supply a list via command line parameters

[seanrjohnson]

I would like to do something like this:
nextflow main.nf --foo param1 param2 param3

which would have the effect:
params.foo = ["param1", "param2", "param3"]

Is there a way to do that? I don't want to use wildcards, because they might not be files, or if they are files, they might not be named in a regular pattern.

Thanks

[jorgeaguileraseqera]

As a workaround, you can pass the foo argument as a String with commas and create a new params fooList splitting it.

nextflow main.nf --foo param1,param2,param3

main.nf :

params.foolist = params.foo?.split(',') as List

[seanrjohnson]

Thanks. That's a reasonable solution.