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CONTRIBUTING.rst

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Contributing to co2mpas

If you want to contribute to CO2MPAS and improve it, your help is very welcome. Your contribution should be sent by a pull request. Next sections explains how to implement and submit a new functionality:

  • clone the repository
  • implement a new functionality
  • open a pull request

Clone the repository

The first step to contribute to CO2MPAS is to clone the repository:

  • Create a personal fork of the co2mpas repository on Github.
  • Clone the fork on your local machine. Your remote repo on Github is called origin.
  • Add the original repository as a remote called upstream, to maintain updated your fork.
  • If you created your fork a while ago be sure to pull upstream changes into your local repository.
  • Create a new branch to work on! Branch from dev.

How to implement a new functionality

Test cases are very important. This library uses a data-driven testing approach. To implement a new function I recommend the test-driven development cycle. Hence, when you think that the code is ready, add new test in test folder.

When all test cases are ok (python setup.py test), open a pull request.

Note

A pull request without new test case will not be taken into consideration.

How to open a pull request

Well done! Your contribution is ready to be submitted:

  • Squash your commits into a single commit with git's interactive rebase. Create a new branch if necessary. Always write your commit messages in the present tense. Your commit message should describe what the commit, when applied, does to the code – not what you did to the code.
  • Push your branch to your fork on Github (i.e., git push origin dev).
  • From your fork open a pull request in the correct branch. Target the project's dev branch!
  • Once the pull request is approved and merged you can pull the changes from upstream to your local repo and delete your extra branch(es).