On Jun 16, 2007, at 9:26 PM, Q wrote: I am reworking the WAR and SSDD targets in a build.xml file and am trying to add some error checking. I can verify that individual files like web.xml and LICENSE exist, but I also want to check if all the required frameworks in my ant.frameworks.wo.wolocalroot file exist as jars in /Library/WebObjects/lib while building the war file (like xcode does).
I can create the file list I need to check easily enough, but I am not sure how to get ant to verify that a list of files exist, or even iterate over a list checking them individually. I would prefer to do this without having to add additional taskdef dependencies other than woproject.
Any suggestions?
-- Seeya...Q
Gold Coast, QLD, Australia Ph: +61 419 729 806
It is possible to do "if-then-else" style logic in ant. It is just extremely awkward. To tell the truth, every time I need to do it, I need to re-learn it. It is just very non-intuitive. You want to look very carefully at the documentation for the <condition> task, the <available> task and a few others. Maybe a third-party task handles it more nicely.
For example:
% cat build.xml <project name="questions"> <target name="one"> <available file="/System/Library/Frameworks/JavaFoundation.framework" property="FoundationFound" /> <fail unless="FoundationFound" message="Foundation does not exist!" /> </target>
<target name="two"> <available file="/System/Library/Frameworks/NSNothing.framework" property="NothingFound" /> <fail unless="NothingFound" message="Nothing does not exist, so something exists?" /> </target> </project> % % ant one Buildfile: build.xml
one:
BUILD SUCCESSFUL Total time: 0 seconds % % ant two Buildfile: build.xml
two:
BUILD FAILED /Users/ray/foo/build.xml:9: Nothing does not exist, so something exists?
Total time: 0 seconds % %
The words in the "unless" are the names of properties. One can, of course, set a property to equal the property name. One ends up expressing the "if-then-else" logic by setting properties and keying actions off of them.
Not exactly crystal clear, no? But it is possible. It just ends up looking weird.
- ray |