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Cerpus welcomes contributions to our open source projects on Github. When contributing, please follow the Cerpus Community Code of Conduct.


We are continously trying to improve Edlib so your suggestions and feedback are important to us. So, feel free to submit issues and enhancement requests.


Translating Edlib is an excellent way of contributing to the project. Translations enable multilingual usage and a better product for all users. Go to our section about translating Edlib and learn how to do it.


Please refer to each project's style and contribution guidelines for submitting patches and additions. In general, we follow the "fork-and-pull" Git workflow.

  1. Fork the repo on GitHub.
  2. Clone the project to your own machine.
  3. Commit changes to your own branch.
  4. Push your work back up to your fork.
  5. Submit a Pull request so that we can review your changes.

NOTE: Be sure to merge the latest from "upstream" before making a pull request!

Git Commit Messages

To speed up the review process and to keep the logs tidy, we recommend the following simple rules on how to write good commit messages:

Summary Line

  • It should contain less than 50 characters. It is best to make it short.
  • Introduce what has changed, using imperatives: fix, add, modify, and so forth.


  • Add extra explanation if you feel it will help others to understand the summary content.
  • If you want, use bullet points (each bullet beginning with a hyphen or an asterisk).
  • Avoid writing in one line. Use line breaks so the reader does not have to scroll horizontally.

To ease review, try to limit your commits to a single, self-contained issue. This will also help others to understand and manage them in the future.

For more information and tips on how to write good commit messages, see the GitHub guide.

Edlib is licensed under the GNU General Public License, version 3.0.

Cerpus does not require you to assign the copyright of your contributions, you retain the copyright. Cerpus does require that you make your contributions available under the GNU GPL 3.0 license in order for it be included in the main repo.

If appropriate, include the GNU GPL 3.0 license summary at the top of each file along with the copyright info. If you are adding a new file that you wrote, include your name in the copyright notice in the license summary at the top of the file.