Fix Repository.IsEmpty implementation

This should fix issue #52.

1 files changed, 13 insertions, 1 deletions

diff --git a/LibGit2Sharp/RepositoryInformation.cs b/LibGit2Sharp/RepositoryInformation.cs
index 5d6baf55..2be3d62d 100644
--- a/LibGit2Sharp/RepositoryInformation.cs
+++ b/LibGit2Sharp/RepositoryInformation.cs
@@ -47,7 +47,19 @@ namespace LibGit2Sharp
         /// </value>
         public bool IsEmpty
         {
-            get { return NativeMethods.git_repository_is_empty(repo.Handle); }
+            get
+            {
+                //TODO: Remove this once git_repository_is_empty() accepts detached head state
+                if (repo.Refs["HEAD"] is DirectReference)
+                {
+                    return false;
+                }
+
+                var res = NativeMethods.git_repository_is_empty(repo.Handle);
+                Ensure.Success(res, true);
+
+                return (res == 1);
+            }
         }
 
         /// <summary>