Need some way of translating the line in a file to the `position` param for a pull request review

Most of the code style/static analysis tools that I use work on an entire file, and not just a diff. It would be awesome to be able to run a code style check on whatever file changed, and then use this tool to automatically add a comment to the line in question inline in the PR.

Right now, there's not really a great way translate between a line in a file and the `position` param that Github needs in e.g. a bash script that's calling this utility, so I'm wondering if that might be easier in Go as a helper command or something. If this utility isn't the right place for that translation to happen, do you have any suggestions for other utilities that might handle that translation?

No files or tests are named. Start by tracing the Go CLI's pull-request review comment path and checking how GitHub's position parameter is currently supplied; done would require a decided interface for translating file lines and a demonstrated way to use it from the requested workflow.

Written by the indexing model from the issue text.