Function prune_packed_objects 

pub fn prune_packed_objects(
    objects_dir: &Path,
    opts: PrunePackedOptions,
) -> Result<Vec<PathBuf>>

Remove loose objects that are already stored in a pack file.

For each loose object under objects_dir whose crate::objects::ObjectId appears in at least one local pack index, or in a non-promisor pack in an alternate object directory, the file is deleted (or, with PrunePackedOptions::dry_run, paths are listed in the return value only). A duplicate loose object is kept when the alternate holds the same id only as loose, matching Git. Empty two-char prefix directories are removed afterwards.

Returns the list of paths that were (or would be) removed.

Errors

• crate::error::Error::Io for directory or file access failures.