Dear all,

I am currently developing a tool that outputs an arbitrary number of files,

using collections as described in the excellent tutorial by Steve Cassidy

at https://web.science.mq.edu.au/~cassidy/2015/10/21/galaxy-tool-generating-datasets/.

I am having a hard time figuring out how to make galaxy aware of the

format of the individual files in the collection, as the two relevant

admin help pages I found do not mention this (https://wiki.galaxyproject.org/Admin/Tools/ToolConfigSyntax

and https://wiki.galaxyproject.org/Admin/Tools/Multiple%20Output%20Files).

I tried adding a format attribute to the collection tag in the tool

description, similarly to ``normal'' single data outputs:

<outputs>

    <collection type="list" format="foo">

        <discover_datasets pattern="(?P&lt;name&gt;.*)" directory="bar" />

    </collection>

</outputs>

... but to no avail. I would be grateful for any helpful pointers! :)

Best,

Emanuele Lapponi