1 files changed, 25 insertions, 0 deletions

diff --git a/src/api/wix/WixToolset.Extensibility/Services/IFileSystem.cs b/src/api/wix/WixToolset.Extensibility/Services/IFileSystem.cs
new file mode 100644
index 00000000..d633c823
--- /dev/null
+++ b/src/api/wix/WixToolset.Extensibility/Services/IFileSystem.cs
@@ -0,0 +1,25 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixToolset.Extensibility.Services
+{
+    /// <summary>
+    /// Abstracts basic file system operations.
+    /// </summary>
+    public interface IFileSystem
+    {
+        /// <summary>
+        /// Copies a file.
+        /// </summary>
+        /// <param name="source">The file to copy.</param>
+        /// <param name="destination">The destination file.</param>
+        /// <param name="allowHardlink">Allow hardlinks.</param>
+        void CopyFile(string source, string destination, bool allowHardlink);
+
+        /// <summary>
+        /// Moves a file.
+        /// </summary>
+        /// <param name="source">The file to move.</param>
+        /// <param name="destination">The destination file.</param>
+        void MoveFile(string source, string destination);
+    }
+}