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First off, thank you for considering contributing to the Prohelion ArrowPoint Telemetry tools. Prohelion is made up of former and current electric vehicle racers from around the world and we have always enjoyed the support of the community in the events we have been involved with. By open sourcing our software we are hoping to support other teams based on our learnings and experience, by contributing to the code we appreciate you helping as well.

Where do I go from here?

If you've noticed a bug or have a question search the issue tracker to see if someone else in the community has already created a ticket. If not, go ahead and make one!

Fork & create a branch

If this is something you think you can fix, then fork the Prohelion software and create a branch with a descriptive name.

A good branch name would be (where issue #325 is the ticket you're working on):

git checkout -b 325-add-japanese-translations

Get the test suite running

Not all of our software has test cases or test coverage (feel free to contribute!), but where there are test cases please make sure you have a 100% pass rates before trying to contribute code back to us.

Did you find a bug?

  • Ensure the bug was not already reported by searching all issues.

  • If you're unable to find an open issue addressing the problem, open a new one. Be sure to include a title and clear description, as much relevant information as possible, and a code sample or an executable test case demonstrating the expected behavior that is not occurring.

Implement your fix or feature

At this point, you're ready to make your changes! Feel free to ask for help; everyone is a beginner at first 😸

View your changes in across multiple browsers or tablets

One of the biggest challenges we have with our code is making sure that it works across a range of tablets / PCs / phones and the various technologies that people bring in to race environments.

Please try and test as much as possible across multiple platforms.

Get the style right

Your patch should follow the same conventions & pass the same code quality checks as the rest of the project.

Make a Pull Request

At this point, you should switch back to your master branch and make sure it's up to date with the Prohelion ArrowPoint-Tablet master branch:

git remote add upstream
git checkout master
git pull upstream master

Then update your feature branch from your local copy of master, and push it!

git checkout 325-add-japanese-translations
git rebase master
git push --set-upstream origin 325-add-japanese-translations

Finally, go to GitHub and make a Pull Request :D

Keeping your Pull Request updated

If a maintainer asks you to "rebase" your PR, they're saying that a lot of code has changed, and that you need to update your branch so it's easier to merge.

To learn more about rebasing in Git, there are a lot of good [resources][interactive rebase] but here's the suggested workflow:

git checkout 325-add-japanese-translations
git pull --rebase upstream master
git push --force-with-lease 325-add-japanese-translations

Merging a Pull Request (maintainers only)

A Pull Request can only be merged into master by a maintainer if:

  • It is passing all test cases
  • It has been approved by at least two maintainers. If it was a maintainer who opened the Pull Request, only one extra approval is needed.
  • It has no requested changes.
  • It is up to date with current master.

Any maintainer is allowed to merge a Pull Request if all of these conditions are met.

Shipping a release (maintainers only)

Maintainers need to do the following to push out a release:

  • Make sure all pull requests are in and that changelog is current
  • Update version.rb file and changelog with new version number
  • If it's not a patch level release, create a stable branch for that release, otherwise switch to the stable branch corresponding to the patch release you want to ship:
git checkout master
git fetch ArrowPoint-Telemetry
git rebase ArrowPoint-Telemetry/master
# If the release is 2.1.x then this should be: 2-1-stable
git checkout -b N-N-stable
git push ArrowPoint-Tablet N-N-stable:N-N-stable