Puppet users - May 2012 - Custom Fact not in facts.yml during Puppet Runs

I wrote a custom fact called "xen_total_memory" that pulls the xen
memory from xm info:

require ''facter/util/memory''

begin
  xen_total_memory = `xm
info`.grep(/total_memory/).to_s.split(/:/)[1].lstrip.chomp
rescue
  xen_total_memory = ""
end

Facter.add(''xen_total_memory'') do
  confine :kernel => [ :linux, :"gnu/kfreebsd" ]
  setcode do
    xen_total_memory
  end
end

Then I wrote another custom fact, similar to this one, except this time it looks
for free memory:

require ''facter/util/memory''

begin
  xen_free_memory = `xm
info`.grep(/free_memory/).to_s.split(/:/)[1].lstrip.chomp
rescue
  xen_free_memory = ""
end

Facter.add(''xen_free_memory'') do
  confine :kernel => [ :linux, :"gnu/kfreebsd" ]
  setcode do
    xen_free_memory
  end
end

For some reason, I couldn''t see in mco with "moo facts
xen_free_memory". I took another look and found that I messed up on the
file extension, so I corrected it. So at this point, they are mostly the same:

LAPDTOP:facter rilindo$ diff xen_free_memory.rb xen_total_memory.rb 
4c4
<   xen_free_memory = `xm
info`.grep(/free_memory/).to_s.split(/:/)[1].lstrip.chomp
---
>   xen_total_memory = `xm
info`.grep(/total_memory/).to_s.split(/:/)[1].lstrip.chomp
6c6
<   xen_free_memory = ""
---
>   xen_total_memory = ""
9c9
< Facter.add(''xen_free_memory'') do
---
> Facter.add(''xen_total_memory'') do
12c12
<     xen_free_memory
---
>     xen_total_memory
Yet, the problem persists. 

Curious thing is that I can confirm that I can see the fact being loaded by
puppet and if you run it manually, it does populate the facts.yaml file. The
agent is just not  inserting it during its runs.

The other custom facts are being loaded, so I am stumped.

 - Rilindo

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