I would like to read an environment variable on a Windows machine, for
example SystemRoot.
Since the environment variable retrieval in Ant is case-sensitive, I cannot
be sure that
<property environment="env" />
<property name="SystemRoot" value="${env.SystemRoot}" />
will always return a value. I, therefore, would like to have a default
value, if no value is available.
In Ant1.4.1 I am using the following code to accomplish this:
<?xml version="1.0"?>
<project name="test_env" default="all" basedir=".">
<target name="all">
<property environment="env" />
<property name="tmp.SystemRoot" value="${env.SystemRoot}" />
<condition property="SystemRoot" value="C:\WINNT">
<and>
<equals arg1="${tmp.SystemRoot}"
arg2="$${env.SystemRoot}"/>
</and>
</condition>
<property name="SystemRoot" value="${tmp.SystemRoot}" />
<echo message="SystemRoot: ${SystemRoot}" />
</target>
</project>
Is the condition statement going to work the same way in future versions of
Ant (1.5+)?
Christoph
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