On Tue, 20 Dec 2005, Kamal Bhatt <[EMAIL PROTECTED]> wrote:
> I used whenempty="fail" and instead of failure I get a stupid
> message telling me that a jar file is never empty (because of the
> manifest file).
I wouldn't call it stupid ...
> Is there a way of making it work the way I expect it to work (ie
> failing when there are no files in the file set) instead of this
> rather unhelpful way?
Ant's svn contains a version of jar that can be made to not build the
jar at all - or fail, depending on an attribute. So Ant 1.7 will work
as you'd like it to do.
This doesn't help you now. The easiest workaround probably is to use
the <zip> task instead of the <jar> task and add the MANIFEST.MF in a
second step. Something like
<tempfile property="zip" suffix=".zip"/>
<zip destfile="${zip}" whenempty="fail" encoding="UTF8">
...
</zip>
<jar destfile="your-target-archive">
<zipfileset src="${zip}"/>
</jar>
<delete file="${zip}"/>
Stefan
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