CloneRepository clones a git repository from the given endpoint into the billy.Filesystem.

Download is a library.JobFn function to download a git repository and store it in a borges.Library.

FetchChanges fetches changes for the given remote into the borges.Repository.

PrepareRepository returns a borges.Repository ready to fetch changes.

RootCommit traverse the commit history for the given remote following the first parent of each commit.

ErrNotDownloadJob is returned when a not download job is found.

ErrObjectTypeNotSupported returned by ResolveCommit when the referenced object isn't a Commit nor a Tag.

ErrRepoAlreadyExists is returned if there is an attempt to retrieve an already downloaded git repository.