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https://issues.apache.org/jira/browse/HADOOP-12194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14616007#comment-14616007
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Ravi Prakash commented on HADOOP-12194:
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Hi Andrew! Thanks for the patch. Should we simply look at the modification
times of the protoc files and the generated files?
> Support for incremental generation in the protoc plugin
> -------------------------------------------------------
>
> Key: HADOOP-12194
> URL: https://issues.apache.org/jira/browse/HADOOP-12194
> Project: Hadoop Common
> Issue Type: Improvement
> Affects Versions: 2.0.6-alpha
> Reporter: Andrew Wang
> Assignee: Andrew Wang
> Attachments: hadoop-12194.001.patch
>
>
> The protoc maven plugin currently generates new Java classes every time,
> which means Maven always picks up changed files in the build. It would be
> better if the protoc plugin only generated new Java classes when the source
> protoc files change.
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