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authorColleen Murphy <cmurphy@users.noreply.github.com>2015-02-12 15:45:23 -0800
committerColleen Murphy <cmurphy@users.noreply.github.com>2015-02-12 15:45:23 -0800
commitad5727266a5c243cebf8007b9b00ffc80674b4fc (patch)
tree7e0792a13888ccd15bee9d2da13bebfd79071dd3 /lib/puppet
parentafc83ea564520378ac507251ddfea46f8d571829 (diff)
parent84f866ffafbb27a6aa6a1eea92c393a63829e242 (diff)
Merge pull request #406 from elyscape/fix/fqdn_rotate_pollutes_global_seed
(MODULES-1738) Don't modify the global seed in fqdn_rotate()
Diffstat (limited to 'lib/puppet')
-rw-r--r--lib/puppet/parser/functions/fqdn_rotate.rb16
1 files changed, 14 insertions, 2 deletions
diff --git a/lib/puppet/parser/functions/fqdn_rotate.rb b/lib/puppet/parser/functions/fqdn_rotate.rb
index 7f4d37d..cf22d36 100644
--- a/lib/puppet/parser/functions/fqdn_rotate.rb
+++ b/lib/puppet/parser/functions/fqdn_rotate.rb
@@ -31,8 +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
}