Introduce EncodingMarshaler.Cleanup()

LibGit2Sharp/Core/EncodingMarshaler.cs

@@ -21,12 +21,7 @@ namespace LibGit2Sharp.Core
 
         public virtual void CleanUpNativeData(IntPtr pNativeData)
         {
-            if (pNativeData == IntPtr.Zero)
-            {
-                return;
-            }
-
-            Marshal.FreeHGlobal(pNativeData);
+            Cleanup(pNativeData);
         }
 
         public int GetNativeDataSize()
@@ -83,6 +78,16 @@ namespace LibGit2Sharp.Core
             return new IntPtr(buffer);
         }
 
+        public static void Cleanup(IntPtr pNativeData)
+        {
+            if (pNativeData == IntPtr.Zero)
+            {
+                return;
+            }
+
+            Marshal.FreeHGlobal(pNativeData);
+        }
+
         public static unsafe String FromNative(Encoding encoding, IntPtr pNativeData)
         {
             if (pNativeData == IntPtr.Zero)

LibGit2Sharp/Core/GitRepositoryInitOptions.cs

@@ -41,12 +41,7 @@ namespace LibGit2Sharp.Core
 
         public void Dispose()
         {
-            if (WorkDirPath == IntPtr.Zero)
-            {
-                return;
-            }
-
-            Marshal.FreeHGlobal(WorkDirPath);
+            EncodingMarshaler.Cleanup(WorkDirPath);
             WorkDirPath = IntPtr.Zero;
         }
     }

LibGit2Sharp/Core/GitStrArrayIn.cs

@@ -45,7 +45,7 @@ namespace LibGit2Sharp.Core
 
             for (int i = 0; i < nbOfPaths; i++)
             {
-                Marshal.FreeHGlobal(pathPtrs[i]);
+                EncodingMarshaler.Cleanup(pathPtrs[i]);
             }
 
             Marshal.FreeHGlobal(strings);

LibGit2Sharp/Index.cs

@@ -5,7 +5,6 @@ using System.Diagnostics;
 using System.Globalization;
 using System.IO;
 using System.Linq;
-using System.Runtime.InteropServices;
 using LibGit2Sharp.Core;
 using LibGit2Sharp.Core.Compat;
 using LibGit2Sharp.Core.Handles;
@@ -554,7 +553,7 @@ namespace LibGit2Sharp
             };
 
             Proxy.git_index_add(handle, indexEntry);
-            Marshal.FreeHGlobal(indexEntry.Path);
+            EncodingMarshaler.Cleanup(indexEntry.Path);
         }
 
         internal void ReloadFromDisk()