`git-maintenance` aims to improve the health & performance of especially large git repositories. A part of git maintenance tasks is `prefetch`. However, at the moment, it prefetches all objects from all branches — > The prefetch task updates the object directory with the latest objects from all registered remotes. This seems non-optimal for repositories where users use the main repository to fork branches (instead of personal forks) as the remote could have thousands of refs and objects from branches that a user may not care about, leading to a very large prefetch dir. For large repositories, it might instead be helpful to only fetch objects on `main` or `master` because those are the ones most likely to be used by users. To this effect, git maintenance should perhaps expose a maintenance.prefetch.refs setting that subsets prefetching only to certain references. Is this something that has been raised before / is in works by any chance or something that would be an acceptable contribution? -- Regards, Shubham Kanodia
