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Posted to dev@pig.apache.org by "Dmitriy V. Ryaboy (JIRA)" <ji...@apache.org> on 2012/09/03 00:55:07 UTC

[jira] [Commented] (PIG-2362) Rework Ant build.xml to use macrodef instead of antcall

    [ https://issues.apache.org/jira/browse/PIG-2362?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13447051#comment-13447051 ] 

Dmitriy V. Ryaboy commented on PIG-2362:
----------------------------------------

Gianmarco, since we have made no progress on mavenizing Pig.. mind taking another crack at this? Seems like we were almost there.
                
> 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: 0.11
>
>         Attachments: PIG-2362.1.patch, PIG-2362.2.patch, PIG-2362.3.patch, PIG-2362.4.patch, PIG-2362.5.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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