On Mar 19, 2009, at 5:21 AM, Bruce Richardson wrote:
>
> On Thu, Mar 19, 2009 at 10:12:39AM +0000, Bruce Richardson wrote:
>> This isn't an idle line of thought, by the way. There's obviously
>> a lot
>> of interest in class/module dependencies, which are not easy to
>> create
>> or test. Puppet would benefit from having a test for whether or
>> not a
>> specific class has been included and, I think, for whether or not a
>> specific class *or one that inherits from it* has been included.
>
> It's nice to find, though, that "require => Class[$classname]" will
> create a dependency on $classname *or any class that inherits from
> it*.
> I don't think that's documented anywhere - hope I can remember my
> username/password on the wiki.
The whole inheritance tree is connected on the graph, so requiring the
top of the tree implicitly requires everythimg under it.
Basically, relationships just make a new edge in the DAG (directed
acyclic graph), and the edges are what determine the sorting order.
--
Beware of all enterprises that require new clothes.
-- Henry David Thoreau
---------------------------------------------------------------------
Luke Kanies | http://reductivelabs.com | http://madstop.com
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