Issue #15329 has been updated by Henrik Lindberg.
Could also do something like
<pre>
file { 'foo': mode => $foo unless undef, owner => 'root' }
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Bug #15329: Puppet lacks a proper "undefined" value
https://projects.puppetlabs.com/issues/15329#change-74522
Author: Pieter van de Bruggen
Status: Accepted
Priority: Normal
Assignee: Henrik Lindberg
Category:
Target version:
Affected Puppet version:
Keywords: backlog
Branch:
$y = undef
notice($y == "") # true
notice($x == $y) # true
notice($x == "") # true
Recent changes in the Puppet DSL made equality commutative (good!), but in
doing so broke work-arounds for actually testing for the difference between an
undefined and "empty" value. The most logical fix would be to equate Puppet's
`undef` with Ruby's `nil`.
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