Run over only a subset of project files to speedup the rewrite (only what changed in git branch)

[fprochazka]

Hi, running OR on a big codebase is a major pain, as it currently takes around a minute to finish on my project. I know there is a commercial offering, that might solve this at least partially, but we're not yet that heavily invested into the project to consider it.

I would ideally want to only run OR on files that changed in a branch (diffed against main). I can solve easily the "getting list of files to rewrite" subproblem, but I don't know how to force OR to run only on this subset. I understand its probably gonna need to parse most of if not the entire project, to be able to run the recipes in the few files, but even that should be a major speedup I hope.

I was thinking I could even somehow generate the config dynamically and pass it to OR, but for the maven plugin there is only <exclusions> .

I guess I'm willing to try to explore the possibility of forking the maven plugin and hacking this into it somehow (and then sending a PR), but that's not a small feat.

Any other ideas or options I've overlooked? Thanks!