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Contributing

👍🎉 First off, thanks for taking the time to contribute! 🎉👍

When contributing to this repository, please first discuss the change you wish to make via issue or any other method with the owners of this repository before making a change.

Please note we have a code of conduct, please follow it in all your interactions with the project.

Simple Process

Tests

make test

Publish to Test

Follow this tutorial: https://leonard.io/blog/2017/01/an-in-depth-guide-to-deploying-to-maven-central/

make snapshot

Publish to Production

make release

Pull Request Process

  1. Ensure any install or build dependencies are removed before the end of the layer when doing a build.
  2. Update the README.md with details of changes to the interface, this includes new environment variables, exposed ports, useful file locations and container parameters.
  3. Increase the version numbers in any examples files and the README.md to the new version that this Pull Request would represent. The versioning scheme we use is SemVer.
  4. You may merge the Pull Request in once you have the sign-off of two other developers, or if you do not have permission to do that, you may request the second reviewer to merge it for you.

Submitting an Issue

Before you submit your issue search the archive, maybe your question was already answered.

If your issue appears to be a bug, and hasn't been reported, open a new issue. Help us to maximize the effort we can spend fixing issues and adding new features, by not reporting duplicate issues. Providing the following information will increase the chances of your issue being dealt with quickly:

  • Overview of the issue - if an error is being thrown a non-minified stack trace helps
  • Motivation for or Use Case - explain why this is a bug for you
  • GHDFS Version(s) - is it a regression?
  • Hadoop Version in use - is this a problem with all hadoop versions or only 2.7.3?
  • Reproduce the error - provide a live example, screenshot, and/or a unambiguous set of steps. The more the better.
  • Related issues - has a similar issue been reported before? Reference the related issues in the description.
  • Suggest a Fix - if you can't fix the bug yourself, perhaps you can point to what might be causing the problem (line of code or commit). If you're requesting a feature, describe how the feature might work to resolve the user story.

Submitting a Pull Request

Before you submit your pull request consider the following guidelines:

  • Search GitHub for an open or closed Pull Request that relates to your submission. You don't want to duplicate effort.

  • Make your changes in a new git branch

    git checkout -b my-fix-branch master

  • Create your patch, including appropriate test cases.

  • Follow our Code Style.

  • Run the full test suite, including make test, and ensure that all tests pass.

  • Commit your changes using a descriptive commit message

    git commit -a

    Note: the optional commit -a command line option will automatically "add" and "rm" edited files.

  • Build your changes locally to ensure all the tests pass

    make test

  • Push your branch to GitHub:

    git push origin my-fix-branch

  • In GitHub, send a pull request to master.

  • If we suggest changes then:

    • Make the required updates.

    • Re-run the test suite to ensure tests are still passing.

    • Rebase your branch and force push to your GitHub repository (this will update your Pull Request):

      git rebase master -i
git push -f

That's it! Thank you for your contribution!

After your pull request is merged

After your pull request is merged, you can safely delete your branch and pull the changes from the main (upstream) repository:

  • Delete the remote branch on GitHub either through the GitHub web UI or your local shell as follows:

    git push origin --delete my-fix-branch

  • Check out the master branch:

    git checkout master -f

  • Delete the local branch:

    git branch -D my-fix-branch

Reviewing Pull Requests

Except for critical, urgent or very small fixes, we try to leave pull requests open for most of the day or overnight if something comes in late in the day, so that multiple people have the chance to review/comment. Anyone who reviews a pull request should leave a note to let others know that someone has looked at it. For larger commits, we like to have a +1 from someone else on the core team and/or from other contributor(s). Please note if you reviewed the code or tested locally -- a +1 by itself will typically be interpreted as your thinking its a good idea, but not having reviewed in detail.

If the PR contains a database migration, please tag it with the help wanted. A contributor for the project will work with you to get this tested in a staging environment along with getting the migration running on the database. These PRs will also be code reviewed at this time as well.