Last change
on this file since 30903 was 30903, checked in by davidb, 8 years ago |
Vagrant provisioning files for a 4-node Hadoop cluster. See README.txt for more details
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File size:
945 bytes
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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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