diff-coverage does not work if latest commit does not have coverage data

[zafarabbas]

(posting issue here as requested by codeclimate support)

We have an issue that we need help with resolving.

• Our repository (juulio) has a master branch, developers work in sub branches and merge their changes as PRs.
• We would like codeclimate/diff-coverage to be a Required status check for all PRs before they merge.
• Currently since the diff-coverage status check depends on the coverage data available from the state of the master branch at the time a branch was created. If that master commit has broken or unavailable coverage data, it the status check would fail forever in the branch until a new merge happens from the master branch for a commit that does have coverage data.
• We would like an option in code climate to continue to use the last successful coverage data from master (if possible)
• Is this a configuration or code change from code climate? If it can be supported it would save us a lot of work we are doing right now rebasing and opening new PRs.
• This is pretty blocking.

Thanks for all your support.

[ale7714]

@zafarabbas 👋thank you for your feedback! Currently, we don't support this but we have on our roadmap plans to improve this experience. I'll post back when I have more news.

[krezchikov42]

If we do encounter this, how do we generate coverage data for the last commit?