[30960] | 1 | #
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| 2 | # any2bool.rb
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| 3 | #
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| 4 |
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| 5 | module Puppet::Parser::Functions
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| 6 | newfunction(:any2bool, :type => :rvalue, :doc => <<-EOS
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| 7 | This converts 'anything' to a boolean. In practise it does the following:
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| 8 |
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| 9 | * Strings such as Y,y,1,T,t,TRUE,yes,'true' will return true
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| 10 | * Strings such as 0,F,f,N,n,FALSE,no,'false' will return false
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| 11 | * Booleans will just return their original value
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| 12 | * Number (or a string representation of a number) > 0 will return true, otherwise false
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| 13 | * undef will return false
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| 14 | * Anything else will return true
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| 15 | EOS
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| 16 | ) do |arguments|
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| 17 |
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| 18 | raise(Puppet::ParseError, "any2bool(): Wrong number of arguments " +
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| 19 | "given (#{arguments.size} for 1)") if arguments.size < 1
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| 20 |
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| 21 | # If argument is already Boolean, return it
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| 22 | if !!arguments[0] == arguments[0]
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| 23 | return arguments[0]
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| 24 | end
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| 25 |
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| 26 | arg = arguments[0]
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| 27 |
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| 28 | if arg == nil
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| 29 | return false
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| 30 | end
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| 31 |
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| 32 | if arg == :undef
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| 33 | return false
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| 34 | end
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| 35 |
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| 36 | valid_float = !!Float(arg) rescue false
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| 37 |
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| 38 | if arg.is_a?(Numeric)
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| 39 | return function_num2bool( [ arguments[0] ] )
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| 40 | end
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| 41 |
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| 42 | if arg.is_a?(String)
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| 43 | if valid_float
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| 44 | return function_num2bool( [ arguments[0] ] )
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| 45 | else
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| 46 | return function_str2bool( [ arguments[0] ] )
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| 47 | end
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| 48 | end
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| 49 |
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| 50 | return true
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| 51 |
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| 52 | end
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| 53 | end
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| 54 |
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| 55 | # vim: set ts=2 sw=2 et :
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