1 files changed, 91 insertions, 0 deletions

diff --git a/src/tools/WixToolset.HeatTasks/RefreshGeneratedFile.cs b/src/tools/WixToolset.HeatTasks/RefreshGeneratedFile.cs
new file mode 100644
index 00000000..1e43cc1f
--- /dev/null
+++ b/src/tools/WixToolset.HeatTasks/RefreshGeneratedFile.cs
@@ -0,0 +1,91 @@
+// 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.HeatTasks
+{
+    using System;
+    using System.Collections;
+    using System.Globalization;
+    using System.IO;
+    using System.Xml;
+    using Microsoft.Build.Framework;
+
+    /// <summary>
+    /// This task refreshes the generated file that contains ComponentGroupRefs
+    /// to harvested output.
+    /// </summary>
+    public class RefreshGeneratedFile : RefreshTask
+    {
+        /// <summary>
+        /// Gets a complete list of external cabs referenced by the given installer database file.
+        /// </summary>
+        /// <returns>True upon completion of the task execution.</returns>
+        public override bool Execute()
+        {
+            var componentGroupRefs = new ArrayList();
+
+            for (var i = 0; i < this.ProjectReferencePaths.Length; i++)
+            {
+                var item = this.ProjectReferencePaths[i];
+
+                if (!String.IsNullOrEmpty(item.GetMetadata(DoNotHarvest)))
+                {
+                    continue;
+                }
+
+                var projectPath = item.GetMetadata("MSBuildSourceProjectFile");
+                var projectName = Path.GetFileNameWithoutExtension(projectPath);
+                var referenceName = GetIdentifierFromName(GetMetadataOrDefault(item, "Name", projectName));
+
+                var pogs = item.GetMetadata("RefProjectOutputGroups").Split(';');
+                foreach (var pog in pogs)
+                {
+                    if (!String.IsNullOrEmpty(pog))
+                    {
+                        componentGroupRefs.Add(String.Format(CultureInfo.InvariantCulture, "{0}.{1}", referenceName, pog));
+                    }
+                }
+            }
+
+            var doc = new XmlDocument();
+
+            var head = doc.CreateProcessingInstruction("xml", "version='1.0' encoding='UTF-8'");
+            doc.AppendChild(head);
+
+            var rootElement = doc.CreateElement("Wix");
+            rootElement.SetAttribute("xmlns", "http://wixtoolset.org/schemas/v4/wxs");
+            doc.AppendChild(rootElement);
+
+            var fragment = doc.CreateElement("Fragment");
+            rootElement.AppendChild(fragment);
+
+            var componentGroup = doc.CreateElement("ComponentGroup");
+            componentGroup.SetAttribute("Id", "Product.Generated");
+            fragment.AppendChild(componentGroup);
+
+            foreach (string componentGroupRef in componentGroupRefs)
+            {
+                var componentGroupRefElement = doc.CreateElement("ComponentGroupRef");
+                componentGroupRefElement.SetAttribute("Id", componentGroupRef);
+                componentGroup.AppendChild(componentGroupRefElement);
+            }
+
+            foreach (var item in this.GeneratedFiles)
+            {
+                var fullPath = item.GetMetadata("FullPath");
+
+                componentGroup.SetAttribute("Id", Path.GetFileNameWithoutExtension(fullPath));
+                try
+                {
+                    doc.Save(fullPath);
+                }
+                catch (Exception e)
+                {
+                    // e.Message will be something like: "Access to the path 'fullPath' is denied."
+                    this.Log.LogMessage(MessageImportance.High, "Unable to save generated file to '{0}'. {1}", fullPath, e.Message);
+                }
+            }
+
+            return true;
+        }
+    }
+}