On 23/05/17 20:21, Dean Wilson wrote:
Hi,
I'm currently trying to write a Puppet 4, EPP, version of
https://forge.puppet.com/deanwilson/multitemplate but I'm having an
issue with the dispatch rules I'd like to use.
In order to support multiple template file names, and provide values
for the templates, I think I want something like this (but with a
better Pattern):
dispatch :template_data do
scope_param
repeated_param 'String', :templates
param 'Hash[Pattern[/^\w+$/], Any]', :parameters
end
But that's not allowed as repeated patterns have to be the last thing
(excluding blocks.) I know in modern rubies you can have a 'splat' in
the middle and unpack the first and last params so I was wondering if
it'd be considered for puppet function dispatch too.
We did consider adding that but rejected the idea. Mostly because the
varargs concept exists in most languages (as last param), but not
somewhere in the middle.
Why not simply switch the arguments around so you have the list of files
at the end of the list?
- henrik
I can currently get around this with a call like
multi_epp_template(['file', 'file2'], { }) but that extra bit of array
syntax feels unwieldy.
In general the puppet 4 function dispatch stuff has been quite nice to
work with, so congrats on that.
Glad you like it.
- henrik
Dean
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