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https://issues.apache.org/jira/browse/NUTCH-2974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17677428#comment-17677428
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Sebastian Nagel commented on NUTCH-2974:
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Ok, after a closer look: Ant's [copy
task|https://ant.apache.org/manual/Tasks/copy.html] would overwrite already
existing configuration files (eventually modified) if the template file is
newer. This may happen if the template was updated by a commit or also by
switching between branches, etc. Touching the templates to a date back in time
ensures that no configuration files are overwritten.
> Ant build fails with "Unparseable date" on certain platforms
> ------------------------------------------------------------
>
> Key: NUTCH-2974
> URL: https://issues.apache.org/jira/browse/NUTCH-2974
> Project: Nutch
> Issue Type: Bug
> Components: build
> Affects Versions: 1.19
> Reporter: Sebastian Nagel
> Priority: Major
> Fix For: 1.20
>
>
> When touching the configuration templates the ant build fails on certain
> platforms, see NUTCH-2512 and recently by [Kamil Mroczek on the users
> list|https://lists.apache.org/thread/dc36ofc6kvvx3fxlqbnzqdcp73yjcj8m],
> including a fix.
> However, we should also consider removing the "touch" action if it's not
> clear what the purpose of it is - it's there since the initial import of the
> Nutch source code to the Apache repository. Could be obsolete now.
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