If you ever wonder how to answer prompts of commands you execute through the Phing
exec task, here is the solution. It's easy but since I didn't find it explicitly documented anywhere I thought I'd write it down in public:
<target name="interact"> <exec command="somecommand" passthru="true" /> </target>
The solution is to set
passthru="true". Then the prompts will be displayed by phing and you can answer them as if you were calling the commands directly in the shell. Works on Linux and Windows.