Issue #4433 has been updated by Aaron Grewell.

    site.pp:
    $network_interfaces = ymllookup("network_interfaces")
    define create_net_interfaces () { }
    create_net_interfaces { $network_interfaces: }
    Good YAML:
    network_interfaces:
    -  interface: "bond0"
    slaves: "eth0,eth1"
    Bad YAML:
    network_interfaces:
    -  interface: "bond0"
    slaves: "eth0,eth1"
    test5: "5test5"
    Error:
    err: Could not retrieve catalog from remote server: Could not intern from 
pson: Could not convert from pson: Could not find relationship target 
"Network::Create_net_interfaces[test55test5interfacebond0slaveseth0,eth1]"
    
----------------------------------------
Feature #4433: Add hash support to extlookup
https://projects.puppetlabs.com/issues/4433

Author: R.I. Pienaar
Status: Needs Decision
Priority: Normal
Assignee: Nigel Kersten
Category: functions
Target version: 2.7.x
Affected Puppet version: 2.6.0
Keywords: 
Branch: http://github.com/ripienaar/puppet/tree/extlookup_hash_support


I've added hash support to extlookup.  Really it's time to add yaml support but 
thats a whole different story.

CSV files can now have:

<pre>
test,key=val
another,key=val,foo=bar
</pre>

And it will return hashesh:

<pre>
{"key" => "val"}
{"key" => "val", "foo" => "bar"}
</pre>

In the event that not all values have a = in them it will just behave as old 
and return arrays.

My concern here is that we have a small case of breaking backward compatibility 
should someone already have key=val style values.  We should make this clear in 
the release notes.



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