diff options
Diffstat (limited to 'puppet/modules/site_config/lib/puppet/parser/functions/sorted_json.rb')
-rw-r--r-- | puppet/modules/site_config/lib/puppet/parser/functions/sorted_json.rb | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/puppet/modules/site_config/lib/puppet/parser/functions/sorted_json.rb b/puppet/modules/site_config/lib/puppet/parser/functions/sorted_json.rb new file mode 100644 index 00000000..605da00e --- /dev/null +++ b/puppet/modules/site_config/lib/puppet/parser/functions/sorted_json.rb @@ -0,0 +1,47 @@ +# +# Written by Gavin Mogan, from https://gist.github.com/halkeye/2287885 +# Put in the public domain by the author. +# + +require 'json' + +def sorted_json(obj) + case obj + when String, Fixnum, Float, TrueClass, FalseClass, NilClass + return obj.to_json + when Array + arrayRet = [] + obj.each do |a| + arrayRet.push(sorted_json(a)) + end + return "[" << arrayRet.join(',') << "]"; + when Hash + ret = [] + obj.keys.sort.each do |k| + ret.push(k.to_json << ":" << sorted_json(obj[k])) + end + return "{" << ret.join(",") << "}"; + else + raise Exception("Unable to handle object of type <%s>" % obj.class.to_s) + end +end + +module Puppet::Parser::Functions + newfunction(:sorted_json, :type => :rvalue, :doc => <<-EOS +This function takes data, outputs making sure the hash keys are sorted + +*Examples:* + + sorted_json({'key'=>'value'}) + +Would return: {'key':'value'} + EOS + ) do |arguments| + raise(Puppet::ParseError, "sorted_json(): Wrong number of arguments " + + "given (#{arguments.size} for 1)") if arguments.size != 1 + + json = arguments[0] + return sorted_json(json) + end +end + |