Limit code coverage assessment to within a given directory for efficiency

[IanButterworth]

Code coverage has --code-coverage=user but for CI most of the time you only care about coverage within the repo being tested.

Code coverage also slows execution down a fair bit.

Would it be possible to add the option to --code-coverage=/path/to/repo in such a way that would make it more efficient?

One thought was if the source file info was within the linetable? That could make it relatively simple to extend functionality to do_coverage, perhaps?

julia/src/codegen.cpp

Line 6935 in 56bb340

auto do_coverage = [&] (bool in_user_code) {

[IanButterworth]

Perhaps --code-coverage={none|project|user|all} i.e. add project which would just be the active project directory