From b42c82af19f64ed4398863092971c7ba81298a02 Mon Sep 17 00:00:00 2001 From: Dan Bode Date: Wed, 15 Aug 2012 15:56:57 -0700 Subject: Revert "Revert "Merge pull request #86 from bodepd/ensure_resource"" This reverts commit 1e0983362464e8f2832239b09cdbc9175a51e6ec. --- lib/puppet/parser/functions/ensure_resource.rb | 33 ++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 lib/puppet/parser/functions/ensure_resource.rb (limited to 'lib/puppet/parser/functions/ensure_resource.rb') diff --git a/lib/puppet/parser/functions/ensure_resource.rb b/lib/puppet/parser/functions/ensure_resource.rb new file mode 100644 index 0000000..6a9e2ed --- /dev/null +++ b/lib/puppet/parser/functions/ensure_resource.rb @@ -0,0 +1,33 @@ +# 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 ||= {} + if function_defined_with_params(["#{type}[#{title}]", params]) + Puppet.debug("Resource #{type}[#{title}] not created b/c it already exists") + else + function_create_resources([type.capitalize, { title => params }]) + end +end -- cgit v1.2.3