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https://issues.apache.org/jira/browse/PIG-2362?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gianmarco De Francisci Morales updated PIG-2362:
------------------------------------------------
Status: Open (was: Patch Available)
> Rework Ant build.xml to use macrodef instead of antcall
> -------------------------------------------------------
>
> Key: PIG-2362
> URL: https://issues.apache.org/jira/browse/PIG-2362
> Project: Pig
> Issue Type: Improvement
> Reporter: Gianmarco De Francisci Morales
> Assignee: Gianmarco De Francisci Morales
> Priority: Minor
> Fix For: 0.12
>
> Attachments: PIG-2362.1.patch, PIG-2362.2.patch, PIG-2362.3.patch,
> PIG-2362.4.patch, PIG-2362.5.patch, PIG-2362.6.patch, PIG-2362.7.patch,
> PIG-2362.8.patch
>
>
> Antcall is evil: http://www.build-doctor.com/2008/03/13/antcall-is-evil/
> We'd better use macrodef and let Ant build a clean dependency graph.
> http://ant.apache.org/manual/Tasks/macrodef.html
> Right now we do like this:
> {code}
> <target name="buildAllJars">
> <antcall target="buildJar">
> <param name="build.dir" value="jar-A"/>
> </antcall>
> <antcall target="buildJar">
> <param name="build.dir" value="jar-B"/>
> </antcall>
> <antcall target="buildJar">
> <param name="build.dir" value="jar-C"/>
> </antcall>
> </target>
> <target name="buildJar">
> <jar destfile="target/${build.dir}.jar" basedir="${build.dir}/classfiles"/>
> </target>
> {code}
> But it would be better if we did like this:
> {code}
> <target name="buildAllJars">
> <buildJar build.dir="jar-A"/>
> <buildJar build.dir="jar-B"/>
> <buildJar build.dir="jar-C"/>
> </target>
> <macrodef name="buildJar">
> <attribute name="build.dir"/>
> <jar destfile="target/${build.dir}.jar" basedir="${build.dir}/classfiles"/>
> </macrodef>
> {code}
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