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https://issues.apache.org/jira/browse/LUCENE-3943?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hoss Man updated LUCENE-3943:
-----------------------------

    Description: 
In LUCENE-3930 we moved to resolving all external dependencies using 
ivy:retrieve.  This process places the dependencies into the lib/ folder of the 
respective modules which was ideal since it replicated the existing build 
process and limited the number of changes to be made to the build.

However it can lead to multiple jars for the same dependency in the lib folder 
when the dependency is upgraded, and just isn't the most efficient way to use 
Ivy.

Uwe pointed out that _when working from svn or in using src releases_ we can 
remove the ivy:retrieve calls and make use of ivy:cachepath and 
ivy:cachefileset to build our classpaths and packages respectively, which will 
go some way to addressing these limitations -- however we still need the build 
system capable of putting the actual jars into specific lib folders when 
assembling the binary artifacts

  was:
In LUCENE-3930 we moved to resolving all external dependencies using 
ivy:retrieve.  This process places the dependencies into the lib/ folder of the 
respective modules which was ideal since it replicated the existing build 
process and limited the number of changes to be made to the build.

However it can lead to multiple jars for the same dependency in the lib folder 
when the dependency is upgraded, and just isn't the most efficient way to use 
Ivy.

Uwe pointed out that we can remove the ivy:retrieve calls and make use of 
ivy:cachepath and ivy:cachefileset to build our classpaths and packages 
respectively, which will go some way to addressing these limitations


updating summary to note that this will really only help when working with svn 
checkouts and src releases -- we'll still need to actually copy jar files 
around when building the binary artifacts (which means we'll probably also 
still want something like clean-jar for use by the R.M.)
                
> Use ivy cachepath and cachefileset instead of ivy retrieve
> ----------------------------------------------------------
>
>                 Key: LUCENE-3943
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3943
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: general/build
>            Reporter: Chris Male
>
> In LUCENE-3930 we moved to resolving all external dependencies using 
> ivy:retrieve.  This process places the dependencies into the lib/ folder of 
> the respective modules which was ideal since it replicated the existing build 
> process and limited the number of changes to be made to the build.
> However it can lead to multiple jars for the same dependency in the lib 
> folder when the dependency is upgraded, and just isn't the most efficient way 
> to use Ivy.
> Uwe pointed out that _when working from svn or in using src releases_ we can 
> remove the ivy:retrieve calls and make use of ivy:cachepath and 
> ivy:cachefileset to build our classpaths and packages respectively, which 
> will go some way to addressing these limitations -- however we still need the 
> build system capable of putting the actual jars into specific lib folders 
> when assembling the binary artifacts

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