DO NOT REPLY [Bug 23510] New: - provide a "append_unique" attribute for echo task

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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=23510

provide a "append_unique" attribute for echo task

           Summary: provide a "append_unique" attribute for echo task
           Product: Ant
           Version: 1.5.3
          Platform: Other
               URL: http://ant.apache.org/manual/CoreTasks/echo.html
        OS/Version: Other
            Status: NEW
          Severity: Enhancement
          Priority: Other
         Component: Core tasks
        AssignedTo: dev@ant.apache.org
        ReportedBy: hauser@acm.org


My build.xml creates a (txt or ftl) file containing a record per line.

Now, each ant run re-creates a possibly slightly changed set of records.

When using shell scripts, I can use "uniq" to solve the problem of getting rid
of duplicate lines (although I first have to "sort" which I rather would not).

==> it would be great if the echo task could do that too!

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