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annotate modules/stdlib/lib/puppet/parser/functions/any2bool.rb @ 482:d83de9b3a62b default tip
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| author | IBBoard <dev@ibboard.co.uk> |
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| date | Fri, 30 Aug 2024 16:10:36 +0100 |
| parents | adf6fe9bbc17 |
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| rev | line source |
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1 # frozen_string_literal: true |
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2 |
| 272 | 3 # |
| 4 # any2bool.rb | |
| 5 # | |
| 6 module Puppet::Parser::Functions | |
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7 newfunction(:any2bool, type: :rvalue, doc: <<-DOC |
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8 @summary |
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9 Converts 'anything' to a boolean. |
| 272 | 10 |
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11 In practise it does the following: |
| 272 | 12 * Strings such as Y,y,1,T,t,TRUE,yes,'true' will return true |
| 13 * Strings such as 0,F,f,N,n,FALSE,no,'false' will return false | |
| 14 * Booleans will just return their original value | |
| 15 * Number (or a string representation of a number) > 0 will return true, otherwise false | |
| 16 * undef will return false | |
| 17 * Anything else will return true | |
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18 |
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19 Also see the built-in [`Boolean.new`](https://puppet.com/docs/puppet/latest/function.html#conversion-to-boolean) |
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20 function. |
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21 |
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22 @return [Boolean] The boolean value of the object that was given |
| 272 | 23 DOC |
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24 ) do |arguments| |
| 272 | 25 raise(Puppet::ParseError, "any2bool(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty? |
| 26 | |
| 27 # If argument is already Boolean, return it | |
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28 return arguments[0] if !!arguments[0] == arguments[0] # rubocop:disable Style/DoubleNegation : Could not find a better way to check if a boolean |
| 272 | 29 |
| 30 arg = arguments[0] | |
| 31 | |
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32 return false if arg.nil? |
| 272 | 33 |
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34 return false if arg == :undef |
| 272 | 35 |
| 36 valid_float = begin | |
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37 !!Float(arg) # rubocop:disable Style/DoubleNegation : Could not find a better way to check if a boolean |
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38 rescue StandardError |
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39 false |
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40 end |
| 272 | 41 |
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42 return function_num2bool([arguments[0]]) if arg.is_a?(Numeric) |
| 272 | 43 |
| 44 if arg.is_a?(String) | |
| 45 return function_num2bool([arguments[0]]) if valid_float | |
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46 |
| 272 | 47 return function_str2bool([arguments[0]]) |
| 48 end | |
| 49 | |
| 50 return true | |
| 51 end | |
| 52 end | |
| 53 | |
| 54 # vim: set ts=2 sw=2 et : |