Puppet Function: shell_join

Defined in:
puppet/modules/stdlib/lib/puppet/parser/functions/shell_join.rb
Function type:
Ruby 3.x API

Overview

shell_join() ⇒ Any

Builds a command line string from the given array of strings. Each array item is escaped for Bourne shell. All items are then joined together, with a single space in between.

This function behaves the same as ruby's Shellwords.shelljoin() function

Returns:

  • (Any) 


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# File 'puppet/modules/stdlib/lib/puppet/parser/functions/shell_join.rb', line 8

newfunction(:shell_join, :type => :rvalue, :doc => <<-EOS
Builds a command line string from the given array of strings. Each array item is escaped for Bourne shell. All items are
then joined together, with a single space in between.

This function behaves the same as ruby's Shellwords.shelljoin() function
EOS
) do |arguments|

  raise(Puppet::ParseError, "shell_join(): Wrong number of arguments " +
      "given (#{arguments.size} for 1)") if arguments.size != 1

  array = arguments[0]

  raise Puppet::ParseError, ("First argument is not an Array: #{array.inspect}") unless array.is_a?(Array)

  # explicit conversion to string is required for ruby 1.9
  array = array.map { |item| item.to_s }
  result = Shellwords.shelljoin(array)

  return result
end