Support to output the type definitions anywhere else in the filesystem

.gitignore

@@ -9,3 +9,5 @@ _ReSharper.T4TS.Example
 T4TS.Build/_ReSharper.T4TS.Build
 !buid/T4TS.Attributes.dll
 packages/
+build/T4TS.d.ts
+build/test.d.ts

T4TS.Build.Builder/Properties/Resources.resx

@@ -130,8 +130,23 @@
 <#@ import namespace="EnvDTE" #>
 <#@ import namespace="Microsoft.VisualStudio.Shell.Interop" #>
 <#@ import namespace="Microsoft.VisualStudio.TextTemplating" #>
+<#@ import namespace="System.IO" #>
 <#@ Include File="T4TS.tt.settings.t4" #><#= 
-    OutputFormatter.GetOutput(GetDataToRender(), GetSettings()) #><#+ 
+	ProduceOutput()
+#><#+ 
+
+string ProduceOutput()
+{
+    var settings = GetSettings();
+    var output =  OutputFormatter.GetOutput(GetDataToRender(), settings);
+
+    if (!string.IsNullOrWhiteSpace(settings.OutputFile))
+    {
+        File.WriteAllText(Path.Combine(Path.GetDirectoryName(this.Host.TemplateFile), settings.OutputFile), output); 
+    }
+
+    return output;
+}
 
 Settings settings = null;
 Settings GetSettings()
@@ -178,8 +193,7 @@ Project GetProjectContainingT4File(DTE dte) {
     projectItem.Document.Saved = false;
 
     return projectItem.ContainingProject;
-}
-</value>
+}</value>
     <comment>The text to place in the beginning of T4TS.tt, before all code definitions.</comment>
   </data>
   <data name="TemplateSettings" xml:space="preserve">
@@ -222,7 +236,12 @@ readonly Dictionary&lt;string, object&gt; SettingsValues = new Dictionary&lt;str
 
     // The default value for DateTime type translation.
     // Type: bool?, defaults to false if not specified.
-    { "UseNativeDates", null }
+    { "UseNativeDates", null },
+
+
+    // If specified the relative path to an extra output file that doesn't need to be in your project 
+    // Type: string, defaults to "" if not specified
+    { "OutputFile", "" }
 };
 #&gt;</value>
     <comment>The contents of the generated template settings file T4TS.tt.settings.t4</comment>

T4TS/Settings.cs

@@ -38,6 +38,11 @@ public class Settings
         /// </summary>
         public bool UseNativeDates { get; set; }
 
+        /// <summary>
+        /// Allows to produce an extra output in the desired location relative to the project folder
+        /// </summary>
+        public string OutputFile { get; set; }
+
         public static Settings Parse(Dictionary<string,object> settingsValues)
         {
             // Read settings from T4TS.tt.settings.tt
@@ -48,7 +53,8 @@ public static Settings Parse(Dictionary<string,object> settingsValues)
                 DefaultCamelCaseMemberNames = ParseSettingNullableType(settingsValues, "DefaultCamelCaseMemberNames", false),
                 DefaultInterfaceNamePrefix = ParseSettingReferenceType(settingsValues, "DefaultInterfaceNamePrefix", s => s as string, string.Empty),
                 CompatibilityVersion = ParseSettingReferenceType(settingsValues, "CompatibilityVersion", v => v as Version, new Version(0, 9, 1, 1)),
-                UseNativeDates = ParseSettingNullableType(settingsValues, "UseNativeDates", false)
+                UseNativeDates = ParseSettingNullableType(settingsValues, "UseNativeDates", false),
+                OutputFile = ParseSettingReferenceType(settingsValues, "OutputFile", s => s as string, string.Empty)
             };
         }