summaryrefslogtreecommitdiff
path: root/lib/puppet
diff options
context:
space:
mode:
Diffstat (limited to 'lib/puppet')
-rw-r--r--lib/puppet/parser/functions/has_element.rb28
1 files changed, 28 insertions, 0 deletions
diff --git a/lib/puppet/parser/functions/has_element.rb b/lib/puppet/parser/functions/has_element.rb
new file mode 100644
index 0000000..e29bbb9
--- /dev/null
+++ b/lib/puppet/parser/functions/has_element.rb
@@ -0,0 +1,28 @@
+module Puppet::Parser::Functions
+
+ newfunction(:has_element, :type => :rvalue, :doc => <<-'ENDHEREDOC') do |args|
+ Determine if an array has an element with a matching value.
+
+ Example:
+
+ $my_array = ['key_one']
+ if has_element($my_array, 'key_two') {
+ notice('we will not reach here')
+ }
+ if has_element($my_array, 'key_one') {
+ notice('this will be printed')
+ }
+
+ ENDHEREDOC
+
+ unless args.length == 2
+ raise Puppet::ParseError, ("has_element(): wrong number of arguments (#{args.length}; must be 2)")
+ end
+ unless args[0].is_a?(Array)
+ raise Puppet::ParseError, "has_element(): expects the first argument to be an array, got #{args[0].inspect} which is of type #{args[0].class}"
+ end
+ args[0].include?(args[1])
+
+ end
+
+end