39 lines
1.0 KiB
Ruby
39 lines
1.0 KiB
Ruby
module Puppet::Parser::Functions
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newfunction(:validate_string, :doc => <<-'ENDHEREDOC') do |args|
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Validate that all passed values are string data structures. Abort catalog
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compilation if any value fails this check.
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The following values will pass:
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$my_string = "one two"
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validate_string($my_string, 'three')
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The following values will fail, causing compilation to abort:
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validate_string(true)
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validate_string([ 'some', 'array' ])
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Note: validate_string(undef) will not fail in this version of the
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functions API (incl. current and future parser). Instead, use:
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if $var == undef {
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fail('...')
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}
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ENDHEREDOC
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unless args.length > 0 then
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raise Puppet::ParseError, ("validate_string(): wrong number of arguments (#{args.length}; must be > 0)")
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end
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args.each do |arg|
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unless arg.is_a?(String)
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raise Puppet::ParseError, ("#{arg.inspect} is not a string. It looks to be a #{arg.class}")
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end
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end
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end
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end
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