git

type Client interface {
	// Clone a repository at url into localPath. The clone is performed
	// non-bare, so the repository will have a worktree. If the local path is
	// not empty ErrRepositoryAlreadyExists is returned.
	Clone(ctx context.Context, url, localPath string) (Repository, error)

	// Open opens a repository from the given path. It detects if the
	// repository is bare or a normal one. If the path doesn't contain a valid
	// repository ErrRepositoryNotExists is returned.
	Open(path string) (Repository, error)

	// Init creates an empty non-bare git repository at the given path.
	// Non-bare means that the repository will have worktree. If the path is
	// not empty ErrRepositoryAlreadyExists is returned.
	Init(path string) (Repository, error)
}

type FakeClient struct {
	mock.Mock
}

type FakeRepository struct {
	mock.Mock
}

type Repository interface {
	// Fetch fetches references along with the objects necessary to complete
	// their histories, from the remote named origin.
	//
	// Returns nil if the operation is successful, NoErrAlreadyUpToDate if
	// there are no changes to be fetched, or an error.
	Fetch(ctx context.Context, refSpecs ...config.RefSpec) error

	// ResolveRevision resolves revision to corresponding hash. It will always
	// resolve to a commit hash, not a tree or annotated tag.
	ResolveRevision(revision plumbing.Revision) (*plumbing.Hash, error)

	// Checkout checks out the commit referenced by the provided hash. The
	// checkout is performed in force mode to throw away local changes.
	Checkout(hash plumbing.Hash) error
}