puppetlabs-stdlib/lib/puppet/parser/functions/defined_with_params.rb
Dan Bode 4f8b133917 Handle undef for parameter argument
This commit adds better handling of the case where
undef is passed as the parameter value.

This works by converting '' into []
2012-10-25 10:54:33 -07:00

35 lines
1 KiB
Ruby

# 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|
resource[key] == value
end
ret = params.empty? || !matches.include?(false)
end
Puppet.debug("Resource #{reference} was not determined to be defined")
ret
end