77625e6d8f
During a puppet run an error will be thrown and a puppet run will fail completely (when using validate_slength): undefined local variable or method `arg' for #<Puppet::Parser::Scope:0x7f243c236948>
67 lines
3.1 KiB
Ruby
67 lines
3.1 KiB
Ruby
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. An optional third
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parameter can be given a the minimum length. It fails if the first
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argument is not a string or array of strings, and if arg 2 and arg 3 are
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not convertable 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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validate_slength(["discombobulate","moo"],17,3)
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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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validate_slength(["discombobulate","moo"],17,10)
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ENDHEREDOC
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raise Puppet::ParseError, ("validate_slength(): Wrong number of arguments (#{args.length}; must be 2 or 3)") unless args.length == 2 or args.length == 3
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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 max length parameter to an integer - sorry: " + e.message )
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end
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unless args.length == 2
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begin
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min_length = Integer(args[2])
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rescue StandardError => e
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raise Puppet::ParseError, ("validate_slength(): Couldn't convert whatever you passed as the min length parameter to an integer - sorry: " + e.message )
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end
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else
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min_length = 0
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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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raise Puppet::ParseError, ("validate_slength(): please pass a positive number as min_length") unless min_length >= 0
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raise Puppet::ParseError, ("validate_slength(): please pass a min length that is smaller than the maximum") unless min_length <= max_length
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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 between #{min_length} and #{max_length} characters") unless args[0].length <= max_length and min_length <= args[0].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 and min_length <= arg.length)
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raise Puppet::ParseError, ("validate_slength(): #{arg.inspect} is #{arg.length} characters. It should have been between #{min_length} and #{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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