Advanced workflow tips/tricks FAQ / mini tutorial

[bernt-matthias]

Lets start with an idea collection that we may turn into FAQ list or mini tutorial:

• Run a tool based on the presence or absence of an optional input. See https://github.com/galaxyproject/galaxy/pull/17271#issuecomment-1946295790
• Conditional steps
• Map over a tool (input) that does not map over
• Updating subworkflows
• Best practices panel

[hexylena]

Would love to see this @bernt-matthias ! short tutorials are absolutely welcome, especially if you can provide a useful scenario where someone would want to do this

[hexylena]

Ah chasing down the comment https://github.com/galaxyproject/galaxy/pull/17271#issuecomment-1952074678 agreed @mvdbeek !! Would love to see more short tutorials in the form of "Are you in this situation? Example of situation, resolution via workflow", it'd really manage to expose this to a lot more folks!

[mvdbeek]

provide a useful scenario where someone would want to do this

this is near impossible if you also want to be concise, I don't think that should hold us back in creating a resource though for those people that know what they want to do ... which I think is what FAQs are for.

[hexylena]

That's fair, no, don't let it hold you back.

More just if you created the feature, or needed the feature for a specific scenario, you might already have such a scenario in your mind, and it'd help readers connect it to real-world use cases a bit better.

[simonbray]

See also https://github.com/galaxyproject/training-material/pull/3660

[hexylena]

cc @jennaj @Delphine-L, we had questions on conditionals in workflows in the intro training, people want to know how :)