On Wed, Aug 22, 2012 at 8:49 AM, ZJE <countac...@gmail.com> wrote:
> I have a script in $FACTERLIB that queries proprietary vendor tools for RAID
> configuration. These tools are quite slow, so the top of my .rb file calls
> the program once and stores the output in a variable. Multiple Facter.add
> statements then populate the facts. I would like to bail on this custom fact
> script if it's being run on a VM or unsupported host. I don't think
> "confine" would work here since I have multiple Facter.add and I would
> ideally like to bail before it gets to any of them. If I try "exit," facter
> just exists and no other facts are collected. Looking at the code in
> facter/util/loader.rb, I could throw a ScriptError exception - but that
> seems hackish.
>
> Anyone have experience or suggestions for doing something similar? I've
> tried searching existing code with no luck.
You can surround the Facter.add calls with explicit checks like:
if Facter.value(:kernel) == "Darwin"
Facter::Util::Macosx.hardware_overview.each do |fact, value|
Facter.add("sp_#{fact}") do
confine :kernel => :darwin
setcode do
value.to_s
end
end
end
end
(Yes, that confine there is somewhat redundant...)
Are you really seeing a significant slowdown though if you don't do
this and simply have the confine call within each Facter.add ? If so,
we should work on that.
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