Contributing to Apache Maven Shared Utils
You have found a bug or you have an idea for a cool new feature? Contributing code is a great way to give something back to the open source community, learn from experts and widen your network. Before you dig right into the code, there are a few guidelines that we need contributors to follow so that we can have a chance of keeping on top of things.
- Make sure you have a JIRA account.
- Make sure you have a GitHub account.
- If you're planning to implement a new feature, it makes sense to discuss your changes on the dev list first. This way you can make sure you're not wasting your time on something that isn't considered to be in Apache Maven's scope.
- Submit a ticket for your issue or enhancement, 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 and Submitting Changes
We accept Pull Requests via GitHub. The developer mailing list is the
main channel of communication for contributors.
There are some guidelines which will make applying PRs easier for us:
- Create a branch from where you want to base your work (this is usually the master branch). Push your changes to a branch in your fork of the repository.
- Make commits of logical units.
- You can use version 9 of Java, but be aware that the code has target of version 6.
- Respect the original code style: by using the same codestyle,
patches should only highlight the actual difference, not being disturbed by any formatting issues:
- Only use spaces for indentation.
- Create minimal diffs - disable on save actions like reformat source code or organize imports. If you feel the source code should be reformatted, create a separate PR for this change.
- Check for unnecessary whitespace with
git diff --checkbefore committing.
- Make sure your commit messages are in the proper format. Your commit message should contain the key of the JIRA issue.
[MSHARED-XXX] - Subject of the JIRA Ticket Optional supplemental description.
- Make sure you have added the necessary tests (JUnit/IT) for your changes.
- Run all the tests with
mvn testto assure nothing else was accidentally broken.
- Submit a pull request to the repository in the Apache organization.
If you plan to contribute on a regular basis, please consider filing a contributor license agreement.
Making Trivial Changes
For changes of a trivial nature to comments and documentation, it is not always necessary to create a new ticket in JIRA. In this case, it is appropriate to start the first line of a commit with '(doc)' instead of a ticket number.