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CONTRIBUTING.md

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Contributing
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Contributing to Scalding

This page lists recommendations and requirements for how to best contribute to Scalding. We strive to obey these as best as possible. As always, thanks for contributing--we hope these guidelines make it easier and shed some light on our approach and processes.

Key branches

  • master is the latest, deployed version.
  • develop is where development happens and all pull requests should be submitted.

Pull requests

Submit pull requests against the develop branch. Try not to pollute your pull request with unintended changes. Keep it simple and small.

Contributing Documentation

The documentation for Scalding's website is stored in the docs/src/main/tut directory of the docs subproject.

Scalding's documentation is powered by sbt-microsites and tut. tut compiles any code that appears in the documentation, ensuring that snippets and examples won't go out of date.

We would love your help making our documentation better. If you see a page that's empty or needs work, please send us a pull request making it better.

  • Make sure to add some code examples! Any code block of this form in any documentation markdown file will get compiled using tut:

    <your code>

(Please replace toot with tut!) tut will evaluate your code as if you'd pasted it into a REPL and insert each line's results in the output. State persists across tut code blocks, so feel free to alternate code blocks with text discussion. See the tut README for more information on the various options you can use to customize your code blocks.

  • Add your page to the appropriate section in the menu

Generating the Site

run sbt docs/makeMicrosite to generate a local copy of the microsite.

Previewing the site

  1. Install jekyll locally, depending on your platform, you might do this with any of the following commands:
yum install jekyll
apt-get install jekyll
gem install jekyll
  1. In a shell, navigate to the generated site directory in docs/target/site
  2. Start jekyll with jekyll serve --incremental
  3. Navigate to http://127.0.0.1:4000/scalding/ in your browser
  4. Make changes to your site, and run sbt docs/makeMicrosite to regenerate the site. The changes should be reflected as soon as sbt docs/makeMicrosite completes.

Post-release

After the release occurs, you will need to update the documentation. Here is a list of the places that will definitely need to be updated:

  • README.md: update version numbers
  • CHANGES.md: summarize changes since last release

(Other changes may be necessary, especially for large releases.)

You can get a list of changes between release tags v0.1.2 and v0.2.0 via git log v0.1.2..v0.2.0. Scanning this list of commit messages is a good way to get a summary of what happened, although it does not account for conversations that occurred on Github.

Once the relevant documentation changes have been committed, new release notes should be added. You can add a release by clicking the "Draft a new release" button on that page, or if the relevant release already exists, you can click "Edit release".

The website should then be updated via sbt docs/publishMicrosite.

License

By contributing your code, you agree to license your contribution under the terms of the APLv2.