2009/8/26 Matthias Saou
<th...@spam.spam.spam.spam.spam.spam.spam.egg.and.spam.freshrpms.net>:
>
> Hi,
>
> As often with puppet, I'm trying to do something I think is "simple",
> yet I'm hitting a brick wall.
>
> What I want to do is have a client send back a list of members of a
> system group so that the server can create some template-based
> configuration files for a specific daemon, one per member.
>
> My problem here is that facter doesn't seem to be able to return
> anything other than strings. Is that the case? Because it would be
> really easier for me to have it return an array of the members :
Correct currently facter is essentially a flat key value map. This is
something that is on the roadmap to have richer data structures for
2.0, which will begin work after 1.6 ships.
> Then, my next problem is that once I get the comma separated string on
> the server, I don't see how to convert that into an array I could
> easily use inside classes and definitions.
>
> ...Help? :-)
0.25 puppet has split as a function in the puppet language:
Split a string variable into an array using the specified split regexp.
Usage::
$string = 'v1.v2:v3.v4'
$array_var1 = split($string, ':')
$array_var2 = split($string, '[.]')
$array_var3 = split($string, '[.:]')
$array_var1 now holds the result ['v1.v2', 'v3.v4'],
while $array_var2 holds ['v1', 'v2:v3', 'v4'], and
$array_var3 holds ['v1', 'v2', 'v3', 'v4'].
Note that in the second example, we split on a string that contains
a regexp meta-character (.), and that needs protection. A simple
way to do that for a single character is to enclose it in square
brackets.")
Paul
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