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Contributing

We highly value and encourage contributions from the community!

Ignite is Apache 2.0 licensed and accepts contributions via GitHub Pull Requests.This document outlines some of the conventions on development workflow, commit message formatting, contact points and other resources to make it easier to get your contribution accepted.

We gratefully welcome improvements to documentation as well as to code.

Community and Access

Join weaveworks-ignite@googlegroups.com for calendar invites to calls and edit access to community documents. You can ask questions and discuss features on the #ignite slack channel.

We also hope to see you at our developer meetings.

Guidelines

If you have a feature suggestion or found a bug, head over to GitHub issues and see if there's an open issue matching your description. If not feel free to open a new issue and add short description:

  • In case of a bug, be sure to include the steps you performed and what Ignite responded so it's easy for others to reproduce
  • If you have a feature suggestion, describe it in moderate detail and include some potential uses you see for the feature. We prioritize the features to be implemented based on their usefulness/popularity. Of course if you want to start contributing yourself, go ahead! We'll be more than happy to review your pull requests.

The maintainers will add the correct labels/milestones to the issue for you.

Contributing your code

The process to contribute code to Ignite is very straight forward.

  1. Go to the project on GitHub and click the Fork button in the top-right corner. This will create your own copy of the repository in your personal account.
  2. Using standard git workflow, clone your fork, make your changes and then commit and push them to your repository.
  3. Run make autogen tidy, then commit and push the changes. Just put make autogen tidy as the commit message. This (re)generates any new/changed autogenerated content and cleans up the code's formatting.
  4. Go back to GitHub, select Pull requests from the top bar and click New pull request to the right. Select the compare across forks link. This will show repositories in addition to branches.
  5. From the head repository dropdown, select your forked repository. If you made a new branch, select it in the compare dropdown. You should always target weaveworks/ignite and master as the base repository and branch.
  6. With your changes visible, click Create pull request. Give it a short, descriptive title and write a comment describing your changes. Click Create pull request.

That's it! Maintainers follow pull requests closely and will add the correct labels and milestones. After a maintainer's review small changes/improvements could be requested, don't worry, feedback can be easily addressed by performing the requested changes and doing a commit and push. Your new changes will automatically be added to the pull request. (Don't forget to add a new make autogen tidy commit if needed.)

We also have Continuous Integration (CI) set up (powered by CircleCI) that will build the code and verify it compiles and passes all tests successfully. If your changes didn't pass CI, you can click Details to go and check why it happened. To integrate your changes, we require CI to pass.

If you have any questions or need help, don't hesitate to ask on our mailing list or the #ignite slack channel. Have fun contributing!

Make targets

To compile the ignite, ignited and ignite-spawn binaries, run

make build-all-amd64

ignite, ignited and ignite-spawn are also Make targets if you only need to build specific ones. Building ignite-spawn binary using either way also automatically packages it in its Docker container, and tags it as weaveworks/ignite:dev for development.

To (re)generate autogenerated content in case your changes require it:

make autogen

Before submitting a PR:

make autogen tidy

This will clean up the code (run e.g. gofmt) in addition to making sure all autogenerated content is up to date.

Other targets:

  • Install the ignite and ignited binaries: make install
  • Generate dependency graph: make graph
    • Depends on sfdp (usually found in the graphviz package)
  • Push the weaveworks/ignite Docker image: make image-push
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