Issue #6907 has been updated by Stefan Schulte.

I have some problems with this patch. If you run in noop mode this raises the 
following error:
<pre>
err: /Stage[main]//Foo[my_foo_resource]: Could not evaluate: Provider bar is 
not functional on this host at /tmp/test/test.pp:4
</pre>

While I can live with that (I would more like a warning like »skip resource: no 
suitable provider found«) I think using a provider in a puppetrun eventhough 
prefetching did not work (because the provider was not yet present during 
prefetching phase) can cause serious errors because the provider will most 
likely assume that there are currently no instances present.

<pre>
debug: Prefetching bar resources for foo
err: Could not prefetch foo provider 'bar': Command some_binary is missing
info: Applying configuration version '1320775712'
notice: /Stage[main]//File[/tmp/foobinary]/ensure: created
debug: /Stage[main]//File[/tmp/foobinary]: The container /tmp/foobinary will 
propagate my refresh event
debug: /tmp/foobinary: The container Class[Main] will propagate my refresh event
debug: Puppet::Type::Foo::ProviderBar: Executing '/tmp/foobinary '
notice: /Stage[main]//Foo[my_foo_resource]/ensure: created
</pre>

So I still prefer the "skip all resources with no suitable provider" approach.
----------------------------------------
Feature #6907: Ensure providers can be used in the same puppet run that their 
prerequisites are delivered in
https://projects.puppetlabs.com/issues/6907

Author: Nigel Kersten
Status: In Topic Branch Pending Review
Priority: Urgent
Assignee: Jason McKerr
Category: provider
Target version: 2.7.x
Affected Puppet version: 
Keywords: 
Branch: 


This is possibly more accurately described as a collection of bug fixes, as 
we've aimed to fix this several times, however I'm characterizing this as a 
feature, and we're going to associate related bugs with it.

Essentially we want to be able to use a provider in the same run that it's 
prerequisites (like :commands and paths) are delivered in. 

You should not have to run puppet twice to use a provider.

We're aiming this at 2.6.x initially, but if it turns out that we need 
significant plumbing work to make this happen, we are re-targeting at Statler.


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