Puppet Function: check_devices

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

Overview

check_devices() ⇒ Any

\ Check that devices exist and are block devices.

Example: check_devices([‘/dev/sdb’, ‘/dev/sdc’], $::blockdevices)

Returns:

  • (Any) 


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# File 'lib/puppet/parser/functions/check_devices.rb', line 2

newfunction(:check_devices, :type => :rvalue, :doc => "\
  Check that devices exist and are block devices.

  Example: check_devices(['/dev/sdb', '/dev/sdc'], $::blockdevices)") do |args|

  raise(Puppet::ParseError, "check_devices(): Wrong number of arguments " +
    "given (#{args.size} for 2)") if args.size != 2

  # Strip /dev/ from devices
  devices = args[0].map { |d| d.split('/')[2] }

  # Fact comes as a comma separated string
  blockdevs = args[1].split(',')

  [devices, blockdevs].each do |device|
    unless [Array].include?(device.class)
      raise(Puppet::ParseError, "check_devices(): Requires and Array (given (#{device.class}))")
    end
  end

  return (devices - blockdevs).empty?
end