What I need is a programatic way to compare the items that exist in two GitHub repositories (repo A and repo B), do a diff, and list the ones that don't exist in repo B (i.e. which ones were not copied from repo A to repo B)
Recently we moved the TeamMentor issues/bug list into the public repository: https://github.com/TeamMentor/Master/issues
Before (when started to use GitHub for TeamMentor development) we used the private repository https://github.com/DinisCruz/TeamMentor-v3.0/issues
So, any tools or services that currently do this?