Last change
on this file since 30960 was 30960, checked in by davidb, 8 years ago |
Switch to using Puppet to provision machine. Strongly based on files developed for spark-hdfs cluster
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File size:
945 bytes
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[30960] | 1 | module Puppet::Parser::Functions
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| 2 | newfunction(:delete_undef_values, :type => :rvalue, :doc => <<-EOS
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| 3 | Returns a copy of input hash or array with all undefs deleted.
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| 4 |
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| 5 | *Examples:*
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| 6 |
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| 7 | $hash = delete_undef_values({a=>'A', b=>'', c=>undef, d => false})
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| 8 |
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| 9 | Would return: {a => 'A', b => '', d => false}
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| 10 |
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| 11 | $array = delete_undef_values(['A','',undef,false])
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| 12 |
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| 13 | Would return: ['A','',false]
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| 14 |
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| 15 | EOS
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| 16 | ) do |args|
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| 17 |
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| 18 | raise(Puppet::ParseError,
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| 19 | "delete_undef_values(): Wrong number of arguments given " +
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| 20 | "(#{args.size})") if args.size < 1
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| 21 |
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| 22 | unless args[0].is_a? Array or args[0].is_a? Hash
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| 23 | raise(Puppet::ParseError,
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| 24 | "delete_undef_values(): expected an array or hash, got #{args[0]} type #{args[0].class} ")
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| 25 | end
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| 26 | result = args[0].dup
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| 27 | if result.is_a?(Hash)
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| 28 | result.delete_if {|key, val| val.equal? :undef}
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| 29 | elsif result.is_a?(Array)
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| 30 | result.delete :undef
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| 31 | end
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| 32 | result
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| 33 | end
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| 34 | end
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