Inline code coverage should support cobertura reports with multiple source directories
Problem to solve
Right now as mentioned in #215747 (closed) the inline code coverage feature does not support files with multiple source directories. This is a problem for at least Java projects and likely other languages as well.
This may also have implications for monorepos, however monorepos are more likely to generate multiple coverage reports and upload them all. We should investigate whether we should solve the monorepo concerns as part of this issue or create a follow-up to address them.
Intended users
User experience goal
When uploading a cobertura report for a project with multiple directories/nodes we should be able to correctly attribute coverage data to files in each directory in a merge request.
Proposal
From initial issue
-
cobertura.rbneeds to differentiate between Array and String entries of source key -
coverage_reports.rbshould match up files with sourcepaths
Apart from the spec (just playing around there really) the code in cobertura.rb and coverage_reports.rb is the workaround we are currently using for the issue. As noted in the diff, I expect you probably want a solution using the pick method, but I'm not fluent enough in Ruby to make that workaround.
@iamricecake can you weigh in on how we might solve this?
Further details
Permissions and Security
This is an enhancement of an existing feature, N/A.
Documentation
We should remove the documentation of this limitation when we fix it.