1 files changed, 80 insertions, 0 deletions

diff --git a/src/dtf/WixToolset.Dtf.Compression.Zip/ZipCompressionMethod.cs b/src/dtf/WixToolset.Dtf.Compression.Zip/ZipCompressionMethod.cs
new file mode 100644
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+++ b/src/dtf/WixToolset.Dtf.Compression.Zip/ZipCompressionMethod.cs
@@ -0,0 +1,80 @@
+// 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.Dtf.Compression.Zip
+{
+    using System.Diagnostics.CodeAnalysis;
+
+    /// <summary>
+    /// Identifies the compression method or &quot;algorithm&quot;
+    /// used for a single file within a zip archive.
+    /// </summary>
+    /// <remarks>
+    /// Proprietary zip implementations may define additional compression
+    /// methods outside of those included here.
+    /// </remarks>
+    public enum ZipCompressionMethod
+    {
+        /// <summary>
+        /// The file is stored (no compression)
+        /// </summary>
+        Store = 0,
+        
+        /// <summary>
+        /// The file is Shrunk
+        /// </summary>
+        Shrink = 1,
+        
+        /// <summary>
+        /// The file is Reduced with compression factor 1
+        /// </summary>
+        Reduce1 = 2,
+
+        /// <summary>
+        /// The file is Reduced with compression factor 2
+        /// </summary>
+        Reduce2 = 3,
+
+        /// <summary>
+        /// The file is Reduced with compression factor 3
+        /// </summary>
+        Reduce3 = 4,
+
+        /// <summary>
+        /// The file is Reduced with compression factor 4
+        /// </summary>
+        Reduce4 = 5,
+        
+        /// <summary>
+        /// The file is Imploded
+        /// </summary>
+        Implode = 6,
+        
+        /// <summary>
+        /// The file is Deflated;
+        /// the most common and widely-compatible form of zip compression.
+        /// </summary>
+        Deflate = 8,
+        
+        /// <summary>
+        /// The file is Deflated using the enhanced Deflate64 method.
+        /// </summary>
+        Deflate64 = 9,
+
+        /// <summary>
+        /// The file is compressed using the BZIP2 algorithm.
+        /// </summary>
+        BZip2 = 12,
+
+        /// <summary>
+        /// The file is compressed using the LZMA algorithm.
+        /// </summary>
+        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Lzma")]
+        Lzma = 14,
+
+        /// <summary>
+        /// The file is compressed using the PPMd algorithm.
+        /// </summary>
+        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Ppmd")]
+        Ppmd = 98
+    }
+}