53 lines
2.3 KiB
Ruby
53 lines
2.3 KiB
Ruby
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module Puppet::Parser::Functions
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newfunction(:validate_slength, :doc => <<-'ENDHEREDOC') do |args|
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Validate that the first argument is a string (or an array of strings), and
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less/equal to than the length of the second argument. It fails if the first
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argument is not a string or array of strings, and if arg 2 is not convertable
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to a number.
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The following values will pass:
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validate_slength("discombobulate",17)
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validate_slength(["discombobulate","moo"],17)
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The following valueis will not:
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validate_slength("discombobulate",1)
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validate_slength(["discombobulate","thermometer"],5)
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ENDHEREDOC
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raise Puppet::ParseError, ("validate_slength(): Wrong number of arguments (#{args.length}; must be = 2)") unless args.length == 2
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unless (args[0].is_a?(String) or args[0].is_a?(Array))
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raise Puppet::ParseError, ("validate_slength(): please pass a string, or an array of strings - what you passed didn't work for me at all - #{args[0].class}")
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end
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begin
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max_length = args[1].to_i
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rescue NoMethodError => e
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raise Puppet::ParseError, ("validate_slength(): Couldn't convert whatever you passed as the length parameter to an integer - sorry: " + e.message )
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end
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raise Puppet::ParseError, ("validate_slength(): please pass a positive number as max_length") unless max_length > 0
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case args[0]
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when String
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raise Puppet::ParseError, ("validate_slength(): #{args[0].inspect} is #{args[0].length} characters. It should have been less than or equal to #{max_length} characters") unless args[0].length <= max_length
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when Array
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args[0].each do |arg|
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if arg.is_a?(String)
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unless ( arg.is_a?(String) and arg.length <= max_length )
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raise Puppet::ParseError, ("validate_slength(): #{arg.inspect} is #{arg.length} characters. It should have been less than or equal to #{max_length} characters")
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end
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else
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raise Puppet::ParseError, ("validate_slength(): #{arg.inspect} is not a string, it's a #{arg.class}")
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end
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end
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else
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raise Puppet::ParseError, ("validate_slength(): please pass a string, or an array of strings - what you passed didn't work for me at all - #{args[0].class}")
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end
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end
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end
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