On 9/21/20 4:32 AM, Stefan Bodewig wrote:
On 2020-09-15, Dave Brosius wrote:
I have an ant task using ant 1.10.8, that includes use of the <jar>
task as such:
<jar destfile="${target.dir}/aspects.jar" *update="true"
**duplicate="preserve"*>
<zipfileset src="${target.dir}/pre_aspects.jar"
includes="**/*" />
<manifest>
...
</manifest>
</jar>
There are in fact file collsions between the two jars.
When i run this from linux, with the -d parameter, ant outputs the
correct list of files it is copying, ie, those files that don't
already exist in the target jar.
When i run this from windows, with the -d parameter, ant outputs a
much longer list of files it is copying, including files that are
being overwritten.
Are there any "\"s reported as part of the file names?
I didn't see anything like that
Is it possible that on windows, there is some problem with directory
separators, maybe / vs \ that is causing the jar task to think these
are new files. Or perhaps something else? Has anything like this been
reported?
None that I was aware of.
In your example bot aspects.jar and pre_aspects.jar are ZIPs and thus
should contain "/"s as separators anyway.
One more thing to look out for is timestamp granularity. On Linux Ant
assumes file timestamps are accurate up to the second on Windows it
assumes a granularity of two seconds. This may lead to files being
considered out-of-date on one but not the other. At the same time, ZIPs
only support a granularity of two seconds themselves. The roundup
attribute may make a difference if things are time and not file name
related.
Stefan
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In the end i just wrote my own custom ant task to do what jar was
supposed to do. What i noticed was that one of the jars had
1) no entries for the directories themselves
2) items out of alphabetical order.
Don't know if that confused the ant jar task or not, not sure why it
would be different between windows and linux tho.
-dave
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