How to get a project's directory from within T4?

Question

I've been messing around with T4 support in Mono and noticed a very cumbersome thing. The current directory when running T4 templates is the home directory. I need to be able to read a few files from the current project's directory but I'm at a loss for how to.

<#@ template language="C#v3.5" #>
<#@ output extension="txt" #>

<#=System.IO.Directory.GetCurrentDirectory() #>

yields

/home/earlz

where I want it to yield something like

/home/earlz/MyProject

How do I overcome this problem?

Also, I tried the hostspecific and Host.ResolvePath, but I got a NotImplementedException

Answer 1

Ok, think I've figured it out. You just have to actually resolve paths yourself. To get the directory of the template file(which is good enough for me) just use this:

<#= System.IO.Path.GetDirectoryName(Host.TemplateFile) #>

Answer 2

I fixed ResolvePath after your older question, along with a ton of other improvements. The fix should be in MonoDevelop 2.6, though you could try building from master.