example work & logs directories needed?
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                 Key: SOLR-2586
                 URL: https://issues.apache.org/jira/browse/SOLR-2586
             Project: Solr
          Issue Type: Improvement
          Components: Build
            Reporter: David Smiley
            Priority: Minor


Firstly, what prompted this issue was me wanting to use a git solr mirror but 
finding that git's lack of empty-directory support made the "example" ant task 
fail. This task requires examples/work to be in place so that it can delete its 
contents. Fixing this was a simple matter of adding:
{code:xml}
<mkdir dir="${example}/work" /><!-- in case not there -->
{code}
Right before the delete task.

But then it occurred to me, why even have a "work" directory since Jetty will 
apparently use a temp directory instead. -- try for yourself (stdout snippet):
bq. 2011-06-11 00:51:26.177:INFO::Extract 
file:/SmileyDev/Search/lucene-solr/solr/example/webapps/solr.war to 
/var/folders/zo/zoQJvqc9E0076p0THiri+k+++TI/-Tmp-/Jetty_0_0_0_0_8983_solr.war__solr__k1kf17/webapp

On my Mac, this same directory was used for multiple runs, so somehow Jetty or 
the VM figures out how to reuse it.

Since this "example" setup isn't a *real* installation -- it's just for 
demonstration, arguably it should not contain what it doesn't need.  Likewise, 
perhaps the empty example/logs directory should be deleted. It's not used by 
default any way.


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