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# Test whether a given class or definition is defined
require 'puppet/parser/functions'
Puppet::Parser::Functions.newfunction(:defined_with_params,
:type => :rvalue,
:doc => <<-'ENDOFDOC'
Takes a resource reference and an optional hash of attributes.
Returns true if a resource with the specified attributes has already been added
to the catalog, and false otherwise.
user { 'dan':
ensure => present,
}
if ! defined_with_params(User[dan], {'ensure' => 'present' }) {
user { 'dan': ensure => present, }
}
ENDOFDOC
) do |vals|
reference, params = vals
raise(ArgumentError, 'Must specify a reference') unless reference
if (! params) || params == ''
params = {}
end
ret = false
if resource = findresource(reference.to_s)
matches = params.collect do |key, value|
# eql? avoids bugs caused by monkeypatching in puppet
resource_is_undef = resource[key].eql?(:undef) || resource[key].nil?
value_is_undef = value.eql?(:undef) || value.nil?
(resource_is_undef && value_is_undef) || (resource[key] == value)
end
ret = params.empty? || !matches.include?(false)
end
Puppet.debug("Resource #{reference} was not determined to be defined")
ret
end
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