diff options
Diffstat (limited to 'lib/puppet/parser/functions/fqdn_rotate.rb')
| -rw-r--r-- | lib/puppet/parser/functions/fqdn_rotate.rb | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/lib/puppet/parser/functions/fqdn_rotate.rb b/lib/puppet/parser/functions/fqdn_rotate.rb index 6558206..cf22d36 100644 --- a/lib/puppet/parser/functions/fqdn_rotate.rb +++ b/lib/puppet/parser/functions/fqdn_rotate.rb @@ -12,10 +12,9 @@ Rotates an array a random number of times based on a nodes fqdn. "given (#{arguments.size} for 1)") if arguments.size < 1 value = arguments[0] - klass = value.class require 'digest/md5' - unless [Array, String].include?(klass) + unless value.is_a?(Array) || value.is_a?(String) raise(Puppet::ParseError, 'fqdn_rotate(): Requires either ' + 'array or string to work with') end @@ -32,8 +31,20 @@ Rotates an array a random number of times based on a nodes fqdn. elements = result.size - srand(Digest::MD5.hexdigest([lookupvar('::fqdn'),arguments].join(':')).hex) - rand(elements).times { + seed = Digest::MD5.hexdigest([lookupvar('::fqdn'),arguments].join(':')).hex + # deterministic_rand() was added in Puppet 3.2.0; reimplement if necessary + if Puppet::Util.respond_to?(:deterministic_rand) + offset = Puppet::Util.deterministic_rand(seed, elements).to_i + else + if defined?(Random) == 'constant' && Random.class == Class + offset = Random.new(seed).rand(elements) + else + srand(seed) + offset = rand(elements) + srand() + end + end + offset.times { result.push result.shift } |