23 lines
814 B
Ruby
23 lines
814 B
Ruby
module Puppet::Parser::Functions
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newfunction(:lookup_hiera_hash, :arity => 2, :type => :rvalue,
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:doc => "Lookup a key->value from a Hiera hash") do |args|
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hash_name = args[0]
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key_name = args[1]
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unless hash_name.is_a?(String) and key_name.is_a?(String)
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raise Puppet::ParseError, "The hash name and the key name must be given as strings."
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end
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if defined? call_function
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hash = call_function('hiera', [hash_name])
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else
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hash = function_hiera([hash_name])
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end
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unless hash.is_a?(Hash)
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raise Puppet::ParseError, "The value Hiera returned for #{hash_name} is not a Hash."
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end
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unless hash.key?(key_name)
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raise Puppet::ParseError, "The Hiera hash #{hash_name} does not contain key #{key_name}."
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end
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return hash[key_name]
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end
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end
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