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author | Dan Bode <dan@puppetlabs.com> | 2012-08-15 15:56:57 -0700 |
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committer | Dan Bode <dan@puppetlabs.com> | 2012-08-15 15:56:57 -0700 |
commit | b42c82af19f64ed4398863092971c7ba81298a02 (patch) | |
tree | b3566a13a2c8fd1930fa826f49f4ba5935de2ed1 /lib/puppet/parser/functions/ensure_resource.rb | |
parent | 1e0983362464e8f2832239b09cdbc9175a51e6ec (diff) | |
download | puppet-stdlib-b42c82af19f64ed4398863092971c7ba81298a02.tar.gz puppet-stdlib-b42c82af19f64ed4398863092971c7ba81298a02.tar.bz2 |
Revert "Revert "Merge pull request #86 from bodepd/ensure_resource""
This reverts commit 1e0983362464e8f2832239b09cdbc9175a51e6ec.
Diffstat (limited to 'lib/puppet/parser/functions/ensure_resource.rb')
-rw-r--r-- | lib/puppet/parser/functions/ensure_resource.rb | 33 |
1 files changed, 33 insertions, 0 deletions
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 |