Hi Eric,
(code below)
Try the "depends with if/unless" pattern.
Note the "if" and "unless" parameters on the do.true and do.false targets.
"condition" sets a variable depending on something - in this case where a file
exists or not.
The "top" level target does nothing except make sure other things happen in
order.
You might call that pattern "empty target orders actions".
Rob
---------
File check.xml:
<?xml version="1.0" encoding="utf-8"?>
<project name="Build rules for documentation sets" default="top">
<target name="top" description="Does the given file exist?" depends="exists,
do.true, do.false"/>
<target name="exists"
description="Check if a file exists">
<condition property="file.exists">
<available file="${file.name}"/>
</condition>
</target>
<target name="do.true" if="file.exists">
<echo>yay! it's true!</echo>
</target>
<target name="do.false" unless="file.exists">
<echo>Darn! Try again!</echo>
</target>
</project>
---------
Output of tests:
C:\depends-if>ant -f check.xml -Dfile.nam
=check.xml
Buildfile: C:\Documents and Settings\rechlin\My
Documents\test\TEST-ant\depends-if\check.xml
exists:
do.true:
[echo] yay! it's true!
do.false:
top:
BUILD SUCCESSFUL
Total time: 0 seconds
C:\depends-if>ant -f check.xml -Dfile.nam
=check.xmlOFF
Buildfile: C:\Documents and Settings\rechlin\My
Documents\test\TEST-ant\depends-if\check.xml
exists:
do.true:
do.false:
[echo] Darn! Try again!
top:
BUILD SUCCESSFUL
Total time: 0 seconds
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