private string DescribeRevision([CanBeNull] ObjectId objectId, int maxLength = 0)
{
if (objectId == null)
{
// No parent at all, present as working directory
return(Strings.Workspace);
}
var revision = _revisionGrid.GetRevision(objectId);
if (revision == null)
{
return(objectId.ToShortString(length: 8));
}
return(_revisionGrid.DescribeRevision(revision, maxLength));
}