Consider using buildifier

[hochhaus]

As a feature request, rules_closure could consider using buildifier to format internal BUILD files.

https://github.com/bazelbuild/buildifier

[jart]

+1

I've already been using buildifier this whole time. It's integrated into emacs and eclipse internally at Google.

The question is: how do we enforce it in CI? Hey @damienmg there's no such thing as METADATA presubmits in the Bazel world. We obviously don't want to have a rule in every single one of our dozens of BUILD files to make them validate themselves. What do we do?

[davidzchen]

The closest thing to our METADATA presubmit hooks would probably be the Git precommit hook.

[damienmg]

We will add this a test job to ci.bazel.io.