Forgive me if I'm missing the obvious, but:
How do I detect what OS I am running under in Ant? Yes, I know about the
property "os.name", but it doesn't seem like Ant allows you to test the
*content* of this (or any other) property for purposes of branching
behavior--only whether or not the property is set.
I've been trying contortions like:
<touch file=".build_OS_is_${os.name}"/>
<available file=".build_OS_is_Windows NT"
property="build.os.is.NT"/>
<available file=".build_OS_is_SunOS"
property="build.os.is.SunOS"/>
But this doesn't work because Available checking is obviously being done
before the touch, must be a "special" task from Ant's runtime point of view,
perhaps because it wants to know all property values before executing tasks.
Of course, the OS-indicating file is there the *next* time you run Ant, but
this is so ugly I figured I'd just punt and ask. I know that "exec" has an
"os" attribute but others don't. I want to do the seemingly-obvious:
<target name="OSDependentTarget" if="My_OS_is_UNIX">
</target>
I know I could force the user to specify their OS in a property file, but
Ant's Java runtime already knows. . .I just am not sure how to branch based
on that knowledge.
--John Hempe
