Question

I am running Ant to exec another process. This other process has problems with some environment variables that are present. I want these environment variables to be undefined when I exec the other process.

Of course I can undefine the environment variable prior to running Ant. However I am interested in undefining the variable within Ant prior to execing the other process.

So I have at the time of calling Ant an environment with:

SOME_VAR=a-value

And I have in my build.xml:

..<exec exacutable="program.exe>...

And my program.exe chokes on the fact that SOME_VAR is defined.

Answer 1

The exec task has a newenvironment attribute which when set to true clears the current environment. Use together with nested env elements.