https://github.com/conda-forge/jupyterlab-feedstock
• Create a PR with the version bump
• Update recipe/meta.yaml with the new version and md5 and reset the build number to 0.