1 files changed, 154 insertions, 0 deletions

diff --git a/src/dtf/WixToolset.Dtf.WindowsInstaller.Package/TransformInfo.cs b/src/dtf/WixToolset.Dtf.WindowsInstaller.Package/TransformInfo.cs
new file mode 100644
index 00000000..0bf3d3f9
--- /dev/null
+++ b/src/dtf/WixToolset.Dtf.WindowsInstaller.Package/TransformInfo.cs
@@ -0,0 +1,154 @@
+// 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.WindowsInstaller.Package
+{
+    using System;
+    using System.IO;
+    using System.Globalization;
+
+    /// <summary>
+    /// Contains properties of a transform package (.MST).
+    /// </summary>
+    public class TransformInfo
+    {
+        /// <summary>
+        /// Reads transform information from a transform package.
+        /// </summary>
+        /// <param name="mstFile">Path to a transform package (.MST file).</param>
+        public TransformInfo(string mstFile)
+        {
+            this.name = Path.GetFileName(mstFile);
+            using (SummaryInfo transformSummInfo = new SummaryInfo(mstFile, false))
+            {
+                this.DecodeSummaryInfo(transformSummInfo);
+            }
+        }
+
+        /// <summary>
+        /// Reads transform information from the summary information of a transform package.
+        /// </summary>
+        /// <param name="name">Filename of the transform (optional).</param>
+        /// <param name="transformSummaryInfo">Handle to the summary information of a transform package (.MST file).</param>
+        public TransformInfo(string name, SummaryInfo transformSummaryInfo)
+        {
+            this.name = name;
+            this.DecodeSummaryInfo(transformSummaryInfo);
+        }
+
+        private void DecodeSummaryInfo(SummaryInfo transformSummaryInfo)
+        {
+            try
+            {
+                string[] rev = transformSummaryInfo.RevisionNumber.Split(new char[] { ';' }, 3);
+                this.targetProductCode = rev[0].Substring(0, 38);
+                this.targetProductVersion = rev[0].Substring(38);
+                this.upgradeProductCode = rev[1].Substring(0, 38);
+                this.upgradeProductVersion = rev[1].Substring(38);
+                this.upgradeCode = rev[2];
+
+                string[] templ = transformSummaryInfo.Template.Split(new Char[] { ';' }, 2);
+                this.targetPlatform = templ[0];
+                this.targetLanguage = 0;
+                if (templ.Length >= 2 && templ[1].Length > 0)
+                {
+                    this.targetLanguage = Int32.Parse(templ[1], CultureInfo.InvariantCulture.NumberFormat);
+                }
+
+                this.validateFlags = (TransformValidations) transformSummaryInfo.CharacterCount;
+            }
+            catch (Exception ex)
+            {
+                throw new InstallerException("Invalid transform summary info", ex);
+            }
+        }
+
+        /// <summary>
+        /// Gets the filename of the transform.
+        /// </summary>
+        public string Name
+        {
+            get { return this.name; }
+        }
+        private string name;
+
+        /// <summary>
+        /// Gets the target product code of the transform.
+        /// </summary>
+        public string TargetProductCode
+        {
+            get { return this.targetProductCode; }
+        }
+        private string targetProductCode;
+
+        /// <summary>
+        /// Gets the target product version of the transform.
+        /// </summary>
+        public string TargetProductVersion
+        {
+            get { return this.targetProductVersion; }
+        }
+        private string targetProductVersion;
+
+        /// <summary>
+        /// Gets the upgrade product code of the transform.
+        /// </summary>
+        public string UpgradeProductCode
+        {
+            get { return this.upgradeProductCode; }
+        }
+        private string upgradeProductCode;
+
+        /// <summary>
+        /// Gets the upgrade product version of the transform.
+        /// </summary>
+        public string UpgradeProductVersion
+        {
+            get { return this.upgradeProductVersion; }
+        }
+        private string upgradeProductVersion;
+
+        /// <summary>
+        /// Gets the upgrade code of the transform.
+        /// </summary>
+        public string UpgradeCode
+        {
+            get { return this.upgradeCode; }
+        }
+        private string upgradeCode;
+
+        /// <summary>
+        /// Gets the target platform of the transform.
+        /// </summary>
+        public string TargetPlatform
+        {
+            get { return this.targetPlatform; }
+        }
+        private string targetPlatform;
+
+        /// <summary>
+        /// Gets the target language of the transform, or 0 if the transform is language-neutral.
+        /// </summary>
+        public int TargetLanguage
+        {
+            get { return this.targetLanguage; }
+        }
+        private int targetLanguage;
+
+        /// <summary>
+        /// Gets the validation flags specified when the transform was generated.
+        /// </summary>
+        public TransformValidations Validations
+        {
+            get { return this.validateFlags; }
+        }
+        private TransformValidations validateFlags;
+
+        /// <summary>
+        /// Returns the name of the transform.
+        /// </summary>
+        public override string ToString()
+        {
+            return (this.Name != null ? this.Name : "MST");
+        }
+    }
+}