Show code quality notices on diffs/MRs
Problem to Solve
When considering changes between branches/in an MR, one of the most important factors for teams to consider is impact to quality. We already offer quality metrics, but we can improve this by showing code quality remarks in the diff prior to accepting a change.
Issue idea came from: !1984 (comment 31097686)
It will need !1984 (merged) to be finished first
There are several open source packages for languages that offer quality analysis. We will instrument GitLab using the same code that shows JUnit test results to understand the output of these additional tools, and show the result inline with the diff.
These links will link to the diff. I propose we offer inline error messages related code climate there, like codeclimate itself does as well.