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| # | |
| # sorted_json.rb | |
| # Puppet module for outputting json in a sorted consistent way. I use it for creating config files with puppet | |
| require 'json' | |
| def sorted_json(data) | |
| if (data.is_a?(Fixnum) || | |
| data.is_a?(Float) || | |
| data.is_a?(NilClass) || | |
| data.is_a?(Symbol) || | |
| data.is_a?(String) || | |
| !!data == data) | |
| data.to_json | |
| elsif data.is_a? Array | |
| '[' + data.map { |x| sorted_json(x) }.join(',') + ']' | |
| elsif data.is_a? Hash | |
| data = data.inject({}) { |m, (k, v)| m[k.to_s] = v; m } | |
| '{' + data.keys.sort.map { |k| k.to_json + ':' + sorted_json(data[k]) }.join(',') + '}' | |
| else | |
| raise Exception('Unable to handle object type ' + data.class) | |
| 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 | |
| sorted_json(arguments[0]) | |
| end | |
| end | |
| # vim: set ts=2 sw=2 et : |
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