Interface to the 'libgit2' library, which is a pure C
    implementation of the 'Git' core methods. Provides access to 'Git'
    repositories to extract data and running some basic 'Git'
    commands.
zlib headers and library. OpenSSL headers and
library. LibSSH2 (optional on non-Windows) to enable the SSH
transport.
'S4_classes.r' 'blame.r' 'blob.r' 'branch.r'
'bundle_r_package.r' 'checkout.r' 'commit.r' 'config.r'
'contributions.r' 'credential.r' 'diff.r' 'fetch.r' 'git2r.r'
'index.r' 'libgit2.r' 'merge.r' 'note.r' 'odb.r' 'plot.r'
'pull.r' 'punch_card.r' 'refspec.r' 'push.r' 'reference.r'
'reflog.r' 'remote.r' 'repository.r' 'reset.r' 'revparse.r'
'signature.r' 'stash.r' 'status.r' 'tag.r' 'time.r' 'tree.r'
'when.r'