module Puppet::Parser::Functions newfunction(:validate_absolute_path, :doc => <<-'ENDHEREDOC') do |args| Validate the string represents an absolute path in the filesystem. This function works for windows and unix style paths. The following values will pass: $my_path = 'C:/Program Files (x86)/Puppet Labs/Puppet' validate_absolute_path($my_path) $my_path2 = '/var/lib/puppet' validate_absolute_path($my_path2) $my_path3 = ['C:/Program Files (x86)/Puppet Labs/Puppet','C:/Program Files/Puppet Labs/Puppet'] validate_absolute_path($my_path3) $my_path4 = ['/var/lib/puppet','/usr/share/puppet'] validate_absolute_path($my_path4) The following values will fail, causing compilation to abort: validate_absolute_path(true) validate_absolute_path('../var/lib/puppet') validate_absolute_path('var/lib/puppet') validate_absolute_path([ 'var/lib/puppet', '/var/foo' ]) validate_absolute_path([ '/var/lib/puppet', 'var/foo' ]) $undefined = undef validate_absolute_path($undefined) ENDHEREDOC require 'puppet/util' unless args.length > 0 then raise Puppet::ParseError, ("validate_absolute_path(): wrong number of arguments (#{args.length}; must be > 0)") end args.each do |arg| # put arg to candidate var to be able to replace it candidates = arg # if arg is just a string with a path to test, convert it to an array # to avoid test code duplication unless arg.is_a?(Array) then candidates = Array.new(1,arg) end # iterate over all paths within the candidates array candidates.each do |path| unless function_is_absolute_path([path]) raise Puppet::ParseError, ("#{path.inspect} is not an absolute path.") end end end end end