/usr/share/puppet/modules.available/puppetlabs-stdlib/lib/puppet/parser/functions/unique.rb is in puppet-module-puppetlabs-stdlib 4.14.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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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|
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
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