Visual Studio's T4 templates offer the Output Directive which allows me to specify the file extension of the generated file as follows:
<#@ output extension=".cs" #>
I would like to access that file extension from the code within the T4 template so that I can get the entire filename of the file that is generated. I can get the name of the T4 template itself via Host property as follows:
string templateName = Path.GetFileName(Host.TemplateFile);
But I don't see how to get the file extension or entire name of the T4 output file ("MyTemplate.cs" in that case if the T4 is named "MyTemplate.tt"). I can't find any property on the Host that seems helpful here. Does anyone know?