36 lines
944 B
Ruby
36 lines
944 B
Ruby
#
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# fact.rb
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#
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module Puppet::Parser::Functions
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newfunction(:fact, :type => :rvalue, :doc => <<-EOS
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EOS
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) do |arguments|
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raise(Puppet::ParseError, "fact(): Wrong number of arguments " +
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"given (#{arguments.size} for 1)") if arguments.size < 1
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fact = arguments[0]
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if not fact.is_a?(String)
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raise(Puppet::ParseError, 'fact(): Requires fact name to be a string')
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end
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raise(Puppet::ParseError, 'fact(): You must provide ' +
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'fact name') if fact.empty?
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result = lookupvar(fact) # Get the value of interest from Facter ...
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#
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# Now this is a funny one ... Puppet does not have a concept of
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# returning neither undef nor nil back for use within the Puppet DSL
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# and empty string is as closest to actual undef as you we can get
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# at this point in time ...
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#
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result = (result and not result.empty?) ? result : ''
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return result
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end
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end
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# vim: set ts=2 sw=2 et :
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