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#
# unique.rb
#
module Puppet::Parser::Functions
newfunction(:unique, :type => :rvalue, :doc => <<-EOS
This function will remove duplicates from strings and arrays.
*Examples:*
unique("aabbcc")
Will return:
abc
You can also use this with arrays:
unique(["a","a","b","b","c","c"])
This returns:
["a","b","c"]
EOS
) do |arguments|
if Puppet::Util::Package.versioncmp(Puppet.version, '5.0.0') >= 0
function_deprecation([:unique, 'This method is deprecated, please use the core puppet unique function. There is further documentation for the function in the release notes of Puppet 5.0.'])
end
raise(Puppet::ParseError, "unique(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.size < 1
value = arguments[0]
unless value.is_a?(Array) || value.is_a?(String)
raise(Puppet::ParseError, 'unique(): Requires either array or string to work with')
end
result = value.clone
string = value.is_a?(String) ? true : false
# We turn any string value into an array to be able to shuffle ...
result = string ? result.split('') : result
result = result.uniq # Remove duplicates ...
result = string ? result.join : result
return result
end
end
# vim: set ts=2 sw=2 et :
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