Delete 'Trust Level="Medium"' element for package

--HG--
branch : dev

src/Tools/MSBuild.Orchard.Tasks/MSBuild.Orchard.Tasks.csproj

@@ -66,6 +66,7 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="XmlDelete.cs" />
     <Compile Include="ValidateExtensionProjectFiles.cs" />
     <Compile Include="FileUpdateLines.cs" />
     <Compile Include="FilterModuleBinaries.cs" />

src/Tools/MSBuild.Orchard.Tasks/XmlDelete.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Text;
+using System.Xml;
+using System.Xml.XPath;
+using Microsoft.Build.Framework;
+using Microsoft.Build.Utilities;
+
+namespace MSBuild.Orchard.Tasks {
+    public class XmlDelete : Task {
+
+        public string Namespace { get; set; }
+        public string Prefix { get; set; }
+        [Required]
+        public string XmlFileName { get; set; }
+        [Required]
+        public string XPath { get; set; }
+
+        public override bool Execute() {
+            try {
+                var document = new XmlDocument();
+                document.Load(this.XmlFileName);
+
+                var navigator = document.CreateNavigator();
+                var nsResolver = new XmlNamespaceManager(navigator.NameTable);
+
+                if (!string.IsNullOrEmpty(this.Prefix) && !string.IsNullOrEmpty(this.Namespace)) {
+                    nsResolver.AddNamespace(this.Prefix, this.Namespace);
+                }
+
+                var expr = XPathExpression.Compile(this.XPath, nsResolver);
+
+                var iterator = navigator.Select(expr);
+                while (iterator.MoveNext()) {
+                    iterator.Current.DeleteSelf();
+                }
+
+                using (var writer = new XmlTextWriter(this.XmlFileName, Encoding.UTF8)) {
+                    writer.Formatting = Formatting.Indented;
+                    document.Save(writer);
+                    writer.Close();
+                }
+            }
+            catch (Exception exception) {
+                base.Log.LogErrorFromException(exception);
+                return false;
+            }
+            base.Log.LogMessage("Updated file '{0}'", new object[] { this.XmlFileName });
+            return true;
+        }
+    }
+}
+