Delegate the creation and the moving of branches to libgit2 native me…

…thods

LibGit2Sharp/BranchCollection.cs

@@ -78,12 +78,20 @@ public Branch Checkout(string shaOrReferenceName)
         /// </summary>
         /// <param name = "name">The name of the branch.</param>
         /// <param name = "shaOrReferenceName">The target which can be sha or a canonical reference name.</param>
+        /// <param name = "allowOverwrite">True to allow silent overwriting a potentially existing branch, false otherwise.</param>
         /// <returns></returns>
-        public Branch Create(string name, string shaOrReferenceName)
+        public Branch Create(string name, string shaOrReferenceName, bool allowOverwrite = false)
         {
+            Ensure.ArgumentNotNullOrEmptyString(name, "name");
+
             ObjectId commitId = repo.LookupCommit(shaOrReferenceName).Id;
 
-            repo.Refs.Create(NormalizeToCanonicalName(name), commitId.Sha);
+            using (var osw = new ObjectSafeWrapper(commitId, repo))
+            {
+                GitOid oid;
+                Ensure.Success(NativeMethods.git_branch_create(out oid, repo.Handle, name, osw.ObjectPtr, allowOverwrite));
+            }
+
             return this[name];
         }
 
@@ -107,21 +115,20 @@ public void Delete(string name)
         }
 
         ///<summary>
-        ///  Rename an existing branch with a new name.
+        ///  Rename an existing local branch with a new name.
         ///</summary>
         ///<param name = "currentName">The current branch name.</param>
         ///<param name = "newName">The new name of the existing branch should bear.</param>
         ///<param name = "allowOverwrite">True to allow silent overwriting a potentially existing branch, false otherwise.</param>
         ///<returns></returns>
         public Branch Move(string currentName, string newName, bool allowOverwrite = false)
         {
-            Ensure.ArgumentNotNullOrEmptyString(currentName, "name");
+            Ensure.ArgumentNotNullOrEmptyString(currentName, "currentName");
             Ensure.ArgumentNotNullOrEmptyString(newName, "name");
 
-            Reference reference = repo.Refs.Move(NormalizeToCanonicalName(currentName), NormalizeToCanonicalName(newName),
-                                                 allowOverwrite);
+            Ensure.Success(NativeMethods.git_branch_move(repo.Handle, currentName, newName, allowOverwrite));
 
-            return this[reference.CanonicalName];
+            return this[newName];
         }
 
         private static bool LooksLikeABranchName(string referenceName)

LibGit2Sharp/Core/GitBranchType.cs

@@ -0,0 +1,11 @@
+using System;
+
+namespace LibGit2Sharp.Core
+{
+    [Flags]
+    internal enum GitBranchType
+    {
+        GIT_BRANCH_LOCAL = 1,
+        GIT_BRANCH_REMOTE = 2,
+    }
+}

LibGit2Sharp/Core/NativeMethods.cs

@@ -80,6 +80,27 @@ public static bool RepositoryStateChecker(RepositorySafeHandle repositoryPtr, Fu
         [DllImport(libgit2)]
         public static extern int git_blob_rawsize(GitObjectSafeHandle blob);
 
+        [DllImport(libgit2)]
+        public static extern int git_branch_create(
+            out GitOid oid_out,
+            RepositorySafeHandle repo,
+            [MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(Utf8Marshaler))] string branch_name,
+            GitObjectSafeHandle target,
+            [MarshalAs(UnmanagedType.Bool)] bool force);
+
+        [DllImport(libgit2)]
+        public static extern int git_branch_delete(
+            RepositorySafeHandle repo,
+            [MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(Utf8Marshaler))] string branch_name,
+            GitBranchType branch_type);
+
+        [DllImport(libgit2)]
+        public static extern int git_branch_move(
+            RepositorySafeHandle repo,
+            [MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(Utf8Marshaler))] string old_branch_name,
+            [MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(Utf8Marshaler))] string new_branch_name,
+            [MarshalAs(UnmanagedType.Bool)] bool force);
+
         [DllImport(libgit2)]
         public static extern IntPtr git_commit_author(GitObjectSafeHandle commit);
 

LibGit2Sharp/LibGit2Sharp.csproj

@@ -60,6 +60,7 @@
     <Compile Include="Core\DisposableEnumerable.cs" />
     <Compile Include="Core\EnumExtensions.cs" />
     <Compile Include="ChangeKind.cs" />
+    <Compile Include="Core\GitBranchType.cs" />
     <Compile Include="Core\GitDiff.cs" />
     <Compile Include="Core\GitError.cs" />
     <Compile Include="Core\GitObjectExtensions.cs" />