parameters: xtriggers

[oliver-sanders]

I recently encountered a case where parametrised xtriggers would have been advantageous.

[cylc]
    [[parameters]]
        x = 1..3

[scheduling]
    [[xtriggers]]
        trig<x> = myfcn(point=%(point)s, %(param_x)02d)
    [[dependencies]]
        graph = """
            @trig<x> => a<x>
        """

Interestingly the parameterised xtriggers are expanded in the graph, just not in the [xtriggers] section.

Pull requests welcome!

[hjoliver]

Yeah, this has been suggested before:

• parameterization: make parameters avaliable to other suite.rc sections #2453 (comment)
• parameterization: make parameters avaliable to other suite.rc sections #2453 (comment)

(As per the last comment, I think we should extend this issue - or create another - for parameterizing custom messages/outputs too ... both outputs and xtriggers are a natural extension IMO).