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Contributing

Contributions are welcome, and they are greatly appreciated! Every little bit helps, and credit will always be given.

.. toctree::
   :numbered:
   :maxdepth: 2

   types_of_contributions
   contributor_setup
   contributor_guidelines
   contributor_tips
   core_committer_guide

Types of Contributions

You can contribute in many ways:

Create Cookiecutter Templates

Some other Cookiecutter templates to list in the :ref:`README <readme>` would be great.

If you create a Cookiecutter template, submit a pull request adding it to README.rst.

Report Bugs

Report bugs at https://github.com/audreyr/cookiecutter/issues.

If you are reporting a bug, please include:

  • Your operating system name and version.
  • Any details about your local setup that might be helpful in troubleshooting.
  • If you can, provide detailed steps to reproduce the bug.
  • If you don't have steps to reproduce the bug, just note your observations in as much detail as you can. Questions to start a discussion about the issue are welcome.

Fix Bugs

Look through the GitHub issues for bugs. Anything tagged with "bug" is open to whoever wants to implement it.

Implement Features

Look through the GitHub issues for features. Anything tagged with "enhancement" is open to whoever wants to implement it.

Write Documentation

Cookiecutter could always use more documentation, whether as part of the official Cookiecutter docs, in docstrings, or even on the web in blog posts, articles, and such.

Submit Feedback

The best way to send feedback is to file an issue at https://github.com/audreyr/cookiecutter/issues.

If you are proposing a feature:

  • Explain in detail how it would work.
  • Keep the scope as narrow as possible, to make it easier to implement.
  • Remember that this is a volunteer-driven project, and that contributions are welcome :)

Setting Up the Code for Local Development

Here's how to set up cookiecutter for local development.

  1. Fork the cookiecutter repo on GitHub.

  2. Clone your fork locally:

    $ git clone git@github.com:your_name_here/cookiecutter.git

  3. Install your local copy into a virtualenv. Assuming you have virtualenvwrapper installed, this is how you set up your fork for local development:

    $ mkvirtualenv cookiecutter
$ cd cookiecutter/
$ python setup.py develop

  4. Create a branch for local development:

    $ git checkout -b name-of-your-bugfix-or-feature

Now you can make your changes locally.

  1. When you're done making changes, check that your changes pass the tests and flake8:

    $ flake8 cookiecutter tests
$ python setup.py test
$ tox

  2. Commit your changes and push your branch to GitHub:

    $ git add .
$ git commit -m "Your detailed description of your changes."
$ git push origin name-of-your-bugfix-or-feature

  3. Check that the test coverage hasn't dropped:

    coverage run --source cookiecutter setup.py test
coverage report -m
coverage html

  4. Submit a pull request through the GitHub website.

Contributor Guidelines

Pull Request Guidelines

Before you submit a pull request, check that it meets these guidelines:

  1. The pull request should include tests.
  2. If the pull request adds functionality, the docs should be updated. Put your new functionality into a function with a docstring, and add the feature to the list in README.rst.
  3. The pull request should work for Python 2.6, 2.7, 3.3, and PyPy. Check https://travis-ci.org/audreyr/cookiecutter/pull_requests and make sure that the tests pass for all supported Python versions.

Coding Standards

TODO

Tips

To run a particular test:

$ python -m unittest tests.test_find.TestFind.test_find_template

To run a subset of tests:

$ python -m unittest tests.test_find

Troubleshooting for Contributors

Python 3.3 tests fail locally

Try upgrading Tox to the latest version. I noticed that they were failing locally with Tox 1.5 but succeeding when I upgraded to Tox 1.7.1.

Core Committer Guide

Vision and Scope

Core committers, use this section to:

  • Guide your instinct and decisions as a core committer
  • Limit the codebase from growing infinitely

Command-Line Accessible

  • Provides a command-line utility that creates projects from cookiecutters
  • Extremely easy to use without having to think too hard
  • Flexible for more complex use via optional arguments

API Accessible

  • Entirely function-based and stateless (Class-free by intentional design)
  • Usable in pieces for developers of template generation tools

Being Jinja2-specific

  • Sets a standard baseline for project template creators, facilitating reuse
  • Minimizes the learning curve for those who already use Flask or Django
  • Minimizes scope of Cookiecutter codebase

Extensible

Being extendable by people with different ideas for Jinja2-based project template tools.

  • Entirely function-based
  • Aim for statelessness
  • Lets anyone write more opinionated tools

Freedom for Cookiecutter users to build and extend.

  • No officially-maintained cookiecutter templates, only ones by individuals
  • Commercial project-friendly licensing, allowing for private cookiecutters and private Cookiecutter-based tools

Fast and Focused

Cookiecutter is designed to do one thing, and do that one thing very well.

  • Cover the use cases that @audreyr needs, and as little as possible beyond that :)
  • Generates project templates from the command-line or API, nothing more
  • Minimize internal line of code (LOC) count
  • Ultra-fast project generation for high performance downstream tools

Inclusive

  • Cross-platform and cross-version support are more important than features/functionality
  • Fixing Windows bugs even if it's a pain, to allow for use by more beginner coders

Stable

  • Aim for 100% test coverage and covering corner cases
  • No pull requests will be accepted that drop test coverage on any platform, including Windows
  • Conservative decisions patterned after CPython's conservative decisions with stability in mind
  • Stable APIs that tool builders can rely on
  • New features require a +1 from @audreyr

VCS-Hosted Templates

Cookiecutter project templates are intentionally hosted VCS repos as-is.

  • They are easily forkable
  • It's easy for users to browse forks and files
  • They are searchable via standard Github/Bitbucket/other search interface
  • Minimizes the need for packaging-related cruft files
  • Easy to create a public project template and host it for free
  • Easy to collaborate

Process: Pull Requests

If a pull request is untriaged:

  • Look at the roadmap
  • Set it for the milestone where it makes the most sense
  • Add it to the roadmap

How to prioritize pull requests, from most to least important:

  1. Fixes for broken tests. Broken means broken on any supported platform or Python version.
  2. Extra tests to cover corner cases.
  3. Minor edits to docs.
  4. Bug fixes.
  5. Major edits to docs.
  6. Features.

Ensure that each pull request meets all requirements in this checklist: https://gist.github.com/audreyr/4feef90445b9680475f2

Process: Issues

If an issue is a bug that needs an urgent fix, mark it for the next patch release. Then either fix it or mark as please-help.

For other issues: encourage friendly discussion, moderate debate, offer your thoughts.

New features require a +1 from @audreyr.

Process: Roadmap

How to number milestones:

Milestone size:

  • If a milestone contains too much, move some to the next milestone.
  • Err on the side of more frequent patch releases.

Responsibilities

  1. Give priority to bug fixes over new features. This includes fixes for the Windows tests that broke at some point.
  2. Ensure cross-platform compatibility for every change that's accepted. Windows, Mac, Debian & Ubuntu Linux.
  3. Ensure that code that goes into core meets all requirements in this checklist: https://gist.github.com/audreyr/4feef90445b9680475f2
  4. Create issues for any major changes and enhancements that you wish to make. Discuss things transparently and get community feedback.
  5. Don't add any classes to the codebase unless absolutely needed. Err on the side of using functions.
  6. Be welcoming to newcomers and encourage diverse new contributors from all backgrounds. See the Python Community Code of Conduct (https://www.python.org/psf/codeofconduct/).

Becoming a Core Committer

Contributors may be given core commit privileges. Preference will be given to those with:

  1. Past contributions to Cookiecutter and other open-source projects. Contributions to Cookiecutter include both code (both accepted and pending) and friendly participation in the issue tracker. Quantity and quality are considered.
  2. A coding style that @audreyr finds simple, minimal, and clean.
  3. Access to resources for cross-platform development and testing.
  4. Time to devote to the project regularly.

Autogenerated from the docs via make contributing