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Handling optional outputs

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    Jason Cerrato

    Hi Matan,

     

    At this time, Cromwell doesn't support option file output in a task. This has been on the feature request list for some time now (see: https://github.com/openwdl/wdl/issues/20).

    However, this change is slated for the WDL v2.0 release (see: https://github.com/openwdl/wdl/pull/310).

    For now, you will need to use the workaround as you described it—creating an empty dummy file. If you have any questions, please let us know.

     

    Kind regards,

    Jason

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