(chocolateyGH-121) IFileSystem.read_file_bytes

Allow IFileSystem to read a file and return the file bytes as an array.

src/chocolatey/infrastructure/filesystem/DotNetFileSystem.cs

@@ -231,6 +231,11 @@ public string read_file(string filePath)
             return File.ReadAllText(filePath, get_file_encoding(filePath));
         }
 
+        public byte[] read_file_bytes(string filePath)
+        {
+            return File.ReadAllBytes(filePath);
+        }
+
         public FileStream open_file_readonly(string filePath)
         {
             return File.OpenRead(filePath);

src/chocolatey/infrastructure/filesystem/IFileSystem.cs

@@ -196,6 +196,13 @@ public interface IFileSystem
         /// <returns>A string of the file contents</returns>
         string read_file(string filePath);
 
+        /// <summary>
+        /// Returns the contents of a file as bytes.
+        /// </summary>
+        /// <param name="filePath">The filepath.</param>
+        /// <returns>A byte array of the file contents</returns>
+        byte[] read_file_bytes(string filePath);
+
         /// <summary>
         ///   Opens a file
         /// </summary>
@@ -330,5 +337,6 @@ public interface IFileSystem
         /// <param name="path">The path.</param>
         /// <param name="attributes">The attributes.</param>
         void ensure_file_attribute_set(string path, FileAttributes attributes);
+
     }
 }