cookiecutter-napari-plugin

Minimal Cookiecutter template for authoring napari plugins.

NOTE: This repo is not meant to be cloned/forked directly! Please read "Getting Started" below

Getting Started

Create your plugin package

Install Cookiecutter and generate a new napari plugin project:

pip install cookiecutter
cookiecutter https://github.com/napari/cookiecutter-napari-plugin

Cookiecutter prompts you for information regarding your plugin (A new folder will be created in your current working directory):

full_name [Napari Developer]: Ramon y Cajal
email [yourname@example.com]: ramon@cajal.es
github_username_or_organization [githubuser]: neuronz52
# NOTE: for packages whose primary purpose is to be a napari plugin, we
# recommend using the 'napari-' prefix in the package name.
# If your package provides functionality outside of napari, you may
# choose to leave napari out of the name.
plugin_name [napari-foobar]: napari-growth-cone-finder
module_name [growth_cone_finder]: napari_growth_cone_finder
short_description [A simple plugin to use with napari]:
# you can select from various plugin template examples
include_reader_plugin [y]:
include_writer_plugin [y]:
include_dock_widget_plugin [y]:
include_function_plugin [y]:

Select docs_tool:
1 - mkdocs
2 - sphinx
3 - none
Choose from 1, 2, 3 [1]: 3
Select license:
1 - BSD-3
2 - MIT
3 - Mozilla Public License 2.0
4 - Apache Software License 2.0
5 - GNU LGPL v3.0
6 - GNU GPL v3.0
Choose from 1, 2, 3, 4, 5, 6 (1, 2, 3, 4, 5, 6) [1]:
INFO:post_gen_project:Moving files for mkdocs.

You just created a minimal napari plugin, complete with tests and ready for automatic deployment!

For more detailed information on each prompt see the prompts reference.

napari-growth-cone-finder/
│
├── .github
│   └── workflows
│      └── test_and_deploy.yml
├── docs
│   └── index.md
├── LICENSE
├── MANIFEST.in
├── mkdocs.yml
├── napari_growth_cone_finder
│   ├── __init__.py
│   ├── _dock_widget.py
│   ├── _reader.py
│   └── _tests
│       ├── __init__.py
│       ├── test_dock_widget.py
│       └── test_reader.py
├── README.md
├── requirements.txt
├── setup.py
└── tox.ini

Initialize a git repository in your package

NOTE: This is important not only for version management, but also if you want to pip install your package locally for testing with pip install -e .. (because the version of your package is managed using git tags, see below)

cd napari-growth-cone-finder
git init
git add .
git commit -m 'initial commit'

Upload it to github

1. Create a new github repository

2. Add your newly created github repo as a remote and push:

   # here, continuing with the example above...
   # but replace with your own username and repo name
   
   git remote add origin https://github.com/neuronz52/napari-growth-cone-finder.git
   git push -u origin main

Monitor testing and coverage

The repository should already be setup to run your tests each time you push an update (configuration is in .github/workflows/test_and_deploy.yml). You can monitor them in the "Actions" tab of your github repository. If you're following along, go have a look... they should be running right now!

When the tests are done, test coverage will be viewable at codecov.io (assuming your repository is public): https://codecov.io/gh/<your-github-username>/<your-package-name>

Set up automatic deployments

Your new package is also nearly ready to automatically deploy to PyPI (whenever you create a tagged release), so that your users can simply pip install your package. You just need to create an API token to authenticate with PyPi, and then add it to your github repository:

1. If you don't already have one, create an account at PyPI
2. Verify your email address with PyPI, (if you haven't already)
3. Generate an API token at PyPi: In your account settings go to the API tokens section and select "Add API token". Make sure to copy it somewhere safe!
4. Create a new encrypted secret" in your github repository with the name "TWINE_API_KEY", and paste in your API token.

You are now setup for automatic deployment!

Automatic deployment and version management

Each time you want to deploy a new version, you just need to create a tagged commit, and push it to your main branch on github. Your package is set up to use setuptools_scm for version management, meaning you don't need to hard-code your version anywhere in your package. It will be inferred from the tag each time you release.

# the tag will be used as the version string for your package
# make it meaningful: https://semver.org/
git tag -a v0.1.0 -m "v0.1.0"

# make sure to use follow-tags so that the tag also gets pushed to github
git push --follow-tags

Note: as of git 2.4.1, you can set follow-tags as default with git config --global push.followTags true

Monitor the "actions" tab on your github repo for progress... and when the "deploy" step is finished, your new version should be visible on pypi:

https://pypi.org/project/<your-package-name>/

and available for pip install with:

# for example
pip install napari-growth-cone-finder

Testing locally

You can run your tests locally in multiple different python environments using tox, just by entering tox on the command line. If you are using conda for environment management, you may wish to install tox-conda to make tox play nice with conda.

pip install tox tox-conda
tox -e py36,py37,py38 # run tests on multiple python versions

If you don't wish to test locally on all supported python versions, you can test quicker by just using pytest directly, (but you'll need to make sure that pytest and your package is installed in your environment):

pip install -e .
pip install pytest

pytest  # run test in current environment

Create your documentation

If you chose to create docs with your plugin read the corresponding docs for Sphinx or MkDocs

Pre-commit

This template includes a default yaml configuration for pre-commit. Among other things, it includes checks for best practices in napari plugins. You may edit the config at .pre-commit-config.yaml

To use it run:

pip install pre-commit
pre-commit install

You can also have these checks run automatically for you when you push to github by installing pre-commit ci on your repository.

Features

• Installable PyPI package featuring a setup.py
• tox test suite, testing various python versions and platforms.
• README.md file that contains useful information about your plugin
• Continuous integration configuration for github actions that handles testing and deployment of tagged releases
• git-tag-based version management with setuptools_scm
• Optional documentation with either Sphinx or MkDocs
• Choose from several licenses, including BSD-3, MIT, MPL v2.0, Apache v2.0, GNU GPL v3.0, or GNU LGPL v3.0

Resources

Please consult the napari plugin docs for more information on how to create a plugin.

Issues

If you encounter any problems with this cookiecutter template, please file an issue along with a detailed description.

License

Distributed under the terms of the BSD-3 license, cookiecutter-napari-plugin is free and open source software.