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Contributing.md

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How to contribute

Third-party patches are welcome and help keep Geppetto great. We want to keep it as easy as possible to contribute changes that get things working in your environment. There are a few guidelines that we need contributors to follow so that we can keep on top of things.

Getting Started

To contribute your changes back to the Geppetto project, you need to:

  • Make sure you have a GitHub account
  • Submit a ticket for your issue, assuming one does not already exist.
    • Clearly describe the issue including steps to reproduce when it is a bug.
    • Make sure you fill in the earliest version that you know has the issue.
  • Fork the repository on GitHub

Making Changes

  • Add your fork as a remote git repository in Eclipse
  • Create a topic branch from where you want to base your work.
    • This is usually the master branch.
    • Only target release branches if you are certain your fix must be on that branch.
    • To quickly create a topic branch based on master; git branch fix/master/my_contribution master then checkout the new branch with git checkout fix/master/my_contribution. Please avoid working directly on the master branch.
  • Make commits of logical units.
  • Check for unnecessary whitespace with git diff --check before committing.
  • Make sure your commit messages are in the proper format.
    (#99999) Make the example in CONTRIBUTING imperative and concrete

    Without this patch applied the example commit message in the CONTRIBUTING
    document is not a concrete example.  This is a problem because the
    contributor is left to imagine what the commit message should look like
    based on a description rather than an example.  This patch fixes the
    problem by making the example concrete and imperative.

    The first line is a real life imperative statement.  The body describes the
    behavior without the patch, why this is a problem, and how the patch fixes 
    the problem when applied.
  • Make sure you have added the necessary tests for your changes.
  • Run all the tests to assure nothing else was accidentally broken.

Making Trivial Changes

Documentation

For changes of a trivial nature to comments and documentation, it is appropriate to start the first line of a commit with '(doc)'.

    (doc) Add documentation commit example to CONTRIBUTING

    There is no example for contributing a documentation commit
    to the Puppet repository. This is a problem because the contributor
    is left to assume how a commit of this nature may appear.

    The first line is a real life imperative statement with '(doc)' in
    place of what would have been the ticket number in a 
    non-documentation related commit. The body describes the nature of
    the new documentation or comments added.

Submitting Changes

  • Sign the Contributor License Agreement.
  • Push your changes to a topic branch in your fork of the repository.
  • Submit a pull request to the repository in the puppetlabs organization.

Additional Resources