Jerry Dennany's Occasional Clue

Is there no other way of achieving this, although your solution is nice, it seems odd that NAnt cannot cope with modifying environments??

If I could have found an easier way to do this in nAnt, I would have used it. If there is an easier way in 0.84, I'd like to know, myself.

So, for some reason, that's not working for me on 0.84.

Here's a simplified version that should be pretty straightforward:

<target name="updatepath">
<property name="build.appendpath" value="test"/>
<script language="C#">
<code><![CDATA[

public static void ScriptMain(Project project)
{
string x = project.Properties["sys.env.x"];
System.Console.WriteLine("x was: " + x);
System.Console.WriteLine("Changing to: " + project.Properties["build.appendpath"]);
SetEnvironmentVariable("x", project.Properties["build.appendpath"]);
System.Console.WriteLine("x is: " + x);
}


[ System.Runtime.InteropServices.DllImport( "kernel32") ]
public static extern bool SetEnvironmentVariable( string EnvironmentVariable, string EnvironmentValue );


]]></code>
</script>
<echo message="x=${sys.env.x}"/>
</target>

When you run this, the output is:
updatepath:

x was: 0
Changing to: test
x is: 0
[echo] x=0

BUILD SUCCEEDED

What'd I do wrong?

question came up on NAnt-Users about setting env vars using NAnt. This has been asked a few times before. Unfortunately the .Net environment class does not support writing env var values...