We definitely welcome your patches and contributions to gRPC! Please read the gRPC organization's governance rules and contribution guidelines before proceeding.
If you are new to github, please start by reading Pull Request howto
In order to protect both you and ourselves, you will need to sign the Contributor License Agreement.
How to get your contributions merged smoothly and quickly.
Create small PRs that are narrowly focused on addressing a single concern. We often times receive PRs that are trying to fix several things at a time, but only one fix is considered acceptable, nothing gets merged and both author‘s & review’s time is wasted. Create more PRs to address different concerns and everyone will be happy.
If you are searching for features to work on, issues labeled Status: Help Wanted is a great place to start. These issues are well-documented and usually can be resolved with a single pull request.
If you are adding a new file, make sure it has the copyright message template at the top as a comment. You can copy over the message from an existing file and update the year.
The grpc package should only depend on standard Go packages and a small number of exceptions. If your contribution introduces new dependencies which are NOT in the list, you need a discussion with gRPC-Go authors and consultants.
For speculative changes, consider opening an issue and discussing it first. If you are suggesting a behavioral or API change, consider starting with a gRFC proposal.
Provide a good PR description as a record of what change is being made and why it was made. Link to a github issue if it exists.
If you want to fix formatting or style, consider whether your changes are an obvious improvement or might be considered a personal preference. If a style change is based on preference, it likely will not be accepted. If it corrects widely agreed-upon anti-patterns, then please do create a PR and explain the benefits of the change.
Unless your PR is trivial, you should expect there will be reviewer comments that you‘ll need to address before merging. We’ll mark it as Status: Requires Reporter Clarification if we expect you to respond to these comments in a timely manner. If the PR remains inactive for 6 days, it will be marked as stale and automatically close 7 days after that if we don't hear back from you.
Maintain clean commit history and use meaningful commit messages. PRs with messy commit history are difficult to review and won't be merged. Use rebase -i upstream/master to curate your commit history and/or to bring in latest changes from master (but avoid rebasing in the middle of a code review).
Keep your PR up to date with upstream/master (if there are merge conflicts, we can't really merge your change).
All tests need to be passing before your change can be merged. We recommend you run tests locally before creating your PR to catch breakages early on.
./scripts/vet.sh to catch vet errorsgo test -cpu 1,4 -timeout 7m ./... to run the testsgo test -race -cpu 1,4 -timeout 7m ./... to run tests in race modeExceptions to the rules can be made if there's a compelling reason for doing so.