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CONTRIBUTING.md

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How to Contribute

We would love to accept your patches and contributions to this project. Here is how you can help.

Filing issues

Filing issues is an important way you can contribute to the Wire Project. We want your feedback on things like bugs, desired API changes, or just anything that isn't working for you.

Bugs

If your issue is a bug, open one here. The easiest way to file an issue with all the right information is to run go bug. go bug will print out a handy template of questions and system information that will help us get to the root of the issue quicker.

Changes

Unlike the core Go project, we do not have a formal proposal process for changes. If you have a change you would like to see in Wire, please file an issue with the necessary details.

Triaging

The Go Cloud team triages issues at least every two weeks, but usually within two business days. Bugs or feature requests are either placed into a Sprint milestone which means the issue is intended to be worked on. Issues that we would like to address but do not have time for are placed into the Unplanned milestone.

Contributing Code

We love accepting contributions! If your change is minor, please feel free submit a pull request. If your change is larger, or adds a feature, please file an issue beforehand so that we can discuss the change. You're welcome to file an implementation pull request immediately as well, although we generally lean towards discussing the change and then reviewing the implementation separately.

Finding something to work on

If you want to write some code, but don't know where to start or what you might want to do, take a look at our Unplanned milestone. This is where you can find issues we would like to address but can't currently find time for. See if any of the latest ones look interesting! If you need help before you can start work, you can comment on the issue and we will try to help as best we can.

Contributor License Agreement

Contributions to this project can only be made by those who have signed Google's Contributor License Agreement. You (or your employer) retain the copyright to your contribution, this simply gives us permission to use and redistribute your contributions as part of the project. Head over to https://cla.developers.google.com/ to see your current agreements on file or to sign a new one.

As a personal contributor, you only need to sign the Google CLA once across all Google projects. If you've already signed the CLA, there is no need to do it again. If you are submitting code on behalf of your employer, there's a separate corporate CLA that your employer manages for you.

Making a pull request

  • Follow the normal pull request flow
  • Build your changes using Go 1.11 with Go modules enabled. Wire's continuous integration uses Go modules in order to ensure reproducible builds.
  • Test your changes using go test ./.... Please add tests that show the change does what it says it does, even if there wasn't a test in the first place.
  • Feel free to make as many commits as you want; we will squash them all into a single commit before merging your change.
  • Check the diffs, write a useful description (including something like Fixes #123 if it's fixing a bug) and send the PR out.
  • Travis CI will run tests against the PR. This should happen within 10 minutes or so. If a test fails, go back to the coding stage and try to fix the test and push the same branch again. You won't need to make a new pull request, the changes will be rolled directly into the PR you already opened. Wait for Travis again. There is no need to assign a reviewer to the PR, the project team will assign someone for review during the standard triage process.

Code review

All submissions, including submissions by project members, require review. It is almost never the case that a pull request is accepted without some changes requested, so please do not be offended!

When you have finished making requested changes to your pull request, please make a comment containing "PTAL" (Please Take Another Look) on your pull request. GitHub notifications can be noisy, and it is unfortunately easy for things to be lost in the shuffle.

Once your PR is approved (hooray!) the reviewer will squash your commits into a single commit, and then merge the commit onto the Wire master branch. Thank you!

Github code review workflow conventions

(For project members and frequent contributors.)

As a contributor:

  • Try hard to make each Pull Request as small and focused as possible. In particular, this means that if a reviewer asks you to do something that is beyond the scope of the Pull Request, the best practice is to file another issue and reference it from the Pull Request rather than just adding more commits to the existing PR.
  • Adding someone as a Reviewer means "please feel free to look and comment"; the review is optional. Choose as many Reviewers as you'd like.
  • Adding someone as an Assignee means that the Pull Request should not be submitted until they approve. If you choose multiple Assignees, wait until all of them approve. It is fine to ask someone if they are OK with being removed as an Assignee.
    • Note that if you don't select any assignees, ContributeBot will turn all of your Reviewers into Assignees.
  • Make as many commits as you want locally, but try not to push them to Github until you've addressed comments; this allows the email notification about the push to be a signal to reviewers that the PR is ready to be looked at again.
  • When there may be confusion about what should happen next for a PR, be explicit; add a "PTAL" comment if it is ready for review again, or a "Please hold off on reviewing for now" if you are still working on addressing comments.
  • "Resolve" comments that you are sure you've addressed; let your reviewers resolve ones that you're not sure about.
  • Do not use git push --force; this can cause comments from your reviewers that are associated with a specific commit to be lost. This implies that once you've sent a Pull Request, you should use git merge instead of git rebase to incorporate commits from the master branch.

As a reviewer:

  • Be timely in your review process, especially if you are an Assignee.
  • Try to use Start a Review instead of single comments, to reduce email spam.
  • "Resolve" your own comments if they have been addressed.
  • If you want your review to be blocking, and are not currently an Assignee, add yourself as an Assignee.

When squashing-and-merging:

  • Ensure that all of the Assignees have approved.
  • Do a final review of the one-line PR summary, ensuring that it accurately describes the change.
  • Delete the automatically added commit lines; these are generally not interesting and make commit history harder to read.