Issue #7762 has been updated by Matthaus Owens.

Status changed from Merged - Pending Release to Closed

Merged at 
<https://github.com/puppetlabs/puppet/commit/fb36b5ab157261e0ee77e1293ea8f3abee4757b0>

Released in Puppet 3.0.0rc1
----------------------------------------
Feature #7762: Allow "unless" as replacement for "if !"
https://projects.puppetlabs.com/issues/7762#change-71917

Author: Randall Hansen
Status: Closed
Priority: Normal
Assignee: Jeff Weiss
Category: 
Target version: 3.0.0
Affected Puppet version: 
Keywords: 
Branch: https://github.com/puppetlabs/puppet/pull/424


This ticket proposes to implement "unless" as an optional equivalent to "if !".

In the DSL we sometimes need to write "if not", e.g.,

       if ! ($ensure in [ "present", "absent" ]) {
         fail("bluetooth ensure parameter must be absent or present")
       }

Some programming languages replace this with "unless".  Its use is always 
optional, but can make the logic easier to write and to read (since it's easy 
to miss the little !).



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