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# Test whether a given class or definition is defined
require 'puppet/parser/functions'
Puppet::Parser::Functions.newfunction(:ensure_resource,
:type => :statement,
:doc => <<-'ENDOFDOC'
Takes a resource type, title, and a list of attributes that describe a
resource.
user { 'dan':
ensure => present,
}
This example only creates the resource if it does not already exist:
ensure_resource('user, 'dan', {'ensure' => 'present' })
If the resource already exists but does not match the specified parameters,
this function will attempt to recreate the resource leading to a duplicate
resource definition error.
ENDOFDOC
) do |vals|
type, title, params = vals
raise(ArgumentError, 'Must specify a type') unless type
raise(ArgumentError, 'Must specify a title') unless title
params ||= {}
Puppet::Parser::Functions.function(:defined_with_params)
if function_defined_with_params(["#{type}[#{title}]", params])
Puppet.debug("Resource #{type}[#{title}] not created b/c it already exists")
else
Puppet::Parser::Functions.function(:create_resources)
function_create_resources([type.capitalize, { title => params }])
end
end
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